Document:

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                                                                   Exhibit 10.31

                                   AGREEMENT
                   FOR LOCAL WIRELINE NETWORK INTERCONNECTION
                                      AND
                                 SERVICE RESALE
                                    BETWEEN
                            PAC-WEST TELECOMM, INC.
                                      AND
                         U S WEST COMMUNICATIONS, INC.

                                FOR THE STATE OF
                                   WASHINGTON

                                AGREEMENT NUMBER
                                CDS-990507-0143

[NOTE. In this Agreement, plain language corresponds to language agreed to by
the Parties and bold language corresponds to language included to comply with
the Commission's Order. In the footnotes, "Order refers to the Arbitrator's
Report and Decision issued November 27, 1996, "Recommendations' refers to the
Arbitrator's Report and Recommendations issued June 6, 1997, and "Approval"
refers to the Commission Order Modifying Arbitrator's Decision and Arbitrator's
Recommendations and Approving Interconnection Agreement with Modifications
issued July 11, 1997.]

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                               TABLE OF CONTENTS

RECITALS ...................................................................1

SCOPE OF AGREEMENT .........................................................1

DEFINITIONS ................................................................2

TERMS AND CONDITIONS ......................................................12

 1. General Provisions ....................................................12
 2. Most Favored Nation Terms and Treatment ...............................13
 3. Payment ...............................................................13
 4. Taxes .................................................................14
 5. Intellectual Property .................................................14
 6. Severability ..........................................................14
 7. Responsibility for Environmental Contamination ........................15
 8. Branding ..............................................................15
 9. Independent Contractor Status .........................................17
 10. Referenced Documents .................................................18
 11. Publicity and Advertising ............................................18
 12. Executed in Counterparts .............................................18
 13. Headings Not Controlling .............................................18
 14. Joint Work Product ...................................................18
 15. Survival .............................................................18
 16. Effective Date .......................................................19
 17. Amendment of Agreement ...............................................19
 18. Indemnification ......................................................19
 19. Limitation of Liability ..............................................20
 20. Term of Agreement ....................................................21
 21. Governing Law ........................................................21
 22. Cancellation Charge's ................................................21
 23. Regulatory Approvals .................................................21
 24. Compliance ...........................................................22
 25. Force Majeure .................................. .....................22
 26. Escalation Procedures ................................................23
 27. Dispute Resolution ...................................................23
 28. Nondisclosure ........................................................24
 29. Notices ..............................................................26
 30. Assignment ...........................................................26
 31. Warranties ...........................................................27
 32. Default ..............................................................27
 33. Remedies .............................................................28
 34. Waivers ..............................................................28
 35. No Third Party Beneficiaries .........................................28

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 36. Physical Security .....................................................28
 37. Network Security ......................................................29
 38. Revenue Protection ....................................................30
 39. Law Enforcement Interface .............................................30
 40. Collocation ...........................................................30
 41. Technical References - Collocation ....................................41
 42. Number Portability ....................................................42
 43. Dialing Parity ........................................................49
 44. Directory Listings ....................................................49
 45. Directories ...........................................................52
 46. U S WEST Dex Issues ...................................................52
 47. Access to Poles, Ducts, Conduits, and ROW .............................52
 48. Bona Fide Request Process for Further Unbundling ......................57
 49. Audit Process .........................................................60
 50. Miscellaneous Services ................................................62
 51. Unused Transmission Media .............................................77
 52. Service Standards .....................................................80
 53. Entire Agreement ......................................................82

 54. Reservation of Rights .................................................82

ATTACHMENTS

Attachment I                      Rates and Charges
Attachment 2                      Resale
Attachment 3                      Unbundled Access/Elements
Attachment 4                      Interconnection
Attachment 5                      Business Process Requirements
Attachment 6                      Electronic Interfaces
Attachment 7                      Implementation Schedule

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                                                                        Part A

         This Interconnection Agreement (this "Agreement") is made(1) by and
between Pac-West Telecomm, Inc., a California corporation ("Pac-West"), and U S
WEST Communications, Inc., a Colorado corporation ("U S WEST"), to establish the
rates, terms and conditions for local interconnection, local resale, and the
purchase of unbundled network elements (individually referred to as the
"service" or collectively as the "services").

                                    RECITALS

         WHEREAS. pursuant to this Agreement, PAC-WEST and U S WEST will extend
certain arrangements to one another within each LATA in which they both operate
within Washington. This Agreement is a combination of agreed terms and terms
imposed by arbitration under Section 252 of the Communications Act of 1934, as
modified by the Telecommunications Act of 1996. the rules and regulations of the
Federal Communications Commission (the "FCC"), and the orders, rules and
regulations of the Washington Utilities and Transportation Commission (the
"Commission"); and as such does not necessarily rip-resent the position of
either Party on any given issue; and

         WHEREAS, the Parties wish to interconnect their local exchange networks
in a technically and economically efficient manner for the transmission and
termination of calls, so that subscribers of each can seamlessly receive calls
that originate on the other's network and place calls that terminate on the
other's network, and for Pac-West's use in the provision of exchange access
("Local Interconnection"); and

         WHEREAS, Pac-West wishes to purchase Telecommunications Services for
resale to others, and U S WEST is willing to provide such services; and

         WHEREAS, Pac-West wishes to purchase on an unbundled basis Network
Elements, Ancillary Services and Functions and additional features separately or
in any Combination, and to use such services for itself or for the provision of
its Telecommunications Services to others, and U S WEST is willing to provide
such services;

         Now, therefore, in consideration of the terms and conditions contained
herein, Pac-West and U S WEST hereby mutually agree as follows:

                               SCOPE OF AGREEMENT

         A. This Agreement specifies the rights and obligations of each Party
with respect to the purchase and sale of Local Interconnection, Local Resale and
Network Elements in the LATAs in Washington where U S WEST operates.

         B. In the performance of their obligations under this Agreement, the
Parties shall act in good faith and consistently with the intent of the Act
Where notice, approval or similar action by a Party is permitted or required by
any provision of this Agreement (including, without limitation, the obligation
of the Parties to further negotiate the resolution of new or open issues under
this Agreement) such action shall not be unreasonably delayed, withheld or
conditioned.

         C. U S WEST will provide Pac-West with at least the level of service
quality or performance of obligations under this Agreement as U S WEST provides
itself or any other Person with respect to all Telecommunications Services,
Local Interconnection, Services for Resale, and Network Elements as applicable
and shall provide such level of service quality or performance of service
obligations in accordance with the specific requirements agreed to in Attachment
5.

         D. U S WEST shall provide to Pac-West Services for Resale that are
equal in quality, subject to the same conditions (including the conditions in
U S WEST's effective tariffs which are not otherwise

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(1) Per Approval at page 14, paragraph 2 (This footnote is not applicable to
    Pac-West)
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inconsistent with the terms and conditions contained herein), within the same
provisioning time intervals that U S WEST provides these services to itself, its
Affiliates and others, including end users, and in accordance with any
applicable Commission service quality standards, including Standards the
Commission may impose pursuant to Section 252(e)(3) of the Act.

         E. Each Network Element provided by U S WEST to Pac-West shall be at
least equal in the quality of design, performance, features, functions,
capabilities and other characteristics, including, but not limited to, levels
and types of redundant equipment and facilities for power, diversity and
security, that U S WEST provides to itself, U S WEST's own subscribers, to a U S
WEST Affiliate or to any other entity.

         F. The Parties agree to work jointly and cooperatively in testing and
implementing processes for pre-ordering, ordering, maintenance, provisioning and
billing and in reasonably resolving issues which result from such implementation
on a timely basis.

         G. If a Party makes a change in its network which it believes will
materially affect the interoperability of its network with that of the other
Party, the Party making the change shall provide advance notice of such change
to the other Party in accordance with applicable FCC or Commission regulations

         H. In accordance with Section 251(c)(5) of the Act and the rules and
regulations established by the FCC and the Commission, the Parties shall provide
reasonable notice of changes in the information necessary for the transmission
and routing of services using that local exchange carrier's facilities or
network., as well as of any other changes that would affect the interoperability
of those facilities and networks.

         I. Except as otherwise provided for in Section 8 of Attachment 2, U S
WEST shall not discontinue or refuse to provide any service required hereunder
without Pac-West's prior written agreement in accordance with Section 17 of this
Part A of this Agreement, nor shall U S WEST reconfigure, reengineer or
otherwise redeploy its network in a manner which would materially impair
Pac-West's ability to offer Telecommunications Services in the manner
contemplated by this Agreement, the Act or the FCC's rules and regulations. U S
WEST agrees that all obligations undertaken pursuant to this Agreement,
including, without limitation, performance standards, intervals, and technical
requirements are material obligations hereof and that time is of the essence.

                                  DEFINITIONS

         Certain terms used in this Agreement shall have the meanings set forth
herein or as otherwise elsewhere defined throughout this Agreement. Other terms
used but not defined herein will have the meanings ascribed to them in the Act
and the FCC's rules and regulations.

"911 Service" means a universal telephone number which gives the public direct
access to the Public Safety Answering Point (PSAP). Basic 911 service collects
911 calls from one or more local exchange switches that serve a geographic area.
The calls are then sent to the correct authority designated to receive such
calls.

"911 Site Administrator" is a person assigned by Pac-West to establish and
maintain 911 service location information for its subscribers.

"Access Services" refers to interstate and intrastate switched access and
private line transport services.

"Act" means the Communications Act of 1934 (47 U.S.C. Section 151 et seq.), as
amended by the Telecommunications Act of 1996, and as from time to time
interpreted in the duly authorized rules and regulations of the FCC or by the
Commission.

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"ADSL" or "Asymmetrical Digital Subscriber Line" means a transmission technology
which transmits an asymmetrical digital signal using one of several transmission
methods (for example, carder-less AM/PM discrete multi-tone, or discrete wavelet
multi-tone).

'Affiliate" is an entity, as defined in the Act, that directly or indirectly
owns or controls, is owned or controlled by, or is under common ownership or
control with, another entity. For the purposes of this Agreement, "own' or
"control" means to own an equity interest (or equivalent) of at least ten
percent (10%), or the right to control the business decisions, management and
policy of another entity performing any of the obligations set forth in this
Agreement.

"AIN" (Advanced Intelligent Network) is a network functionality that permits
specific conditions to be programmed into a switch which, when met, directs the
switch to suspend call processing and to receive special instructions for
further call handling instructions in order to enable carriers to offer advanced
features and services.

"AIN Services" means architecture and configuration of the AIN Triggers within
the SCP as developed and/or offered by U S WEST to its customers.

"ALI" (Automatic Location Identification) is a database developed for E911
systems that provides for a visual display of the caller's telephone number and
address, and the names of the emergency response agencies responsible for that
address. The ALI also shows an Interim Number Portability (INP) number, if
applicable.

"ALI/DMS" (Automatic Location Identification/Data Management System) means the
emergency service (E911/911) database containing subscriber location information
(including name, address, telephone number, and sometimes special information
from the local service provider) used to determine to which Public Safety
Answering Point (PSAP) to route the call.

"AMA" means the Automated Message Accounting structure that initially records
telecommunication message information. AMA format is contained in the Automated
Message Accounting document, published by Bellcore as GR-1 1 00-CORE, which
defines the industry standard for message recording.

"Ancillary Services" or "Ancillary Functions" means, collectively, the
following: (1) Collocation as described in Section 40 of this Part A of this
Agreement; (2) access to poles, ducts, conduits and rights of way as described
in Section 47 of this Part A of this Agreement; (3) unused transmission media as
described in Section 51 of this Part A of this Agreement; (4) Directory Listings
as described in Section 44 of this Part A of this Agreement (5) E91 1 as
described in Section 50.1 of this Part A of this Agreement (6) Directory
Assistance Service as described in Section 50.2 of this Part A of this Agreement
(7) Operator Services as described in Section 50.3 of this Part A of this
Agreement; (8) Directory Assistance and Listings services requests as described
in Section 50.4 of this Part A of this Agreement; and (9) directory assistance
data as described in Section 50.5 of this Part A of this Agreement.

"ANI" (Automatic Number Identification) is a feature that identifies and
displays the number of a telephone that originates a call.

"ARS" (Automatic Route Selection) is a service feature that provides for
automatic selection of the least expensive or most appropriate transmission
facility for each call based on criteria programmed into the system.

"ASR" (Access Service Request) means the industry standard forms and supporting
documentation used for ordering Access Services. The ASR may be used to order
trunking and facilities between Pac-West and U S WEST for Local Interconnection.

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"BLV/BLI" (Busy Line Verify/Busy Line Interrupt) means an operator call in which
the end user inquires as to the busy status of, or requests an interruption of,
a telephone call.

"Business Day" means any day Monday through Friday except for mutually agreed to
holidays.

"CABS" means the Carrier Access Billing System which is defined in a document
prepared by the Billing Committee of the OBF. The Carrier Access Billing System
document is published by Bellcore in Volumes 1, 1A, 2, 3, 3A, 4 and 5 as Special
Reports SR-OPT-001868, SR-OPT-001 1869. SR-OPT-001871, SR-OPT-001872, SR-OPT-001
873, SR-OPT-001 874, and SR-OPT-001 875, respectively, and contains the
recommended guidelines for the billing of access and other connectivity
services.

"Calling Party Number' or "CPN" is a CCS parameter which refers to the number
transmitted through a network identifying the calling party.

"CCS" (Common Channel Signaling) means a method of digitally transmitting call
set-up and network control data over a digital signaling network fully separate
from the public switched telephone network that carries the actual call.

"Central Office Switch" means a switch used to provide Telecommunications
Services, including, but not limited to:

         (a)  "End Office Switches" which are used to terminate Customer station
              loops for the purpose of interconnecting to each other and to
              trunks;

         (b)  "Tandem Office Switches" which are used to connect and switch
              trunk circuits between and among other Central Office Switches.
              Access tandems provide connections for exchange access and toll
              traffic while local tandems provide connections for local/EAS
              traffic; or

         (c)  Combination End Office/Tandem Office Switches.

"Centrex", including Centrex Plus, means a Telecommunications Service that uses
central office switching equipment for call routing to handle direct dialing of
calls and to provide numerous private branch exchangelike features.

"Charge Number' is a CCS parameter which refers to the number transmitted
through the network identifying the billing number of the calling party.

"CLASS" (Bellcore Service Mark) is a set of call-management service features
that utilize the capability to forward a calling party's number between end
offices as part of call setup. Features include Automatic Callback, Automatic
Recall, Caller ID, Call Trace, and Distinctive Ringing.

"Combinations" means provision by U 3 WEST of two or more connected Network
Elements ordered by Pac-West to provide its Telecommunication Services in a
geographic area or to a specific subscriber and that are placed on the same or
related order by Pac-West, subject to restrictions, if any, imposed by the
Commission.

"Commission" means the Washington Utilities and Transportation Commission.

"Competitive Local Exchange Carrier" or 'CLEC" means an entity authorized to
provide Local Exchange Service that does not otherwise qualify as an incumbent
LEG.

"Conduit" means a tube or protected pathway that may be used to house
communication or electrical cables. Conduit may be underground or above around
(for example, inside buildings) and may contain one or more innerducts.

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"Confidential Information" has the meaning set forth in Section 28 of Part A of
this Agreement

"Contract Year" means a twelve (12) month period during the term of this
Agreement commencing on the Effective Date and each anniversary thereof.

"Control Office" is an exchange carrier center or office designated as its
company's single point of contact for the provisioning and maintenance of its
portion of local interconnection arrangements.

"Custom Calling Features" is a set of call-management service features available
to residential and business subscribers including call-waiting call-forwarding
and three-party calling.

"Customer" means a third-party (residence or business) that subscribes to
Telecommunications Services Provided by either of the Parties.

"DBMS" (Database Management System) is a computer system used to store, sort,
manipulate and update the data required to provide, for example, selective
routing and ALI.

"Databases" are the Network Elements that provide the functionality for storage
of, access to, and manipulation of information required to offer a particular
service and/or capability. Databases include, but are not limited to: Number
Portability, LIDB, Toll Free Number Database, Automatic Location
Identification/Data Management System, and AIN.

"Digital Signal Level" means one of several transmission rates in the time
division multiplexing hierarchy, including, but not limited to:

         "Digital Signal Level 0" or "DS-0" means the 56 or 64 Kbps zero-level
         signal in the time-division multiplex hierarchy.

         "Digital Signal Level 1" or "DS-1" means the 1.544 Mbps first-level
         signal in the time-division multiplex hierarchy. In the time-division
         multiplexing hierarchy of the telephone network, DS-1 is the initial
         level of multiplexing.

         "Digital Signal Level 3" or "DS-3" means the 44.736 Mbps third-level in
         the time-division multiplex hierarchy. In the time-division
         multiplexing hierarchy of the telephone network, DS-3 is defined as the
         third level of multiplexing.

"Directory Assistance Database" refers to any set of subscriber records used by
U S WEST in its provision of live or automated operator-assisted directory
assistance including, but not limited to, 411, 5555-1,212, NPA 555-1212.

"Directory Assistance Service" provides Listings to callers. Directory
Assistance Service may include the option to complete the call at the caller's
direction.

"Directory Listings" or "Listings" refers to subscriber information, including,
but not limited to, name, address and phone numbers, in Directory Assistance
Services or directory products.

"Discloser" means that Party to this Agreement which has disclosed Confidential
Information to the other Party.

"E911" (Enhanced 911 Service) means a telephone communication service which will
automatically route a call dialed "911" to a designated Public Safety Answering
Point (PSAP) attendant and will provide to the attendant the calling party's
telephone number and, when possible, the address from which the call is being
placed, and the emergency response agencies responsible for the location from
which the call was dialed.

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"E911 Message Trunk" is a dedicated line, trunk or channel between two central
offices or switching devices which provides a voice and signaling path for E911
calls.

"EAS" (Extended Area Service) is intraLATA traffic treated as "local" traffic
between exchanges (rather than as 'toll" traffic) as established by the
Commission and as reflected in the effective U S WEST tariffs.

"Effective Date" is the date the Commission approves this Agreement.

"Emergency Response Agency' is a governmental entity authorized to respond to
requests from the public to meet emergencies.

"EMR" means the Exchange Message Record System used among LECs for exchanging
telecommunications message information for billable, non-billable, sample,
settlement and study data. EMIR format is contained in BR-01 0-200-010 CRIS
Exchange Message Record, published by Bellcore, which defines the industry
standard for exchange message records.

"ESN" (Emergency Service Number) is a number assigned to the ALI and selective
routing databases for all subscriber telephone numbers. The ESN designates a
unique combination of fire, police and emergency medical service response
agencies that serve the address location of each in-service telephone number.

"FCC" means the Federal Communications Commission.

"FCC Interconnecton Order" is the Federal Communications Commission's First
Report and Order in FCC Docket No. 96-98 released August 8, 1996, as effective.

"Fiber-Meet" means an Interconnection architecture method whereby the Parties
physically interconnect their networks via an optical fiber interface (as
opposed to an electrical interface) at a mutually agreed upon location.

"Gateway' (ALI Gateway) is a telephone company computer facility that interfaces
with Pac-West's 911 administrative site to receive ALI data from Pac-West.
Access to the Gateway will be via a dial-up modem using a common protocol.

"HDSL" (High-Sit Rate Digital Subscriber Line) means a two-wire or four-wire
transmission technology which typically transmits a DS1-level signal (or, higher
level signals with certain technologies), using, for example, 2 Binary / 1
Quartenary ("2B1 Q").

"IDLC" (Integrated Digital Loop Carrier) means a digital subscriber loop carrier
system which interfaces with the switch digitally at a DS1 (1.544Mbps) or higher
level.

"ILEC" means an incumbent local exchange carrier.

"Information Service Traffic" means traffic which originates on a local access
line and which is addressed to an information service provider.

"INP" (Interim Number Portability) is a service arrangement whereby subscribers
who change local service providers may retain existing telephone numbers with
minimal impairment of quality, reliability, or convenience when remaining at
their current location or changing their location within the geographic area
served by the initial carrier's serving central office.

"Interconnection" is as described in the Act and refers to the connection of
separate pieces of equipment, facilities, or platforms between or within
networks for the purpose of transmission and routing of telephone exchange
service traffic and exchange access traffic.

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"ISDN" (Integrated Services Digital Network) means a switched network service
that provides end-to-end digital connectivity for the simultaneous transmission
of voice and data. Basic Rate Interface-ISDN (BRI-ISDN) provides for a digital
transmission of two 64 Kbps bearer channels and one 16 Kbps data channel
(2B+D). Primary Rate Interface-ISDN (PRI-ISDN) provides for a digital
transmission of twenty-'three (23) 64 Kbps bearer channels and one 64 Kbps data
channel (23B+D).

"IXC" (Interexchange Carrier) means a provider of interexchange
Telecommunications Services.

"LATA" means Local Access Transport Area.

"LEC" means local exchange carrier.

"LTDB" (Line Information Data Base(s)) is an SCP database that provides for such
functions as calling card validation for telephone line number cards issued by
LECs and other entities and validation for collect and billed-to-third-party
services.

"Local Interconnection" shall have the meaning set forth in the Recitals to this
Agreement.

"Local Resale', "Services for Resale" or "Resale Services" means, collectively,
Telecommunications Services and service functions provided by U S WEST to
Pac-West pursuant to Attachment 2 of 'this Agreement.

"Local Traffic" is intraLATA traffic within an exchange that is treated as toll
free traffic as established by the Commission and as reflected in the effective
tariffs of U S WEST.

"Loop" is a transmission facility between a distribution frame, or its
equivalent, in a U S WEST central office or wire center, and the Network
Interface Device (as defined herein) or network interface at a subscriber's
premises, to which Pac-West is granted exclusive use. This includes, but is not
limited to, two-wire and fourwire analog voice-grade loops, and two-wire and
four-wire loops that are conditioned to transmit the digital signals needed to
provide ISDN, ADSL, HDSL, and DS-1 level signals. A Loop may be composed of the
following components:

                           Loop Concentrator / Multiplexer
                           Loop Feeder
                           Network Interface Device (NID)
                           Distribution

"Main Distribution Frame" or "MDF" means the distribution frame of the Party
providing the Loop used to interconnect cable pairs and line and trunk equipment
terminals on a switching system or transmission facility.

"MECAB" refers to the Multiple Exchange Carrier Access Billing (MECAB) document
prepared by the Billing Committee of the OBF, which functions under the auspices
of the Carrier Liaison Committee (CLC) of the Alliance for Telecommunications
Industry Solutions (ATIS). The MECAB document, published by Bellcore as Special
Report SR-BDS-000983, contains the recommended guidelines for the billing of an
Access Service provided by two or more LECs (including a LEC and a CLEC), or by
one LEC in two or more states within a single LATA.

"MECOD" refers to the Multiple Exchange Carriers Ordering and Design (MECOD)
Guidelines for Access Services - industry Support Interface, a document
developed by the Ordering/Provisioning Committee under the auspices of the OBF,
which functions under the auspices of the Carrier Liaison Committee (CLC) of the
Alliance for Telecommunications Industry Solutions (ATIS). The MECOD document,
published by Bellcore as Special Report SIR STS-002643, establishes recommended
guidelines for processing orders for Access

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Service which is to be provided by two or more LECs (including a LEC and a
CLEC). It is published by Bellcore as SRBIDS 00983.

"Meet-Point Billing" or "MPB" refers to an arrangement whereby two LECs
(including a LEC and Pac-West) jointly provide Switched Access Service to an
Interexchange Carrier, with each LEC (or Pac-West) receiving an appropriate
share of the access element revenues.

"Mid-Span Meet" is a Point of Interconnection between two networks. designated
has two Telecommunications Carriers, at which one carrier's responsibility for
service begins and the other carriers responsibility ends.

"MSAG" (Master Street Address Guide) is a database defining the geographic area
of an E91 1 service. It includes an alphabetical list of the street names,
high-low house number ranges, community names, and emergency service numbers
provided by the counties or their agents to U S WEST.

"NANP" (North American Numbering Plan) means the numbering plan used in the
United States that also serves Canada, Bermuda, Puerto Rico and certain
Caribbean Islands. The NANP format is a 10-digit number that consists of a
3-digit NPA code (commonly referred to as the area code), followed by a 3-digit
NXX code and 4-digit line number.

"NENA" (National Emergency Number Association) is an association with a mission
to foster the technological advancement, availability and implementation of 911
nationwide.

"Network Element" means a facility or equipment used in the provision of a
Telecommunications Service including all features, functions and capabilities
embedded in such facility or equipment.(2)

"NP" (Number Portability) means the use of the Location Routing Number (LRN)
database solution to provide fully transparent NP for all subscribers and all
providers without limitation.

"NPA" (Numbering Plan Area) (sometimes referred to as an area code) is the three
digit indicator which is designated by the first three digits of each 10-digit
telephone number within the NANP. Each NPA contains 792 possible NXX Codes.
There are two general categories of NPA, "Geographic NPAs" and "NonGeographic
NPAs." A "Geographic NPA" is associated with a defined geographic area, and all
telephone numbers bearing such NPA are associated with services provided within
that geographic area. A "NonGeographic NPA," also known as a "Service Access
Code (SAC Code)" is typically associated with a specialized Telecommunications
Service which may be provided across multiple geographic NPA areas; 500, 800,
900, 700, and 888 are examples of Non-Geographic NPAs.

"NXX" means the fourth, fifth and sixth digits of a ten-digit telephone number
within the NANP.

"OBF" means the Ordering and Billing Forum, which functions under the auspices
of the Carrier Liaison Committee (CLC) of the Alliance for Telecommunications
Industry Solutions (ATIS).

"Operator Services" includes, but is not limited to, (1) operator handling for
call completion (e.g., collect calls); (2) operator or automated assistance for
billing after the subscriber has dialed the called number (e.g., credit card
calls); and (3) special services (e.g., BLV/BLI, emergency agency call).

"Operator Systems" is the Network Element that provides operator and automated
call handling with billing, special services, subscriber telephone listings, and
optional C211 completion services.

"P.01 Transmission Grade of Service" (GOS) means a trunk facility provisioning
standard with the statistical probability of no more than one call in 100
blocked on initial attempt during the average busy hour.

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2 Per Order at page 10, Issue 18.

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"PLU" (Percent Local Usage) is a calculation which represents the ratio of the
local minutes to the sum of local and intraLATA toll minutes between exchange
carriers sent over Local Interconnection trunks. Directory assistance, BLV/BLI.
900, 976, transiting calls from other exchange carriers and switched access
calls are not included in the calculation of PLU.

"Party" means either U S WEST or Pac-West and "Parties" means U S WEST and
Pac-West.

"Person" means, collectively, an Affiliate, subsidiary, Customer, end user and
subscriber of U S WEST.

"POI" (Point of Interconnection) means the physical point that establishes the
technical interface, the test point, where applicable, and the operational
responsibility hand-off between Pac-West and U S WEST for the local
interconnection of their networks for the mutual exchange of traffic.

"Point of Interface" is the physical point where Pac-West hands off transmission
media to the U S WEST provided entrance facility associated with a collocation
arrangement for the purpose of connecting the entrance facility to some point
located within U S WEST's premises.

"Pole Attachment" means the connection of a facility to a utility pole. Some
examples of facilities are mechanical hardware, grounding and transmission
cable, and equipment boxes.

"POP" means an IXC's point of presence.

"Port" means a termination on a Central Office Switch that permits Customers to
send or receive Telecommunications Services over the public switched network,
including switch features or switching functionality.(3)

"Premium Listing", such as additional, foreign, cross reference, informational,
non-listed, privacy, etc., are as described in the U S WEST general exchange
listing tariff.

"Primary Listing" (for example, main list, additional main, joint user, client
main list or answering service list) shall mean the one appearance of an end
user telephone subscriber's main telephone number and other content such as name
and address, which each Pac-West residence or business subscriber is entitled to
receive in the white pages directory published by U S WEST Dex at no charge from
U S WEST Communications. Where U S WEST business end users are entitled to
receive a courtesy Listing in the yellow pages section of any directory
published on U S WEST's behalf, Pac-West's business customers will receive the
same entitlement.

"Proprietary Information" shall have the same meaning as Confidential
Information.

"PSAP" (Public Safety Answering Point) is the public safety communications
center where 911 calls placed by the public for a specific geographic area will
be answered.

"Rate Center" means the geographic point and corresponding geographic area which
are associated with one or more particular NPA-NXX codes which have been
assigned to U S WEST or Pac-West for its provision of basic exchange
Telecommunications Services. The "Rate Center Point" is the finite geographic
point identified by a specific V&H coordinate, which is used to measure
distance-sensitive end user traffic to/from the particular NPA-NXX designations
associated with the specific Rate Center. The "Rate Center Area" is the
exclusive geographic area identified as the area within which U S WEST or
Pac-West will provide basic exchange Telecommunications Services bearing the
particular NPA-NXX designations associated with the specific Rate Center. The
Rate Center Point must be located within the Rate Center Area.

----------

3 Per Order at page 10, Issue 18.

                                       9
<PAGE>

"Rating Point" means the point at which transport mileage is calculated for the
termination of calls. Each Party shall establish its own Rating Point(s) for its
own services.

"Real Time" means the actual time in which an event takes place, with the
reporting on or the recording of 'the event simultaneous with its occurrence.

"Recipient" means that Party to this Agreement (1) to which Confidential
Information has been disclosed by the other Party, or (2) who has obtained
Confidential Information in the course of providing services under this
Agreement.

"Reseller" is a category of Telecommunications Services providers who obtain
Telecommunications Services from another provider through the purchase of
wholesale priced services for resale to their end user subscribers.

"Routing Point" means a location which U S WEST or Pac-West has designated on
its own network as the homing (routing) point for traffic inbound to basic
exchange Telecommunications Services provided by U S WEST or Pac-West which bear
a certain NPA-NXX designation The Routing Point is employed to calculate mileage
measurements for the distance-sensitive transport element charges of Switched
Access Services. Pursuant to Bellcore Practice BR 795-100-100, the Routing Point
maybe an "End Office' location, or a "LEC Consortium Point of Interconnection."
Pursuant to that same Bellcore Practice, examples of the latter shall be
designated by a common language location identifier (CLLI) code with (x)KD in
positions 9, 10, 11, where (x) may by any alphanumeric A-Z or 0-9. The Routing
Point need not be the same as the Rate Center Point, nor must it be located
within the Rate Center Area, but must be in the same LATA as the NPA-NXX.

"ROW" (Right of Way) means the right to use the land or other property owned,
leased, or controlled by another party to place poles, conduits, cables, other
structures and equipment, or to provide passage to access such structures and
equipment A ROW may run under, on, or above public or private property
(including air space above public or private property) and may include the right
to use discrete space in buildings, building complexes or other locations.

"SAG" (Street Address Guide) is a database containing an alphabetical list of
street names, high-low house number ranges, descriptive addresses, community
names, tax codes, subscriber names, telephone numbers, NXXs, central office
names, CLLI and other information maintained by U S WEST.

"SCP" (Service Control Point) is a specific type of Database Network Element
functionality deployed in a Signaling System 7 (SS7) network that executes
service application logic in response to SS7 queries sent to it by a switching
system also connected to the SS7 network. SCPs also provide operational
interfaces to allow for provisioning, administration and maintenance of
subscriber data and service application data (e.g., a toll free database stores
subscriber record data that provides information necessary to route toll free
calls).

"SECAB" means the Small Exchange Carrier Access Billing document prepared by the
Billing Committee of the OBF. The Small Exchange Carrier Access Billing
document, published by Bellcore as Special Report SR OPT-001 856, contains the
recommended guidelines for the billing of access and other connectivity
services.

"Selective Routing" is a service which automatically routes an E911 call to the
PSAP that has jurisdictional responsibility for the service address of the
telephone from which 911 is dialed, irrespective of telephone company exchange
or wire center boundaries.

"STPs" (Signaling Transfer Points) provide functionality that enable the
exchange of SS7 messages among and between switching elements, database elements
and Signaling Transfer Points.

"Switch" - See Central Office Switch.

                                       10
<PAGE>

"Switched Access", "Switched Access Service", "Switched Exchange Access Service'
or "Switched Access Traffic" are as defined in the Parties' applicable tariffs.

"Tandem Office Switches" are Class 4 switches which are used to connect and
switch trunk circuits between and among End Office Switches and other tandems.

"Tariff Services" as used throughout this Agreement refers to the applicable
Party's interstate tariffs and state tariffs, price lists, price schedules and
catalogs.

"Technically Feasible" refers solely to technical or operational concerns,
rather than economic, space, or site considerations, in accordance with the
rules and regulations of the FCC and the Commission.

"Telecommunications" means the transmission, between or among points specified
by the user, of information of the user's choosing, without change in the form
or content of the information as sent and received.

"Telecommunications Carrier" means any provider of Telecommunications Services,
except that such term does not include aggregators of Telecommunications
Services (as defined in Section 226 of the Act). A Telecommunications Carrier
shall be treated as a common carrier under the Act only to the extent that it is
engaged in providing Telecommunications Services, except that the Commission
shall determine whether the provision of fixed and mobile satellite service
shall be treated as common carriage.

"Telecommunications Services" means the offering of Telecommunications for a fee
directly to the public, or to such classes of users as to be effectively
available directly to the public, regardless of the facilities used.

"Toll Traffic" is traffic that originates in one Rate Center and terminates in
another Rate Center with the exception of traffic that is rated as EAS.

"Transit Service" provides the ability for a Telecommunications Carrier to use
its connection to a local or access tandem for delivery of calls that originate
with a Telecommunications Carrier and terminate to a company other than the
tandem company, such as another CLEC, an existing LEC, or a wireless carrier. In
these cases, neither the originating nor terminating end user is a customer of
the tandem Telecommunications Carrier. The tandem Telecommunications Carrier
will accept traffic originated by a Party and will terminate it at a Point of
Interconnection with another local, intraLATA or interLATA network
Telecommunications Carrier. This service is provided through local and access
tandem switches.

"Transit Traffic" is any traffic, other than Switched Access Traffic, that
originates from one Telecommunications Carrier's network, transits another
Telecommunications Carrier's network, and terminates to yet another
Telecommunications Carrier's network.

"TRCO" means Trouble Reporting Control Office.

"U S WEST" means U S WEST Communications, Inc. and any Affiliates, subsidiary
companies or other entities performing any of the obligations of U S WEST set
forth in this Agreement.

"Voluntary Federal Subscriber Financial Assistance Programs" are
Telecommunications Services provided to low-income subscribers, pursuant to
requirements established by the appropriate federal or state regulatory body.

"Wire Center" denotes, for the purposes of collocation, a building or space
within a building, that serves as an aggregation point on a given carrier's
network, where transmission facilities and circuits are connected or switched.
Wire Center can also denote a building where one or more central offices, used
for the provision of

                                       11
<PAGE>

Telecommunications Services and Access Services, are located. Wire Center shall
mean those points eligible for such connections as specified in FCC Docket No.
91-141, and rules adopted pursuant thereto.

                              TERMS AND CONDITIONS

1.        General Provisions

          1.1       Each Party is individually responsible to provide facilities
                    within its network which are necessary for routing,
                    transporting, measuring, and billing traffic from the other
                    Party's network and for delivering such traffic to the other
                    Party's network in the standard format compatible with
                    Pac-West's network and to terminate the traffic it receives
                    in that standard format or the proper address on its
                    network. The Parties are each solely responsible for
                    participation in and compliance with national network plans,
                    including the National Network Security Plan and the
                    Emergency Preparedness Plan.

          1.2       Neither Party shall impair the quality of service to other
                    carriers or to either Party's Customers, and each Party may
                    discontinue or refuse service if the other Party violates
                    this provision. Upon such violation, either Party shall
                    provide the other Party notice of such violation, at the
                    earliest practicable time.

          1.3       Each Party is solely responsible for the services it
                    provides to its Customers and to other Telecommunications
                    Carriers.

                    1.3.1     The Parties recognize that equipment vendors may
                              manufacture telecommunications equipment that does
                              not fully incorporate and may deviate from
                              industry Standards referenced in this Agreement.
                              Due to the manner in which individual equipment
                              manufacturers have chosen to implement industry
                              standards into the design of their products, along
                              with differing vintages of individual facility
                              components and the presence of embedded
                              technologies pre-dating current technical
                              standards, some of the individual facility
                              components deployed within U S WEST's network,
                              including, without limitation, Network Elements
                              and associated business processes and the
                              standards associated with the equipment providing
                              such Network Elements (collectively, "Network
                              Components'), may not adhere to all the
                              specifications set forth and described in the
                              Bellcore, ANSI, ITU and other technical and
                              performance standards outlined in this Agreement.
                              Within forty-five (45) days after the Effective
                              Date of this Agreement, the Parties will develop
                              processes by which U S WEST will inform Pac-West
                              of deviations or planned deviations, and the
                              implementation date of such planned deviations,
                              from standards referenced in this Agreement for
                              Network Components that may be ordered by
                              Pac-West. In addition, the Parties agree that
                              those deviations from such standards documented by
                              U S WEST to Pac-West shall, to the extent
                              permitted by FCC and Commission rules and
                              regulations, supersede sections of this Agreement
                              referencing technical standards otherwise
                              applicable for the affected Network Elements.

                    1.3.2     U S WEST agrees that in no event shall it
                              intentionally allow any Network Component provided
                              by U S WEST to Pac-West under this Agreement to
                              perform below the standards or deviations
                              therefrom reflected in Section 1. 3. 1, except
                              where requested by Pac-West. U S WEST shall
                              minimize any degradation to its equipment relative
                              to currently applicable service, where reasonable
                              in view of industry adopted performance standards
                              and technological developments. Written notice
                              (the "Change Notice") of any planned changes in
                              standards for any Network Component which could
                              impact that Network Component will be

                                       12
<PAGE>

                           provided at least ninety (90) days (or at the
                           make/buy point) prior to the planned implementation.
                           If Pac-West notifies U S WEST of how the proposed
                           change may adversely impact Pac-West or its Customers
                           within fourteen (14) calendar days after receipt of U
                           S WEST's Change Notice, U S WEST and Pac-West will
                           schedule joint discussions to address and attempt to
                           resolve the matter, including without limitation
                           consideration of proposed alternatives. In addition,
                           if U S WEST learns 'that any Network Component
                           purchased by Pac-West under this Agreement has been
                           permitted (even if not intentionally) to fall
                           materially below the level or specification in effect
                           as of the Effective Date of this Agreement, U S WEST
                           shall inform Pac-West immediately.

                  1.3.3    The Parties recognize that providing a number of the'
                           services specified in this Agreement depends upon the
                           "technical feasibility" of providing that service, as
                           that term is defined under the Act and/or by FCC or
                           Commission rules and decisions. If the Parties cannot
                           agree on whether providing a service is technically
                           feasible, the matter, including cost and expenses (if
                           any), shall be resolved through good faith
                           negotiation or the dispute resolution process
                           outlined in this Agreement

2.       Most Favored Nation Terms and Treatment

         2.1      Until such time as there is a final court determination
                  interpreting Section 252(i) of the Act, U S WEST shall make
                  available to Pac-West the terms and conditions of any other
                  agreement for Interconnection, unbundled Network Elements and
                  resale services approved by the Commission under Section 252
                  of the Act, in that agreement's entirety. After there is a
                  final court determination interpreting Section 252(i) of the
                  Act, the Parties agree to revise this Section 2.1 to reflect
                  such interpretation.

3.       Payment

         3.1      In consideration of the services provided by U S WEST under
                  this Agreement, Pac-West shall pay the charges set forth in
                  Attachment I to this Agreement. The billing procedures for
                  charges incurred by Pac-West hereunder are set forth in
                  Attachment 5 to this Agreement.

         3.2      Amounts payable under this Agreement, unless reasonably
                  disputed, are due and payable within thirty (30) days after
                  the date of U S WEST's invoice or within twenty (20) days
                  after receipt of the invoice, whichever is later. If the
                  payment due date is not a Business Day, the payment shall be
                  made the next Business Day.

         3.3      A late payment charge of 1.5% applies to all billed balances,
                  not reasonably disputed, which are not paid within the
                  applicable time period set forth in Section 3.2 above. To the
                  extent Pac-West pays the billed balance an time, but the
                  amount of the billed balance is reasonably disputed by
                  Pac-West, and, it is later determined that a refund is due
                  Pac-West, interest shall be payable on the refunded amount in
                  the amount of 1.5% per month. To the extent Pac-West pays the
                  billed balance on time, but the amount of the billed balance
                  is reasonably disputed by Pac-West, and, it is later
                  determined that no refund is due Pac-West, no interest shall
                  be payable an the disputed amount.

         3.4      Late payment charges shall not be used as a "credit' to a
                  deposit, if any, without the express approval of U S WEST.

         3.5      Unless specified otherwise in this Agreement, U S WEST shall
                  bill all amounts due from Pac-West for each resold service in
                  accordance with the terms and conditions as specified in the
                  U S WEST tariff.

                                       13
<PAGE>

4.       Taxes

         4.1      Any federal, state or local excise, sales, or use taxes
                  (excluding any taxes levied on income) resulting from the
                  performance of this Agreement shall be borne by the Party upon
                  which the obligation for payment is imposed under applicable
                  law, even if the obligation to collect and remit such taxes is
                  placed upon the other Party. Any such taxes shall be shown as
                  separate items on applicable billing documents between the
                  Parties. The Party so obligated to pay any such taxes may
                  contest the same in good faith, at its own expense. and shall
                  be entitled to the benefit of any refund or recovery, provided
                  that such Party shall not permit any lien to exist on any
                  asset of the other Party by reason of the contest. The Party
                  obligated to collect and remit taxes shall cooperate fully in
                  any such contest by the other Party by providing records,
                  testimony and such additional information or assistance as may
                  reasonably be necessary to pursue the contest. To the extent a
                  sale is claimed to be for resale tax exemption, the purchasing
                  Party shall furnish the providing Party a proper resale tax
                  exemption certificate as authorized or required by statute or
                  regulation by the jurisdiction providing said resale tax
                  exemption. Failure to timely provide said resale tax exemption
                  certificate will result in no exemption being available to the
                  purchasing Party during the applicable reporting period.

5.       Intellectual Property

         5.1      Obligations of Party Requesting Access. As a condition to the
                  access or use of patents, copyright, trade secrets, and other
                  intellectual property (including software) owned or controlled
                  by a third party to the extent necessary to implement this
                  Agreement or specifically required by the then applicable
                  federal and state rules and regulations relating to
                  Interconnection and access to telecommunications facilities
                  and services ("Third Party Intellectual Property"), the Party
                  providing access may require the other, upon written notice
                  from time to time, to obtain a license or permission for such
                  access or use of Third Party Intellectual Property, make all
                  payment, if any, in connection with obtaining such license,
                  and provide evidence of such license.

         5.2      Obligations of Party Providing Access. The Party providing
                  access shall provide a list of all known and necessary Third
                  Party Intellectual Property applicable to the other Party, and
                  take all necessary and appropriate steps to facilitate the
                  negotiation of any mandatory licenses. The treatment of third
                  party licenses shall be in accordance with FCC rules and
                  regulations and/or judicial determinations.

         5.3      Any intellectual property jointly developed in the course of
                  performing this Agreement shall belong to both Parties who
                  shall have the right to grant non-exclusive licenses to third
                  parties except as otherwise designated in writing by one Party
                  to another. Any intellectual property which originates from or
                  is developed by a Party shall remain in the exclusive
                  ownership of that Party. Except for a limited license to use
                  patents or copyrights to the extent necessary for the Parties
                  to use any facilities or equipment (including software) or to
                  receive any service solely as provided under this Agreement,
                  no license in patent, copyright, trademark or trade secret, or
                  other proprietary or intellectual property presently or
                  hereafter owned, controlled or licensable by a Party, is
                  granted to the other Party or shall be implied or arise by
                  estoppel.

6.       Severability

         6.1      In the event that any one or more of the provisions contained
                  herein shall for any reason be held to be unenforceable or
                  invalid in any respect under law or regulation, 'the Parties
                  will

                                       14
<PAGE>

                  negotiate in good faith for replacement language. If any part
                  of this Agreement is held to be invalid or unenforceable for
                  any reason, such invalidity or u n enforceability Will affect
                  only the portion of this Agreement which is invalid or
                  unenforceable. In all other respects this Agreement will stand
                  as if such invalid or unenforceable provision had not been a
                  part hereof, and the remainder of this Agreement shall remain
                  in full force and effect.

7.       Responsibility for Environmental Contamination

         7.1      Pac-West shall in no event be liable to U S WEST for any costs
                  whatsoever resulting from the presence or release of any
                  environmental hazard Pac-West did not introduce to the
                  affected work location. U S WEST shall. at Pac-West's request,
                  indemnify, defend, and hold harmless Pac-West, and each of its
                  officers, directors and employees from and against any losses,
                  damages, claims, demands, suits, liabilities, fines, penalties
                  and expenses (including reasonable attorneys' fees) arising
                  out of or resulting from (a) any environmental hazard U S
                  WEST, its contractors or agents introduce to the work
                  location, or (b) the presence or release of any environmental
                  hazard for which U S WEST is responsible under applicable law.

         7.2      U S WEST shall in no event be liable to Pac-West for any costs
                  whatsoever resulting from the presence or release of any
                  environmental hazard U S WEST did not introduce to the
                  affected work location. Pac-West shall, at U S WEST's request,
                  indemnify, defend, and hold harmless U S WEST, and each of its
                  officers, directors and employees from and against any losses,
                  damages, claims, demands, suits, liabilities, fines, penalties
                  and expenses (including reasonable attorneys' fees) arising
                  out of or resulting from (a) any environmental hazard
                  Pac-West, its contractors or agents introduce to the work
                  location, or (b) the presence of release of any environmental
                  hazard for which Pac-West is responsible under applicable law.

         7.3      In the event any suspect materials within U S WEST-owned,
                  operated or leased facilities are identified to be
                  asbestos-containing, Pac-West will ensure that to the extent
                  any activities which it undertakes in the facility disturb
                  such suspect materials, such Pac-West activities will be in
                  accordance with applicable local, state and federal
                  environmental and health and safety statutes and regulations.
                  Except for abatement activities undertaken by Pac-West or
                  equipment placement activities that result in the generation
                  of asbestos containing material, Pac-West shall not have any
                  responsibility for managing, nor be the owner of, not have any
                  liability for, or in connection with, any asbestos containing
                  material. U S WEST agrees to immediately notify Pac-West if U
                  S WEST undertakes any asbestos control or asbestos abatement
                  activities that potentially could affect Pac-West equipment or
                  operations, including, but not limited to, contamination of
                  equipment.

         7.4      Each Party will be solely responsible, at its own expense, for
                  proper handling, storing, transport and disposal of all (a)
                  substances or materials that it or its contractors or agents
                  bring to, create or assume control over at work locations, or
                  (b) waste resulting therefrom or otherwise generated in
                  connection with its or its contractors' or agents' activities
                  at the work locations.

8.       Branding

         8.1      Where operator, call completion, or director assistance
                  service is part of the service or service package U S WEST
                  offers for resale, they should be provided upon request in an
                  unbranded status at no additional cost, unless U S WEST proves
                  to the Commission that it lacks the capability to comply

                                       15
<PAGE>

                  with the unbranding request. If U S WEST meets its burden of
                  proof, U S WEST is relieved of its duty to comply with the
                  request for unbranding(4)

         8.2      When Pac-West requests branding as its own service or
                  unbranding of a service other than operator, call completion,
                  or directory assistance service, Pac-West shall pay for the
                  cost of that branding or unbranding, unless U S WEST proves to
                  the Commission that it lacks the capability to comply with the
                  unbranding request If U S WEST meets its burden of proof, U S
                  WEST is relieved of its duty to comply with the request for
                  branding or unbranding.(5)

         8.3      For those services during the provision of which U S WEST
                  interacts with Pac-West Customers, and which services are the
                  subject matter of this Agreement, U S WEST shall, at
                  Pac-West's sole discretion, brand any and all -such services
                  at all points of subscriber contact exclusively as Pac-West
                  service, or otherwise as Pac-West may specify, or such service
                  shall be provided with no brand as Pac-West shall determine,
                  except as provided below with respect to uniforms and
                  vehicles. U S WEST may not unreasonably interfere with
                  branding by Pac-West.(6)

         8.4      Branding includes front-end branding, back-end branding, and
                  unbranding to be determined by Pac-West Pac-West shall have
                  the option of providing its own branding materials.(7)

         8.5      Pac-West shall provide the exclusive interface to Pac-West
                  subscribers except as Pac-West shall otherwise specify. U S
                  WEST shall inform Pac-West Customers that resold repair and
                  maintenance service is being provided on behalf of
                  Pac-West.(8)

         8.6      Except as otherwise specifically provided herein, all forms,
                  business cards or other business materials furnished by U S
                  WEST to Pac-West subscribers shall be provided by Pac-West
                  unless otherwise agreed by Pac-West in its sole discretion, in
                  which case, any such subscriber materials shall be subject to
                  Pac-West's prior review and approval.(9)

         8.7      U S WEST is not required to remove the U S WEST brand from
                  services offered by U S WEST to its Customers except as
                  otherwise required by this Agreement.(10)

         8.8      U S WEST will not be required to rebrand uniforms and
                  vehicles.(11)

----------

4  Per Recommendations at paces 5-6, Issues 29-32.
5  Per Recommendations at page 6, Issues 29-32.
6  Per Recommendations at page 6, Issues 29-32.
7  Per Recommendations at page 6, Issues 29-32.
8  Per Recommendations at page 6, Issues 29-32.
9  Per Recommendations at page 6, Issues 29-32.
10 Per Recommendations at page 6, Issues 29-32.
11 Per Order at page 21, Issue 30.

                                       16
<PAGE>

         8.9      U S WEST shall inform Pac-West customers that resold repair
                  and maintenance is being provided on behalf of Pac-West
                  Pac-West shall prepare the printed material that provides
                  information about Pac-West's service that U S WEST employees
                  leave with Pac-West customers in association with repair and
                  maintenance calls.(12)

         8.10     U S WEST shall provide, for Pac-West's review, the methods and
                  procedures, training and approaches to be used by U S WEST to
                  assure that LI S WEST meets Pac-West's branding requirements.

         8.11     This Section 8 shall confer on U S WEST no rights to the
                  service marks, trademarks and trade names owned by or used in
                  connection with services by Pac-West or its Affiliates, except
                  as expressly permitted by Pac-West.

         8.12     At the request of Pac-West and where technically feasible, U S
                  WEST will rebrand operator services and directory assistance
                  and announcements in Pac-West's name.(13)

         8.13     Until such time as the Commission determines final pricing
                  pursuant to its cost docket, Pac-West shall pay the actual
                  costs, if any, of branding or unbranding in accordance with
                  the Act or Commission orders.(14)

9.       Independent Contractor Status

         9.1      Nothing contained herein shall constitute the Parties as joint
                  venturers, partners, employees or agents of one another, and
                  neither Party shall have the right or power to bind or
                  obligate the other.

         9.2      Each Party is an independent contractor, and has and hereby
                  retains the right to exercise full control of and supervision
                  over its own performance of its obligations under this
                  Agreement and retains full control over the employment,
                  direction, compensation and discharge of all employees
                  assisting in the performance of such obligations. Each Party
                  will be solely responsible for all matters relating to payment
                  of such employees, including compliance with social security
                  taxes, withholding taxes, and other payroll taxes with respect
                  to their respective employees, as well as any taxes,
                  contributions or other obligations imposed by applicable state
                  unemployment or workers' compensation acts and all other
                  regulations governing such matters. Each Party has sole
                  authority and responsibility to hire, fire and otherwise
                  control its employees.

         9.3      Subject to the limitations on liability and except as
                  otherwise provided in this Agreement, each Party shall be
                  responsible for (a) its own acts and performance of all
                  obligations imposed by applicable law in connection with its
                  activities, legal status and property, real or personal, and
                  (b) the acts of its own Affiliates, employees, agents and
                  contractors during the performance of that Party's obligations
                  hereunder. Except for provisions herein expressly authorizing
                  one Party to act for the other, nothing in this Agreement
                  shall constitute a Party as a legal representative or agent of
                  the other Party, nor shall a Party have the right or authority
                  to assume, create or incur any liability or any obligation of
                  any kind, express or

----------

12   Per Order at page 21, Issue 30.
13   Per Order at page 21, Issue 30.
14   Per Recommendations at page 7, Issues 29-32.

                                       17
<PAGE>

                  implied, against or in the name or on behalf of the other
                  Party unless otherwise expressly permitted by such other
                  Party. Except as otherwise expressly provided in this
                  Agreement, neither Party shall undertake to perform any
                  obligation of the other Party, whether regulatory or
                  contractual, or to assume any responsibility for the
                  management of the other Parry s business.

10.      Referenced Documents

         10.1     All references to Sections, Exhibits, and Schedules shall be
                  deemed to be references to Sections of, and Exhibits and
                  Schedules to, this Agreement unless the context shall
                  otherwise require. Whenever any provision of this Agreement
                  refers to a technical reference, technical publication,
                  Pac-West practice, U S WEST practice, any publication of
                  telecommunications industry administrative or technical
                  standards, or any other document specifically incorporated
                  into this Agreement, it will be deemed to be a reference to
                  the most recent version or edition (including any amendments,
                  supplements, addenda, or successors) or such document that is
                  in effect, and will include the most recent version or edition
                  (including any amendments, supplements, addenda, or
                  successors) of each document incorporated by reference in such
                  a technical reference, technical publication, Pac-West
                  practice, U S WEST practice, or publication of industry
                  standards, unless Pac-West elects otherwise.

11.      Publicity and Advertising

         11.1     Neither Party shall publish or use any advertising, sales
                  promotions or other publicity materials that use the other
                  Party's logo, trademarks or service marks without the prior
                  written approval of the other Party.

12.      Executed in Counterparts

         12.1     This Agreement may be executed in any number of counterparts,
                  each of which shall be deemed an original, but such
                  counterparts shall together constitute one and the same
                  instrument.

13.      Headings Not Controlling

         13.1     The headings and numbering of Sections, Parts, Appendices and
                  Attachments in this Agreement are for convenience only and
                  shall not be construed to define or limit any of the terms
                  herein or affect the meaning or interpretation of this
                  Agreement.

14.      Joint Work Product

         14.1     This Agreement is the joint work product of the Parties and
                  has been negotiated by the Parties and their respective
                  counsel and shall be fairly interpreted in accordance with its
                  terms and, in the event of any ambiguities, no inferences
                  shall be drawn against either Party.

15.      Survival

         15.1     Any liabilities or obligations of a Party for acts or
                  omissions prior to the cancellation or termination of this
                  Agreement; any obligation of a Party under the provisions
                  regarding

                                       18
<PAGE>

                  indemnification, confidential information, limitation of
                  liability, and any other provisions of this Agreement which,
                  by their terms, are contemplated to survive, or to be
                  performed after, termination of this Agreement, shall survive
                  cancellation or termination thereof.

16.      Effective Date

         16.1     This Agreement shall become effective upon Commission approval
                  pursuant to Sections 251 and 252 of the Act.(15)

17.      Amendment of Agreement

         17.1     Except as otherwise provided in this Agreement, no amendment
                  or waiver of any provision of this Agreement, and no consent
                  to any default under this Agreement, shall be effective
                  -unless the same is in writing and signed by an officer of the
                  Party against whom such amendment, waiver or consent is
                  claimed. If either Party desires an amendment to this
                  Agreement during the term of this Agreement, it shall provide
                  written notice thereof to the other Party describing the
                  nature of the requested amendment. If the Parties are unable
                  to agree on the terms of the amendment within thirty (30) days
                  after the initial request therefor, the Party requesting the
                  amendment may invoke the dispute resolution process under
                  Section 27 of this Part A of this Agreement to determine the
                  terms of any amendment to this Agreement All amendments to
                  this Agreement will be submitted to the Commission.

18.      Indemnification

         18.1     Notwithstanding any limitations in remedies contained in this
                  Agreement, each Party (the "Indemnifying Party") will
                  indemnify and hold harmless the other Party ("Indemnified
                  Party") from and against any loss, cost, claim, liability,
                  damage and expense, including reasonable attorney's fees, to
                  third parties, relating to or arising out of the libel,
                  slander, invasion of privacy, misappropriation of a name or
                  likeness, actual or alleged infringement or other violation or
                  breach of any patent, copyright, trademark, service mark,
                  trade name, trade dress, trade secret or any other
                  intellectual property presently existing or later created.
                  negligence or willful misconduct by the Indemnifying Party,
                  its employees, agents, or contractors in the performance of
                  this Agreement or the failure of the Indemnifying Party to
                  perform its obligations under this Agreement. In addition, the
                  Indemnifying Party will, to the extent of its obligations to
                  indemnify hereunder, defend any action or suit brought by a
                  third party against the Indemnified Party.

         18.2     The Indemnified Party will notify the Indemnifying Party
                  promptly in writing of any written claim, lawsuit, or demand
                  by third parties for which the Indemnified Party alleges that
                  the Indemnifying Party is responsible under this Section 18
                  and tender the defense of such claim, lawsuit or demand to the
                  Indemnifying Party. Failure to so notify the Indemnifying
                  Party shall not relieve the Indemnifying Party of any
                  liability that the Indemnifying Party might have, except to
                  the extent that such failure prejudices the Indemnifying
                  Party's ability to defend such claim.

         18.3     The Indemnified Party also will cooperate in every reasonable
                  manner with the defense or settlement of such claim, demand,
                  or lawsuit. The Indemnifying Party shall keep the Indemnified
                  Party reasonably and timely apprised of the status of the
                  claim, demand or lawsuit The Indemnified Party shall have the
                  right to retain its own counsel, including in

----------

15  Per Approval at page 14, paragraph 2. (This footnote is not applicable to
    Pac-West)

                                       19
<PAGE>

                  house counsel, at its expense, and participate in but not
                  direct the defense; provided however, that if there are
                  reasonable defenses in addition to those asserted by the
                  Indemnifying Party, the Indemnified Party and its counsel may
                  raise and direct such defenses, which shall be at the expense
                  of the Indemnifying Party.

         18.4     The Indemnifying Party will not be liable under this Section
                  18 for settlements or compromises by the Indemnified Party of
                  any claim, demand or lawsuit unless 'the Indemnifying Party
                  has approved the settlement or compromise in advance or unless
                  the defense of the claim, demand or lawsuit has been tendered
                  to the Indemnifying Party in writing and the Indemnifying
                  Party has failed to timely undertake the defense. In no event
                  shall the Indemnifying Party settle or consent to any judgment
                  pertaining to any such action without the prior written
                  consent of the Indemnified Party.

19.      Limitation of Liability(16)

         19.1     Except as otherwise provided in the indemnity section, no
                  Party shall be liable to the other Party for any loss, defect
                  or equipment failure caused by the conduct of the other Party,
                  the other Party's agents, servants, contractors or others
                  acting in aid or concert with the other Party.

         19.2     Except for indemnity obligations, each Party's liability to
                  the other Party for any loss relating to or arising out of any
                  negligent act or omission in its performance of this
                  Agreement, whether in contract or in tort, shall be limited to
                  the total amount that is or would have been charged to the
                  other Party by such negligent or breaching Party for the
                  service(s) or function(s) not performed or improperly
                  performed.

         19.3     In no event shall either Party have any liability whatsoever
                  to the other Party for any indirect, special, consequential,
                  incidental or punitive damages, including but not limited to
                  loss of anticipated profits or revenue or other economic loss
                  in connection with or arising from anything said, omitted or
                  done hereunder (collectively, "Consequential Damages"), even
                  if the other Party has been advised of the possibility of such
                  damages; provided, that the foregoing shall not limit a
                  Party's obligation to indemnify, defend and hold the other
                  Party harmless against any amounts payable to a third party,
                  including any losses, costs, fines, penalties, criminal or
                  civil judgments or settlements, expenses (including attorneys'
                  fees) and Consequential Damages of such third party. Nothing
                  contained in this Section 19 shall limit either Party's
                  liability to the other for (i) willful or intentional
                  misconduct (including gross negligence); (ii) bodily injury,
                  death or damage to tangible real or tangible personal property
                  proximately caused by such party's negligent act or omission
                  or that of their respective agents, subcontractors or
                  employees nor shall anything contained in this section limit
                  the Parties' indemnification obligations, as specified above.

----------

(16) Per Recommendations at page 8, Issue 40. Modified per Approval at page 13,
     paragraph C.

                                       20
<PAGE>

20.      Term of Agreement

         20.1     This Agreement shall become effective upon Commission approval
                  and shall terminate on July 24, 2000 and thereafter shall
                  continue in force and effect unless and until a new agreement,
                  addressing all of the terms of this Agreement, becomes
                  effective between the Parties. The Parties shall commence
                  negotiations on a new agreement no later than one (1) year
                  prior to the expiration of the term of this Agreement. Either
                  Party may request resolution of open issues in accordance with
                  the provisions of Section 27 of this Part A of this Agreement,
                  Dispute Resolution, beginning nine (9) months prior to the
                  expiration of this Agreement. Any disputes regarding the terms
                  and conditions of the new interconnection agreement shall be
                  resolved in accordance with Section 27 of this Agreement and
                  the resulting agreement shall be submitted to the Commission.
                  This Agreement shall remain in effect until a new
                  interconnection agreement approved by the Commission has
                  become effective.

21.      Governing Law

         21.1     This Agreement shall be governed by and construed in
                  accordance with the Act and FCC or Commission rules and
                  regulations, except insofar as state law may control any
                  aspect of this Agreement, in which case the domestic laws of
                  the State of Washington, without regard to its conflicts of
                  laws principles, shall govern.

22.      Cancellation Charges

         22.1     Except as provided pursuant to a Bona Fide Request, or as
                  otherwise provided in any applicable tariff or contract
                  referenced herein, no cancellation charges shall apply.

23.      Regulatory Approvals

         23.1     This Agreement, and any amendment or modification hereof, will
                  be submitted to the Commission for approval in accordance with
                  Section 252 of the Act. In the event any governmental
                  authority or agency rejects any provision hereof, the Parties
                  shall negotiate promptly and in good faith such revisions as
                  may reasonably be required to achieve approval.

         23.2     U S WEST shall provide Pac-West a summary describing the
                  proposed change(s) to each Telecommunications Service which is
                  available pursuant to this Agreement. U S WEST shall also
                  provide Pac-West a summary describing the proposed change(s)
                  of each intrastate and interstate tariff which provides for an
                  Interconnection, unbundled Network Element or Ancillary
                  Service that is available pursuant to this Agreement. Such
                  summaries shall be available through an Internet Web page to
                  be posted on the Same day the proposed change is filed with
                  the Commission or the FCC or at least thirty (30) days in
                  advance of its effective date, whichever is earlier.

         23.3     In the event any governmental authority or agency orders U S
                  WEST to provide any service covered by this Agreement in
                  accordance with any terms or conditions that individually
                  differ from one or more corresponding terms or conditions of
                  this Agreement, Pac-West may elect to amend this Agreement to
                  reflect any such differing terms or conditions contained in
                  such decision or order, with effect from the date Pac-West
                  makes such election. The other services covered by this
                  Agreement and not covered by such decision or order shall
                  remain unaffected and shall remain in full force and effect.

                                       21
<PAGE>

         23.4     The Parties intend that any additional services requested by
                  either Party relating to the subject matter of this Agreement
                  will be incorporated into this Agreement by amendment.

24.      Compliance

         24.1     Each Party shall comply with all applicable federal, state,
                  and local laws, rules and regulations applicable to its
                  performance under this Agreement.

         24.2     Each Party represents and warrants that any equipment,
                  facilities or services provided to the other Party under this
                  Agreement comply with the Communications Law Enforcement Act
                  of 1994 ("CALEA"). Each Party (the "Indemnifying Party") shall
                  indemnify and hold the other Party (the "Indemnified Party")
                  harmless from any and all penalties imposed upon the
                  Indemnified Party for such noncompliance and shall, at the
                  Indemnifying Party's sole cost and expense, modify or replace
                  any equipment facilities or services provided to the
                  Indemnified Party under this Agreement to ensure that such
                  equipment, facilities and services fully comply with CALEA.

         24.3     All terms, conditions and operations under this Agreement
                  shall be performed in accordance with all applicable laws,
                  regulations and judicial or regulatory decisions of all duly
                  constituted governmental authorities with appropriate
                  jurisdiction, and this Agreement shall be implemented
                  consistent with the FCC Interconnection Order and any
                  applicable Commission orders. Each Party shall be responsible
                  for obtaining and keeping in effect all FCC, Commission,
                  franchise authority and other regulatory approvals that May be
                  required in connection with the performance of its obligations
                  under this Agreement. In the event the Act or FCC or
                  Commission rules and regulations applicable to this Agreement
                  are held invalid, this Agreement shall survive, and the
                  Parties shall promptly renegotiate any provisions of this
                  Agreement which, in the absence of such invalidated Act, rule
                  or regulation, are insufficiently clear to be effectuated,
                  violate, or are either required or not required by the new
                  rule or regulation. During these negotiations, each Party will
                  continue to provide the same services and elements to each
                  other as are provided for under this Agreement Provided,
                  however, that either Party shall give ten (10) Business Days'
                  notice if it intends to cease any development of any new
                  element or service that is not at that time being provided
                  pursuant to this Agreement In the event the Parties cannot
                  agree on an amendment within thirty (30) days from the date
                  any such rules, regulations or orders become effective, then
                  the Parties shall resolve their dispute, including liability
                  for noncompliance with the new clause or the cost, if any, of
                  performing activities no longer required by the rule or
                  regulation during the renegotiation of the new clause under
                  the applicable procedures set forth in Section 27 herein.

25.      Force Majeure

         25.1     Neither Party shall be liable for any delay or failure in
                  performance of any part of this Agreement from any cause
                  beyond its control and without its fault or negligence
                  including, without limitation, acts of nature, acts of civil
                  or military authority, embargoes, epidemics, terrorist acts,
                  dots, insurrections, fires, explosions, earthquakes, nuclear
                  accidents, floods, work stoppages, equipment failure, power
                  blackouts, volcanic action, other major environmental
                  disturbances, unusually severe weather conditions, inability
                  to secure products or services of other persons or
                  transportation facilities or acts or omissions of
                  transportation carriers. No delay or other failure to perform
                  shall be excused pursuant to this Section 25 unless such delay
                  or failure and the consequences thereof are beyond the control
                  and without the fault or negligence of the Party claiming
                  excusable delay or other failure to perform. in the event of
                  any such excused delay in the performance of a Party's

                                       22
<PAGE>

                  obligation(s) under this Agreement, the due date for the
                  performance of the original obligation(s) shall be extended by
                  a term equal to the time lost by reason of the delay. In the
                  event of such delay, the delaying Party shall perform its
                  obligations at a performance level no less than that which it
                  uses for its own operations. In the event of a labor dispute
                  or strike. the Parties agree to provide service to each other
                  at a level equivalent to the level they provide themselves. In
                  the event of a labor dispute or strike or work stoppage that
                  continues for a period in excess of forty-eight (48) hours,
                  Pac-West may obtain replacement services for those services
                  affected by such labor dispute or strike or work stoppage, in
                  which event any liability of Pac-West for the affected
                  services shall be suspended for the period of the work
                  stoppage or labor dispute or strike. In the event of such
                  performance delay or failure by U S WEST, U S WEST agrees to
                  resume performance in a nondiscriminatory manner and not favor
                  its own provision of Telecommunications Services above that of
                  Pac-West.

26.      Escalation Procedures

         26.1     Pac-West and U S WEST agree to exchange escalation lists which
                  reflect contact personnel including vice president-level
                  officers. These lists shall include name, department, title,
                  phone number, and fax number for each person. Pac-West and U S
                  WEST agree to exchange up-to-date lists as reasonably
                  necessary.

27.      Dispute Resolution

         27.1     If any claim, controversy or dispute between the Parties,
                  their agents, employees, officers, directors or affiliated
                  agents ("Dispute") cannot be settled through negotiation, it
                  may be resolved by arbitration conducted by a single
                  arbitrator engaged in the practice of law, under the then
                  current rules of the American Arbitration Association ("AAA").
                  The Federal Arbitration Act, 9 U.S.C. Secs. 1-16, not state
                  law, shall govern the arbitrability of all Disputes. The
                  arbitrator shall not have authority to award punitive damages.
                  All expedited procedures prescribed by the AAA rules shall
                  apply. The arbitrator's award shall be final and binding and
                  may be entered in any court having jurisdiction thereof and
                  shall be noticed to the Commission. The arbitrator shall
                  determine which Party or Parties will bear the costs of
                  arbitration, including apportionment, if appropriate. The
                  arbitration shall occur in Seattle, Washington, unless
                  otherwise agreed to by the Parties, and the governing law
                  shall be in accordance with Section 21.1 above.

         27.2     In the event Pac-West and U S WEST are unable to agree on
                  certain issues during the term of this Agreement, the Parties
                  may identify such issues for arbitration before the
                  Commission. Only those points identified by the Parties for
                  arbitration will be submitted.

         27.3     If a Dispute is submitted to arbitration pursuant to Section
                  27.1 above, the procedures described in this Section 27.3
                  shall apply, notwithstanding the then current rules of the
                  AAA. Discovery shall be controlled by the arbitrator and shall
                  be permitted to the extent set forth below. Each Party may
                  submit in writing to a Party, and that Party shall so respond,
                  to an agreed amount of the following: interrogatories, demands
                  to produce documents, and requests for admission. Not less
                  than ten (10) days prior to the arbitration hearing, the
                  Parties shall exchange witness and exhibit lists. Deposition
                  discovery shall be controlled by the arbitrator. Additional
                  discovery may be permitted upon mutual agreement of the
                  Parties or the determination of the arbitrator. The
                  arbitration hearing shall be commenced within thirty (30) days
                  after a demand for arbitration by either Party and shall be
                  held in Seattle, Washington, unless otherwise agreed to by the
                  Parties. The arbitrator shall control the scheduling so as to
                  process the matter expeditiously. The Parties may submit
                  written briefs. The arbitrator shall rule on

                                       23
<PAGE>

                  the dispute by issuing a written opinion within seven (7) days
                  after the close of the hearings. The times specified in this
                  section may be extended upon mutual agreement of the Parties
                  or by the arbitrator upon a showing of good cause. The
                  decision of the arbitrator shall be final and binding upon the
                  Parties and judgment upon the award rendered by the
                  arbitrators may be entered in a court having jurisdiction. The
                  decision shall also be submitted to the Commission.

28.      Nondisclosure

         28.1     All information, including, but not limited to,
                  specifications, microfilm, photocopies, magnetic disks,
                  magnetic tapes, drawings, sketches, models, samples, tools,
                  technical information, data, employee records, maps, financial
                  reports, and market data (a) furnished by one Party to the
                  other Party dealing with Customer specific, facility specific,
                  or usage specific information, other than Customer information
                  communicated for the purpose of publication of directory
                  database inclusion, or (b) in written, graphic,
                  electromagnetic, or other tangible form and marked at the time
                  of delivery as "Confidential" or "Proprietary", or (c)
                  declared orally or in writing to the Recipient at the time of
                  delivery, or by written notice given to the Recipient within
                  ten (10) days after delivery, to be "Confidential" or
                  "Proprietary" (collectively referred to as "Proprietary
                  Information"), shall remain the property of the Discloser. A
                  Party who receives Proprietary Information via an oral
                  communication may request written confirmation that the
                  material is Proprietary Information. A Party who delivers
                  Proprietary Information via an oral communication may request
                  written confirmation that the Party receiving the information
                  understands that the material is Proprietary Information.

         28.2     Upon request by the Discloser, the Recipient shall return all
                  tangible copies of Proprietary Information, whether written,
                  graphic or otherwise, except that the Recipients legal counsel
                  may retain one (1) copy for archival purposes.

         28.3     Each Party shall keep all of the other Party's Proprietary
                  Information confidential and shall use the other Party's
                  Proprietary Information only in connection with this
                  Agreement. Neither Party shall use the other Party's
                  Proprietary information for any other purpose except upon such
                  terms and conditions as May be agreed upon between the Parties
                  in writing.

         28.4     Unless otherwise agreed, the obligations of confidentiality
                  and non-use set forth in this Agreement do not apply to
                  Proprietary Information that:

                  28.4.1   was, at the time of receipt, already known to the
                           Recipient free of any obligation to keep it
                           confidential evidenced by written records prepared
                           prior to delivery by the Discloser

                  28.4.2   is or becomes publicly known through no wrongful act
                           of the Recipient;

                  28.4.3   is rightfully received from a third person having no
                           direct or indirect secrecy or confidentiality
                           obligation to the Discloser with respect to such
                           information;

                  28.4.4   is independently developed by an employee, agent, or
                           contractor of the Recipient which individual is not
                           involved in any manner with the provision of services
                           pursuant to this Agreement and does not have any
                           direct or indirect access to the Proprietary
                           Information;

                  28.4.5   is approved for release by written authorization of
                           the Discloser, or

                                       24
<PAGE>

                  28.4.6   is required by law, a court, or governmental agency,
                           provided that the Discloser has been notified of the
                           requirement promptly after the Recipient becomes
                           aware of the requirement, subject to the right of the
                           Discloser to seek a protective order as provided in
                           Section 28.5 below.

         28.5     For a period of ten (10) years from receipt of Proprietary
                  Information, the Recipient shall (a) use it only for the
                  purpose of performing under this Agreement, (b) hold it in
                  confidence and disclose it only to employees, authorized
                  contractors and authorized agents who have a need to know it
                  in order to perform under this Agreement, and (c) safeguard it
                  from unauthorized use or disclosure using no less than the
                  degree of care with which the Recipient safeguards its own
                  Proprietary Information. Any authorized contractor or agent to
                  whom Proprietary Information is provided must have executed a
                  written agreement comparable in scope to the terms of this
                  Section. Notwithstanding the foregoing, each Party shall
                  provide advance notice of three (3) Business Days to the other
                  before providing Proprietary Information to a governmental
                  authority and the Parties shall cooperate with -each other in
                  attempting to obtain a suitable protective order. The
                  Recipient agrees to comply with any protective order that
                  covers the Proprietary Information to be disclosed.

         28.6     Each Party agrees that the Discloser would be irreparably
                  injured by a breach of this Section 28 by the Recipient or its
                  representatives and that the Discloser shall be entitled to
                  seek equitable relief, including injunctive relief and
                  specific performance, in the event of any breach of this
                  Section 28. Such remedies shall not be exclusive but shall be
                  in addition to all other remedies available at law or in
                  equity.

         28.7     Customer Proprietary Network Information ("CPNI") related to
                  either Party's subscribers obtained by virtue of Local
                  Interconnection or any other service provided under this
                  Agreement shall be the Discloser's Proprietary Information and
                  may not be used by the Recipient for any purpose except
                  performance of its obligations under this Agreement, and in
                  connection with such performance, shall be disclosed only to
                  employees, authorized contractors and authorized agents with a
                  need to know, unless the subscriber expressly directs the
                  Discloser to disclose such information to the Recipient
                  pursuant to the requirements of Section 222(c)(2) of the Act
                  If the Recipient seeks and obtains written approval to use or
                  disclose such CPNI from the Discloser, such approval shall be
                  obtained only in compliance with Section 222(c)(2) and, in the
                  event such authorization is obtained, the Recipient may use or
                  disclose only such information as the Discloser provides
                  pursuant to such authorization and may not use information
                  that the Recipient has otherwise obtained, directly or
                  indirectly, in connection with its performance under this
                  Agreement(17)

         28.8     Except as otherwise expressly provided in this Section 28,
                  nothing herein shall be construed as limiting the rights of
                  either Party with respect to its subscriber information under
                  any applicable law, including, without limitation, Section 222
                  of the Act.

         28.9     Effective Date Of This Section. Notwithstanding any other
                  provision of this Agreement, the Proprietary Information
                  provisions of this Agreement shall apply to all Proprietary
                  Information furnished by either Party with a claim of
                  confidentiality or proprietary nature at any time.

----------

(17) Per Order at pages 23-24, Issue 41.

                                       25
<PAGE>

29.      Notices

         29.1     Except as otherwise provided herein, all notices or other
                  communication hereunder shall be deemed to have been duly
                  given when made in writing and delivered in person or
                  deposited in the United States mail, certified mail, postage
                  prepaid, return receipt requested, or delivered by prepaid
                  overnight express mail, and addressed as follows:

                  To Pac-West: Pac-West Telecomm, Inc.
                               4210 Coronado Avenue
                               Stockton, CA 94204

                  To U S WEST: U S WEST
                               Director-interconnection Compliance
                               1801 California, Room 2410
                               Denver, Colorado 80202
                  Copy to:     USWC Law Dept, General Counsel
                               1801 California Street, Room 5100
                               Denver, Colorado 80202

         29.2     If personal delivery is selected to give notice, a receipt of
                  such delivery shall be obtained. The address to which notices
                  or communications may be given to either Party may be changed
                  by written notice given by such Party to the other pursuant to
                  this Section 29.

30.      Assignment

         30.1     Neither Party may assign, transfer (whether by operation of
                  law or otherwise) or delegate this Agreement (or any rights or
                  obligations hereunder) to a third party without the prior
                  written consent of the other Party, which consent shall not be
                  unreasonably withheld, provided that each Party may assign
                  this Agreement to an Affiliate or an entity under its common
                  control or an entity acquiring ail or substantially all of its
                  assets or equity by providing prior written notice to the
                  other Party of such assignment or transfer. Any attempted
                  assignment or transfer that is not permitted under the
                  provisions of this Section 30 is void ab initio. Without
                  limiting the generality of the foregoing, this Agreement shall
                  be binding upon and shall inure to the benefit of the Parties'
                  respective successors and assigns. No assignment or delegation
                  hereof shall relieve the assignor of its obligations under
                  this Agreement.

         30.2     If any obligation of U S WEST under this Agreement is
                  performed by a subcontractor or Affiliate, U S WEST shall
                  remain fully responsible for the performance of this Agreement
                  in accordance with its terms and U S WEST shall be solely
                  responsible for payments due to its subcontractors.

         30.3     If any obligation of Pac-West under this Agreement is
                  performed by a subcontractor or Affiliate, Pac-West shall
                  remain fully responsible for the performance of this Agreement
                  in accordance with its terms, and Pac-West shall be solely
                  responsible for payments due to its subcontractors.

                                       26
<PAGE>

31.      Warranties

         31.1     U S WEST shall conduct ail activities and interfaces which are
                  provided for under this Agreement with Pac-West Customers in a
                  carrier-neutral, nondiscriminatory manner.

         31.2     U S WEST warrants that it has provided, and during the term of
                  this Agreement it will continue to provide, to Pac-West true
                  and complete copies of all material agreements effect between
                  U S WEST and any third party (including Affiliates) providing
                  any services to Pac-West on behalf of or under contract to U S
                  WEST in connection with U S WEST's performance of this
                  Agreement, or from whom U S WEST has obtained licenses or o
                  rights used by U S WEST to perform its obligations under this
                  Agreement, provided, however, that U S WEST may provide such
                  agreements under appropriate protective

32.      Default

         32.1     In the event of a breach of any material provision of this
                  Agreement by either Party, the non-breaching Party shall give
                  the breaching Party and the Commission written notice thereof,
                  and:

                  32.1.1   if such material breach is for non-payment of amounts
                           due hereunder pursuant to this Agreement, the
                           breaching Party shall cure such breach within thirty
                           (30) calendar days of receiving such notice. The
                           non-breaching Party shall be entitled to pursue all
                           available legal and equitable remedies for such
                           breach. Amounts disputed in good faith and withheld
                           or set off shall not be deemed "amounts due
                           hereunder" for the purpose of this provision.

                  32.1.2   if such material breach is for any failure to perform
                           in accordance with this Agreement, which, in the sole
                           judgment of the non-breaching Party, adversely
                           affects the non-breaching Party's subscribers, the
                           non-breaching Party shall give notice of the breach
                           and the breaching Party shall cure such breach to the
                           nonbreaching Party's reasonable satisfaction within
                           ten (10) Business Days or within a period of time
                           equivalent to the applicable interval required by
                           this Agreement whichever is shorter. If the breaching
                           Party does not cure such breach within the applicable
                           time period, the non-breaching Party may, at its sole
                           option, terminate this Agreement, or any parts
                           hereof. The non-breaching Party shall be entitled to
                           pursue all available legal and equitable remedies for
                           such breach. Notice under this Subsection 32.1.2 may
                           be given electronically or by facsimile, provided
                           that a hard copy or original of such notice is sent
                           by overnight delivery service.

                  32.1.3   if such material breach is for any other failure to
                           perform in accordance with this Agreement, the
                           breaching Party shall cure such breach to the
                           non-breaching Party's reasonable satisfaction within
                           forty-five (45) calendar days, and, if it does not,
                           the non-breaching Party may, at its sole option,
                           terminate this Agreement, or any parts hereof. The
                           non-breaching Party shall be entitled to pursue all
                           available legal and equitable remedies for such
                           breach.

         32.2     Pac-West may terminate this Agreement in whole at any time
                  only for cause upon sixty (60) calendar days' prior written
                  notice. Pac-West's sole liability shall be payment of amounts
                  due for services provided or obligations assumed up to the
                  date of termination.

         32.3     In the event of any termination under this Section 32, U S
                  WEST and Pac-West agree to cooperate to provide for an
                  uninterrupted transition of services to Pac-West or another

                                       27
<PAGE>

                  vendor designated by Pac-West to the extent that U S WEST has
                  the ability to provide such cooperation.

         32.4     Notwithstanding any termination hereof, the Parties shall
                  continue to comply with their obligations under the Act.

33.      Remedies

         33.1     In the event U S WEST fails to switch a subscriber to Pac-West
                  service as provided in this Agreement, U S WEST shall
                  reimburse Pac-West in an amount equal to all fees paid by such
                  subscriber to U S WEST for such failed-to-be-transferred
                  services from the time of such failure to switch to the time
                  at which the subscriber switch is accomplished. This remedy
                  shall be in addition to all other remedies available to
                  Pac-West under this Agreement or otherwise available.

         33.2     All rights of termination, cancellation or other remedies
                  prescribed in this Agreement, or otherwise available, are
                  cumulative and are not intended to be exclusive of other
                  remedies to which the injured Party may be entitled at law or
                  equity in case of any breach or threatened breach by the other
                  Party of any provision of this Agreement. Use of one or more
                  remedies shall not bar use of any other remedy for the purpose
                  of enforcing the provisions of this Agreement.

34.      Waivers

         34.1     No waiver of any provisions of this Agreement and no consent
                  to any default under this Agreement shall be effective unless
                  the same shall be in writing and properly executed by or on
                  behalf of the Party against whom such waiver or consent is
                  claimed.

         34.2     No course of dealing or failure of either Party to strictly
                  enforce any term, right, or condition of this Agreement in any
                  instance shall be construed as a general waiver or
                  relinquishment of such term, right or condition.

         34.3     Waiver by either Party of any default or breach by the other
                  Party shall not be deemed a waiver of any other default or
                  breach.

         34.4     By entering into this Agreement, neither Party waives any
                  right granted to it pursuant to the Act.

35.      No Third Party Beneficiaries

         35.1     The provisions of this Agreement are for the benefit of the
                  Parties hereto and not for any other Person; provided,
                  however, that this shall not be construed to prevent Pac-West
                  from providing its Telecommunications Services to other
                  carriers. This Agreement shall not provide any Person not a
                  Party hereto with any remedy, claim, liability, reimbursement,
                  claim of action, or other right in excess of those existing
                  without reference hereto. 36.Physical Security

         36.1     U S WEST shall exercise the same degree of care to prevent
                  harm or damage to Pac-West or its employees, agents or
                  subscribers, or property as U S WEST provides itself. Pac-West
                  shall exercise the same degree of care to ensure the security
                  of its equipment physically collocated within U S WEST's space
                  as Pac-West provides such security to itself.

                                       28
<PAGE>

                  36.1.1   U S WEST will restrict access to approved personnel
                           to U S WEST's buildings. Pac-West is responsible for
                           the action of its employees and other authorized
                           non-Pac-West personnel; U S WEST is responsible for
                           the action of its employees and other authorized
                           non-U S WEST personnel.

                  36.1.2   U S WEST will furnish to Pac-West the current name(s)
                           and telephone number(s) of those central office
                           supervisor(s) where a physical collocation
                           arrangement exists. The central office supervisor(s)
                           will be the only U S WEST employee(s) with access to
                           Pac-West collocation space.

                  36.1.3   U S WEST will comply at all times with U S WEST
                           security and safety procedures at the individual
                           central office locations where Pac-West has physical
                           collocation arrangements. The Parties will cooperate
                           to analyze security procedures of each company to
                           evaluate ways in which security procedures of US WEST
                           may be enhanced.

                  36.1.4   U S WEST will allow Pac-West to inspect or observe
                           its physical spaces which house or contain Pac-West
                           equipment or equipment enclosures at any time upon
                           completion of the physical collocation quotation.
                           Upon completion of the build out of the physical
                           space, U S WEST will furnish Pac-West with all keys,
                           entry codes, lock combinations, or other materials or
                           information which may be needed to gain entry via
                           direct access to Pac-West's physical space.

                  36.1.5   U S WEST agrees to logically partition any U S WEST
                           owned access device systems, whether biometric or
                           card reader, or types which are encoded identically
                           or mechanical coded locks on external and or internal
                           doors to spaces which house Pac-West equipment

                  36.1.6   U S WEST agrees to limit the keys used in its keying
                           systems for spaces which contain Pac-West equipment
                           to the U S WEST supervisor for the specific facility
                           to emergency access only. Pac-West shall further have
                           the right to change locks where deemed necessary for
                           the protection and security of its physical spaces
                           and will provide the U S WEST supervisor with the
                           current key.

                  36.1.8   U S WEST shall control unauthorized access from
                           passenger and freight elevators, elevator lobbies and
                           spaces which contain or house Pac-West equipment or
                           equipment space in the same manner as U S WEST
                           provides such control for itself.

                  36.1.9   U S WEST will provide notification to designated
                           Pac-West personnel to indicate an actual or attempted
                           security breach of Pac-West physical space in the
                           same time frame as U S WEST provides such
                           notification to itself.

37.      Network Security

         37.1     U S WEST shall provide an appropriate and sufficient back-up
                  and recovery plan to be used in the event of a system failure
                  or emergency.

         37.2     U S WEST shall install controls to (a) disconnect a user for a
                  pre-determined period of inactivity on authorized ports; (b)
                  protect subscriber proprietary information; and (c) ensure
                  both ongoing operational and update integrity.

                                       29
<PAGE>

         37.3     Each Party shall be responsible for the security arrangements
                  on its side of the network to the Point of Interconnection.
                  The Parties shall jointly cooperate to analyze network
                  security procedures and cooperate to ensure the systems,
                  access and devices are appropriately secured and compatible.

38.      Revenue Protection

         38.1     U S WEST shall make available to Pac-West all present and
                  future fraud prevention or revenue protection features that U
                  S WEST provides to itself or others. These features include,
                  but are not limited to, operator screening codes, call
                  blocking of domestic, international blocking for business and
                  residence, 900, NPA-976, and specific line numbers. U S WEST
                  shall additionally provide partitioned access to fraud
                  prevention, detection and control functionality within
                  pertinent Operations Support Systems ("OSS") which include,
                  but are not limited to, Line Information Data Base Fraud
                  monitoring systems.

         38.2     Uncollectible or unbillable revenues resulting from, but not
                  confined to, provisioning, maintenance, or signal network
                  routing errors shall be the responsibility of the Party
                  causing such error.

         38.3     Uncollectible or unbillable revenues resulting from the
                  accidental or malicious alteration of software underlying
                  Network Elements or their subtending operational support
                  systems by unauthorized third parties shall be the
                  responsibility of the Party having administrative control of
                  access to said Network Element or operational support system
                  software.

         38.4     Each Party shall be responsible for any uncollectible or
                  unbillable revenues resulting from the unauthorized use of
                  facilities under its control or services it provides,
                  including clip-on fraud.

         38.5     The Parties shall work cooperatively to minimize fraud
                  associated with third-number billed calls, calling card calls,
                  and any other services related to this Agreement

39.      Law Enforcement Interface

         39.1     U S WEST shall provide all necessary assistance to facilitate
                  the execution of wiretap or dialed number recorder orders from
                  law enforcement authorities.

40.      Collocation

         40.1     General Description

                  40.1.1   Collocation is the right of Pac-West to obtain
                           dedicated space in U S WEST Local Serving Office
                           (LSO) or other U S WEST locations, including, but not
                           limited to, U S WEST serving wire center and tandem
                           offices, as well as all buildings or similar
                           structures owned or leased by U S WEST, whether or
                           not an public rights-of-way, that house U S WEST
                           network facilities, including, but not limited to,
                           vaults containing loop concentrators or similar
                           structures, and the right to place equipment in such
                           spaces for the purposes of interconnection with U S
                           WEST's network or access to U S WEST's unbundled
                           Network Elements. Collocation also includes U S WEST

                                       30
<PAGE>

                           providing resources necessary for the operation and
                           economical use of collocated equipment.

                  40.1.2   Collocation is offered for network interconnection
                           between the Parties, Pac-West may cross connect to
                           other collocated parties via facilities provided by U
                           S WEST, provided that Pac-West's collocated equipment
                           is also used for interconnection with U S WEST or
                           access to U S WEST's unbundled Network Elements.

                  40.1.3   Pac-West is responsible for bringing its own or
                           leased facilities to the U S WEST designated Point of
                           Interface ("POI"). U S WEST will extend Pac-West s
                           facilities from the POI to the cable vault within the
                           wire center. If necessary, U S WEST may bring the
                           facilities into compliance with U S WEST internal
                           fire code standards and extend the facilities to the
                           collocated space.

                 40.1.4   Pac-West will be provided two (2) points of entry into
                          the U S WEST wire center only when there are at least
                          two (2) existing entry points for U S WEST cable and
                          when there are vacant entrance ducts in both.

                 40.1.5   Pac-West may collocate transmission equipment
                          (including Digital Cross Connect Systems and Remote
                          Switching Units (RSUs)) to terminate basic
                          transmission facilities, but Pac-West shall not use
                          physically collocated equipment to avoid payment of
                          access charges.(18) Pac-West must identify what
                          equipment will be installed, to allow for U S WEST to
                          use this information in engineering the power, floor
                          loading, heat release, environmental participant
                          level, and HVAC.

                 40.1.6   Pac-West may collocate the amount and type of
                          equipment it deems necessary in its collocated space
                          in accordance with FCC rules and regulations.(19) U S
                          WEST shall not restrict the types of equipment to be
                          installed except as U S WEST may demonstrate to the
                          Commission that a particular request is not practical
                          for technical or space reasons.(20)

                 40.1.7   Expanded Interconnection Channel Termination (EICT).
                          Telecommunications Interconnection between Pac-West's
                          collocated equipment and U S WEST's network may be
                          accomplished via an Expanded Interconnection Channel
                          Termination (EICT). This element can be at the DS-3,
                          DS-1, DS-0, or any other technically feasible level,
                          subject to network disclosure requirements of the FCC,
                          depending on the U S WEST service to which it is
                          connected. The terms and conditions of the tariff for
                          EICT are incorporated only to the extent that they are
                          agreed to by the Parties. Within ninety (90) days (or
                          other acceptable time agreed to by the Parties) of the
                          Effective Date of this Agreement, the Parties will
                          meet to review the tariff and seek resolution on
                          disagreed items.

                 40.1.8   Consistent with U S WEST's internal practice, within
                          ten (10) Business Days of Pac-West's request for any
                          space, U S WEST shall provide information available to
                          it regarding the environmental conditions of the space
                          provided for placement of equipment and
                          interconnection, including, but not limited to, the
                          existence and

----------

18  Per Order at paces 5-6, Issue 9(a) and per Approval at page 13, paragraph A.
19  Per Order at pages 5-6, Issue 9(a).
20  Per Order at page 7, Issue 10.

                                       31
<PAGE>

                          condition of asbestos, lead paint, hazardous substance
                          contamination, or radon. Information is considered
                          "available" under this Agreement if it is in U S
                          WEST's possession or files, or the possession of an
                          agent, contractor, employee. lessor, or tenant of U S
                          WEST's that holds such information on U S WEST's
                          behalf.

                 40.1.9   U S WEST shall allow Pac-West to perform any
                          environmental site investigations, including, but not
                          limited to, asbestos surveys, which Pac-West deems to
                          be necessary in support of its collocation needs.
                          Pac-West shall advise U S WEST in writing of its
                          intent to conduct such investigation, and shall
                          receive written approval from 6 S WEST to proceed.
                          Pac-West shall indemnify U S WEST according to Section
                          18 of this Part A of this Agreement for any loss or
                          claim for damage suffered by U S WEST as a result of
                          Pac-West's actions during any site inspection.

                 40.1.10  If the space provided for the placement of equipment,
                          Interconnection, or provision of service contains
                          environmental contamination or hazardous material,
                          particularly, but not limited to, asbestos, lead paint
                          or radon, which makes the placement of such equipment
                          or Interconnect:ion hazardous, U S WEST shall offer an
                          alternative space, if available, for Pac-West s
                          consideration.

        40.2     Virtual Collocation

                 40.2.1   U S WEST shall provide virtual collocation for the
                          purpose of Interconnection or access to unbundled
                          Network Elements subject to the rates, terms and
                          conditions of this Agreement.

                 40.2.2   Upon mutual agreement Pac-West will have physical
                          access to the U S WEST wire center building pursuant
                          to a virtual collocation arrangement.

                 40.2.3   Pac-West will be responsible for obtaining and
                          providing to U S WEST administrative codes, e.g.,
                          common language codes, for all equipment specified by
                          Pac-West and installed in wire center buildings.

                 40.2.4   Pac-West will be responsible for payment of training
                          of U S WEST employees for the maintenance, operation
                          and installation of Pac-West's virtually collocated
                          equipment when that equipment is different than the
                          equipment used by U S WEST. Training conditions are
                          further described in Section 40.4.3 of this Part A of
                          this Agreement, Virtual Collocation Rate Elements.

                 40.2.5   Pac-West will be responsible for payment of reasonable
                          charges incurred as a result of agreed upon
                          maintenance and/or repair of Pac-West's virtually
                          collocated equipment

                 40-2.6   U S WEST does not guarantee the reliability of
                          Pac-West's virtually collocated equipment, but U S
                          WEST is responsible for proper installation,
                          maintenance and repair of such equipment including the
                          change out of electronic cards provided by Pac-West

                 40-2.7   Pac-West is responsible for ensuring the functionality
                          and interoperability of virtually collocated SONET
                          equipment provided by different manufacturers.

                 40-2.8   Pac-West, as bailor, will transfer possession of
                          Pac-West's virtually collocated equipment to U S WEST,
                          as bailee, for the sole purpose of providing U S WEST
                          with the ability to install, maintain and repair
                          Pac-West's virtually collocated

                                       32
<PAGE>

                          equipment. Title to the Pac-West virtually collocated
                          equipment shall not pass to U S WEST.

                 40.2.9   Pac-West shall ensure that upon receipt by U S WEST of
                          Pac-West's virtually collocated equipment, Pac-West
                          will make available all access to ongoing technical
                          support to U S WEST, as available under the equipment
                          warranty or other terms and conditions, all at
                          Pac-West's expense. Pac-West shall advise the
                          manufacturer and seller of the virtually collocated
                          equipment that it will be installed, maintained and
                          repaired by U S WEST.

                 40.2.10  Pac-West's virtually collocated equipment must comply
                          with the Bellcore Network Equipment Building System
                          (NEBS) Generic Equipment Requirements TR-NWT-000063,
                          electromagnetic compatibility (EMC) per GR-1 089-CORE,
                          Company wire center environmental and transmission
                          standards and any statutory (local, state or federal)
                          and/or regulatory requirements, all of the foregoing
                          which may be in effect at the time of equipment
                          installation or which may subsequently become
                          effective. Pac-West shall provide U S WEST interface
                          specifications (e.g., electrical, functional, physical
                          and software) of Pac-West's virtually collocated
                          equipment.

                 40.2.11  Pac-West must specify all software options and
                          associated plug-ins for its virtually collocated
                          equipment.

                 40.2.12  Pac-West is responsible for purchasing and maintaining
                          a supply of spares. Upon failure of the Pac-West
                          virtually collocated equipment, Pac-West is
                          responsible for transportation and delivery of
                          maintenance spares to U S WEST at the wire center
                          housing the failed equipment.

                 40.2.13  Where Pac-West is virtually collocated in a premises
                          which was initially prepared for virtual collocation,
                          Pac-West may elect to retain its virtual collocation
                          in that premises and expand that virtual collocation
                          according to the rates, terms and conditions of this
                          Agreement.

        40.3     Physical Collocation

                 40.3.1   U S WEST shall provide to Pac-West physical
                          collocation of equipment necessary for Interconnection
                          or for access to unbundled Network Elements, except
                          that U S WEST shall provide for virtual collocation
                          where space is available or expansion or rearrangement
                          is possible if U S WEST demonstrates to the Commission
                          that physical collocation is not practical for
                          technical reasons or because of space limitations, as
                          provided in Section 251 (c)(6) of the Act Pac-West
                          shall pay a prorated amount for expansion of said
                          space. U S WEST shall provide such collocation for the
                          purpose of Interconnection or access to unbundled
                          Network Elements, except as otherwise mutually agreed
                          to in writing by the Parties or as required by the FCC
                          or the Commission subject to the rates, terms and
                          conditions of this Agreement.

                          40.3.1.1 U S WEST shall permit Pac-West to use vendors
                          for all required engineering and installation services
                          associated with its collocated equipment which are
                          being collocated by Pac-West pursuant to this
                          Agreement. Within one hundred and twenty (120) days
                          after the Effective Date of this Agreement, U S WEST
                          and Pac-West shall compose and agree on a list of
                          approved vendors and/or agree on minimum
                          qualifications for

                                       33
<PAGE>

                          such contractors consistent with industry standards,
                          such agreement not to be unreasonably withheld. In the
                          event such agreement cannot be reached and the dispute
                          resolution process outlined in Section 27 above has
                          not concluded on the issue of approved vendors, the
                          list of approved vendors maintained by U S WEST as of
                          the Effective Date of this Agreement shall be the
                          default list until the conclusion of the dispute
                          resolution process.(21)

                 40.3.2   Where Pac-West is virtually collocated in a premises
                          which was initially prepared for virtual collocation,
                          Pac-West may elect, unless it is not practical for
                          technical reasons or because of space limitations, to
                          convert its virtual collocation to physical
                          collocation at such premises in which case Pac-West
                          shall coordinate the construction and rearrangement
                          with U S WEST of its equipment (I DLC and
                          transmission) and circuits for which Pac-West shall
                          pay U S WEST at applicable rates, and pursuant to the
                          other terms and conditions in this Agreement. In
                          addition, all applicable physical collocation
                          recurring charges shall apply.

                40.3.3   Pac-West will be allowed access to the POI on
                         non-discriminatory terms. Pac-West owns and is
                         responsible for the installation, maintenance and
                         repair of its equipment located within the space rented
                         from U S WEST.

                40.3.4   Pac-West must use leased space as soon as reasonably
                         possible and may not warehouse space for later use or
                         sublease to another provider. Physical collocation is
                         offered on a space-available, first-come, first-served
                         basis.

                40.3.5   The minimum standard leasable amount of floor space is
                         one hundred (100) square feet Pac-West must efficiently
                         use the leased space and no more than fifty percent
                         (50%) of the floor space may be used for storage
                         cabinets and work surfaces. Pac-West and U S WEST may
                         negotiate other storage arrangements on a case-by-case
                         basis. Pac-West may store spares within its collocated
                         space.(22)

                40.3.6   Pac-West's leased floor space will be separated from
                         other competitive providers and U S WEST space through
                         cages or hard walls. Pac-West may elect to have U S
                         WEST construct the cage, or choose from U S WEST
                         approved contractors to construct the cage, meeting U S
                         WEST's installation Technical Publication 77350. Any
                         deviation to Pac-West's request must be approved.

                40.3.7   The following standard features will be provided by U S
                         WEST:

                         (a)      Heating, ventilation and air conditioning.

                         (b)      Smoke/fire detection and any other building
                                   code requirement.

                40.3.8   U S WEST Responsibilities

                         (a)      Design the floor space within each location
                                  which will constitute Pac-West's leased space.

----------

21 Per Order at page 6, Issue 9(c).
22 Per Order, at page 8, Issue 10(a).

                                       34
<PAGE>

                         (b)      Ensure that the necessary construction work is
                                  performed on a timely basis to build
                                  Pac-West's leased physical space and the riser
                                  from the vault to the leased physical space.

                         (c)      Develop a quotation specific to Pac-West's
                                  request.

                         (d)      Extend U S WEST-provided and owned fiber
                                  optic, copper or coaxial(23) cable, whichever
                                  is most efficient, from the POI through the
                                  cable Vault and extend the cable to Pac-West's
                                  leased physical space or place the cable in
                                  fire retardant tubing prior to extension to
                                  Pac-West's leased physical space.

                         (e)      Installation and maintenance and all related
                                  activity necessary to provide Channel
                                  Termination between U S WEST's and Pac-West's
                                  equipment.

                         (f)      Work cooperatively with Pac-West in matters of
                                  joint testing and maintenance.

                40.3.9   Pac-West Responsibilities

                         (a)      Determine the type of enclosure for the
                                  physical space.

                         (b)      Procure, install and maintain fiber optic,
                                  copper or coaxial(24) 124 facilities up to the
                                  U S WEST designated POI.

                         (c)      Provide for installation, maintenance, repair
                                  and service of all Pac-West's equipment
                                  located in the leased physical space.

                         (d)      Ensure that all equipment installed by
                                  Pac-West complies with Bellcore Network
                                  Equipment Building System Generic Equipment
                                  requirements, U S WEST environmental and
                                  transmission standards, and any statutory
                                  (local, state or federal) or regulatory
                                  requirements in effect at the time of
                                  equipment installation or that subsequently
                                  become effective.

                40.3.10   The installation of any Interconnection service will
                          be coordinated between the Parties so that Pac-West
                          may utilize those services once Pac-West has accepted
                          its leased physical space.

                40.3.11   If, at any time, U S WEST reasonably determines that
                          the equipment or the installation does not meet
                          standard industry requirements, such failure being due
                          to actions of Pac-West or its agents, Pac-West will be
                          responsible for the costs associated with the removal,
                          modification to, or installation of the equipment to
                          bring it into compliance. If Pac-West fails to correct
                          any non-compliance within thirty (30) calendar days or
                          as soon as reasonably practical after the receipt of
                          written notice of non-compliance, U S WEST may have
                          the equipment removed or the condition corrected at
                          Pac-West's expense.

                40.3.12   If, during installation, U S WEST reasonably
                          determines that Pac-West activities or equipment are
                          unsafe, non-industry standard or in violation of any
                          applicable laws

----------

23   Per Order at page 8, Issue 1 0(a).
24   Per Order at page 8, Issue 1 0(a).

                                       35
<PAGE>

                         or regulations, U S WEST has the right to stop work
                         until the situation is remedied. If such conditions
                         pose an immediate threat to the safety of personnel.
                         interfere with the performance of U S WEST's service
                         obligations, or pose an immediate threat to the
                         physical integrity of the conduit system or the cable
                         facilities, U S WEST may perform such work and/or take
                         action as is necessary to correct the condition at
                         Pac-West's expense.

               40.3.13   U S WEST shall provide basic telephone service with a
                         connection jack as requested by Pac-West from U S WEST
                         for the collocated space. Upon Pac-West's request and
                         following the normal provisioning process, this service
                         shall be available at the Pac-West collocated space on
                         the day the space is turned over to Pac-West by U S
                         WEST.

               40.3.14   Where available, U S WEST shall provide access to
                         eyewash stations, bathrooms, and drinking water within
                         the collocated facility on a twenty-four (24) hours per
                         day, seven (7) days per week basis for Pac-West,
                         personnel and its designated agents.

               40.3.15   U S WEST shall provide Pac-West with written notice
                         five (5) Business Days prior to those instances where U
                         S WEST or its subcontractors may be performing work
                         that could reasonably potentially affect Pac-West's
                         service. U S WEST will make reasonable efforts to
                         inform Pac-West by telephone of any emergency related
                         activity prior to the start of the activity that U S
                         WEST or its subcontractors may be performing that could
                         reasonably potentially affect Pac-West's service, so
                         that Pac-West can take any action required to monitor
                         or protect its service.

               40.3.16   U S WEST shall provide information regarding the
                         location, type, and cable termination requirements
                         (i.e., connector type, number and type of pairs, and
                         naming convention) for U S WEST point of termination to
                         Pac-West within five (5) Business Days of Pac-West's
                         acceptance of U S WEST's quote for collocated space.

               40.3.17   U S WEST shall provide the dimensions for Pac-West
                         outside plant fiber ingress and egress into Pac-West
                         collocated space within five (5) Business Days of
                         Pac-West's acceptance of U S WEST's quote for
                         collocated space.

               40.3.18   U S WEST shall provide the sizes and number of power
                         feeders for the collocated space to Pac-West within ten
                         (10) Business Days of Pac-West's acceptance of U S
                         WEST's quote for collocated space.

               40.3.19   U S WEST shall provide positive confirmation to
                         Pac-West when construction of Pac-West collocated space
                         is fifty percent (50%) completed. This confirmation
                         shall also include confirmation of the scheduled
                         completion and turnover dates.

                40.3.20  Pac-West shall be compensated by U S WEST in accordance
                         for any delays in the negotiated completion and
                         turnover dates which create expenditures or delays for
                         Pac-West.(25)

               40.3.21   With the exception of Subparagraph (b) below, U S WEST
                         shall provide the following information to Pac-West
                         within five (5) Business Days or as reasonably
                         necessary upon receipt of a written request from
                         Pac-West:

----------

25  Per Order at page 8, Issue 1 0(a).

                                       36
<PAGE>

               (a)      additional work restriction guidelines.
               (b)      U S WEST or industry technical publication guidelines
                        that impact the design of U S WEST collocated equipment,
                        unless such documents are already in the possession of
                        Pac-West. The following U S WEST Technical Publications
                        provide information regarding central office equipment
                        and collocation guidelines:

                            77350    Central Office Telecommunications Equipment
                                     Installation and Removal Guidelines

                            77351    Central Office Telecommunications Equipment
                                     Engineering Standards

                            77355    Grounding - Central Office and Remote
                                     Equipment Environment

                            77386    Expanded Interconnection and Collocation
                                     for Private Line Transport and Switched
                                     Access Services

                         Pac-West may obtain the above documents from:

                              Faison Office Products Company
                              3251 Revere St., Suite 200
                              Aurora, Colorado 80011
                              (303) 340-3672

               (c)      appropriate U S WEST contacts (names and telephone
                        numbers) for the following areas:

                              Engineering
                              Physical & Logical Security
                              Provisioning
                              Billing
                              Operations
                              Site and Building Managers
                              Environmental and Safety

               (d)      escalation process for the U S WEST employees (names,
                        telephone numbers and the escalation order) for any
                        disputes or problems that might arise pursuant to
                        Pac-West's collocation.

     40.3.22  Power as referenced in this Agreement refers to any electrical
              power source supplied by U S WEST for Pac-West equipment. U S WEST
              will supply power to support Pac-West equipment at equipment
              specific DC and AC voltages. At a minimum, U S WEST shall supply
              power to Pac-West at parity with that provided by U S WEST to
              itself. If U S WEST performance, availability or restoration falls
              Is below industry standards, U S WEST shall bring itself into
              compliance with such industry standards as soon as technologically
              feasible.

              (a)      Central office power supplied by U S WEST into the
                       Pac-West equipment area, shall be supplied in the form of
                       power feeders (cables) on cable racking into the
                       designated Pac-West equipment area. The power feeders
                       (cables) shall efficiently and economically support the
                       requested quantity and capacity of Pac-West equipment.
                       The termination location shall be mutually agreed upon by
                       the Parties.

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<PAGE>

                           (b)      U S WEST power equipment supporting
                                    Pac-West's equipment shall:

                                    i.       comply with applicable industry
                                             standards (e.g., Bellcore. NEBS,
                                             IEEE, UL, and NEC) or
                                             manufacturer's equipment power
                                             requirement specifications for
                                             equipment installation, cabling
                                             practices, and physical equipment
                                             layout:

                                    ii.      have redundant power feeds with
                                             physical diversity and battery
                                             back-up as required by the
                                             equipment manufacturer's
                                             specifications for Pac-West
                                             equipment, or, at minimum, at panty
                                             with that provided for similar U S
                                             WEST equipment at that location;

                                    iii.     provide central office ground,
                                             connected to a ground electrode
                                             located within the Pac-West
                                             collocated space, at a level above
                                             the top of Pac-West equipment plus
                                             or minus two (2) feet to the left
                                             or right of Pac-West's final
                                             request;

                                    iv.      provide an installation sequence
                                             and access that will allow
                                             installation efforts in parallel
                                             without jeopardizing personnel
                                             safety or existing services of
                                             either Party;

                                    v.       provide cabling that adheres to
                                             Bell Communication Research
                                             (Bellcore) Network
                                             Equipment-Building System (NEBS)
                                             standards TR-EOP-000063;

                                    vi.      provide Lock Out-Tag Out and other
                                             electrical safety procedures and
                                             devices in conformance with the
                                             most stringent of OSHA or industry
                                             guidelines; and

                                    vii.     ensure that installed equipment
                                             meets Bellcore specifications.

         40.4      Collocation Rate Elements

                   40.4.1  Common Rate Elements

                           The following rate elements are common to both
                           virtual and physical collocation:

                            (a)     Quote Preparation Fee. This covers the work
                                    involved in developing a quotation for
                                    Pac-West for the total costs involved in its
                                    collocation request

                            (b)     Entrance Facility. Provides for fiber optic
                                    cable on a per two (2) fiber increment basis
                                    from the point of interconnection utilizing
                                    U S WEST owned, conventional single mode
                                    type of fiber optic cable to the collocated
                                    equipment (for virtual collocation) or to
                                    the leased space (for physical collocation).
                                    Entrance facility includes riser, fiber
                                    placement, entrance closure,
                                    conduit/innerduct, and core drilling.

                            (c)     Cable Splicing. Represents the labor and
                                    equipment to perform a subsequent splice to
                                    the Pac-West provided fiber optic cable
                                    after the initial installation splice.
                                    Includes a per-setup and a per-fiber-spliced
                                    rate elements.

                           (d)      48 Volt Power. Provides 48 volt power to the
                                    Pac-West collocated equipment. Charged on a
                                    per ampere basis.

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<PAGE>

                           (e)      48 Volt Power Cable. Provides for the
                                    transmission of -48 Volt DC power to the
                                    collocated equipment. It includes
                                    engineering, furnishing and installing the
                                    main distribution bay power breaker,
                                    associated power cable, cable rack and local
                                    power bay to the closest power distribution
                                    bay. it also includes the power cable
                                    (feeders) A and B from the local power
                                    distribution bay to the leased physical
                                    space (for physical collocation) or to the
                                    collocated equipment (for virtual
                                    collocation).

                           (f)      Inspector Labor. Provides for the U S WEST
                                    qualified personnel necessary when Pac-West
                                    requires access to the POI after the initial
                                    installation or access to its physical
                                    collocation floor space, where an escort is
                                    required. A call-out of an inspector after
                                    business hours is subject to a minimum
                                    charge of four (4) hours. Maintenance Labor,
                                    Inspector Labor, Engineering Labor and
                                    Equipment Labor business hours are
                                    considered to be Monday through Friday, 8:00
                                    am to 5:00 pm and after business hours are
                                    after 5:00 pm and before 8:00 am, Monday
                                    through Friday, all day Saturday, Sunday and
                                    holidays.

                           (g)      Expanded Interconnection Channel
                                    Regeneration. Required when the distance
                                    from the leased physical space (for physical
                                    collocation) or from the collocated
                                    equipment (for virtual collocation) to the U
                                    S WEST network is of sufficient length to
                                    require regeneration.

                           (h)      U S WEST will provide external
                                    synchronization when available.

                           (i)      U S WEST will provide 20 hertz ringing
                                    supply when available.

                  40.4.2 Physical Collocation Rate Elements

                           The following rate elements apply only to physical
                           collocation arrangements:

                           (a)      Enclosure Buildout. The Enclosure Buildout
                                    element, either cage or hardwall, includes
                                    the material and labor to construct the
                                    enclosure specified by Pac-West or Pac-West
                                    may choose from U S WEST-approved
                                    contractors to construct the cage, meeting
                                    U S WEST's installation Technical
                                    Publication 77350. It includes the enclosure
                                    (cage or hardwall), air conditioning (to
                                    support Pac-West loads specified), lighting
                                    (not to exceed 2 watts per square foot), and
                                    convenience outlets (3 per cage or the
                                    number required by building code for the
                                    hardwall enclosure). It also provides for
                                    humidification, if required. Pricing for
                                    Enclosure Buildout will be provided on an
                                    individual case basis ("ICB") due to the
                                    uniqueness of Pac-West's requirements,
                                    central office structure and arrangements.

                           (b)      Floor Space Rental. This element provides
                                    for the rental of the floor space provided
                                    to Pac-West pursuant to physical collocation
                                    arrangement.

                  40.4.3 Virtual Collocation Rate Elements

                           The following rate elements apply only to virtual
                           collocation arrangements:

                           (a)      Maintenance Labor. Provides for the labor
                                    necessary for repair of out of service
                                    and/or service-affecting conditions and
                                    preventative maintenance of the Pac-West
                                    virtually collocated equipment. Pac-West is
                                    responsible for

                                       39
<PAGE>

                           ordering maintenance spares. U S WEST will perform
                           maintenance and/or repair work upon receipt of the
                           replacement maintenance spare and/or equipment for
                           Pac-West. A call-out of a maintenance technician
                           after business hours is subject to a minimum charge
                           of four (4) hours. Maintenance Labor, Inspector
                           Labor, Engineering Labor and Equipment Labor
                           business hours are considered to be Monday through
                           Friday, 8:00 am to 5:00 pm and after business hours
                           are after 5:00 pm and before 8:00 am, Monday through
                           Friday, all day Saturday, Sunday and holidays.

                  (b)      Training Labor. Provides for the billing of
                           vendor-provided training for U S WEST personnel on a
                           metropolitan service area basis, necessary for
                           Pac-West virtually collocated equipment which is
                           different from equipment used by U S WEST. U S WEST
                           will require three (3) U S WEST employees to be
                           trained per metropolitan service area in which the
                           Pac-West virtually collocated equipment is located.
                           If, by an act of U S WEST, trained employees are
                           relocated, retired, or are no longer available, U S
                           WEST will not require Pac-West to provide training
                           for additional U S WEST employees for the same
                           virtually collocated equipment in the same
                           metropolitan area. Fifty percent (50%) of the amount
                           of training billed to Pac-West will be refunded to
                           Pac-West, should a second collocator or U S WEST in
                           the same metropolitan area select the same virtually
                           collocated equipment as Pac-West. The second
                           collocator or U S WEST will be charged one half of
                           the original amount paid by Pac-West for the same
                           metropolitan area.

                  (c)      Equipment Bay. Provides mounting space for the
                           Pac-West virtually collocated equipment. Each bay
                           includes the seven (7) foot bay, its installation,
                           and all necessary environmental supports. Mounting
                           space on the bay, including space for the fuse panel
                           and air gaps necessary for heat dissipation is
                           limited to 78 inches. The monthly rate is applied per
                           shelf.

                  (d)      Engineering Labor. Provides the planning and
                           engineering of the Pac-West virtually collocated
                           equipment at the time of installation, change or
                           removal.

                  (e)      Installation Labor. Provides for the installation,
                           change or removal of the Pac-West virtually
                           collocated equipment.

40.5     Collocation Installation Intervals

         40.5.1   U S WEST shall have a period of thirty (30) calendar days
                  after receipt by Pac-West of a Request for Collocation to
                  provide Pac-West with a written quotation containing all
                  nonrecurring charges and fees for the requested collocation
                  (the "Quotation Preparation Period"). Pac-West shall make
                  payment of fifty percent (50%) of the nonrecurring charges and
                  fees upon acceptance of the quotation ("Initial Payment!')
                  with the remainder due upon completion of the construction. In
                  the event Pac-West disputes the amount of U S WEST's proposed
                  nonrecurring charges and fees, Pac-West shall deposit fifty
                  percent (50%) of the nonrecurring charges and fees into an
                  interest bearing escrow account prior to the commencement of
                  construction ("Initial Deposit"). The remainder of the
                  nonrecurring charges and fees shall be deposited into the
                  escrow account upon

                                       40
<PAGE>

                  completion of the construction. Upon resolution of the
                  dispute, the escrow agent shall distribute amounts in the
                  account in accordance with the resolution of such dispute and
                  any interest that has accrued with respect to amounts in the
                  account shall be distributed proportionately to the Parties. U
                  S WEST shall complete installation pursuant to the Pac-West
                  Request for Collocation within a maximum of three (3) months
                  after the Initial Payment or Initial Deposit for physical or
                  virtual collocation. If there is a dispute between U S WEST
                  and Pac-West regarding the amount of any nonrecurring charges
                  and fees, such dispute shall be resolved in accordance with
                  Section 27 above. The pendency of any such dispute shall not
                  affect the obligation of U S WEST to complete collocation
                  within the installation intervals described above.(26)

41.      Technical References - Collocation

         Subject to Sections 1.3.1 and 1.3.2 of this Part A of this Agreement,
         U S WEST shall provide collocation in accordance with the following
         standards:

         41.1     Institute of Electrical and Electronics Engineers (IEEE)
                  Standard 383, IEEE Standard for Type Test of Class 1 E
                  Electric Cables, Field Splices, and Connections for Nuclear
                  Power Generating Stations;

         41.2     National Electrical Code (NEC), use most recent issue;

         41.3     TA-NPL-000286, NESS Generic Engineering Requirements for
                  System Assembly and Cable Distribution, Issue 2 (Bellcore,
                  January 1989);

         41.4     TR-EOP-000063 Network Equipment-Building System (NESS) Generic
                  Equipment Requirements, Issue 3, March 1988;

         41.5     TR-EOP-000151, Generic Requirements for 24-, 48-, 130-, and
                  140- Volt Central Office Power Plant Rectifiers, Issue 1
                  (Bellcore, May 1985);

         41.6     TR-EOP-000232, Generic Requirements for Lead-Acid Storage
                  Batteries, Issue 1 (Bellcore, June 1985);

         41.7     TR-NWT-0001 54, Generic Requirements for 24-, 48-, 130, and
                  140- Volt Central Office Power Plant Control and Distribution
                  Equipment Issue 2 (Bellcore, January 1992);

         41.8     TR-NWT-000295, Isolated Ground Planes: Definition and
                  Application to Telephone Central Offices, Issue 2 (Bellcore,
                  July 1992);

         41.9     TR-NWT-000840, Supplier Support Generic Requirements (SSGR),
                  (A Module of LSSGR, FR-NWT-000064), Issue 1 (Bellcore,
                  December 1991);

         41.10    TR-NWT-001275 Central Office Environment Installations/Removal
                  Generic Requirements, Issue 1, January 1993; and

         41.11    Underwriters' Laboratories Standard, U L 94.

----------

26   Per Order at page 9, Issue 12.

                                       41
<PAGE>

42.      Number Portability

         42.1     Interim Number Portability (INP)

                  42.1.1  General Terms

                  (a)     The Parties shall provide Interim Number Portability
                          ("INP") on a reciprocal basis to the extent
                          technically feasible.

                  (b)     Until permanent number portability is implemented by
                          the industry pursuant to regulations issued by the FCC
                          or the Commission, the Parties agree to provide INP to
                          each other through Remote Call Forwarding, Direct,
                          Inward Dialing, or other appropriate means as agreed
                          to by the Parties.

                  (c)     Once permanent number portability is implemented
                          pursuant to FCC or Commission regulation, either Party
                          may withdraw, at any time and at its sole discretion,
                          its INP offerings, subject to advance notice to the
                          other Party with sufficient time to allow for
                          coordination to allow the seamless and transparent
                          conversion of INP Customer numbers to permanent number
                          portability. Upon implementation of permanent number
                          portability pursuant to FCC regulations, both Parties
                          agree to conform and provide such permanent number
                          portability. The Parties agree to expeditiously
                          convert Customers from INP to permanent number
                          portability, provided that the interim service is not
                          removed until the Customer has been converted.

                 (d)      U S WEST will update and maintain its Line Information
                          Database ("LIDB") listings for numbers retained by
                          Pac-West and its Customer, and restrict or cancel
                          calling cards associated with these forwarded numbers
                          as directed by Pac-West Further, U S WEST will not
                          block third party and collect calls to those numbers
                          unless requested by Pac-West

                 (e)      The ordering Party shall specify, on a per telephone
                          number basis, which method of INP is to be employed
                          and the providing Party shall provide such method to
                          the extent technically feasible.

                 (f)      Where either Party has activated an entire NXX, or
                          activated a substantial portion of an NXX with the
                          remaining numbers in that NXX either reserved for
                          future use or otherwise unused, if these Customer(s)
                          choose to receive service from the other Party, the
                          first Party shall cooperate with the second Party to
                          have the entire NXX reassigned in the LERG (and
                          associated industry databases, routing tables, etc.)
                          to an End Office operated by the second Party. Such
                          transfer will be accomplished with appropriate
                          coordination between the Parties and subject to
                          appropriate industry lead times for movement of NXXs
                          from one switch to another.

                  42.1.2  Description Of Service

                  (a)     Interim Number Portability Service ("INP") is a
                          service arrangement that can be provided by U S WEST
                          to Pac-West or by Pac-West to U S WEST.

                  (b)     INP applies to those situations where an end-user
                          Customer elects to change service providers, and such
                          Customer also wishes to retain its

                                       42
<PAGE>

                          existing or reserved telephone number(s). INP consists
                          of providing the capability to route calls placed to
                          telephone numbers assigned to one Party's switches to
                          another Party's switches.

                 (c)      INP is available as INP-Remote Call Forwarding
                          ("INP-RCF') permitting a call to a U S WEST assigned
                          telephone number to be translated to Pac-West's
                          dialable local number. Pac-West may terminate the call
                          as desired. Additional capacity for simultaneous call
                          forwarding is available where technically feasible on
                          a per path basis. Pac-West will need to specify the
                          number of simultaneous calls to be forwarded for each
                          number ported.

                 (d)      DID is another INP method that makes use of direct
                          inward dialing trunks. Each DID trunk group used for
                          INP is dedicated to carrying DID INP traffic between
                          the U S WEST end office and the Pac-West switch.
                          Traffic on these trunks cannot overflow to other
                          trunks, so the number of trunks shall be
                          conservatively engineered by U S WEST. Also,
                          inter-switch signaling is usually limited to
                          multi-frequency (MF). This precludes passing Calling
                          Line ID to the Pac-West switch.

                 (e)      RI-PH will route a dialed call to the U S WEST switch
                          associated with the NXX of the dialed number. The U S
                          WEST switch shall then insert a prefix onto the dialed
                          number which identifies how the call is to be routed
                          to Pac-West. The prefixed dialed number is
                          transmitted to the U S WEST tandem switch to which
                          Pac-West is connected. Route indexing is only
                          available with seven (7) digit local dialing.

                 (f)      The prefix is removed by the operation of the tandem
                          switch and the dialed number is routed to Pac-West' s
                          switch so the routing of the call can be completed by
                          Pac-West

                          i.       DN-RI is a form of RI-PH that requires direct
                                   trunking between the U S WEST switch to which
                                   the ported number was originally assigned and
                                   the Pac-West switch to which the number has
                                   been ported. The U S WEST switch shall send
                                   the originally dialed number to the Pac-West
                                   switch without a prefix.

                          ii.      U S WEST shall provide RI-PH or DN-RI on an
                                   individual telephone number basis, as
                                   designated by Pac-West Where technically
                                   feasible, calls to ported numbers are first
                                   directed to the Pac-West switch over direct
                                   trunks but may overflow to tandem trunks if
                                   all trunks in the direct group are occupied.

                          iii.     For both RI-PH and DN-RI the trunks used may,
                                   at Pac-West' s option, be the same as those
                                   used for exchange of other local traffic with
                                   U S WEST. At Pac-West' s option, the trunks
                                   shall employ SS7 or in band signaling and may
                                   be one way or two way.

                 (g)      INP is subject to the following restrictions:

                          i.       An INP telephone number may be assigned by
                                   Pac-West only to Pac-West's Customers located
                                   within U S WEST's local calling area and toll
                                   rating area that is associated with the NXX
                                   of the ported number. This is to prevent the
                                   possibility of Customers using number
                                   portability to extend the local calling area.

                                       43
<PAGE>

                          ii.      INP is applicable only if Pac-West is engaged
                                   in a reciprocal traffic exchange arrangement
                                   with U S WEST.

                          iii.     INP is not offered for NXX Codes 555, 976,
                                   960 and 1+ sent-paid telephones, and Service
                                   Access Codes (i.e., 500, 700, 800/888. 900).
                                   INP is not available for FGA seven-digit
                                   numbers (including foreign exchange (FEX), FX
                                   and FX/ONAL and foreign Central Office
                                   service). Furthermore, INP numbers may only
                                   be used consistent with network efficiency
                                   and integrity i.e., inhibitions on mass
                                   calling events.

                          iv.      The ported telephone number will be returned
                                   to the switch which originally had the ported
                                   number when the ported service is
                                   disconnected. The normal intercept
                                   announcement will be provided by the porting
                                   company for the period of time until the
                                   telephone number is reassigned.

                          v.       Within thirty (30) days after the Effective
                                   Date of this Agreement, U S WEST shall
                                   provide Pac-West a list of those features
                                   that are not available for INP telephone
                                   numbers due to technical limitations.

            42.1.3 Ordering and Maintenance

                     (a)      Pac-West is responsible for all direct
                              interactions with Pac-West's end users with
                              respect to ordering and maintenance.

                     (b)      U S WEST shall exchange with Pac-West SS7 TCAP
                              messages as required for the implementation of
                              Custom Local Area Signaling Services (CLASS) or
                              other features available in the U S WEST network.

                     (c)      Each Party's designated INP switch must return
                              answer and disconnect supervision to the other
                              Party's switch.

                     (d)      U S WEST shall disclose to Pac-West any technical
                              or capacity limitations that would prevent use of
                              a requested INP in a particular switching office.

                     (e)      The Parties will develop and implement an
                              efficient deployment process to ensure call
                              routing integrity for toll and local calls, with
                              the objective to eliminate Customer downtime.

                     (f)      For INP, Pac-West shall have the right to use the
                              existing U S WEST 911 infrastructure for all 911
                              capabilities. When RCF is used for Pac-West
                              subscribers, both the ported numbers and shadow
                              numbers shall be stored in the ALI databases.
                              Pac-West shall have the right to verify the
                              accuracy of the information in the ALI databases
                              via direct connection to the SCC ALI database
                              pursuant to the same process and procedures SCC
                              makes available to U S WEST.

   42.2     Permanent Number Portability (PNP)

            42.2.1   Upon implementation of Permanent Number Portability (PNP)
                     pursuant to FCC regulations, both Parties agree to conform
                     and provide such Permanent Number

                                       44
<PAGE>

         Portability. To the extent consistent with the FCC rules as amended
         from time to time, the requirements for PNP shall include the
         following:

42.2.2   Subscribers must be able to change local service providers and retain
         the same telephone number(s) consistent with FCC rules and regulations.

42.2.3   The PNP network architecture shall not subject alternate local exchange
         carriers to any degradation of service compared to U S WEST in any
         relevant measure, including transmission quality, switching and
         transport costs, increased call set-up time and post-dial delay, and
         Pac-West shall not be required to rely on the U S WEST network for
         calls completing to its ported Customers.

42.2.4   When an office is equipped with PNP, in accordance with the procedures
         specified by the North American Numbering Council, the NXXs in the
         office shall be defined as portable and translations will be changed in
         the Parties' switches to open those NXXs for database queries.

42.2.5   When an NXX is defined as portable, it shall also be defined as
         portable in all PNP-capable offices which have direct trunks to the
         given switch.

42.2.6.  Upon introduction of PNP in a Metropolitan Statistical Area ("MSA"),
         the applicable switches will be converted according to a published
         schedule with no unreasonable delay. All portable NXXs shall be
         recognized as portable, with queries launched from these switches.

42.2.7   Prior to implementation of PNP, the Parties agree to develop,
         implement, and maintain efficient methods to maintain 911 database
         integrity when a subscriber ports to another service provider. The
         Parties agree that the Customer should not be dropped from the 911
         database during the transition.

42.2.8   When a subscriber ports to another service provider and has previously
         secured a reservation of line numbers from the donor provider for
         possible activation at some future point, these reserved but inactive
         numbers shall "port' along with the active numbers being ported by the
         subscriber. So long as Pac-West maintains the reserved numbers, U S
         WEST shall not reassign said numbers. The Parties will allocate the
         revenue generated from number reservations in accordance with a
         schedule to be mutually agreed upon by the Parties within ninety (90)
         days of the Effective Date of this Agreement.

42.2.9   During the process of porting a subscriber, the donor service provider
         shall implement the 1 O-Digit trigger feature, when the technology is
         made available in each switch in accordance with the schedules adopted
         by the FCC. When the donor provider receives the porting request, the
         unconditional trigger shall be applied to the subscriber's line at the
         time that has been agreed to via the Western Region LNP Operations
         Guidelines in order to overcome donor network time delays in the
         disconnection of the subscriber. Alternatively, when an activation
         notice is sent to an NPAC to trigger a broadcast to service provider
         databases, the donor switch shall have its translations changed to
         disconnect the subscriber's line within thirty (30) minutes or less
         after the donor network Local SMS's has received the broadcast Porting
         requests that require coordination between service providers, in
         accordance with the guidelines, will be handled on a case-by-case basis
         and will not be covered by the above.

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<PAGE>

                  42.2.10 Both Pac-West and U S WEST shall:

                           (a)      support all emergency and operator services.

                           (b)      use scarce numbering resources efficiently
                                    and administer such resources in a
                                    competitively neutral manner.

                           (c)      jointly cooperate with each other to provide
                                    the information necessary to rate and bill
                                    all types of calls.

                           (d)      jointly cooperate with each other to apply
                                    PNP consistently on a nationwide basis, and
                                    in accordance with all FCC directives.

                  42.2.11  A ten-digit code, consistent with the North American
                           Numbering Plan, shall be used as a network address
                           for each switch that terminates subscriber lines,
                           i.e., an end office. This address shall support
                           existing six-digit routing and may be implemented
                           without changes to existing switch routing
                           algorithms. In existing end offices, this address
                           shall be selected from one of its existing NPA-NXXs.
                           New end offices shall be assigned an address through
                           normal administrative processes.

                  42.2.12  PNP employs an "N-1" (N minus 1) Query Strategy for
                           interLATA or intraLATA toll calls, by which the
                           originating carrier will pass the call to the
                           appropriate toll carrier who will perform a query to
                           an external routing database and efficiently route
                           the call to the appropriate terminating local carrier
                           either directly or through an access tandem office.

                  42.2.13  U S WEST shall furnish Pac-West with the first six
                           (6) digits of the originating address when it
                           supplies Pac-West with the Jurisdiction Information
                           Parameter for the originating address message.

                  42.2.14  U S WEST agrees to begin the introduction of PNP to
                           end user subscribers who may begin changing local
                           service providers and retaining their existing
                           telephone number based on the time line set out by
                           the FCC in its Telephone Number Portability Order (CC
                           Docket No. 95-116), or in accordance with a
                           Commission order if such time for introduction of PNP
                           set by the Commission is earlier than would result
                           under the FCC Order.

                  42.2.15  The generic requirements for the PNP alternative will
                           be implemented in accordance with industry-standard
                           specifications.

                  42.2.16  For a local call to a ported number, the originating
                           carrier is the "N-1" carrier. It will perform an
                           external database query as soon as the call reaches
                           the first PNP-capable switch in the call path and
                           pass the call to the appropriate terminating carrier.
                           A PNP-capable originating switch shall query on a
                           local call to a portable NXX as soon as it determines
                           that it (the originating switch) does not serve the
                           dialed number.

                  42.2.17  U S WEST shall be the default carrier for database
                           queries where Pac-West is unable to perform its own
                           query due to abnormal conditions. Pac-West shall be
                           the default carrier for database queries where U S
                           WEST is unable to perform its own query due to
                           abnormal conditions.

                  42.2-18  U S WEST will provide Pac-West PNP for subscribers
                           moving to a different location, or staying at the
                           same location, within the same rate center area.

                                       46
<PAGE>

                  42-2.19  U S WEST will work cooperatively with other local
                           service providers to establish the Western Region
                           Number Portability Administration Center / Service
                           Management System (SMS). The SMS shall be
                           administered by a neutral third party to provide for
                           the efficient porting of numbers between carriers.
                           There must be one (1) exclusive NPAC per portability
                           State or region, and U S WEST shall provide all
                           information uploads and downloads regarding ported
                           numbers to/from, respectively, the exclusive NPAC.
                           U S WEST and Pac-West shall cooperate to facilitate
                           the expeditious deployment of PNP through the process
                           prescribed by the FCC, including, but not limited to,
                           participation in the selection of a neutral third
                           party and development of SMS, as well as SMS testing
                           for effective procedures, electronic system
                           interfaces, and overall readiness for use consistent
                           with that specified for provisioning in this
                           Agreement.

         42.3     Requirements for INP and NP

                  42.3.1   (intentionally left blank for numbering consistency)

                  42.3.2   Cut-Over Process

                           The Parties shall cooperate in the process of porting
                           numbers from one carrier to another so as to limit
                           service outage for the ported subscriber. This shall
                           include, but not be limited to, each Party updating
                           its respective network element translations within
                           fifteen (15) minutes following notification by the
                           industry SMS, or ported-to local service provider,
                           and deploying such temporary translations as may be
                           required to minimize service outage, e.g.,
                           unconditional triggers. In addition, Pac-West shall
                           have the right to determine who initiates the order
                           for INP in specific cut-over situations. The time
                           frames in this paragraph shall be pursuant to Generic
                           Requirements for SCP Application and GTT Function for
                           Number Portability, Issue 0.99, January 6, 1997 and
                           subsequent versions which may be adopted from time to
                           time. The Parties shall cooperate to review, and, if
                           necessary, adjust the above time frame based on their
                           actual experiences.

                  42.3.3   Testing

                           U S WEST and Pac-West shall cooperate in conducting
                           Pac-West's testing to ensure interconnectivity
                           between systems. U S WEST shall inform Pac-West of
                           any system updates that may affect the Pac-West
                           network and U S WEST shall, at Pac-Wests request,
                           perform tests to validate the operation of the
                           network. Additional testing requirements may apply as
                           specified by this Agreement

                  42.3.4   Engineering and Maintenance

                          (a)      U S WEST and Pac-West will cooperate to
                                   ensure that performance of trunking and
                                   signaling capacity is engineered and managed
                                   at levels which are at least the same level
                                   of service as provided by U S WEST to its
                                   subscribers and to ensure effective
                                   maintenance testing through activities such
                                   as routine testing practices, network trouble
                                   isolation processes and review of operational
                                   elements for translations, routing and
                                   network fault isolation.

                          (b)      Additional specific engineering and
                                   maintenance requirements shall apply as
                                   specified in this Agreement.

                                       47
<PAGE>

          42.3.5    Recording and Billing

                    The Parties shall provide each other with accurate billing
                    and subscriber account record exchange data necessary for
                    billing their subscribers whose numbers have been ported.

          42.3.6    Operator Services and Directory Assistance

                    With respect to operator services and directory assistance
                    associated with NP for Pac-West subscribers, U S WEST shall
                    provide the following:

                    (a)      While INP is deployed and prior to conversion to
                             PNP:

                         i.   The Parties acknowledge that technology, as of the
                              Effective Date of this Agreement, does not permit
                              the provision of BLV/BLI to ported numbers. When
                              such becomes available in the U S WEST network,
                              such technology shall be made available to
                              Pac-West.

                         ii.  U S WEST shall allow Pac-West to order
                              provisioning of Telephone Line Number (TLN)
                              calling cards and Billed Number Screening (BNS),
                              in its LIDB, for ported numbers, as specified by
                              Pac-West. U S WEST shall continue to allow
                              Pac-West access to its LIDB. Other LIDB provisions
                              are specified in this Agreement

                         iii. Where U S WEST has control of Directory Listings
                              for NXX codes containing ported numbers, U S WEST
                              shall maintain entries for ported numbers as
                              specified by Pac-West in accordance with the
                              Listings Section of this Agreement.

                    (b)      When PNP is in place:

                         i.   The provisions in Section 42.3.6 preceding, shall
                              apply when PNP is in place.

                         ii.  If Integrated Services Digital Network User Part
                              (ISUP) signaling is used, U S WEST shall provide
                              the Jurisdiction Information Parameter in the SS7
                              Initial Address Message. (See Generic Switching
                              and Signaling Requirements for Number Portability,
                              Issue 1.0, February 12, 1996 (Editor -Lucent
                              Technologies, Inc.)).

                         iii. The Parties shall provide, when received from the
                              NPAC, a 10-Digit Global Tide Translation (GTT-)
                              Node for routing queries for TCAP-based operator
                              services (e.g., LIDB). The acquiring company will
                              provide the GTT to the NPAC. The NPAC will
                              distribute this information to the donor company
                              and all other parties.

                         iv.  U S WEST OSS shall meet all requirements specified
                              in "Generic Operator Services Switching
                              Requirements for Number Portability," Issue 1.1,
                              June 20, 1996, as updated from time to time.

                                       48
<PAGE>

43.      Dialing Parity

         43.1     The Parties shall provide dialing parity to each other as
                  required under Section 251 (b)(3) of the Act or state law or
                  regulation as appropriate. This Agreement does not impact
                  either Party's ability to default intraLATA toll via a
                  specific dialing pattern until otherwise required by the Act
                  or the Commission.

         43.2     U S WEST shall ensure that all Pac-West Customers experience
                  the same dialing panty as similarly-situated Customers of U S
                  WEST services, such that, for example, for all call types: (a)
                  an Pac-West Customer is not required to dial any greater
                  number of digits than a similarly-situated U S WEST Customer
                  and (b) the Pac-West Customer may retain its local telephone
                  number, so long as the Customer continues receiving service in
                  the same central office serving area.

44.      Directory Listings

         The publication of directories, Directory Listings, directory databases
         and associated related services shall be governed by the terms and
         conditions contained within Docket No. UT-941464 & UT-94146. To the
         extent not inconsistent therewith, the following Section 44 shall
         apply.(27)

         44.1     Directory Listings General Requirements

                  44.1.1   This Section 44 pertains to Directory Listings
                           requirements for the appearance of Pac-West end user
                           Directory Listings in directory assistance service or
                           directory product.

                  44.1.2   U S WEST shall include in its master Directory
                           Listing database all list information for Pac-West
                           Customers.

                  44.1.3   U S WEST shall not sell or license, nor allow any
                           third party, the use of Pac-West Customer Listings
                           without the prior written consent of Pac-West U S
                           WEST shall not disclose nor allow any third party to
                           disclose non-listed name or address information for
                           any purpose other than what may be necessary to
                           complete directory distribution.

                  44.1.4   Pac-West Customer Listings in the U S WEST Directory
                           Assistance database and Directory Listing database
                           shall be co-mingled with Listings of U S WEST and
                           other CLEC Customers.

                  44.1.5   Each Pac-West Customer Primary Listing shall be
                           provided, at no charge, the same white page listings
                           that U S WEST provides its Customers.

                  44.1.6   Each Pac-West business Customer Primary Listing shall
                           be provided, at no charge, the same yellow page
                           classified courtesy Listings that U S WEST provides
                           its Customers.

----------

(27)  Per Order at page 32, Issues 66-67.

                                       40
<PAGE>

                  44.1.7    U S WEST shall also ensure that its directory
                            publisher publishes all types of Listings for
                            Pac-West Customers that are available to U S WEST
                            Customers under the same terms, and conditions,
                            including but not limited to:

                            (a)     Foreign Listings
                            (b)     Reference Listings
                            (c)     Information Listings
                            (d)     Alternate call Listings
                            (e)     Multi-line Listings
                            (f)     Multi-line/Multi-owner Listings

                  44.1.8    Pac-West end user Listings properly identified by
                            Pac-West as Local, State, and Federal government
                            Listings shall be appropriately coded in the U S
                            WEST Directory Listing database. U S WEST will
                            provide government code information to Pac-West.

                  44.1.9    The listing and handling of Pac-West listed and
                            non-listed telephone numbers shall be at least at
                            panty with that provided by U S WEST to its own
                            Customers, including Pac-West customers who have
                            ported telephone numbers from U S WEST.

                  44.1.10   U S WEST shall ensure that its directory publisher
                            publishes Pac-West sales, service, billing, and
                            repair information for business and residential
                            Customers, along with the Pac-West logo in the
                            customer information/guide pages of each directory
                            at no charge to Pac-West

                  44.1-11    U S WEST is responsible for maintaining Listings,
                             including entering, changing, correcting,
                             rearranging and removing listings in accordance
                             with Pac-West orders. Upon request, and at least
                             one (1) month prior to a given white page directory
                             close, a method of reviewing and correcting
                             Listings will be provided.

                  44.1.12    (Deleted per Arbitrator's Recommendations.(28)

                  44.1.13    U S WEST will permit Pac-West Customers to place
                             orders for Premium Listings and privacy listings.
                             Pac-West will be charged for Premium Listings and
                             privacy listings at U S WEST's general exchange
                             tariff rates less the wholesale discount rate. The
                             Premium and privacy listing charges will be billed
                             to Pac-West and itemized at the telephone number
                             sub-account level.

                  44.1.14    U S WEST shall ensure a third party distributes
                             appropriate alphabetical and classified directories
                             (white and yellow pages) and recycling services to
                             Pac-West Customers at parity with U S WEST end
                             users, including providing directories, a) upon
                             establishment of new service; b) during annual mass
                             distribution; and c) upon Customer request.

                  44.1.15    At no charge, U S WEST shall ensure that its
                             directory publisher prominently indicates on each
                             directory cover that the directory includes the
                             Listings of all Customers without regard to which
                             company serves them.(29)

----------

28    Per Recommendations at page 10, Issue 135.
29    Per Recommendations at page 10, Issue 135. Modified per Approval at page
      5, paragraph 6 and page 13, paragraph D.

                                       50
<PAGE>

         44.1.16  U S WEST will provide the option of having Centrex users
                  listed when Pa purchases Centrex-type services for resale.

44.2     Scope

         44-2.1   Pac-West grants U S WEST a non-exclusive license to
                  incorporate Listings information into its Directory Assistance
                  database. Pa-West shall select-one of two options for U S
                  WEST's use of Listings and dissemination of Listings to third
                  parties.

                  EITHER:

                  a.    Treat the Same as U S WEST's end user Listings - No
                        prior authorization is needed for U S WEST to release
                        Listings to directory publishers or other third parties.
                        U S WEST will incorporate Listings information in all
                        existing and future Directory Assistance applications
                        developed by U S WEST. Pac-West authorizes U S WEST to
                        sell and otherwise make Listings available to directory
                        publishers. Listings shall not be provided or sold in
                        such a manner as to segregate end users by carrier.

                  OR:

                  b.    Restrict to U S WEST's Directory Assistance Service -
                        Prior authorization required from Pac-West for all other
                        uses. Pac-West makes its own, separate agreements with U
                        S WEST, third Parties and directory publishers for all
                        uses of its Listings beyond DA. U S WEST will sell or
                        provide Listings to directory publishers (including U S
                        WEST's publisher affiliate) or other third Parties only
                        after the third party presents proof of Pac-West's
                        authorization. Listings shall not be provided or sold in
                        such a manner as to segregate end users by carrier.

                  c.    U S WEST shall be entitled to retain all revenue
                        associated with any sales pursuant to subparagraphs (a)
                        and (b) above.(30)

         44.2.2   To the extent that state tariffs limit U S WEST's liability
                  with regard to Listings, the applicable state tariff(s) is
                  incorporated herein and supersedes Section 19, "Limitation of
                  Liability", of this Agreement with respect to Listings only.
                  Nothing contained in this section shall limit either Party's
                  liability to the other for willful or intentional misconduct,
                  including gross negligence.(31)

44.3     U S WEST will take reasonable steps in accordance with industry
         practices to accommodate non-published and non-listed Listings provided
         that Pac-West has supplied U S WEST the necessary privacy indicators on
         such Listings.

44.4     Pac-West Responsibilities

         44-4.1   Pac-West agrees to provide to U S WEST its end user names,
                  addresses and telephone numbers in a standard mechanized
                  format, as utilized by U S WEST.

----------

30   Per Recommendations at page 11, Issue 62.
31   Per Recommendations at page 12, Issue 63.

                                       51
<PAGE>

44.4.2   Pac-West will supply its ACNA/CIC or CLCC/OCN, as appropriate. with
         each order to provide U S WEST the means of identifying listings
         ownership.

44.4.3   Pac-West represents the end user information provided to U S WEST is
         accurate and correct. Pac-West further represents that it has reviewed
         all listings provided to U S WEST, including end user requested
         restrictions on use such as non-published and non-listed

      44.4.4   Pac-West is responsible for dealings with, and on behalf of,
               Pac-West's end users on the following subjects:

               a)   All end user account activity, e.g., end user queries and
                    complaints.

               b)   All account maintenance activity, e.a., additions, changes.
                    issuance of orders for Listings to U S WEST.

               c)   Determining privacy requirements and accurately coding the
                    privacy indicators for Pac-West's end user information. If
                    end user information provided by Pac-West to U S WEST does
                    not contain a privacy indicator, no privacy restrictions
                    will apply.

45.      Directories

         The publication of directories, Directory Listings, directory databases
         and associated related services shall be governed by the terms and
         conditions contained within Docket No. UT-941464 & UT-94146.(32)

46.      U S WEST Dex Issues

         U S WEST and Pac-West agree that certain issues, such as yellow page
         advertising, directory distribution, access to call guide pages, and
         yellow page listings, will be the subject of negotiations between
         Pac-West and directory publishers, including U S WEST Dex. U S WEST
         acknowledges that Pac-West may request U S WEST to facilitate
         discussions between Pac-West and U S WEST Dex.

47.      Access to Poles, Ducts, Conduits, and Rights of Way

         47.1     U S WEST shall provide Pac-West equal and non-discriminatory
                  access to poles, space, ducts, conduit, entrance facilities,
                  ROW and any other pathways on terms and conditions equal to
                  that provided by U S WEST to itself or to any other Person.
                  Further, U S WEST shall not preclude or delay allocation of
                  these facilities to Pac-West because of the potential needs of
                  itself or of any other Person except a maintenance spare may
                  be retained as described below.(33)

         47.2     U S WEST warrants that it will provide to Pac-West
                  nondiscriminatory access to poles, pole attachments, ducts,
                  inner ducts, conduits, building

----------

32   Per Order at page 32, Issues 66-67.
33   Per Order at pages 28-29, Issues 53-54.

                                       52
<PAGE>

         entrance facilities, building entrance links, equipment rooms, remote
         terminals, cable vaults, telephone closets, building risers, ROW, and
         other pathways owned or controlled by U S WEST, using capacity
         currently available or that can be made available. U S WEST shall have
         the full burden of proving that such access is not technically
         feasible. To the extent U S WEST proves infeasibility, U S WEST shall
         be required to provide to Pac-West alternative suitable access which
         will not impair Pac-West's ability to provide its Telecommunications
         Services. Such alternative access shall be technically equivalent to
         the requested access and shall be subject to the same terms, conditions
         and price as the requested access.(34)

47.3     Definitions

         "Poles, ducts, conduits and ROW" refer to all the physical facilities
         and legal rights which provide for access to pathways across public and
         private property. These include poles, pole attachments, ducts,
         innerducts, conduits, building entrance facilities, building entrance
         links, equipment rooms, remote terminals, cable vaults, telephone
         closets, building risers, rights-of-way, or any other requirements
         needed to create pathways. These pathways may run over, under, across
         or through streets, traverse private property, or enter multi-unit
         buildings. A Right-of-Way ("ROW") is the right to use the land or other
         property owned, leased, or controlled by any means by U S WEST to place
         poles, ducts, conduits and ROW or to provide passage to access such
         poles, ducts, conduits and ROW. A ROW may run under, on, or above
         public or private property (including air space above public or private
         property) and shall include the right to use discrete space in
         buildings, building complexes, or other locations.

47.4     Requirements

         47.4.1   U S WEST shall make poles, ducts, conduits and ROW available
                  to Pac-West upon receipt of a request for use within the time
                  periods provided in this Section, providing all information
                  necessary to implement such a use and containing rates, terms
                  and conditions, including, but not limited to, maintenance and
                  use in accordance with this Agreement and at least equal to
                  those which it affords itself, its Affiliates and others.
                  Other users of these facilities, including U S WEST, shall not
                  interfere with the availability or use of the facilities by
                  Pac-West.

         47.4.2   Within ten (10) Business Days of Pac-West's request for
                  specific poles, ducts, conduits, or ROW, U S WEST shall
                  provide any information in its possession or available to it
                  regarding the environmental conditions of such requested
                  poles, ducts, conduits or ROW route or location including, but
                  not limited to, the existence and condition of asbestos, lead
                  paint, hazardous substance contamination, or radon.
                  Information is considered "available" under this Agreement if
                  it is in U S WEST's possession or files, or the possession of
                  an agent, contractor, employee, lessor, or tenant of U S
                  WEST's that holds such information on U S WEST's behalf. If
                  the poles, ducts, conduits or ROW contain such environmental
                  contamination, making the placement of equipment hazardous, U
                  S WEST shall offer alternative poles, ducts, conduits or ROW
                  for Pac-West's consideration. U S WEST shall allow Pac-West to
                  perform any environmental site

----------

34  Per Order at page 29, Issue 55.

                                       53
<PAGE>

                    investigations, including, but not limited to, Phase I and
                    Phase 11 environmental site assessments, as Pac-West may
                    deem to be necessary.

          47.4.3    U S WEST shall not prevent or delay any third party
                    assignment of ROW to Pac-West.

          47.4.4    U S WEST shall offer the use of such poles, ducts, conduits
                    and ROW it has obtained from a third party to Pac-West, to
                    the extent such agreement does not prohibit U S WEST from
                    granting such rights to Pac-West They shall be offered to
                    Pac-West on the same terms as are offered to U S WEST.(35) U
                    S WEST shall exercise its eminent domain power and assist
                    Pac-West in obtaining licenses when necessary to accommodate
                    Pac-West's request for access to ROW.(36) If U S WEST
                    exercises its eminent domain authority on behalf of Pac-West
                    at Pac-West's request, then Pac-West shall reimburse U S
                    WEST for U S WEST's reasonable costs, if any, incurred as a
                    result of such exercise of its eminent domain authority.

          47.4.5    (Intentionally left blank for numbering consistency)

          47.4.6    U S WEST shall not attach, or permit other entities to
                    attach facilities on, within or overlashed to existing
                    Pac-West facilities without Pac-West's prior written
                    consent.

          47.4.7    U S WEST agrees to provide current detailed engineering and
                    other plant records and drawings for specific requests for
                    poles, ducts, conduits and ROW, including facility route
                    maps at 2 City level, and the fees and expenses incurred in
                    providing such records and drawings, on the earlier of
                    twenty (20) Business Days from Pac-West's request or the
                    time within which U S WEST provides this information to
                    itself or any other Person. Such information shall be of
                    equal type and quality as that which is available to U S
                    WEST's own engineering and operations staff. U S WEST shall
                    also allow personnel designated by Pac-West to jointly
                    examine with U S WEST personnel, at no cost to Pac-West for
                    such personnel, such engineering records and drawings for a
                    specific routing at U S WEST Central Offices and U S WEST
                    Engineering Offices upon ten (10) days' written notice to U
                    S WEST. U S WEST acknowledges that the request for
                    information and the subject matter related to the request
                    made under this Section shall be treated as Proprietary
                    Information.

          47.4.8    U S WEST shall provide to Pac-West a Single Point of Contact
                    for negotiating all structure lease and ROW Agreements.

          47.4.9    U S WEST shall provide information regarding the
                    availability and condition of poles, ducts, conduits and ROW
                    within five (5) business days of Pac-West s request if the
                    information then exists in U S WEST's records (a records
                    based answer) and within twenty (20) Business Days of
                    Pac-West's request if U S WEST must physically examine the
                    poles, ducts, conduits and ROW (a field based answer)
                    ("Request"). Pac-West shall have the option to be present at
                    the field based survey and U S WEST shall provide Pac-West
                    at least twenty-four (24) hours' notice prior to the start
                    of such field survey. During and after this period, U S WEST
                    shall allow Pac-West personnel to enter manholes and
                    equipment

----------

35      Per Order at pages 29-30, Issue 56.
36      Per Order at pages 29-30, Issue 56.
<PAGE>

                    Spaces and view pole structures to inspect such structures
                    in order to confirm usability or assess the condition of the
                    structure. U S WEST shall send Pac-West a written notice
                    confirming availability pursuant to the Request, within such
                    twenty (20) day period ("Confirmation").

        47.4.10     For the period beginning at the time of the Request and
                    ending ninety (90) days following Confirmation, U S WEST
                    shall reserve such poles, ducts, conduits and ROW for
                    Pac-West and shall not allow any use thereof by any Party,
                    including U S WEST. Pac-West shall elect whether or not to
                    accept such poles, ducts, conduits and ROW within the ninety
                    (90) day period following Confirmation. Pac-
                    West may accept such facilities by sending written notice to
                    U S WEST ("Acceptance"). If Pac-West requests reservation of
                    poles, ducts, conduits or ROW, U S WEST may charge a
                    reservation fee in an amount mutually agreed upon by the
                    Parties. Pac-West's obligation to pay a reservation fee
                    shall begin on the date of the Confirmation. If the Parties
                    are unable to agree on a reasonable reservation fee, the fee
                    shall be established pursuant to the dispute resolution
                    process in Section 27 of Part A of this Agreement.(37)

        47.4.11     Reservation. After Acceptance by Pac-West, Pac-West shall
                   have six (6) months to begin attachment and/or installation
                   of its facilities to the poles, ducts, conduits and ROW or
                   request U S WEST to begin make ready or other construction
                   activities. Any such construction, installation or make ready
                   by Pac-West shall be completed by the end of one (1) year
                   after Acceptance. Pac-West shall not be in default of the
                   6-month or 1 -year requirement above if such default is
                   caused in any way by any action, inaction or delay on the
                   part of U S WEST or its Affiliates or subsidiaries.

        47.4.12    Make Ready. U S WEST shall rearrange, modify and/or make
                   ready existing poles, ducts, conduits and ROW where necessary
                   and feasible to provide space for Pac-West's requirements.
                   Subject to the requirements above, the Parties shall endeavor
                   to mutually agree upon the time frame for the completion of
                   such work within five (5) days following Pac-West's request;
                   provided, however, that any such work required to be
                   performed by U S WEST shall be completed within sixty (60)
                   days or a reasonable period of time based on standard
                   construction intervals in the industry, unless otherwise
                   agreed by Pac-West in writing.

        47.4.13    New Construction. After Acceptance, U S WEST shall complete
                   any new construction, relocation or installation of poles,
                   ducts, conduits or ROW required to be performed by U S WEST
                   or any U S WEST construction, relocation or installation
                   requested by Pac-West within a reasonable period of time
                   based on standard construction intervals in the industry or
                   sixty (60) days after obtaining all governmental authority or
                   permits necessary to complete such construction, relocation
                   or installation. If U S WEST anticipates that construction,
                   relocation or installation will go beyond standard industry
                   intervals or the sixty (60) day period, U S WEST shall
                   immediately notify Pac-West and the Parties shall mutually
                   agree on a completion date.

        47.4.14    Pac-West shall begin payment for the use of newly constructed
                   poles, ducts, conduits, and ROW upon completion of such
                   construction and installation and

----------

37  Per Recommendations at page 16, Issue 70.

                                       55
<PAGE>

                    confirmation by appropriate testing methods that the
                    facilities are in a condition ready to operate in Pac-West's
                    network or upon use (other than for testing) by Pac-West,
                    whichever is earlier.

          47.4.15   Pac-West shall make payment for construction, relocation,
                    rearrangements. modifications and make ready in accordance
                    with Section 3.5 of Attachment 1 of this Agreement.

          47.4.16  Pac-West shall begin payment for the use of existing poles,
                   ducts, conduits and ROW upon the date of its timely
                   Acceptance. If Pac-West fails to send a timely Acceptance,
                   its reservation shall be released.(38)

          47.4.17  Pac-West may, at its option, install its facilities on poles,
                   ducts, conduits and ROW and use Pac-West or Pac-West
                   designated personnel to attach its equipment to such U S WEST
                   poles, ducts, conduits and ROW.

          47.4.18  If available, U S WEST shall provide Pac-West space in
                   manholes for racking and storage of cable and other materials
                   as requested by Pac-West.

          47.4.19  U S WEST shall rearrange, modify and/or make ready any
                   conduit system or poles with retired cable by removing such
                   retired cable from conduit systems or poles to allow for the
                   efficient use of conduit space and pole space. U S WEST shall
                   take all reasonable steps to expand its facilities to
                   accommodate Pac-West's request, and shall do so in accordance
                   with the time frames set forth in this Section 47.(39) Before
                   denying access based on a lack of capacity, U S WEST must
                   explore potential accommodations with Pac-West

          47.4.20  Where U S WEST has innerducts which are not, at that time,
                   being used or are not reserved as emergency or maintenance
                   spare in accordance with FCC rules and regulations, U S WEST
                   shall offer such ducts for Pac-West's use. U S WEST shall not
                   reserve more than one inner duct in any conduit cross section
                   for emergency purposes. Where only two inner ducts remain
                   available (including an emergency spare), U S WEST shall
                   offer Pac-West the use of at least one inner duct.(40)

          47.4.21  Where a spare innerduct does not exist, U S WEST shall allow
                   Pac-West to install an innerduct in U S WEST conduit, at
                   Pac-West's cost and expense. U S WEST must review and approve
                   any installation of inner duct in any U S WEST's duct prior
                   to the start of construction. Such approval shall not be
                   unreasonably delayed, withheld or conditioned. Pac-West shall
                   provide notice to U S WEST of any work activity not less than
                   twenty-four (24) hours prior to the start of construction.

          47.4.22  Where U S WEST has any ownership or other rights to ROW to
                   buildings or building complexes, or within buildings or
                   building complexes, U S WEST shall offer such ROW to Pac-West

----------

38   Per Recommendations at pages 16-17, Issue 155.
39   Per Recommendations at page 17, Issue 156.
40    Per Order at page 29, Issue 55.

                                       56
<PAGE>

                           (a)      Subject to the approval of the building
                                    owner, if required, the right to use any
                                    available space owned or controlled by U S
                                    WEST in the building or building complex to
                                    install Pac-West equipment and facilities;

                           (b)      Subject to the approval of the building
                                    owner, if required, ingress and egress to
                                    such space; and

                           (c)      Subject to the approval of the building
                                    owner, if required, the right to use
                                    electrical power at parity with U S WEST's
                                    rights to such power.

                  47.4.23  Whenever U S WEST intends to modify or alter any
                           poles, ducts, conduits or ROW which contain
                           Pac-West's facilities. U S WEST shall provide written
                           notification of such action to Pac-West so that
                           Pac-West may have a reasonable opportunity to add to
                           or modify its facilities. Pac-West shall advise U S
                           WEST, in writing, of its intentions to add or modify
                           the facilities within fifteen (15) Business Days of U
                           S WEST's notification. If Pac-West adds to or
                           modifies its facilities according to this paragraph,
                           Pac-West shall bear a proportionate share of the
                           costs incurred by U S WEST in making such facilities
                           accessible.

                  47.4.24  Pac-West shall not be required to bear any of the
                           costs of rearranging or replacing its facilities, if
                           such rearrangement or replacement is required as a
                           result of an additional attachment or the
                           modification of an existing attachment sought by any
                           entity other than Pac-West, including U S WEST.

                  47.4.25  U S WEST shall maintain the poles, ducts, conduits
                           and ROW at its sole cost. Pac-West shall maintain its
                           own facilities installed within the poles, ducts,
                           conduits and ROW at its sole cost In the event of an
                           emergency, U S WEST shall begin repair of its
                           facilities containing Pac-West's facilities within a
                           reasonable time frame based on industry standards or
                           a time frame requested by Pac-West. If U S WEST
                           cannot begin repair within the requested time frame,
                           upon notice and approval of U S WEST, which approval
                           shall not be unreasonably withheld, Pac-West may
                           begin such repairs without the presence of U S WEST
                           personnel. Pac-West may climb poles and enter the
                           manholes, handholds, conduits and equipment spaces
                           containing U S WEST's facilities in order to perform
                           such emergency maintenance, but only until such time
                           as qualified personnel of U S WEST arrives ready to
                           continue such repairs. For both emergency and
                           non-emergency repairs, Pac-West may use spare
                           innerduct or conduits, including the innerduct or
                           conduit designated by U S WEST as emergency spare for
                           maintenance purposes; provided, however, that
                           Pac-West may only use such spare conduit or innerduct
                           for a maximum period of ninety (90) days.

                  47.4.26  In the event of a relocation necessitated by a
                           governmental entity exercising the power of eminent
                           domain, when such relocation is not reimbursable, all
                           parties shall share pro rata in costs for relocating
                           the base conduit or poles and shall each pay its own
                           cost of cable and installation of the facilities in
                           the newly rebuilt U S WEST poles, ducts, conduits and
                           ROW.

48.      Bona Fide Request Process for Further Unbundling(41)

----------

41  Per Order at pages 9-10, Issue 16.

                                       57
<PAGE>

48.1     Any request for Interconnection or access to an unbundled Network
         Element not already available via price lists, tariff, or as described
         herein shall be treated as a "Request" under this Section.

48.2     U S WEST shall use the Bona Fide Request ("BFR") process as described
         in this Section 48, to determine the technical feasibility of the
         requested Interconnection or Network Element(s) and, for those items
         found to be technically feasible, to provide the terms and timetable
         for providing the requested items. Additionally, elements, services and
         functions which are materially or substantially different from those
         services, elements or functions already provided by U S WEST to itself,
         its Affiliates, Customers, or end users may, at the discretion of
         Pac-West, be subject to this BFR process.

48.3     A Request shall be submitted in writing and, at a minimum, shall
         include: (a) a complete and accurate technical description of each
         requested Network Element or Interconnection; (b) the desired interface
         specifications; (c) a statement that the Interconnection or Network
         Element will be used to provide a Telecommunications Service; (d) the
         quantity requested; (e) the location(s) requested; and (f) whether
         Pac-West wants the requested item(s) and terms made generally
         available. Pac-West may designate a Request as Confidential.

48.4     Within forty-eight (48) hours of receipt of a Request, U S WEST shall
         acknowledge receipt of the Request and review such Request for initial
         compliance with Subsection 48.3 above. In its acknowledgment, U S WEST
         shall advise Pac-West of any missing information reasonably necessary
         to move the Request to the preliminary analysis described in Subsection
         48.5 below.

48.5     Unless otherwise agreed to by the Parties, within thirty (30) calendar
         days of its receipt of the Request and all information necessary to
         process it, U S WEST shall provide to Pac-West a preliminary analysis
         of the Request As reasonably requested by Pac-West, U S WEST agrees to
         provide status updates to Pac-West U S WEST will notify Pac-West if the
         quote preparation fee, if any, will exceed $5,000. Pac-West will
         approve the continuation of the development of the quote prior to U S
         WEST incurring any reasonable additional expenses. The preliminary
         analysis shall specify whether or not the requested Interconnection or
         access to an unbundled Network Element is technically feasible and
         otherwise qualifies as a Network Element or Interconnection as defined
         under the Act

                  48.5.1   If U S WEST determines during the thirty (30) day
                           period that a Request is not technically feasible or
                           that the Request otherwise does not qualify as a
                           Network Element or Interconnection required to be
                           provided under the Act, U S WEST shall so advise
                           Pac-West as soon as reasonably possible of that fact,
                           and promptly provide a written report setting forth
                           the basis for its conclusion but in no case later
                           than ten (10) calendar days after making such
                           determination.
<PAGE>

                  48.5.2   If U S WEST determines during the thirty (30) day
                           period that the Request is technically feasible and
                           otherwise qualifies under the Act, it shall notify
                           Pac-West in writing of such determination no later
                           than ten (10) calendar days after making such
                           determination.

                  48.5.3   Unless otherwise agreed to by the Parties, as soon as
                           feasible, but no more than ninety (90) calendar days
                           after U S WEST notifies Pac-West that the Request is
                           technically feasible, U S WEST shall provide to
                           Pac-West a Request quote which will include, at a
                           minimum, a description of each Interconnection and
                           Network Element, the quantity to be provided, the
                           installation intervals (both initial and subsequent),
                           the impact on shared systems software interfaces, the
                           ordering process changes, the functionality
                           specifications, any interface specifications, and
                           either:

                           (a)      the applicable rates (recurring and
                                    nonrecurring), including the amortized
                                    development costs, as appropriate pursuant
                                    to Section 48.5.4 below, of the
                                    Interconnection or Network Element; or

                           (b)      the payment for development costs, as
                                    appropriate pursuant to Section 48.5.4
                                    below, of the Interconnection or Network
                                    Element and the applicable rates (recurring
                                    and nonrecurring), excluding the development
                                    costs.

                  48.5.4   The choice of using either option (a) or (b) above
                           shall be at U S WEST's sole discretion. A payment for
                           development cost, however, is appropriate only where
                           Pac-West is the only conceivable user of the
                           functionality (including consideration of U S WEST as
                           a potential user) or where the requested quantity is
                           insufficient to provide amortization.

         48.6     If U S WEST has used option (a) above in its Request quote,
                  then, within thirty (30) days of its receipt of the Request
                  quote, Pac-West must indicate its nonbinding interest in
                  purchasing the Interconnection or Network Element at the
                  stated quantities and rates, cancel it Request, or seek remedy
                  under the dispute resolution section of this Agreement

         48.7     If U S WEST has used option (b) above in its Request quote,
                  then, within thirty (30) days of its receipt of the Request
                  quote, Pac-West must either agree to pay the development costs
                  of the interconnection or Network Element, cancel its Request,
                  or seek remedy under the dispute resolution section of this
                  Agreement.

         48.8     If U S WEST has used option (b) in its Request quote and
                  Pac-West has accepted the quote, Pac-West may cancel the
                  Request at any time, but will pay U S WEST's reasonable
                  development costs of the Interconnection or Network Element up
                  to the date of cancellation.

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<PAGE>

         48.9     U S WEST will use reasonable efforts to determine the
                  technical feasibility and conformance with the Act of the
                  Request within the first thirty-two (32) days of receiving the
                  Request. In the event U S WEST has used option (b) above in
                  its Request quote and U S WEST later determines that the
                  Interconnection or Network Element requested in the Request is
                  not technically feasible or otherwise does not qualify under
                  the Act, U S WEST shall notify Pac-West within ten (10)
                  Business Days of making such determination and Pac-West shall
                  not owe any compensation to U S WEST in connection with the
                  Request. Any quotation preparation fees or development costs
                  paid by Pac-West to the time of such notification shall be
                  refunded by U S WEST.

         48.10    To the extent possible, U S WEST will utilize information from
                  previously developed BFRs to address similar arrangements in
                  order to shorten the response times for the currently
                  requested BFR. In the event Pac-West has submitted a Request
                  for an Interconnection or a Network Element and U S WEST
                  determines in accordance with the provisions of this Section
                  48 that the Request is technically feasible, the Parties agree
                  that Pac-West's subsequent request or order for the identical
                  type of Interconnection or Network Element shall not be
                  subject to the BFR process. To the extent U S WEST has
                  deployed an identical Network Element under a previous BFR, a
                  subsequent BFR is not required. For purposes of this Section
                  48.10, an "identical" request shall be one that is materially
                  identical to a previous request with respect to the
                  information provided pursuant to Subsections (a) through (e)
                  of Section 48.3 above.

         48.11    In the event of a dispute under this Section 48, the Parties
                  agree to seek expedited Commission resolution of the dispute,
                  to be completed within twenty (20) days of U S WEST's response
                  denying Pac-West's BFR, and in no event more than thirty (30)
                  days after the filing of Pac-West's petition. Alternatively,
                  the Parties may mutually agree to resolve any disputes under
                  this section through the dispute resolution process pursuant
                  to Section 27, Part A of this Agreement

         48.12    All time intervals within which a response is required from
                  one Party to another under this Section 48 are maximum time
                  intervals. The Parties agree that they will provide all
                  responses to the other Party as soon as the Party has the
                  information and analysis required to respond, even if the time
                  interval stated herein for a response is not over.

49.      Audit Process

         49.1     As used herein, "Audit' shall mean a comprehensive review of
                  services performed under this Agreement. Either Party (the
                  "Requesting Party") may perform up to three (3) Audits per
                  12-month period commencing with the Effective Date.

         49.2     Upon thirty (30) day's written notice by the Requesting Party
                  to the other Party (the "Audited Party"), the Requesting Party
                  shall have the right, through its authorized representative,
                  to make an Audit, during normal business hours, of any
                  records, accounts and processes which contain information
                  related to the services provided and performance standards

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<PAGE>

                  agreed to under this Agreement. Within the above-described
                  30-day period, the Parties shall reasonably agree upon the
                  scope of the Audit, the documents and processes to be
                  reviewed. and the time, place and manner in which the Audit
                  shall be performed. The Audited Party agrees to provide Audit
                  support, including appropriate access to and use of the
                  Audited Party's facilities (e.g., conference rooms.
                  telephones, copying machines).

         49.3     Each Party shall bear its own expenses in connection with the
                  conduct of the Audit. The reasonable cost of special data
                  extractions required by the Requesting Party to conduct the
                  Audit will be paid for by the Requesting Party. For purposes
                  of this Section 49.3, a "Special Data Extraction" shall mean
                  the creation of an output record or informational report (from
                  existing data files) that is not created in the normal course
                  of business. If any program is developed to the Requesting
                  Party's specifications and at the Requesting Party's expense,
                  the Requesting Party shall specify at the time of request
                  whether the program is to be retained by the Audited Party for
                  reuse for any subsequent Audit. Notwithstanding the foregoing,
                  the Audited Party shall pay all of the Requesting Party's
                  external expenses (including, without limitation, the fees of
                  any independent auditor), in the event an Audit results in an
                  adjustment in the charges or in any invoice paid or payable by
                  the Requesting Party hereunder in an amount that is, on an
                  annualized basis, more than the greater of (a) one percent (1
                  %) of the aggregate charges for all services purchased under
                  this Agreement or (b) $ 10,000.

         49.4     Adjustments, credits or payments shall be made and any
                  corrective action shall commence within thirty (30) days from
                  the Audited Party's receipt of the final audit report to
                  compensate for any errors or omissions which are disclosed by
                  such Audit and are agreed to by the Parties. The highest
                  interest rate allowable by law for commercial transactions
                  shall be assessed and shall be computed by compounding daily
                  from the time of the original due date of the amount of
                  dispute.

         49.5     Neither such right to examine and audit nor the right to
                  receive an adjustment shall be affected by any statement to
                  the contrary appearing on checks or otherwise.

         49.6     This Section 49 shall survive expiration or termination of
                  this Agreement for a period of two (2) years after expiration
                  or termination of this Agreement.

         49.7     All transactions under this Agreement which are over
                  thirty-six (36) months old are no longer subject to Audit.

         49.8     All information received or reviewed by the Requesting Party
                  or the independent auditor in connection with the Audit is to
                  be considered Proprietary Information as defined by this
                  Agreement The Audited Party reserves the right to require any
                  non-employee who is involved directly or indirectly in any
                  Audit or the resolution of its findings as described above to
                  execute a nondisclosure agreement satisfactory to the Audited
                  Party. To the extent an Audit involves access to information
                  of third parties, the Audited Party will aggregate such
                  competitors' data before release to the Requesting Party, to
                  insure the protection of the proprietary nature of information
                  of other competitors. To the extent a competitor is an
                  Affiliate of the Audited Party (including itself and its
                  subsidiaries), the Parties shall be allowed to examine such
                  Affiliate's disaggregated data, as required by reasonable
                  needs of the Audit.

         49.9     An "Examination" shall mean an inquiry reasonably requested by
                  either Party into a specific element of or process where the
                  requesting Party raises a dispute concerning services
                  performed by the other Party under this Agreement and such
                  dispute has not been resolved through the escalation process
                  described in this Agreement. Only that information that is
                  necessary to resolve the dispute in issue must.- be provided
                  in the

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<PAGE>

                  course of an Examination and the total time involved in an
                  Examination for each Party may not exceed three (3) people for
                  three (3) days and no more than 10. 000 pages of documents may
                  be reviewed. Appropriate provisions of Section 49 that apply
                  to Audits shall also apply to Examinations, except that either
                  Party may conduct only a total of nine (9) Examinations and
                  Audits per year, with a maximum of three (3) Audits per year.

50.      Miscellaneous Services

         50.1     Basic 911 and E911 General Requirements

                  50.1.1   Basic 911 and E911 provides a caller access to the
                           appropriate emergency service bureau by dialing a
                           3-digit universal telephone number (911). Basic 911
                           and E91 1 access from Local Switching shall be
                           provided to Pac-West in accordance with the
                           following:

                  50.1.2   Each Party will be responsible for those portions of
                           the 911 System for which it has reasonable control,
                           including any necessary maintenance to each Party's
                           portion of the 911 System.

                  50.1.3   E911 shall provide additional routing flexibility for
                           911 calls. E911 shall use Customer data, contained in
                           the Automatic Location Identification/Data Management
                           System ("ALI/DMS"), to determine to which Public
                           Safety Answering Point ("PSAP") to route the call.

                  50.1.4   If available in the U S WEST network, U S WEST shall
                           offer a third type of 911 service, S91 1. All
                           requirements for E91 1 also apply to S91 1 with the
                           exception of the type of signaling used on the
                           interconnection trunks from the local switch to the
                           E911 Tandem.

                  50.1.5   Basic 911 and E911 functions provided to Pac-West
                           shall be at least at parity with the support and
                           services that U S WEST provides to its Customers for
                           such similar functionality.

                  50.1.6   Basic 911 and E911 access from Local Switching shall
                           be provided to Pac-West in accordance with the
                           following:

                           50.1.6.1     U S WEST shall conform to all state
                                        regulations concerning emergency
                                        services.

                           50.1.6.2     For E911 provided to resold lines or in
                                        association with unbundled switching, U
                                        S WEST shall use its service order
                                        process to update and maintain Customer
                                        information in the ALI/DMS data base.
                                        Through this process, U S WEST shall
                                        provide and validate Customer
                                        information resident or entered into the
                                        ALI/DMS data base.

                  50.1.7   U S WEST shall provide for over-flow 911 traffic
                           consistent with U S WEST policy and procedure.

                  50-1.8   Basic 911 and E911 access from the Pac-West local
                           switch shall be provided to Pac-West in accordance
                           with the following:

                           50.1.8.1      If required by Pac-West, U S WEST shall
                                         interconnect direct trunks from the
                                         Pac-West network to the E91 1 Tandem
                                         for connection to the

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<PAGE>

                                        PSAP. Such trunks to the E911 Tandem may
                                        alternatively be provided by Pac-West.

                         50.1.8.2       In government jurisdictions where U S
                                        WEST has obligations under existing
                                        agreements as the primary provider of
                                        the 911 System to the county, Pac-West
                                        shall participate in the provision of
                                        the 911 System as follows:

                                        (a)   Each Party shall be responsible
                                              for those portions of the 911
                                              System for which it has control,
                                              including any necessary
                                              maintenance to each Party's
                                              portion of the 911 System.

                                        (b)   U S WEST shall be responsible for
                                              maintaining the E-911 database.

                         50.1.8.3       If a third party is the primary service
                                        provider to a government agency,
                                        Pac-West shall negotiate separately with
                                        such third party with regard to the
                                        provision of 911 service to the agency.
                                        All relations between such third party
                                        and Pac-West are totally separate from
                                        this Agreement and U S WEST makes no
                                        representations on behalf of the third
                                        party.

                          50.1.8.4      If Pac-West or an Affiliate is the
                                        primary service provider to a government
                                        agency, Pac-West and U S WEST shall
                                        negotiate the specific provisions
                                        necessary for providing 911 service to
                                        the agency and shall include such
                                        provisions in an amendment to this
                                        Agreement.

                          50.1.8.5      Interconnection and database access
                                        shall be priced as specified in
                                        Attachment 1 to this Agreement or at any
                                        rate charged to other interconnected
                                        carriers, whichever is lower.

                          50.1.8.6      Pac-West will separately negotiate with
                                        each county regarding the collection and
                                        reimbursement to the county of
                                        applicable Customer taxes for 911
                                        service.

                          50.1.8.7      U S WEST shall comply with established,
                                        competitively neutral intervals for
                                        installation of facilities, including
                                        any collocation facilities, diversity
                                        requirements, etc.

                          50.1.8.8      In a resale situation, where it may be
                                        appropriate for U S WEST to update the
                                        ALI database, U S WEST shall update such
                                        database with Pac-West data in an
                                        interval no less than is experienced by
                                        U S WEST Customers, or than for other
                                        carriers, whichever is faster, at no
                                        additional cost.

                  50.1.9  The following are Basic 911 and E911 Database
                          Requirements:

                          50.1.9.1      The ALI database shall be managed by U S
                                        WEST, but is 'the property of U S WEST
                                        and any participating telephone company
                                        and CLEC for those records provided by
                                        the company.

                          50.1.9.2      U S WEST, or its agent, will be
                                        responsible for maintaining the E91 I
                                        Data Base. U S WEST, or its agent, will
                                        provide a copy of the Master Street
                                        Address Guide ("MSAG"), and periodic
                                        Updates, to Pac-West.

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<PAGE>

                           50.1.9.3     Copies of the MSAG shall be provided
                                        within twenty-one (21) calendar days
                                        from the time requested and shall be
                                        provided on diskette, magnetic tape, or
                                        in a format suitable for use with
                                        desktop computers.

                           50.1.9.4     Pac-West assumes all responsibility for
                                        the accuracy of the data that Pac-West
                                        provides to U S WEST for MSAG
                                        preparation and E911 Database operation.

                           50.1.9.5     Pac-West shall be solely responsible for
                                        providing Pac-West database records to
                                        U S WEST for inclusion in U S WEST'; ALI
                                        database on a timely basis.

                           50.1.9.6     Pac-West will provide end user data to
                                        the U S WEST ALI database that are MSAG
                                        valid.

                           50.1.9.7     Pac-West will update its end user
                                        records provided to the U S WEST ALI
                                        database to agree with the 911 MSAG
                                        standards for its service areas.

                           50.1.9.8     U S WEST and Pac-West shall arrange for
                                        the automated input and periodic
                                        updating of the E911 database
                                        information related to Pac-West end
                                        users for resold lines in accordance
                                        with Section 10. 1 of Attachment 2 to
                                        this Agreement. Pac-West may request,
                                        through the BFR process, similar
                                        arrangements for Pac-West customers
                                        served on a non-resale basis. U S WEST
                                        will furnish Pac-West any variations 'to
                                        NENA recommendations required for ALI
                                        data base input. The cost of magnetic
                                        tape transfer shall be borne by
                                        Pac-West.

                           50.1.9.9     U S WEST and Pac-West shall arrange for
                                        the automated input and periodic
                                        updating of the E911 database
                                        information related to Pac-West end
                                        users. For resold services, U S WEST
                                        shall work cooperatively with Pac-West
                                        to ensure the accuracy of the data
                                        transfer by verifying it against the
                                        MSAG. For Pac-West's customers served by
                                        unbundled Network Elements or through
                                        Pac-West's own facilities, Pac-West
                                        shall ensure the accuracy of its 911
                                        data by verifying it against the MSAG.

                           50.1.9.10    Pac-West shall assign an E911 database
                                        coordinator charged with the
                                        responsibility of forwarding Pac-West
                                        end user ALI record information to U S
                                        WEST or via a third-party entity,
                                        charged with the responsibility of ALI
                                        record transfer. Pac-West assumes all
                                        responsibility for the accuracy of the
                                        data that Pac-West provides to U S WEST.

                           50.1.9.11    The Parties shall maintain a single
                                        point of contact to coordinate all E91 1
                                        activities under this Agreement.

                           50.1.9.12    For resold services, Pac-West shall
                                        provide information on new Customers to
                                        U S WEST within one (1) Business Day of
                                        the order completion. U S WEST shall
                                        update the database within two (2)
                                        Business Days of receiving the data from
                                        Pac-West If U S WEST detects an error in
                                        the Pac-West provided data, the data
                                        shall be returned to Pac-West within two
                                        (2) Business Days from when it was
                                        provided to U S WEST. Pac-West shall
                                        respond to requests from U S WEST to
                                        make corrections to database record
                                        errors by uploading

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<PAGE>

                       corrected records within two (2) Business Days. Manual
                       entry shall be allowed only in the event that the system
                       is not functioning properly. Pac-West may request,
                       through the BFR process, similar services from U S WEST
                       for their customers who are served on a non-resale basis.

         50.1.9.13     The Parties will cooperate to implement the adoption of a
                       Carder Code (NENA standard five-character field) on all
                       ALI records received from Pac-West, when those standards,
                       NENA-02-OON. are adopted by the industry standards
                       process. U S WEST will furnish Pac-West any variations
                       from NENA recommendations required for ALI database
                       input. The Carrier Code will be used to identify the
                       carrier of record in INP configurations.

         50.1.9.14     Pac-West will provide end user data to the U S WEST ALI
                       database utilizing NENA-02-001 Recommended Formats For
                       Data Exchange, and Recommended Standard For Street
                       Thoroughfare Abbreviations and Protocols For Data
                       Exchange and Data Quality utilizing NENA Recommended
                       Formats for Data Exchange document dated June, 1993.

         50.1.9.15     U S WEST shall identify which ALI databases cover which
                       states, counties or parts thereof, and identify and
                       communicate a point of contact for each.

         50.1.9.16     U S WEST will provide Pac-West with the identification of
                       the U S WEST 911 controlling office that serves each
                       geographic area served by Pac-West.

         50.1.9.17     U S WEST shall provide to Pac-West, for Pac-West
                       Customers, E911/911 call routing to the appropriate
                       Public Safety Answering Point ("PSAP") for resold lines.
                       U S WEST shall provide and validate Pac-West Customer
                       information to the PSAP in the same fashion as it does
                       for its own Customers. U S WEST shall use its service
                       order process to update and maintain, on the same
                       schedule that it uses for its end users, the Pac-West
                       Customer service information in the ALI/DMS used to
                       support E911/911 services. Pac-West may request, through
                       the BFR process, similar services from U S WEST for their
                       customers who are served on a non-resale basis.

         50.1.9.18     Pac-West exchanges to be included in US WEST's E911
                       Database will be indicated via written notice and will
                       not require an amendment to this Agreement.(42)

      50.1.10  The following are Basic 911 and E91 1 Network Requirements:

         50.1.10.1     U S WEST, at Pac-West's option, shall provide a minimum
                       of two (2) E911 trunks per jurisdictional area, or that
                       quantity which will maintain P.01 transmission grade of
                       service, or the level of service provided by U S WEST to
                       itself, whichever is the higher grade of service. These
                       trunks will be dedicated to routing 911 calls from
                       Pac-West switch to a U S WEST E911 tandem.

----------

42   Per Order at page 34, Issue 63.

                                       65
<PAGE>

             50.1.10.2    U S WEST shall provide Pac-West a data link to the
                          ALI/DMS database or permit Pac-West to provide its own
                          data link to the ALI/DMS database. U S WEST shall
                          provide error reports from the ALI/DMS database to
                          Pac-West immediately after Pac-West inputs information
                          into the ALI/DMS database. Alternately, Pac-West may
                          utilize U S WEST or a third party entity to enter
                          Customer information into the database on a demand
                          basis, and validate Customer information on a demand
                          basis.

             50.1.10.3    U S WEST shall provide the selective routing of E911
                          calls received from Pac-West switching office. This
                          includes the ability to receive the ANI of the
                          Pac-West Customer, selectively route the call to the
                          appropriate PSAP, and forward the Customer's ANI to
                          the PSAP. U S WEST shall provide Pac-West with the
                          appropriate CLLI codes and specifications regarding
                          the tandem serving area associated addresses and meet
                          points in the network.

             50.1.10.4    Copies of E911 Tandem Boundary Maps shall be available
                          to Pac-West. Each map shows the areas served by that
                          E911 tandem. The map provides Pac-West the information
                          necessary to set up its network to route E9 11 callers
                          to the correct E91 1 tandem.

             50.1.10.5    Pac-West shall ensure that its switch provides an
                          eight-digit ANI consisting of an information digit and
                          the seven-digit exchange code. Pac-West shall also
                          ensure that its switch provides the line number of the
                          calling station. In the event of a change in industry
                          standards, the Parties shall cooperate to incorporate
                          the changed standards in their respective networks.

             50.1.10.6    Each ALI discrepancy report shall be jointly
                          researched by U S WEST and Pac-West. Corrective action
                          shall be taken immediately by the responsible party.

             50.1.10.7    Technical specifications for E911 network interface
                          are available through U S WEST technical publication
                          77338. Technical specifications for database loading
                          and maintenance are available through the third party
                          database manager - SCC.

             50.1.10.8    U S WEST shall begin restoration of E911 and/or E911
                          trunking facilities immediately upon notification of
                          failure or outage. U S WEST must provide priority
                          restoration of trunks or networks outages on the same
                          terms/conditions it provides itself and without the
                          imposition of Telecommunications Service Priority
                          (TSP).

             50.1.10.9    U S WEST shall identify any special operator-assisted
                          calling requirements to support 911.

             50.1.10.10   Trunking shall be arranged to minimize the likelihood
                          of central office isolation due to cable cuts or other
                          equipment failures. There will be an alternate means
                          of transmitting a 911 call to a PSAP in the event of
                          failures.

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             50.1.10.11   Circuits shall have interoffice, loop and carrier
                          system diversity when such diversity can be achieved
                          using existing facilities. Circuits will be divided as
                          equally as possible across available carrier systems.
                          Diversity will be maintained or upgraded to utilize
                          the highest level of diversity available in the
                          network.

             50-1.10.12   Equipment and circuits used for 911 shall be monitored
                          at all times. Monitoring of circuits shall be done to
                          the individual circuit level. Monitoring shall be
                          conducted by U S WEST for trunks between the tandem
                          and all associated PSAPs.

             50.1.10.13   Repair service shall begin immediately upon receipt of
                          a report of a malfunction. Repair service includes
                          testing and diagnostic service from a remote location,
                          dispatch of or in-person visit(s) of personnel.
                          Technicians will be dispatched without delay.

             50.1.10.14   All 911 trunks must adhere to the Americans with
                          Disabilities Act requirements.

             50.1.10.15   The Parties will cooperate in the routing of 911
                          traffic in those instances where the ALI/ANI I
                          information is not available on a particular 911 call.

             50.1.10.16   Pac-West is responsible for network management of its
                          network components in compliance with the Network
                          Reliability Council Recommendations and meeting the
                          network standard of U S WEST for the 911 call
                          delivery.

     50.1.11         Basic 911 and E911 Additional Requirements

             50.1.11.1    All Pac-West lines that have been ported via INP shall
                          reach the correct PSAP when 911 is dialed. U S WEST
                          shall send both the ported number and the Pac-West
                          number (if both are received from Pac-West). The PSAP
                          attendant shall see both numbers where the PSAP is
                          using a standard ALI display screen and the PSAP
                          extracts both numbers from the data that is sent.

             50.1.11.2    U S WEST shall work with the appropriate government
                          agency to provide Pac-West the ten-digit POTS number
                          of each PSAP which sub-tends each U S WEST E911 Tandem
                          to which Pac-West is interconnected.

             50.1.11.3    U S WEST will provide Pac-West with the ten-digit
                          telephone numbers of each PSAP agency, for which U S
                          WEST provides the 911 function, to be used by Pac-West
                          operators for handling emergency calls in those
                          instances where the Pac-West Customer dials "0"
                          instead of 911.

             50.1.11.4    Pac-West will provide U S WEST with the ten-digit
                          telephone numbers of each PSAP agency, for which
                          Pac-West provides the 911 function, to be used by U S
                          WEST operators for handling emergency calls in those
                          instances where the U S WEST Customer dials "0"
                          instead of "911."

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             50.1.11.5    U S WEST shall notify Pac-West' 'Forty-eight (48)
                          hours in advance of any scheduled testing or
                          maintenance affecting Pac-West 911 service. and
                          provide notification as soon as possible of any
                          unscheduled outage affecting Pac-West 911 service.

             50.1.11.6    Pac-West shall be responsible for reporting all
                          errors. defects and malfunctions to U S WEST. U S WEST
                          snail provide Pac-West with the point of contact for
                          reporting errors, defects, and malfunctions in the
                          service and shall also provide escalation contacts.

             50.1.11.7    Pac-West may enter into subcontracts with third
                          parties. including Pac-West affiliates, for the
                          performance of any of Pac-West duties and obligations
                          stated herein.

             50.1.11.8    U S WEST shall provide sufficient planning information
                          regarding anticipated moves to SS7 signaling for the
                          next twelve (12) months.

             50.1.11.9    U S WEST shall provide notification of any pending
                          tandem moves, NPA splits, or scheduled maintenance
                          outages, with enough time to react.

             50.1.11.10   U S WEST shall provide "reverse ALI" inquiries by
                          public safety entities, consistent with U S WEST's
                          practices and procedures.

             50.1.11.11   U S WEST shall manage NPA splits by populating the ALI
                          database with the appropriate new NPA codes,
                          consistent with U S WEST's practices and procedures
                          for resold services.

             50.1.11.12   U S WEST must provide the ability for Pac-West to
                          update the 911 database with end user information for
                          lines that have been ported via INP or NP.

             50.1.11.13   The data in the ALI database shall be managed by U S
                          WEST but is the property of U S WEST and all
                          participating telephone companies.

         50.1.12   Performance Criteria. E911 Database accuracy shall be as set
                   forth below:

             50.1.12.1    Accuracy of ALI (Automatic Location Identification)
                          data submitted by Pac-West to U S WEST will be
                          measured jointly by the PSAPs and U S WEST. All such
                          reports shall be forwarded to Pac-West by U S WEST and
                          will indicate incidents when incorrect or no ALI data
                          is displayed. A report regarding any inaccuracy shall
                          be prepared by U S WEST.

             50.1.12.2    Each discrepancy report will be jointly researched by
                          U S WEST and Pac-West. Corrective action will be taken
                          immediately by the responsible party.

             50.1.12.3    Each party will be responsible for the accuracy of the
                          Customer records it provides.

50.2     Directory Assistance Service

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          50.2.1    U S WEST shall provide for the routing of directory
                    assistance calls (including but not limited to 411,
                    555-1212, NPA-550-1212) dialed by Pac-West Customers
                    directly to either the Pac-West Directory Assistance Service
                    platform or U S WEST Directory Assistance Service platform
                    as specified by Pac-West

          50.2.2    Pac-West Customers shall be provided the capability by U S
                    WEST to dial the same telephone numbers for access to
                    Pac-West Directory Assistance that U S WEST Customers to
                    access U S WEST Directory Assistance.

          50.2.3    U S WEST shall provide Directory Assistance functions and
                    services to Pac-West for its Customers as described below
                    until, at Pac-West's discretion, U S WEST routes calls to
                    the Pac-West Directory Assistance Services platform.

                    50.2.3.1      U S WEST agrees to provide Pac-West Customers
                                  with the same Directory Assistance service
                                  available to U S WEST Customers.

                    50.2.3.2      U S WEST shall notify Pac-West in advance of
                                  any changes or enhancements to its Directory
                                  Assistance Service, and shall make available
                                  such service enhancements on a
                                  non-discriminatory basis to Pac-West.

                    50.2.3.3      U S WEST shall provide Directory Assistance to
                                  Pac-West Customers in accordance with U S
                                  WEST's internal operating procedures and
                                  standards, which shall, at a minimum, comply
                                  with accepted professional and industry
                                  standards.

                    50.2.3.4      U S WEST shall provide Pac-West with the same
                                  level of support for the provisioning of
                                  Directory Assistance as U S WEST provides
                                  itself.

                    50.2.3.5      Service levels shall comply, at a minimum,
                                  with State Regulatory Commission requirements
                                  for directory assistance.

                    50.2.3.6      U S WEST agrees to maintain an adequate
                                  operator work force based on a review and
                                  analysis of actual call attempts and
                                  abandonment rate.

                    50.2.3.7      Subject to the provisions of the applicable
                                  U S WEST collective bargaining agreements,
                                  Pac-West shall participate in all call
                                  monitoring activities available to U S WEST
                                  and to remote call monitor as customarily
                                  practiced by the outsource customers of call
                                  centers.

                    50.2.3.8      U S WEST shall provide the following minimum
                                  Directory Assistance capabilities to Pac-West
                                  Customers:

                                  (a)   A maximum of two Customer listings
                                        and/or addresses or U S WEST parity per
                                        Pac-West Customer request.

                                  (b)   Name and address to Pac-West Customers
                                        upon request, except for unlisted
                                        numbers, in the same states where such
                                        information is provided to U S WEST
                                        Customers.

                                  (c)   For Pac-West customers who are served
                                        exclusively through resold U S WEST
                                        retail services, Pac-West may resell U S
                                        WEST's Directory Assistance call
                                        completion services to the

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                                        extent U S WEST offers call Directory
                                        Assistance call completion to to its own
                                        end users. For Pac-West customers who
                                        are served from an Pac-West switch,
                                        Pac-West may request Directory
                                        Assistance call completion services
                                        through the BFR process. Such BFR
                                        process shall address the identification
                                        of the Pac-West end user at the U S WEST
                                        Directory Assistance Platform for
                                        purposes of routing and billing of
                                        intraLATA and interLATA toll calls.

                                  (d)   The U S WEST mechanized interface with
                                        the U S WEST subscriber Listing database
                                        is not available for Pac-West as of the
                                        Effective Date of this Agreement. When
                                        the mechanized interface is available, U
                                        S WEST will populate the Directory
                                        Assistance Database in the same manner
                                        and in the same time frame as for U S
                                        WEST Customers.

                                  (e)   Any information provided by a Directory
                                        Assistance Automatic Response Unit (ARU)
                                        shall be repeated the same number of
                                        times for Pac-West Customers as for U S
                                        WEST's Customers.

                                  (f)   When an Pac-West Customer served on a
                                        resale or unbundled switching basis
                                        requests a U S WEST directory assistance
                                        operator to provide instant credit on a
                                        directory assistance call, the U S WEST
                                        directory assistance operator shall
                                        inform the Pac-West Customer to call an
                                        800 number for Pac-West Customer service
                                        to request a credit. The accurate
                                        identification of Pac-West as the
                                        customer's local service provider by the
                                        U S WEST directory assistance operator
                                        requires the use of separate Pac-West
                                        trunks to the Directory Assistance
                                        Platform.

                 50.2.3.9      For resold lines and unbundled switching, U S
                               WEST shall provide data regarding billable events
                               as requested by Pac-West.

                 50.2.3.10     U S WEST agrees to (1) provide to Pac-West
                               operators, on line access to U S WEST's directory
                               assistance database equivalent to the access
                               provided to U S WEST operators; (2) allow
                               Pac-West or an Pac-West designated operator
                               bureau to license U S WEST's subscriber Listings
                               database on terms and conditions equivalent to
                               the terms and conditions upon which U S WEST
                               utilizes such databases; and (3) in conjunction
                               with branded or unbranded Directory Assistance
                               Service pursuant to Section 8 of this Part A of
                               this Agreement provide caller optional Directory
                               Assistance call completion service which is
                               comparable in every way to the Directory
                               Assistance call completion service U S WEST makes
                               available to its own users. Pac-West may, at its
                               option, request U S WEST not to provide call
                               completion services to Pac-West.

                 50.2.3.11     In addition to charges for directory assistance,
                               when call completion for an intraLATA toll call
                               is requested, the applicable charge for the
                               completion of such intraLATA toll call will
                               apply.

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50.3     Operator Services

         50.3.1   U S WEST shall provide for the routing of local Operator
                  Services calls (including but not limited to 0+, 0-) dialed by
                  Pac-West Customers directly to either the Pac-West operator
                  service platform or U S WEST operator service platform as
                  specified by Pac-West.

         50-3.2   Pac-West Customers shall be provided the capability by U S
                  WEST to dial the same telephone numbers to access Pac-West
                  operator service that U S WEST Customers dial to access U S
                  WEST operator service.

         50-3.3   U S WEST shall provide Operator Services to Pac-West as
                  described below until, at Pac-West's discretion, U S WEST
                  routes calls to the Pac-West local Operator Services platform.

                  50.3.3.1     U S WEST agrees to provide Pac-West Customers the
                               same Operator Services available to U S WEST
                               Customers. U S WEST shall make available its
                               service enhancements on a non-discriminatory
                               basis.

                  50.3.3.2     U S WEST shall provide the following minimum
                               Operator Services capabilities to Pac-West
                               Customers:

                               (a)    U S WEST shall complete 0+ and 0- dialed
                                      local calls, including O-Coin, Automatic
                                      Coin Telephone Service (ACTS) and the
                                      completion of coin calls, the collection
                                      of coins, and the provision of coin rates.

                               (b)    U S WEST shall complete 0+ intraLATA and,
                                      when offered, interLATA tall calls. The
                                      Parties will cooperate to develop industry
                                      standards to include the end user's PIC in
                                      operator services signaling and the
                                      development of associated routing
                                      procedures.

                               (c)    U S WEST shall complete calls for
                                      Pac-West's Customers that are billed to
                                      calling cards and other commercial cards
                                      on the same basis as provided to U S WEST
                                      own customers and Pac-West shall designate
                                      to U S WEST the acceptable types of
                                      special billing.

                               (d)    U S WEST shall complete person-to-person
                                      calls.

                               (e)    U S WEST shall complete collect calls.

                               (f)    U S WEST shall provide the capability for
                                      callers to bill to a third party and
                                      complete such calls.

                               (g)    U S WEST shall complete station-to-station
                                      calls.

                               (h)    U S WEST shall process emergency calls.

                               (i)    U S WEST shall process Busy Line Verify
                                      and Busy Line Interrupt requests.

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                       (j)    U S WEST shall process emergency call trace in
                              accordance with its normal and customary
                              procedures.

                       (k)    U S WEST shall process operator-assisted directory
                              assistance calls.

                       (1)    U S WEST operators shall provide Pac-West
                              Customers with long distance rate quotes to the
                              extent U S WEST provides such rate quotes to its
                              own end users. Based on technology available as of
                              the Effective Date of this Agreement, the
                              provision of rate quotes to Pac-West Customers
                              requires a separate Pac-West trunk group to the
                              U S WEST operator services platform to identify
                              the caller as an Pac-West Customer.

                       (m)    U S WEST operators shall provide Pac-West
                              Customers with time and charges to the extent U S
                              WEST provides such time and charges to its own end
                              users. Based on technology available as of the
                              Effective Date of this Agreement, the provision of
                              time and charges to Pac-West Customers requires a
                              separate Pac-West trunk group to the U S WEST
                              operator services platform to identify the caller
                              as an Pac-West Customer.

                       (n)    U S WEST shall route 0- traffic to a "live"
                              operator team.

                       (o)    Under the circumstances that U S WEST grants
                              credit to its customers for a U S WEST failure to
                              provide directory assistance services as required
                              by U S WEST tariffs or as U S WEST otherwise
                              grants credits on a discretionary basis to U S
                              WEST customers, U S WEST will, on a
                              non-discriminatory basis, (i) in connection with
                              resold services, provide an equivalent credit to
                              Pac-West or (iii) in connection with non-resold
                              services, provide Pac-West a credit in the amount
                              paid by Pac-West for the unbundled service.(43)

                        (p)   U S WEST shall provide caller assistance for the
                              disabled in the same manner as provided to U S
                              WEST Customers.

                        (q)   When available to U S WEST end users, U S WEST
                              shall provide operator-assisted conference calling
                              to Pac-West.

               50.3.3   U S WEST shall exercise at least the same level of fraud
                        control in providing Operator Service to Pac-West that U
                        S WEST provides for its own operator service, where the
                        Pac-West fraud control data is in U S WEST's Line
                        Information Data Base ("LIDB").

               50.3.4   U S WEST shall perform Billed Number Screening (BNS)
                        when handling collect, third party, and calling card
                        calls, both for station to station and person to person
                        call types.

----------

43 Per Recommendations at page 18, Issue 105.

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         50.3.5   Subject to the provisions of the applicable U S WEST
                  collective bargaining agreements, Pac-West shall be permitted
                  to participate in all call monitoring activities available to
                  U S WEST and to remote call monitor as customarily practiced
                  by the outsource customers of call centers.

         50.3.6   U S WEST shall direct Customer account and other similar
                  inquiries to the Customer service center designated by
                  Pac-West.

         50.3.7   U S WEST shall provide an electronic feed of Customer call
                  records in "EMR" format to Pac-West in accordance with the
                  time schedule mutually agreed between the Parties.

         50.3.8   U S WEST shall update the LIDB for Pac-West Customers.
                  Additionally, U S WEST must provide access to LIDB for
                  validation of collect, third parry billed, and LEC card billed
                  calls.

         50.3.9   Where INP is deployed and when a BLV/BLI request for a ported
                  number is directed to a U S WEST operator and the query is not
                  successful (i.e., the request yields an abnormal result),
                  Pac-West may request, through the BFR process, that the
                  operator confirm whether the number has been ported and direct
                  the request to the appropriate operator.

         50.3.10  U S WEST shall allow Pac-West to order provisioning of
                  Telephone Line Number (TLN) calling cards and Billed Number
                  Screening (BNS), in its LIDB, for ported numbers, as specified
                  by Pac-West. U S WEST shall continue to allow Pac-West access
                  to its LIDB.

         50-3.11  Toll and Assistance ("TIA") refers to functions Customers
                  associate with the "0" operator. Subject to availability and
                  capacity, access may be provided via operator services trunks
                  purchased from U S WEST or provided by Pac-West via
                  collocation arrangements to route calls to Pac-West's
                  platform.

         50.3.12  Automated Branding - ability to announce the carrier's name to
                  the Customer during the introduction of the call.

         50.3.13  Interconnection to the U S WEST Toll and Assistance Operator
                  Services from an end office to U S WEST T/A is technically
                  feasible at least at three (3) distinct points on the trunk
                  side of the switch. The first connection point is an operator
                  services trunk connected directly to the T/A host switch. The
                  second connection point is an operator services trunk
                  connected directly to a remote T/A switch. The third
                  connection point is an operator services trunk connected to a
                  remote access tandem with operator concentration capabilities.

         50.3.14  All trunk interconnections will be digital.

         50.3.15  The technical requirements of operator services type trunks
                  and the circuits to connect the operator positions to the host
                  are covered in the Operator Services Switching Generic
                  Requirements ("OSSGR") Bellcore Document number FR-NWT-000271.

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         50.3.16  Busy Line Verify and Interrupt

             50.3.16.1   At the request of Pac-West operators or Customers, U S
                         WEST operators will perform Busy Line Verify ("BLV")
                         and/or Busy Line Interrupt ("BLI") operations where
                         such capacity exists.

             50.3.16.2   When possible and where consistent with the service U S
                         WEST provides to its own Customers and/or end users,
                         U S WEST shall engineer its BLV/BLI facilities to
                         accommodate the anticipated volume of BLV/BLI requests
                         during the busy hour. Pac-West may, from time to time,
                         provide its anticipated volume of BLV/BLI requests to U
                         S WEST. In those instances when failures occur to
                         significant portions of the BLV/BLI systems and
                         databases and those systems and databases become
                         unavailable, U S WEST shall promptly Inform Pac-West.

            50.3.16.3    BLV is performed when one Party's Customer requests
                         assistance from the other Party's operator or operator
                         bureau to determine if the called line is in use;
                         provided, however, that the operator bureau will not
                         complete the call for the Customer initiating the BLV
                         inquiry. Only one (1) BLV attempt will be made per
                         Customer operator bureau call, and a charge shall apply
                         whether or not the called party releases the line.

            50.3.16.4    BLI is performed when one Party's Customer requests
                         assistance from the other Party's operator bureau to
                         interrupt a telephone call in progress after BLV has
                         occurred. The operator bureau will interrupt the busy
                         line and inform the called party that there is a call
                         waiting. The operator bureau will only interrupt the
                         call and will not complete the telephone call of the
                         Customer initiating the BLI request. The operator
                         bureau will make only one (1) BLI attempt per Customer
                         operator telephone call and the applicable charge
                         applies whether or not the called party releases the
                         line.

            50.3.16.5    Each Party's operator bureau shall accept BLV and BLI
                         inquiries from the operator bureau of the other Party
                         in order to allow transparent provision of BLV/ BLI
                         traffic between the Parties' networks.

            50.3.16.6    Each Party shall route BLV/13LI Traffic inquiries over
                         direct trunks between the Parties' respective operator
                         bureaus. Unless otherwise mutually agreed, the Parties
                         shall configure BLV/BLI trunks over the Interconnection
                         architecture defined in Attachment 4 to this Agreement.

50.4     Directory Assistance and Listings Service Requests

     50.4.1   These requirements pertain to U S WEST's Directory Assistance and
              Listings Service Request process that enables Pac-West to (a)
              submit Pac-West Customer information for inclusion in U S WEST
              Directory Assistance and Directory Listings databases; (b) submit
              Pac-West Customer information for inclusion in published
              directories; and (c) provide Pac-West Customer delivery address
              information to enable U S WEST to fulfill directory distribution
              obligations.

              50.4.1.1   (intentionally left blank for numbering consistency)

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              50.4.1.2      U S WEST will accept the following Directory Listing
                            Migration Orders from Pac-West, valid under all
                            access methods, including but not limited to,
                            Resale, Unbundled Network Elements and
                            Facilities-Based. and will process the orders in a
                            mechanized format:

                           (a)   Migrate with no Changes: Maintain all directory
                                 listings for the Customer in both Directory
                                 Assistance and Directory Listing. Transfer
                                 ownership and billing for listings to Pac-West.

                           (b)   Migrate with Additions: Maintain all directory
                                 listings for the customer in both Directory
                                 Assistance and Directory Listing. Incorporate
                                 the specified additional listings order.
                                 Transfer ownership and billing for the listings
                                 to Pac-West.

                           (c)   Migrate with Deletions: Maintain all directory
                                 listings for the Customer in both Directory
                                 Assistance and Directory Listing. Delete the
                                 specified listings from the listing order.
                                 Transfer ownership and billing for the listings
                                 to Pac-West.

              50.4,1.3      The Directory Listings Migration Options should not
                            be tied to migration options specified for a related
                            service order (if any) such that a service order
                            specified as migration with changes may be submitted
                            along with a directory listing order specified as
                            migration with no changes.

              50.4.1.4      U S WEST shall enable Pac-West to electronically
                            transmit multi-line listing orders.

              50.4.1.5      U S WEST agrees to work cooperatively with Pac-West
                            to define specifications for, and implement a daily
                            summary report of, Directory Service Requests. The
                            summary information will include but is not limited
                            to the following information:

                           (a)   White page listings text and format (name,
                                 address, phone, title, designation, extra line
                                 requirements

                           (b)   Listing Instruction codes

             50.4.1.6      To ensure accurate order processing, U S WEST shall
                           provide to Pac-West the following information, with
                           updates within one (1) Business Day of change and via
                           electronic exchange:

                           (a)   A matrix of NXX to central office
                           (b)   Geographical maps, if available, of U S WEST
                                 service area
                           (c)   A description of calling areas covered by each
                                 directory, including but not limited to maps of
                                 calling areas and matrices depicting calling
                                 privileges within and between calling areas
                           (d)   Listing format rules
                           (e)   Listing alphabetizing rules
                           (f)   Standard abbreviations acceptable for use in
                                 listings and addresses
                           (g)   Titles and designations

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             50.4.1.2      U S WEST will accept the following Directory Listing
                           Migration Orders from Pac-West. valid under ail
                           access methods. including but not limited to. Resale,
                           Unbundled Network Elements and Facilities-Based. and
                           will process the orders in a mechanized format:

                           (a)    Migrate with no Chances: Maintain all
                                  directory listings for the Customer in both
                                  Directory Assistance and Directory Listing.
                                  Transfer ownership and billing for listings
                                  to Pac-West.

                            (b)   Migrate with Additions: Maintain ail directory
                                  listings for the customer in both Directory
                                  Assistance and Directory Listing. Incorporate
                                  the specified additional listings order.
                                  Transfer ownership and billing for the
                                  listings to Pac-West.

                            (c)   Migrate with Deletions: Maintain ail directory
                                  listings for the customer in both Directory
                                  Assistance and Directory Listing. Delete the
                                  specified listings from the listing order.
                                  Transfer ownership and billing for the
                                  listings to Pac-West.

             50.4.1.3      The Directory Listings Migration Options should not
                           be tied to migration options specified for a related
                           service order (if any) such that a service order
                           specified as migration with changes May be submitted
                           along with a directory listing order specified as
                           migration with no changes.

             50.4.1.4      U S WEST shall enable Pac-West to electronically
                           transmit multi-line listing orders.

             50.4.1.5      U S WEST agrees to work cooperatively with Pac-West
                           to define specifications for, and implement a daily
                           summary report of, Directory Service Requests. The
                           summary information will include but is not limited
                           to the following information:

                           (a)   White pace listings text and format (name,
                                 address, phone, title, designation, extra line
                                 requirements

                           (b)   Listing Instruction codes

              50.4.1.6      To ensure accurate order processing, U S WEST shall
                            provide to Pac-West the following information, with
                            updates within one (1) Business Day of change and
                            via electronic exchange:

                            (a)   A matrix of NXX to central office
                            (b)   Geographical maps. if available, of U S WEST
                                  service area
                            (c)   A description of calling areas covered by each
                                  directory, including but not limited to maps
                                  of calling areas and Matrices depicting
                                  calling privileges within and between calling
                                  areas
                            (d)   Listing format rules
                            (e)   Listing alphabetizing rules
                            (f)   Standard abbreviations acceptable for use in
                                  listings and addresses
                            (g)   Titles and designations

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<PAGE>

                  50.4.1.7     Based on changes submitted by Pac-West, U S WEST
                               shall update and maintain Directory Assistance
                               and Directory Listings data for Pac-West
                               Customers who:

                               (a)    Disconnect Service
                               (b)    Change carrier
                               (c)    Install Service
                               (d)    Change any service which affects
                                      Directory Assistance information
                               (e)    Specify Non-Solicitation
                               (f)    Are Non-Published, Non-Listed, or Listed

                  50.4.1.8     U S WEST shall not charge for storage of Pac-West
                               Customer information in the Directory Assistance
                               and Directory Listing systems.

                  50.4.1.9     Pac-West shall not charge for storage of U S WEST
                               Customer information in the Directory Assistance
                               and Directory Listing systems.

50.5     Directory Assistance Data

         50.5.1   This Section refers to the residential, business, and
                  government Customer records used by U S WEST to create and
                  maintain databases for the provision of live or automated
                  operator assisted Directory Assistance. Directory Assistance
                  data is information that enables telephone exchange carriers
                  to swiftly and accurately respond to requests for directory
                  information, including, but not limited to, name, address and
                  phone numbers. Under the provisions of the Act and the FCC's
                  Interconnection Order, U S WEST shall provide unbundled and
                  non-discriminatory access to the residential, business and
                  government Customer records used by U S WEST to create and
                  maintain databases for the provision of live or automated
                  operator assisted Directory Assistance. Pac-West may combine
                  this element with any other Network Element for the provision
                  of any Telecommunications Service.(44)

         50.5.2   U S WEST shall provide an initial load of Customer records and
                  Customer list information to Pac-West, in a mutually-agreed-to
                  format, via electronic transfer, within thirty (30) calendar
                  days of the Effective Date of this Agreement The initial load
                  shall include all data resident in the U S WEST Databases
                  and/or systems used by U S WEST for housing Directory
                  Assistance data and/or Customer Listing data. In addition, the
                  initial load shall be current as of the prior Business Day on
                  which the initial load is provided.

         50.5.3   U S WEST shall provide Pac-West daily updates to the Customer
                  records and Customer list information in a mutually-agreed-to
                  format via electronic transfer.

         50.5.4   U S WEST shall provide the ability for Pac-West to
                  electronically query the U S WEST Directory Assistance
                  Database and Listings Database in a manner at least consistent
                  with and equal to that which U S WEST provides to itself or
                  any other Person.

         50.5.5   U S WEST shall provide an initial load of Customer records and
                  Customer list information to Pac-West, in a mutually-agreed-to
                  format, via electronic transfer,

----------

44   Per Order at page 32, Issue 63.

                                       76
<PAGE>

                           within thirty (30) calendar days of the Effective
                           Date of this Agreement The initial load shall include
                           ail data resident in the U S WEST Databases and/or
                           systems used by U S WEST for housing directory
                           assistance data and/or Customer Listing data. In
                           addition, the initial load shall be current as of the
                           prior Business Day on which the initial load is
                           provided.

                 50.5.6    U S WEST shall provide Pac-West daily updates to the
                           Customer records and Customer list information in a
                           mutually-agreed-to format via electronic transfer.

                 50.5.7    U S WEST shall provide the ability for Pac-West to
                           electronically query the U S WEST Directory
                           Assistance Database and Listings Database in a manner
                           at least consistent with and equal to that which U S
                           WEST provides to itself or any other Person.

                 50.5.8    U S WEST shall provide Pac-West a complete list of
                           ILECs, CLECs. and independent telephone companies
                           that provided data contained in the database.

                 50.5.9    On a daily basis, U S WEST shall provide updates (end
                           user and mass) to the Listing information via
                           electronic data transfer. Updates shall be current as
                           of one business day prior to the date provided to
                           Pac-West.

                 50.5.10   U S WEST shall provide Pac-West access to Directory
                           Assistance support databases. For example, Pac-West
                           requires access to use restriction information
                           including but not limited to call completion.

                 50.5.11   Directory Assistance data shall specify whether the
                           Customer is a residential, business, or government
                           Customer. Additionally, data must include all levels
                           of indentation and all levels of information
                           specified in "Directory Assistance Data Information
                           Exchanges and Interfaces' below.

                 50.5.12   Directory Assistance data shall be provided on the
                           same terms, conditions, and rates that U S WEST
                           provides such data to itself or other third parties.

                 50.5.13   U S WEST shall provide complete refresh of the
                           Directory Assistance data upon request by Pac-West

                 50.5.14   U S WEST and Pac-West will cooperate in the
                           designation of a location at which the data will be
                           provided.

51.      Unused Transmission Media(45)

         51.1     Definitions

                  51.1.1   Unused Transmission Media is physical inter-office
                           transmission media (e.g., optical fiber, copper
                           twisted pairs, coaxial cable) which have no lightwave
                           or electronic transmission equipment terminated to
                           such media to operationalize transmission
                           capabilities.

                  51.1.2   Dark fiber is excess fiber optic cable which has been
                           placed in a network and is not currently being lit by
                           electronics from any

----------

45  Per Order at pages 11 -12, Issue 22.

                                       77
<PAGE>

                  carrier. Dark Fiber, one type of Unused Transmission Media, is
                  unused strands of optical fiber. Dark Fiber also includes
                  strands of optical fiber which may or may not have lightwave
                  repeater (regenerator or optical amplifier) equipment
                  interspliced, but which has no line terminating facilities
                  terminated to such strands. Unused Transmission Media also
                  includes unused wavelengths within a fiber strand for purposes
                  of coarse or dense wavelength division multiplexed (WDM)
                  applications. Typical single wavelength transmission involves
                  propagation of optical signals at single wavelengths (1.3 or
                  1.55 micron wavelengths). In WDM applications, a WDM device is
                  used to combine optical signals at different wavelengths on to
                  a single fiber strand. The combined signal is then transported
                  over the fiber strand. For coarse WDM applications, one (1)
                  signal each at 1.3 micron and 1.55 micron wavelength are
                  combined. For dense WDM applications, many signals in the
                  vicinity of 1.3 micron wavelength and/or 1.55 micron
                  wavelength are combined.

     51.2     While U S WEST is not required to provide Unused Transmission
              Media, other than Dark Fiber,(46) Pac-West may, subject to the
              agreement of U S WEST, lease copper twisted pairs, coaxial cable
              or other Unused Transmission Media.

     51.3     Requirements

              51.3.1   Subject to Section 51.2 above, U S WEST shall make
                       available Unused Transmission Media to Pac-West under a
                       lease agreement or other arrangement.

              51.3.2   U S WEST shall provide a single point of contact for
                       negotiating all Unused Transmission Media use
                       arrangements.

              51.3.3   Pac-West may test the quality of the Unused Transmission
                       Media to confirm its usability and performance
                       specifications.

              51.3.4   Where Unused Transmission Media is required to be offered
                       or is agreed to be offered by U S WEST, U S WEST shall
                       provide to Pac-West information regarding the location,
                       availability and performance of Unused Transmission Media
                       within ten (10) Business Days for a records-based answer
                       and twenty (20) Business Days for a field- based answer,
                       after receiving a request from Pac-West ("Request").
                       Within such time period, U S WEST shall send written or
                       electronic confirmation or any other method of
                       notification agreed to by the Parties of availability of
                       the Unused Transmission Media ("Confirmation").

----------

46  Per Order at pages 11-12, Issue 22.

                                       78
<PAGE>

         51.3.5   Where Unused Transmission Media is required to be offered or
                  is agreed to be offered by U S WEST, U S WEST shall make
                  Unused Transmission Media available for Pac-West's use in
                  accordance with the terms of this Section 51 within twenty
                  (20) Business Days or a reasonable timeframe consistent with
                  industry standards after it receives written acceptance from
                  Pac-West that the Unused Transmission Media is wanted for use
                  by Pac-West. Splicing of Pac-West fiber may be performed at
                  the same points that are available for U S WEST splices.

51.4     Requirements Specific to Dark Fiber

         51.4.1   Pac-West may test Dark Fiber leased from U S WEST using
                  Pac-West or Pac-West designated personnel subject to Section
                  51.2. U S WEST shall provide appropriate interfaces to allow
                  testing of Dark Fiber. U S WEST shall provide an excess cable
                  length of twenty-five (25) feet minimum, where available, for
                  fiber in underground conduit. U S WEST shall provide splicing
                  of Pac-West fiber to U S WEST Dark Fiber under normal
                  circumstances (e.g., no construction) in metropolitan areas
                  within seventeen (17) calendar days of Pac-West's request, and
                  within thirty (30) calendar days of a request in a
                  non-metropolitan area. Pac-West may request expedited
                  splicing, which shall be subject to available U S WEST
                  resources.

         51.4.2   For WDM applications, U S WEST shall provide to Pac-West an
                  interface to an existing WDM device or allow Pac-West to
                  install its own WDM device (where sufficient system loss
                  margins exist or where Pac-West provides the necessary loss
                  compensation) to multiplex the traffic at different
                  wavelengths. This applies to both the transmit and receive
                  ends of the Dark Fiber.

51.5     For the period beginning at the time of the Request and ending ninety
         (90) days following Confirmation, U S WEST shall reserve such Dark
         Fiber for Pac-West and shall not allow any use thereof by any Party,
         including U S WEST. Pac-West shall elect whether or not to accept such
         Dark Fiber within the ninety (90) day period following Confirmation.
         Pac-West may accept such Dark Fiber by sending written notice to U S
         WEST ("Acceptance"). If Pac-West requests reservation of Dark Fiber, U
         S WEST may charge a reservation fee in an amount mutually agreed upon
         by the Parties. Pac-West's obligation to pay a reservation fee shall
         begin on the date of the Confirmation. If the Parties are unable to
         agree on a reasonable reservation fee, the fee shall be established
         pursuant to the dispute resolution process in Section 27 of Part A of
         this Agreement Pac-West shall begin payment for the use of Dark Fiber
         upon the date of its timely Acceptance. If Pac-West fails to send a
         timely Acceptance, its reservation shall be released. If U S WEST
         agrees to provide Unused Transmission Media other than Dark Fiber

                                       79
<PAGE>

         to Pac-West, it shall do so on the same terms and conditions as stated
         in this section.(47)

         U S WEST may not reserve future capacity of its Dark Fiber for its own
         use,(48) with the exception of maintenance and emergency spare.(49)

         51.6     Portions of the bandwidth of the fiber may be sectioned and
                  Pac-West may share the bandwidth with U S WEST and other
                  CLECs.

52.      Service Standards(50)

         U S WEST will provide all Local Resale, Ancillary Functions, Network
         Elements or Combinations in accordance with service standards,
         measurements, and performance requirements that are expressly specified
         in this Agreement and Attachment 5 hereto. In cases where such
         performance standards are not expressly specified, U S WEST will
         provide all Local Resale, Ancillary Functions, Network Elements or
         Combinations in accordance with performance standards which are at
         least equal to the level of performance standards and/or quality of
         service that U S WEST provides to itself, its Affiliates, to other
         CLECs, or other quality of service requirements imposed by the
         Commission, whichever is higher, in providing Local Resale, Ancillary
         Functions, Network Elements or Combinations to itself, to its end-users
         or to its Affiliates. If Pac-West requests a higher level of service
         than that provided by U S WEST to itself or other Persons, Pac-West
         shall make the request pursuant to the BFR process.

         52.1     Definitions

                  The following service standards may be supplanted or
                  supplemented by a Commission decision in a proceeding
                  conducted for the purpose of determining the appropriate
                  performance standards or the applicability of penalties
                  relative to U S WEST's compliance with this Agreement, the Act
                  or the Commission's orders.(51)

                  52.1.1   "Specified Performance Commitment!' means the
                           commitment by U S WEST to meet the Performance
                           Criteria for any Specified Activity during the
                           Specified Review Period. The Specified Review Period
                           shall be the same period as U S WEST provides itself
                           for existing Performance Criteria and shall be ninety
                           (90) days for new Performance Criteria. The standard
                           of performance for each of the measurements of
                           performance in Washington shall be the quality of
                           service which U S WEST provides in Washington to
                           either itself, its ten largest end user Customers in
                           the aggregate, independent LECs in the aggregate,
                           other CLECs in the aggregate, or other quality of
                           service requirements imposed by the Commission,
                           whichever is highest

----------

47 Per Recommendation at pages 19-20, Issue 138.
48 Per Order at page 11, Issue 22.
49 Per Recommendation at page 20, Issue 138.
50 Per Order at pages 34-36, Issue 69.
51 Per Order at pages 34-36, Issue 69.

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<PAGE>

                  52.1.2   "Specified Activity" includes, but is not limited to,
                           the following activities:

                              (a)   Installation Activities - apply to resold
                                    services, unbundled loops, unbundled
                                    switching, and interim number portability:

                                    (i)   Installation Intervals Offered
                                          (measured from application date to
                                          original due date);

                                    (ii)  Installation Commitments Met;

                                    (iii) Installation Reports within seven (7)
                                          days (percent of reports per total of
                                          new, to or change orders).

                              (b)   Repair Activities - apply to resold service,
                                    unbundled loops, unbundled switching, and
                                    interim number portability:

                                    (i)   Out of Service Cleared in Less than
                                          Twenty-four (24) Hours (percent of
                                          total out of service reports);

                                    (ii)  Report Rate per 100 Access Lines;

                                    (iii) Repair Commitments Met;

                                    (iv)  Out of Service and Service Affecting
                                          Cleared in Less than Forty-eight (48)
                                          Hours;

                                    (v)   Repair Repeat Reports within Thirty
                                          (30) Days (Percent of Repeats per 100
                                          Access Lines).

                              (c) Trunking Activities - includes interconnection
                                  trunks:

                                    (i)   Defects per One Million Calls
                                          (Dedicated Facilities/Trunkside only).

                  52.1.3   "Performance Criteria" means, with respect to a
                           Specified Review Period (i.e., a calendar month or
                           quarter), the performance by U S WEST for each
                           Specified Activity for Pac-West will meet or exceed U
                           S WEST's overall average performance (as provided by
                           U S WEST to itself, to CLECs and to all other
                           Persons) for each Resale Service or unbundled Network
                           Element

         52.2     Failure to Meet the Performance Criteria

                  If, during a Specified Review Period, U S WEST fails to meet
                  the Performance Criteria, U S WEST will use its best efforts
                  to meet the Performance Criteria for the next Specified Review
                  Period. If U S WEST fails to meet the Performance Criteria for
                  two (2) consecutive periods, the Parties agree, in good faith,
                  to attempt to resolve such issues through negotiation or
                  nonbinding arbitration. This paragraph shall not be construed
                  to waive either

                                       81
<PAGE>

         Party's right to seek legal or regulatory intervention as provided by
         state or federal law. Pac-West may seek regulatory or other legal
         relief including requests for specific performance of U S WEST's
         obligations under this Agreement

         52.3     Limitations

                  U S WEST's failure to meet or exceed any of the Performance
                  Criteria cannot be as a result directly or indirectly, of a
                  Delaying Event A "Delaying Event" means (a) a failure by
                  Pac-West to perform any of its obligations set forth in this
                  Agreement, (b) any delay, act or failure to act by a Customer,
                  agent of subcontractor of Pac-West, or (c) any force majeure
                  event. If a Delaying Event prevents U S WEST from performing a
                  Specified Activity, then such Specified Activity shall be
                  excluded from the calculation of U S WEST's -compliance with
                  the Performance Criteria.

         52.4     Records

                  U S WEST shall maintain complete and accurate records, for the
                  Specified Review Period, of its performance under this
                  Agreement for each Specified Activity and its compliance with
                  the Performance Criteria. U S WEST shall provide to Pac-West
                  such records in a self-reporting format. The Parties agree
                  that such records shall be deemed Proprietary Information.

53.      Entire Agreement

          53.1    This Agreement shall include the Attachments, Appendices and
                  other documents referenced herein all of which are hereby
                  incorporated by reference, and constitutes the entire
                  agreement between the Parties and supersedes all prior oral or
                  written agreements, representations, statements, negotiations,
                  understandings, proposals and undertakings with respect to the
                  subject matter hereof.

         53.2     If a provision contained in any U S WEST tariff conflicts with
                  any provision of this Agreement, the provision of this
                  Agreement shall control, unless otherwise ordered by the FCC
                  or the Commission.

54.      Reservation of Rights

         54.1     The Parties acknowledge that the terms of this Agreement were
                  established pursuant to an order of the Commission. Any or all
                  of the terms of this Agreement may be altered or abrogated by
                  a successful challenge to this Agreement (or the order
                  approving this Agreement) as permitted by applicable law. By
                  signing this Agreement, neither Party waives its right to
                  pursue such a challenge.

         54.2     The Parties enter into this Agreement without prejudice to any
                  position they may have taken previously, or may take in the
                  future in any legislative, regulatory, or other public forum
                  addressing any matters, including matters related to the types
                  of arrangements prescribed by this Agreement

                                       82
<PAGE>

         IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to be
executed by their respective duly authorized representatives.

Pac-West Telecomm, Inc.**                 U S WEST Communications, Inc.**

/s/ John F. Sumpter                       /s/ Denny Bayers
--------------------------------          ----------------------------------
Signature                                 *Signature

John F. Sumpter                           Denny Bayers
--------------------------------          ----------------------------------
Name Printed/Typed                        Name Printed/Typed

Vice President - Regulation               Director
--------------------------------          ----------------------------------
Title                                     Title

8/13/99                                   9/2/99
--------------------------------          ----------------------------------
Date                                      Date

                                          * Signed as ordered by the
                                          arbitrator/commission in Docket No.
                                          UT-960309. Signature does not indicate
                                          agreement with all aspects of the
                                          arbitrator's decision, nor does it
                                          waive any of U S WEST's right to seek
                                          judicial review of all or part of the
                                          agreement, or to reform the agreement
                                          to conform with the Opinion of the
                                          United States Court of Appeals for the
                                          Eighth Circuit, or any other decision
                                          or opinion following successful
                                          judicial review.

**       This  Agreement is made pursuant to Section 252 (i) of the Act and is
premised upon the Interconnection Agreement between AT&T Communications of the
Pacific Northwest. Inc., a Washington corporation and U S WEST Communications,
Inc. (the "Underlying  Agreement").  The Underlying Agreement was approved by
the Commission on July 11, 1997.

With respect to this Agreement, the Parties understand and agree:

i)       The Parties shall request the Commission to expedite its review and
approval of this Agreement.

ii)      Notwithstanding the mutual commitments set forth herein, the Parties
are entering into this Agreement without prejudice to any positions they have
taken previously, or may take in the future, in any legislative, regulatory, or
other public forum addressing any matters, including those relating to the types
of arrangements contained in this Agreement. During the proceeding in which the
Commission is to review and approve the Agreement, U S WEST may point out that
it has objected, and continues to object, to the inclusion of the terms and
conditions to which it objected in the proceedings involving the approval of the
Underlying Agreement.

                                       83
<PAGE>

iv)      This Agreement contains provisions based upon the decisions and orders
of the FCC and the Commission under and with respect to the Act. Currently,
court and regulatory proceedings affecting the subject matter of this Agreement
are in various stages, including the proceedings where certain of the rules and
regulations of the FCC are being  challenged.  In addition,  there is
uncertainty in the aftermath of the Supreme Court's decision in AT&T Corp. et
al. v. Iowa Utilities Board. Based on that uncertainty, and the regulatory and
judicial proceedings which will occur as a result of that decision, the Parties
acknowledge  that this  Agreement  may need to be changed to reflect any changes
in law. The Agreement has not been corrected to reflect the requirements, claims
or outcomes of any of the Proceedings, although the pricing does reflect the
Commission's most current generic order, if any. Accordingly, when a final,
decision or decisions are made in the Proceedings that automatically change and
modify the Underlying Agreement, then like changes and modifications will
similarly be made to this Agreement. In addition, to the extent rules or laws
are based on regulatory or judicial proceedings as a result of the recent
Supreme Court decision, this Agreement will be amended to incorporate such
changes.

v) Subsequent to the execution of this Agreement, the FCC or the Commission may
issue decisions or orders that change or modify the rules and regulations
governing implementing of the Act. If such changes or modifications alter the
state of the law upon which the Underlying Agreement was negotiated and agreed,
and it reasonably appears that the parties to the Underlying Agreement would
have negotiated and agreed to different term(s) condition(s) or covenant(s) than
as contained in the Underlying Agreement had such change or modification been in
existence before execution of the Underlying Agreement, then this Agreement
shall be amended to reflect such different terms(s), condition(s), or
covenant(s). Where the parties fail to agree upon such an amendment, it shall be
resolved in accordance with the Dispute Resolution provision of this Agreement.

                                       84
<PAGE>

                                                                  Attachment 1

                               TABLE OF CONTENTS

 1. General Principles .....................................................2

 2. Resale Rates and Charges ...............................................2

 3. Construction and Implementation Costs ..................................3

 4. Network Elements........................................................4

 5. Transport and Termination ..............................................4

 6. Number Portability .....................................................5

 7. Collocation - Physical and Virtual .....................................5
<PAGE>

                               RATES and CHARGES

1.       General Principles

         1.1      All rates provided under this Agreement shall remain in effect
                  for the term of this Agreement unless they are not in
                  accordance with all applicable provisions of the Act, the
                  rules and regulations of the FCC, or the Commission's rules
                  and regulations.

         1.2      Except as otherwise specified in this Agreement, as approved
                  or ordered by the Commission, or as agreed to by the Parties
                  through good faith negotiations, nothing in this Agreement
                  shall prevent a Party through the dispute resolution process
                  described in this Agreement from seeking to recover the costs
                  and expenses, if any, it may incur in (a) complying with and
                  implementing its obligations under this Agreement, the Act,
                  and the rules, regulations and orders of the FCC and the
                  Commission, and (b) the development, modification, technical
                  installation and maintenance of any systems or other
                  infrastructure which it requires to comply with and to
                  continue complying with its responsibilities and obligations
                  under this Agreement.

         1.3      The rates in this Agreement are interim in nature. Such rates
                  are as described in the Interim Pricing Schedule attached as
                  Attachment I (the "Pricing Schedule"). Permanent rates will be
                  established by the Commission in its generic costing and
                  pricing Docket UT-960369.(1)

2.       Resale Rates and Charges

         All services that U S WEST provides at retail to subscribers who are
         not Telecommunications Carriers shall be provided at wholesale rates as
         provided in the Pricing Schedule.

         2.1      A Customer Transfer Charge (CTC) as specified in the Pricing
                  Schedule applies when transferring any existing account or
                  lines to Pac-West.(2)

         2.2      (Intentionally left blank for numbering consistency)

         2.3      If the resold services are purchased pursuant to tariffs and
                  the tariff rates change, charges billed to Pac-West for such
                  services will be based upon the new tariff rates less the
                  applicable wholesale discount as agreed to herein. The new
                  rate will be effective upon the tariff effective date.

         2.4      A Subscriber Line Charge (SLC) will continue to be paid by
                  Pac-West without discount for each local exchange line resold
                  under this Agreement. All federal and state rules and
                  regulations associated with SLC or as found in the applicable
                  tariffs also apply.

         2.5      Pac-West will pay to U S WEST the PIC change charge without
                  discount associated with Pac-West end user changes of
                  inter-exchange or intraLATA carriers.

----------

1 Per Order at page 3.
2 Per Supplemental Order at 3. See also, Order at page 24.

                                     Page 2
<PAGE>

         2.6      Pac-West agrees to pay U S WEST at the wholesale discount rate
                  when its end user activates any services or features that are
                  billed on a per use or per activation basis (e.a., continuous
                  redial, last call return, call back calling, call trace,
                  etc.). U S WEST shall provide Pac-West with detailed billing
                  information per applicable OBF standards unless otherwise
                  agreed to by the Parties as necessary to permit Pac-West to
                  bill its end users such charges.

         2.7      (Intentionally left blank for numbering consistency)

         2.8      Nonrecurring charges will be billed as approved by the
                  Commission.

         2.9      (Intentionally left blank for numbering consistency)

         2.10     (Intentionally left blank for numbering consistency)

         2.11     Resale prices shall be wholesale rates determined on the basis
                  of retail rates charged to subscribers for the
                  Telecommunications Service requested, excluding the portion
                  thereof attributable to any marketing, billing, collection and
                  other costs that will be avoided by U S WEST, as specified in
                  the Act, by the FCC and the Commission. U S WEST shall be
                  obligated to offer its volume and term discount service plans
                  to Pac-West provided that Pac-West complies with the volume
                  and term requirements contained therein. If selected by
                  Pac-West, Pac-West will receive either the volume discounted
                  rate or 16 percent (off the original retail rate), whichever
                  is the larger discount With the exception of the preceding,
                  Pac-West shall not be required to agree to volume or term
                  commitments as a condition for obtaining Local Resale.(3)

         2.12     U S WEST shall bill Pac-West and Pac-West is responsible for
                  all applicable charges for the Resale Services. Pac-West shall
                  be responsible for all charges associated with services that
                  Pac-West resells to an end user.

3.       Construction and Implementation Costs

         3.1      U S WEST may assess Pac-West up-front, nonrecurring charges
                  for construction costs associated with a service only if U S
                  WEST assesses its own end users such charges for similar
                  construction and also demonstrates to the Commission that it
                  is customary industry practice to charge end users for similar
                  costs. If a tariff exists, such charges are deemed to be a
                  customary industry practice. U S WEST shall not double recover
                  nonrecurring construction charges. If another CLEC or U S WEST
                  receives a benefit from the construction or other activity for
                  which Pac-West is charged, Pac-West is entitled to recover
                  contribution from the CLEC, or, if applicable, U S WEST as a
                  beneficiary, for a share of the costs.(4)

         3.2      (Intentionally left blank for numbering consistency)

         3.3      (Intentionally left blank for numbering consistency)

----------

3  Per Order at page 19, Issue 33.
4  Per Order at pages 22-23, Issue 39.

                                     Page 3
<PAGE>

         3.4      A quote for the Pac-West portion of a specific job will be
                  provided to Pac-West. The quote will be in writing and will be
                  binding for ninety (90) days after the issue date. When
                  accepted, Pac-West will be billed the quoted price and
                  construction will commence after receipt of payment. If
                  Pac-West chooses not to have U S WEST construct the
                  facilities, U S WEST reserves the right to bill Pac-West for
                  the expense incurred for producing the engineered job design.

         3.5      Pac-West shall make payment of fifty percent (50%) of the
                  nonrecurring charges and fees upon acceptance of the quotation
                  with the remainder due upon completion of the construction. In
                  the event that Pac-West disputes the amount of U S WEST's
                  proposed construction costs, Pac-West shall deposit fifty
                  percent (50%) of the quoted construction costs into an
                  interest bearing escrow account prior to the commencement of
                  construction. The remainder of the quoted construction costs
                  shall be deposited into the escrow account upon completion of
                  the construction. Upon resolution of the dispute, the escrow
                  agent shall distribute amounts in the account in accordance
                  with the resolution of such dispute and any interest that has
                  accrued with respect to amounts in the account shall be
                  distributed proportionately to the Parties. The pendency of
                  any such dispute shall not affect the obligation of U S WEST
                  to complete the requested construction.

4.       Network Elements

         4.1      U S WEST shall not be required to deaverage rates for
                  unbundled network elements unless rates for retail services
                  are deaveraged.(5)

         4.2      Unbundled network elements not required by this Agreement will
                  be acquired pursuant to the BFR process and will be priced at
                  TELRIC with a reasonable allocation of forward looking common
                  costs.(6)

         4.3      (Intentionally left blank for numbering consistency)

         4.4      (Deleted per Arbitrators Recommendations(7)

         4.5      Pricing for Toll and Assistance Operator Services shall be
                  determined upon request.

5.       Transport and Termination

         5.1      The parties will utilize bill and keep as a reciprocal
                  compensation mechanism until otherwise agreed between the
                  parties or ordered by the Commission.(8)

         5.2      In the event bill and keep is terminated and the Parties have
                  not agreed on reciprocal compensation arrangements to replace
                  bill and keep or the Commission has not ordered replacement
                  arrangements, the determination of an appropriate reciprocal
                  compensation

----------

5  Per Order at pages 44-45, Issue 75.
6  Per Order at page 46, Issue 79.
7  Per Recommendations at pages 3-7, Issues 29-32.
8  Per Order at page 47, Issues 81-90.

                                     Page 4
<PAGE>

                  mechanism shall be resolved in accordance with the dispute
                  resolution procedures described in Section 27.

6.       Number Portability

         6.1      In regard to pricing of Interim Number Portability ("INP"),
                  any allocation of costs shall be in a competitively neutral
                  manner, and the total costs of RCF or of any other INP
                  methodology shall, if not accommodated on a bill and keep
                  basis, be allocated in proportion to all telecommunications
                  carriers share of active working numbers.(9)

         6.2      Access charges for terminating IntraLATA toll and InterLATA
                  minutes shall be recovered by each Party's billing Inter
                  Exchange Carriers (IXCs) separately for each Party's portion
                  of the access charges, based on the functions and facilities
                  provided by carrier for call forwarding and termination. In
                  calculating such recovery based upon the functions and
                  facilities provided by a carrier, it shall be recognized that
                  U S WEST may receive compensation for INP costs by means of
                  the methodology outlined in Section 6.1 preceding.(10)

         6.3      U S WEST shall recover the non-recurring cost of interim
                  number portability from Pac-West. The non-recurring charges
                  for INP are provided in the Pricing Schedule.

         6.4      Pac-West may request U S WEST to provide Pac-West call detail
                  records identifying each IXC which are sufficient to allow
                  Pac-West to render bills to IXCs for calls IXCs place to
                  ported numbers in the U S WEST network which U S WEST forwards
                  to Pac-West for termination. To the extent U S WEST is unable
                  to provide billing detail information within a reasonable time
                  frame, the Parties may agree on an interim method to share
                  access revenues pursuant to a mutually agreed upon surrogate
                  approach.

7.       Collocation - Physical and Virtual

         See Pricing Schedule, attached to this Attachment.

----------

9    Per Order at page 26, Issue 51.
10   Per Order at pages 26-27, Issue 51.

                                     Page 5
<PAGE>

                                               Attachment 1 - Pricing Schedule

                             U S WEST and PAC-WEST
                            INTERIM PRICING SCHEDULE

<TABLE>
<CAPTION>
<S>                                                                                            <C>
RESALE

Wholesale Discount Rate                                                                                  16%

Customer Transfer Charge - per Line                                                                     5.00

UNBUNDLED NETWORK ELEMENTS

Unbundled Loop

       Network Interface Device                                                                $        0.53
       Unbundled Loop - Recurring - per Line per Month                                         $       11.33
       Unbundled Loop - Residential Non-Recurring Charge                                       $           *
       Unbundled Loop - Business Non-Recurring Charge                                          $           *

                   * Note: Per the Commission's Approval at page 13, paragraph
                     H, the interim rate for an unbundled loop shall equal the
                     existing retail non recurring charge minus the avoided cost
                     discount. The Residential charge would be the 1 FR tariffed
                     rate minus the 16% wholesale discount and the Business
                     charge would be the 1 FB rate minus the 16% wholesale
                     discount.

Local Switching

       Port - per Line per Month                                                               $        1.04
       Usage - per Minute                                                                      $      0.0018

Transport

Dedicated Transport

       DSO - per Month                                                                            4.26

       DS1                                                                Fixed               Per Mile
                                                                          -----               --------
              0 Miles                                                     None                    None
              Over 0 to 8 Miles                                    $      41.72          $        0.67
              Over 8 to 25 Miles                                   $      41.72          $        0.84
              Over 25 to 50 Miles                                  $      41.73          $        2.97
              Over 50 Miles                                        $      41.73          $        3.49

       DS3                                                                 Fixed              Per Mile
                                                                           -----              --------
       0 Miles                                                           None                   None

       Over 0 to 8 Miles                                           S     283.30          $      13.83

       Over 8 to 25 Miles                                          $     284.17          $      15.03
       Over 25 to 50 Miles                                         $     291.31          $      39.19

       Over 50 Miles                                               $     293.91          $      44.74
</TABLE>

                                     Page 6
<PAGE>

                                                Attachment 1 -Pricing Schedule
<TABLE>
<CAPTION>
<S>                                                                                     <C>
       Multiplexing - per Arrangement
              DS1 to DS3 - Recurring                                                    $   218.58
              DS1 to DS3 - Non-Recurring                                                $   418.45

Tandem Switched Transport

              Tandem Switching - per Minute                                             $   0.0014
              Tandem Transmission                                        Per Minute   Per Minute Per Mile
                                                                         ----------    -------------------
                    0 Miles                                                 None            None

                     Over 0 to 8 Miles                                   $ 0.000411     $ 0.000009
                     Over 8 to 25 Miles                                  $ 0.000411     $ 0.000007
                     Over 25 to 50 Miles                                 $ 0.000408     $

                     Over 50 Miles                                       $ 0.000409     $ 0.000015

Tandem Switching - per Minute                                                           $   0.0014

Signaling

       Signaling Link - per Link per Month                                              $    45.81

       Signaling Link - First Link - Non-Recurring                                      $   504.68

       Signaling Link - Each Additional Link - Non-Recurring                            $    72.42

                     Note: Per the Commission's letter dated July 18, 1997,
                     stating that the Commission's Approval also adopted U S
                     WEST's proposed Signaling Link Non-Recurring Charges.

       Signal Transfer Point - per Message                                              $  0.00004
       Service Control Point / Database - per Message                                   $  0.00095

Operator Systems

       Directory Assistance - per Line per Month                                        $  0.14106
       Busy Line Verify - per Call                                                      $     0.72
       Busy Line Interrupt - per Call                                                   $     0.87
Transport and Termination                                                            Bill and Keep

INTERIM NUMBER PORTABILITY
       Non-Recurring

              Service Establishment - per Switch per Route                              $    43.80
              Service Establishment - Additional Number Ported or changes to existing
                     Number - per Number Ported                                         $     9.49
              Additional and Consecutive Numbers Ported on same account name and
                     Consecutive Numbers - per Number Ported                            $     7.05
</TABLE>

                                     Page 7
<PAGE>

                                               Attachment 1 - Pricing Schedule
<TABLE>
<CAPTION>
<S>                                                                                            <C>
VIRTUAL AND PHYSICAL COLLOCATION

       Quote Preparation Fee                                                                   $   2,437.30

                                                                           Recurring          Non-Recurring
                                                                           ---------          -------------

Entrance Facility - 2 fibers                                             $        2.07         $   1,307.45
2-wire DSO EICT                                                          $        1.41         $     339.61
4-wire DSO EICT                                                          $        1.79         $     339.61

DS1 EICT                                                                 $        9.12         S     405.02
DS3 EICT                                                                 $       31.93         $     433.23

DS1 EICT - regeneration                                                  $       14.38         S     405.02

DS3 EICT - regeneration                                                  $      94.24          S     433.23

                                                                                               Non-Recurring
                                                                                               -------------
Entrance Enclosure
       Manhole - per Month per Manhole                                                         $       27.61 ***
       Handhold - per Month per Handhold                                                       $       15.22 ***
Conduit and Interduct from Entrance Enclosure to Cable Vault - per Foot per Month              $        0.42 ***
Core Drill - per Core                                                                          $      363.13 ***
Riser from Cable Vault to Customer Designated Equipment - per Foot per Month                   $        0.47 ***
Fiber Optic Cable (24 fiber increments) - per Foot per Month                                   $        0.05 ***
Fiber Cable Placement in Conduit and Riser - per Foot                                          $        1.66 ***

Copper Cable per 25 pair - per Month                                                           $       0.012 ***

Copper Cable Splicing - per Splice                                                             $       91.27 ***

Copper Cable Placement in Conduit and Riser - per Foot                                         $        1.66 ***

Coax Cable RG59 - per Foot per Month                                                           $        0.20 ***

              Note: Per the Commission's Approval at page 13, paragraph 1, to
              the extent there is any conflict between these prices and the
              previous collocation prices, the previous prices shall apply.

Cable Splicing
       Per Setup                                                                               S      103.59
       Per Fiber Spliced                                                                       $       12.95
48 Volt Power - per Ampere per Month                                                           $       13.45

48 Volt Power Cable                                                         Recurring          Non-Recurring
                                                                            ---------          -------------
       20 Ampere Capacity                                                          0.15        $       68.37
       40 Ampere Capacity                                                 $        0.20        $       92.71
       60 Ampere Capacity                                                 $        0.22        $      104.42

Equipment Bay - per Shelf                                                                      $        8.58

                                                                          Regular Hours         After Hours
                                                                          -------------         -----------
Inspector - per 1/2 Hour                                                  $       28.62        $       37.20
Training - per 1/2Hour                                                    $       25.36                 None
Engineering - per %Hour                                                   $       24.73        $       33.09
Installation - per 1/2Hour                                                $       28.62        $       37.20
Maintenance - per %Hour                                                   $       25.36        $       33.73
</TABLE>

                                     Page 8
<PAGE>

                                               Attachment 1 - Pricing Schedule

<TABLE>
<CAPTION>
<S>                                                                                            <C>
Rent (w/ Maintenance) - per square foot - Zone 1                                               $        2.75
Rent (w/ Maintenance) - per square foot - Zone 2                                               $        2.26
Rent (w/ Maintenance) - per square foot - Zone 3                                               $        2.06
Cage / Hard Wall Enclosure                                                                               ICB ****
</TABLE>

           ****   Note: This element will be priced on an individual case basis,
                  per the Commission's Approval at page 13, paragraph J.

                                     Page 9
<PAGE>

                                                                  Attachment 2

                               TABLE OF CONTENTS

1. DESCRIPTION                                                             1

2. GENERAL TERMS AND CONDITIONS FOR RESALE                                 2

3. BASIC SERVICE REQUIREMENTS                                              3

4. REQUIREMENTS FOR SPECIFIC SERVICES                                      3

5. SERVICE FUNCTIONS                                                       8

6. SECURITY AND LAW                                                        8

7. ORDERING AND MAINTENANCE                                                9

8. CHANGES IN RETAIL SERVICE                                               9

9. CUSTOMER AUTHORIZATION PROCESS                                         10

10. PAC-WEST RESPONSIBILITIES                                             11

11. PRICING                                                               11

12. DEPOSIT                                                               11

                                       1
<PAGE>

                                     RESALE

1.       Description

         1.1      Pac-West may resell to any and all classes of end-users
                  Telecommunications Services obtained from U S WEST under this
                  Agreement, except that (i) residential services may not be
                  resold to business customers and business service may not be
                  resold to residential customers and (ii) Lifeline Assistance,
                  Link-up Services, and Telecommunications Relay Services may be
                  resold only to those customers eligible for those services.(1)
                  U S WEST will not prohibit, nor impose unreasonable or
                  discriminatory conditions or limitations on the resale of its
                  Telecommunications Services. The foregoing shall permit
                  without limitation, the resale of Telecommunications Services
                  to another Reseller.

         1.2      U S WEST will also make the following services available for
                  resale: residential basic exchange, Centrex Plus, Operator
                  Services, Directory Assistance, Optional Calling Plans, Volume
                  Discount Plans, Discounted Feature Packages, Private Line
                  Transport, negotiated contract arrangements, Business Basic
                  Exchange, PBX Trunks, Frame Relay Service, ISDN, listings,
                  features, IntraLATA toll, AIN Services and WATS. This list of
                  services is neither all inclusive nor exclusive.

         1.3      At the request of Pac-West and pursuant to the requirements of
                  the Act, and FCC rules and state regulations, U S WEST shall
                  make available to Pac-West for resale any Telecommunications
                  Services that U S WEST currently provides or may offer
                  hereafter, including, but not limited to, Telecommunications
                  Services offered through promotions of more than ninety (90)
                  days duration, contract service arrangements, special
                  arrangements, and discount plans.(2) Resale discounts may vary
                  from the standard resale discount, subject to the approval of
                  the Commission.

         1.4      This Section 1 describes several services which U S WEST shall
                  make available to Pac-West for resale pursuant to this
                  Agreement. This description of services is neither all
                  inclusive nor exclusive. Except as may be noted elsewhere in
                  this Agreement, all services or offerings of U S WEST which
                  are to be offered for resale pursuant to the Act are subject
                  to the terms herein, even though they are not specifically
                  enumerated or described.

         1.5      U S WEST shall not be required to make inside wire or voice
                  mail services available to Pac-West for resale.(3)

                  1.5.1    Voice Mail

                           U S WEST shall make available the SMDI-E ("Station
                           Message Desk Interface Enhanced"), where available,
                           or SMD1 (Station Message Desk Interface), where
                           SMDI-E is not available, feature capability allowing
                           for Voice Mail Services. U S WEST shall make
                           available, where available, the MWI (Message Waiting

----------

1  Per Order at page 16, Issue 29.
2  Per Order at page 15, Issue 27.
3  Per Recommendations at page 21, Issue 126. Per Order at page 13-15, Issue 27.
   Modified per Approval at page 13, paragraph E.

                                       1
<PAGE>

                       Indicator) stutter dialtone and message waiting light
                       feature capabilities. U S WEST shall make available
                       CF-B/DA (Call Forward on Busy/Don't Answer), CF/B (Call
                       Forward on Busy), and CF/DA (Call Forward Don't Answer)
                       feature capabilities allowing for Voice Mail services.

         1.6      Grandfathered Services

                  U S WEST shall offer for resale to Pac-West all grandfathered
                  services. For purposes of this Agreement, a grandfathered
                  service is a service that U S WEST no longer offers to new
                  subscribers or a class of new subscribers. Pac-West shall be
                  notified of any U S WEST request for the termination of
                  service and/or its grandfathering filed with the Commission or
                  U S WEST's intent to grandfather/withdraw a service at least
                  thirty (30) calendar days prior to the effective date of such
                  grandfathering or intended termination. The form of
                  notification may be either in written or electronic form.

         1.7      N11 Service

                  Pac-West shall have the right to resell any N 11 service,
                  including, but not limited to, 411 and 911 services.

         1.8      Promotions

                  Promotions of ninety (90) days or less need not be made
                  available to Pac-West at the wholesale discount rate.(4)

         1.9      The specific business process requirements and systems
                  interface requirements are set forth in Attachment 5 and
                  Attachment 6 to this Agreement.

2.       General Terms and Conditions for Resale

         2.1      Primary Local Exchange Carrier Selection. U S WEST shall apply
                  the principles set forth in Section 64.1100 of the FCC Rules,
                  47 C.F.R. Section 64.1100, as implemented, to the process for
                  end-user selection Of 2 primary local exchange carrier. In
                  accordance with the customer authorization process described
                  elsewhere in this Agreement, U S WEST shall not require
                  notification from the customer, another carrier, or another
                  entity, in order to process an Pac-West order for local
                  service for a customer.

         2.2      Except where otherwise provided, Pac-West, or Pac-West's
                  agent, shall act as the single point of contact for its end
                  users' service needs, including, without limitation, sales,
                  service design, order taking, provision, change orders,
                  training, maintenance, trouble reports, repair, post-sale
                  servicing, billing, collection and inquiry. Pac-West shall
                  inform its end users that they are customers of Pac-West for
                  resold services. Pac-West's end users who inadvertently
                  contact U S WEST with questions regarding their Pac-West
                  service will be instructed to contact Pac-West. U S WEST end
                  users who inadvertently contact Pac-West with questions
                  regarding their U S WEST service will be instructed to contact
                  U S WEST. Nothing in this Agreement shall be deemed to
                  prohibit either Party from discussing its products and
                  services with customers of the other Party who solicit such
                  information or who are directly contacted by a Party.

----------

4 Per Order at page 15, Issues 27-28.

                                       2
<PAGE>

3.       Basic Service Requirements

         3.1      Call Types

                  3.1.1    U S WEST shall provide the following call types,
                           features and functions to Pac-West and its end users
                           with no loss of feature or functionality: (a) dial
                           tone and ringing; (b) capability for either dial
                           pulse or touch tone; (c) flat and measured services:
                           (d) speech recognition as available with other custom
                           calling and CLASS features; (e) Same extended area
                           service free calling area: (f) 1 + intraLATA toll
                           calling; (g) access to interLATA toll calling; (h)
                           access to international calling; (i) lines as well as
                           trunks (DID, DOD); 0) analog and digital private line
                           - all speeds; (k) off-premises extensions; (1)
                           Centrex, and (m) ISDN.

         3.2      U S WEST will provide access for Pac-West and all its end user
                  customers to all call types, including, but not limited to,
                  500, 700, 800, 900, exchanges and dial around services -(i
                  OXXX).

         3.3      U S WEST shall impose no restrictions on customer's calling
                  (e.g., there should not be a 750 minute limit an flat rate
                  calling).

         3.4      U S WEST will provide pre-subscription services for interLATA
                  toll services in accordance with currently accepted methods
                  and procedures.

         3.5      Features Requirements

                  3.5.1    U S WEST will provide Pac-West the ability to suspend
                           and restore customer service, including vacation
                           suspension service, at the direction of Pac-West.

                  3.5.2    End Office Features. U S WEST will provide to
                           Pac-West the same end office features available to U
                           S WEST's end users, including, but not limited to,
                           CLASS features, Custom Calling features, and AIN
                           features.

                  3.5.3    Call Blocking Features. U S WEST will provide to
                           Pac-West the same call blocking features as are
                           available to U S WEST's own Customers.

         3.6      Upon request, U S WEST shall provide Pac-West a list, in an
                  agreed upon format by central office, of all the
                  Telecommunications Services, features and functions offered by
                  U S WEST within sixty (60) days after the Effective Date of
                  this Agreement and shall provide updates to such lists as
                  further described in Attachment 5. U S WEST shall also provide
                  an electronic access method for Pac-West to ascertain the
                  service availability of a particular USOC in a given central
                  office.

4.       Requirements for Specific Services

         4.1      IntraLATA Toll

                  U S WEST will provide Pac-West its intraLATA toll service to
                  Pac-West for resale where 1 + intraLATA toll presubscription
                  is not available.

         4.2      Private Line Services

                  The following private line services shall be made available
                  without restriction from U S WEST: (a) voice grade private
                  line services; (b) off premise extensions; (c) foreign

                                       3
<PAGE>

                  exchange line service; (d) point-to-point and multi-point
                  digital services (e.g., 9.6 kbps-56 kbps; fractional DS-1);
                  (e) DS-1 Services: (f) DS-3 services: (g) OC-3 service (where
                  available); (h) frame relay service; (i) packet switched
                  services; 0) switched digital services: and (k) other private
                  line services as they are made available.

         4.3      Centrex Requirements

                  4.3.1    At Pac-West's option and as they are available to U S
                           WEST's own end users via interstate tariffs and state
                           tariffs, price lists, price schedules, catalogs, or
                           Individual Case Basis, Pac-West may purchase a
                           single, any combination, or the entire set of Centrex
                           features, including Centrex Management System (CMS)
                           or its equivalent as described in Attachment 5. The
                           Centrex service provided for resale will meet the
                           requirements set forth in the following provisions of
                           this Section 4.3.

                  4.3.2    All service levels and features of Centrex service
                           provided by U S WEST for resale by Pac-West shall be
                           at parity with levels and features provided to U S
                           WEST's own customers or as mutually agreed upon by
                           the Parties.

                  4.3.3    Pac-West may aggregate the Centrex local exchange and
                           intraLATA traffic usage of Pac-West subscribers to
                           the extent U S WEST makes such aggregation available
                           to itself or to its end users, Customers, or
                           Affiliates.

                  4.3.4    Pac-West may aggregate multiple Pac-West customers on
                           dedicated access facilities.

                  4.3.5    U S WEST shall make CMS information available to
                           Pac-West at the common block level via an electronic
                           interface, as provided to U S WEST's own end users.

                  4.3.6    Pac-West may use remote call forwarding in
                           conjunction with Centrex service to provide service
                           to Pac-West local service Customers residing outside
                           of the geographic territory in which U S WEST
                           provides local exchange service. However, U S WEST is
                           not obligated to provide facilities outside its
                           service territory.

                  4.3.7    Pac-West may purchase any and all levels of Centrex
                           service for resale, without restriction on the
                           minimum or maximum number of lines that may be
                           purchased for any one level of service, equivalent to
                           what is offered to U S WEST's own end users.

                  4.3.8    U S WEST will provide to Pac-West the ability to
                           suppress the need for Pac-West customers to dial "9"
                           when placing calls outside the Centrex system.

                  4.3.9    U S WEST shall make available to Pac-West for resale,
                           at no additional charge, intercom calling among all
                           Pac-West customers within a common block who utilize
                           resold Centrex service.

         4.4      CLASS and Custom Features Requirements

                  Pac-West may purchase a single, any combination, or the entire
                  set of CLASS and custom features and functions, on a
                  customer-specific basis. CLASS features shall include, but not
                  be limited to: caller identification, name and number, call
                  screening; call tracing; and automatic call back on busy
                  (*69). U S WEST shall provide to Pac-West a list of all such
                  CLASS and custom features and functions within ten (10) days
                  of the Effective Date of this Agreement and shall provide
                  updates to such list when new features and functions become
                  available.

                                       4
<PAGE>

4.5      Customer Financial Assistance Programs

         4.5.1    Local services provided to low-income subscribers, pursuant to
                  requirements established by the appropriate state regulatory
                  body, include programs such as Lifeline, Voluntary Federal
                  Customer Financial Assistance Program, and Link-Up America
                  ("Voluntary Federal Customer Financial Assistance Programs").
                  When a U S WEST subscriber eligible for the Voluntary Federal
                  Subscriber Financial Assistance Programs or other similar
                  state programs chooses to obtain local service from Pac-West U
                  S WEST shall forward information available to U S WEST
                  regarding such subscriber's eligibility to participate in such
                  programs to Pac-West and in electronic format when available
                  in accordance with the procedures set forth herein.

         4.5.2    U S WEST shall offer for resale Lifeline and Link-Up Service;
                  provided, however, that Pac-West may only resell Lifeline and
                  Link Up Service to those Customers eligible to receive such
                  services.(5) U S WEST shall make Telephone Relay Service
                  available to Pac-West for use by Pac-West Customers who are
                  speech or hearing-impaired.(6) U S WEST will provide
                  information about the certification process for the
                  provisioning of Lifeline, Link-up, Telephone Relay' and
                  similar services. U S WEST will forward to Pac-West, in
                  electronic format (when available), information available to U
                  S WEST regarding a subscriber's program eligibility, Status
                  and certification when a U S WEST subscriber currently an any
                  U S WEST telephone assistance program changes service to
                  Pac-West as their local exchange carrier. U S WEST will
                  cooperate in obtaining any subsidy associated with a
                  subscriber transfer to Pac-West.

                  4.5.2.1  In connection with the transfer of a customer from U
                           S WEST to Pac-West U S WEST shall provide to Pac-West
                           a customer profile, including customer name, billing
                           and residence address, billing telephone number(s),
                           eligibility for Voluntary Federal Customer Financial
                           Assistance Program, Telephone Relay Services(8) and
                           other similar services, and identification of U S
                           WEST features and services subscribed to by the
                           customer.

4.6      Discount Plans and Services

         4.6.1    In accordance with FCC rules and regulations, U S WEST shall
                  offer for resale all Discount Plans and Services.

         4.6.2    Pac-West can utilize any volume discounts that U S WEST makes
                  available to its end user customers.

4.7      Hospitality Service

         U S WEST shall provide all blocking, screening, and all other
         applicable functions available for hospitality lines utilized as such.

----------

5   Per Order at page 15, Issue 29.
6   Per Order at page 14, Issues 27-28.
7   Per Order at page 14, Issues 27-28.
8   Per Order at page 14, Issues 27-28.

                                       5
<PAGE>

4.3      Telephone Line Number Calling Cards

         Effective ten (10) Business Days after the date of an end-user's
         subscription to Pac-West service or within twenty-four (24) hours after
         Pac-West has notified U S WEST that it has replaced the subscriber's
         calling card, whichever is earlier, U S WEST will terminate its
         existing telephone line number-based ("TLN"-based) calling cards and
         deactivate any U S WEST-assigned telephone line calling card number
         subaccount and PIN (including area code) from the LIDB. Pac-West may
         issue a new telephone calling card to such customer, utilizing the same
         TLN, and Pac-West shall have the right to enter such TLN in the LIDB
         for calling card validation purposes. U S WEST will assume
         responsibility for billing its calling card calls that appear before
         the card is terminated. Nothing in this section shall prohibit U S WEST
         from terminating calling card service to U S WEST customers who have
         been determined to be a credit risk, according to U S WEST's normal
         business practices.

         4.8.1    Except as provided above, the Parties will cooperate in the
                  deactivation and activation of calling cards and will make
                  reasonable efforts to minimize the time a customer is without
                  an active calling card.

         4.8.2    U S WEST shall not prohibit Pac-West from issuing a new
                  telephone calling card to an Pac-West customer utilizing the
                  same TLN and Pac-West shall have the right to enter the TLN in
                  the LIDB for calling card verification purposes.

         4.8.3    U S WEST will provide Pac-West the ability to utilize U S
                  WEST's LIDB for calling card validation.

4.9      U S WEST shall make engineering support available to Pac-West for
         Resale Services on the same basis as it provides such support for U S
         WEST end users. To the extent the cost of such engineering support has
         been considered an avoided cost in the development of the avoided cost
         discount, the cost of such engineering support shall be borne by
         Pac-West.

4.10     Payphone Services

         U S WEST agrees to sell for resale all tariffed PAL services at an
         appropriate wholesale discount to be determined by the Commission.

         4.10.1   U S WEST shall offer for resale, at a minimum, the following
                  Coin Line, PAL, and PAL Coinless features:

                  Billed Number Screening
                  Ability to "freeze" PIC selection
                  One (1) bill per fine and/or multiple lines per BAN
                  Point of demarcation at the Network Interface location
                  Detailed billing showing all 1 + traffic on paper, diskette
                  or electronic format
                  Touch-tone service
                  Option for listed or non-listed numbers
                  Access to 911 service
                  One (1) directory per line

                  U S WEST agrees to sell to Pac-West all PAL services under the
                  same terms and conditions that U S WEST provides such services
                  to itself

                                       6
<PAGE>

         or any other Person, including volume and wholesale discounts, or as
         otherwise approved by the Commission, if at all.(9)

4.10.2   At a minimum, U S WEST shall offer for resale the following Coin Line
         features:

         Access to all central office intelligence required to perform answer
         defection, coin collection, coin return, and disconnect
         Answer Detection
         Option to block all 1+ calls to international destinations
         IntraLATA Call Timing
         Option of one-way or two-way service on line
         Flat Rate Service, where available
         Originating line screening
         U S WEST central office intelligence for rating and other functions
         Option of measured service, where available
         Ability to block any 1+ service that cannot be rated by the coin
         circuits/TSPS/OSPS to the extent provided on U S WEST coin lines
         Protect against clip on fraud to the extent provided on U S WEST
         coin lines
         Protect against blue box fraud to the extent provided on U S WEST
         coin lines
         Provision of Information Digit 27

4.10.3   At a minimum, U S WEST shall offer for resale the following PAL and PAL
         Coinless features:

         Originating line screening
         Two-way service option
         Flat rate service based on rate groups, where available
         Option of one-way service on the line, where available
         Option of measured service, where available
         Ability to keep existing serving telephone numbers if cutover to
         Pac-West resale line
         Incoming/outgoing screening
         Provision of Information Digit 07
         Provision of International Toll Denial Recognition Tone, when available

4.10.4   At a minimum, U S WEST shall offer for resale the following PAL Coin
         feature:

         Blocking for 1 + international, 1 0XXXX1 + international, 101 XXXX1 +
         international,
         1+900, N 11, 976 and option to block all 1-700 and 1-500 calls;
         Line side supervision option

4.10.5   At a minimum, U S WEST shall offer for resale the following PAL
         Coinless feature:

         Blocking for 1 + international, 10XXXX1 + international, 101XXXX1
         +International,
         1+900, N1 1, 976, and 7 digit local

4.10.6   (intentionally left blank for numbering consistency)

4.10.7   U S WEST shall provide installation intervals to Pac-West for ordering,
         call transfer, billing, and PIC changes in accordance with performance
         standards that are

----------

9   Per Recommendations at page 22, Issue 140.

                                       7
<PAGE>

                          established by the Commission, pursuant to subsequent
                          agreement between the Parties or as provided to any
                          other Person.

5.       Service Functions

         5.1      U S WEST shall provide Pac-West with the information available
                  to U S WEST that Pac-West will need to certify subscribers who
                  transfer from U S WEST as exempt from charges (including
                  taxes), or eligible for reduced charges associated with
                  providing services.

         5.2      U S WEST shall provide Pac-West with appropriate notification
                  of all area transfers with line level detail one hundred
                  twenty (120) days before service transfer, and will also
                  notify Pac-West within one hundred twenty (120) days before
                  such change or any LATA boundary changes.

         5.3      U S WEST will work cooperatively with Pac-West in practices
                  and procedures regarding the handling of law enforcement and
                  service annoyance calls.

         5.4      Support Functions

                  5.4.1    Routing to Directory Assistance, Operator and Other
                           Services

                           5.4.1.1  U S WEST shall make available to Pac-West
                                    the ability to route:

                                    (a)      all Local Directory Assistance
                                             calls (411, (NPA) 555-1212) dialed
                                             by Pac-West Customers directly to
                                             the Pac-West Directory Assistance
                                             Services platform, where
                                             technically feasible and consistent
                                             with FCC rules; and

                                    (b)      Local Operator Services calls (0+,
                                             0-) dialed by Pac-West Customers
                                             directly to the Pac-West Local
                                             Operator Services platform, where
                                             technically feasible and consistent
                                             with FCC rules. Such traffic shall
                                             be routed over trunk groups between
                                             U S WEST end offices and the
                                             Pac-West Local Operator Services
                                             Platform, using standard Operator
                                             Services dialing protocols of 0+ or
                                             0-.

                           5.4.1.2  All direct routing capabilities described
                                    herein shall permit Pac-West Customers to
                                    dial the same telephone numbers for Pac-West
                                    Directory Assistance and Local Operator
                                    Service as U S WEST customers use to access
                                    similar services.

6.       Security and Law

         6.1      U S WEST will maintain and safeguard all Pac-West customer
                  information according to CPNI privacy guidelines.

         6.2      U S WEST and Pac-West will work jointly in security matters as
                  they relate to Pac-West customers in a resale environment
                  including, but not limited to, harassment and annoyance calls.

         6.3      U S WEST and Pac-West will work jointly to support law
                  enforcement agency requirements including, but not limited to,
                  taps, traces and court orders.

         6.4      U S WEST will work jointly with Pac-West with respect to
                  prevention and settlement of fraud.

                                       8
<PAGE>

         6.5      U S WEST and Pac-West will work jointly to provide access to
                  lines in a hostage situation.

7.       Ordering and Maintenance

         7.1      Pac-West shall transmit to U S WEST the information necessary
                  for the installation (billing, listing and other information),
                  repair, maintenance and post-installation servicing according
                  to U S WEST's standard procedures, as described in the U S
                  WEST resale operations guide that will be provided to Pac-
                  West. When U S WEST's end user or the end user s new service
                  provider discontinues the end user's service in anticipation
                  of moving to another service provider, U S WEST will render
                  its closing bill to the end user effective with the
                  disconnection. Should Pac-West's end user, a new service
                  provider or Pac-West request service be discontinued to the
                  end user, U S WEST will issue a bill to Pac-West for that
                  portion of the service provided to the Pac-West end user. In
                  no event. shall the transition of an end user from U S WEST to
                  Pac-West cause a disconnection of service other than as
                  specifically provided for in this Agreement. It is understood
                  that Pac-West's decision to request a change in class of
                  service (or a conversion to a re-used unbundled loop) at
                  "transition" may involve a few minutes out-of-service. The
                  preceding may be modified by agreement of the Parties.

         7.2      U S WEST will notify Pac-West by fax or other processes as
                  agreed to by the Parties, when an end user moves to another
                  service provider.

         7.3      The new service provider shall be responsible for issuing
                  either a transfer of service or disconnect/new connect order,
                  as appropriate.

         7.4      The Parties agree that they will work cooperatively to develop
                  the standards and processes applicable to the transfer of such
                  accounts that are in arrears.

8.       Changes in Retail Service

         8.1      U S WEST will notify Pac-West of any changes in the terms and
                  conditions under which it offers Telecommunications Services
                  at retail to subscribers who are not telecommunications
                  service providers or carriers, including, but not limited to,
                  the introduction or discontinuance of any features, functions,
                  services or promotions, at least forty-five (45) days prior to
                  the effective date of such change.(10)

         8.2      U S WEST will provide to Pac-West advance notice of the
                  availability of new Telecommunication Services in accordance
                  with Section 23.2 of Part A of this Agreement

         8.3      In the event U S WEST intends to terminate the provisioning of
                  any resold services to Pac-West for any reason, Pac-West shall
                  be responsible for providing any and all necessary notice to
                  its end users of the termination. In no case shall U S WEST be
                  responsible for providing such notice to Pac-West's end users.
                  U S WEST will provide sufficient written notice to Pac-West of
                  U S WEST's intent to terminate a resold service so that
                  Pac-West may notify its customers or intervene in the
                  proceedings on a timely basis consistent with Commission rules
                  and notice requirements.

                                       9
<PAGE>

9.       Customer Authorization Process

         9.1      U S WEST and Pac-West will use the existing PIC process as a
                  model, and the same or similar procedures for changes of local
                  providers. For a local carrier change initiated by Pac-West or
                  an agent of Pac-West to a customer, one of the following four
                  (4) procedures will constitute authorization for the change:
                  (a) Obtain the customer's written authorization (letter of
                  authorization or LOA); (b) Obtain the customers electronic
                  authorization by use of a toll-free number (c) Have the
                  customer's oral authorization verified by an independent third
                  party (third party verification); or (d) Send an information
                  package, including a prepaid, returnable postcard, within
                  three (3) days of the customer's request for a local carrier
                  change, and wait fourteen (14) days before submitting the
                  local carrier change to the previous carrier.

         9.2      It is understood by U S WEST and Pac-West that these
                  procedures may be superseded or modified by FCC rules or
                  industry standards.

         9.3      U S WEST will provide Pac-West authorization for a local
                  carrier change that is initiated by a customer call to
                  Pac-West In this case Pac-West will: (a) maintain internal
                  records verifying the customer's stated intent to switch
                  carriers; and (b) produce the record in case of a slamming
                  dispute consistent with FCC rules.

         9.4      Should an end user dispute or a discrepancy arise regarding
                  the authority of Pac-West to act on behalf of the end user,
                  Pac-West is responsible for providing a written response
                  evidencing its authority to U S WEST within five (5) Business
                  Days of receipt of a written request from U S WEST describing
                  the basis of the dispute or discrepancy. If there is a
                  conflict between the end user designation or Pac-West does not
                  provide a response within five (5) Business Days, U 3 WEST
                  shall honor the designation of the end user. In the event the
                  end user designation is honored by U S WEST as described
                  above, then Pac-West shall remit a slamming charge, if any, in
                  accordance with Section 258 of the Act and Commission Rules.

         9.5      Should an end user dispute or a discrepancy arise regarding
                  the authority of U S WEST to act an behalf of the end user, U
                  S WEST is responsible for providing a written response
                  evidencing its authority to Pac-West within five (5) Business
                  Days of receipt of a written request from Pac-West describing
                  the basis of the dispute or discrepancy. If there is a
                  conflict between the end user designation or U S WEST does not
                  provide a response within five (5) Business Days, Pac-West
                  shall honor the designation of the end user. In the event the
                  end user designation is honored by Pac-West as described
                  above, then U S WEST shall remit a slamming charge, if any, in
                  accordance with Section 258 of the Act and Commission rules.

         9.6      Pac-West shall designate the Primary Interexchange Carrier
                  (PIC) assignments on behalf of its end users for interLATA
                  services and for intraLATA services when intraLATA
                  presubscription is implemented.

                  9.6.1    U S WEST is not required to dedicate a central office
                           code in a U S WEST central office for Pac-West's
                           exclusive use as a reseller of U S WEST's exchange
                           services. Consistent with U S WEST's own internal
                           practices, U S WEST will set aside blocks of numbers
                           within a central office code for Pac-West's use."

----------

(11) Per Order at page 31, Issue 58.

                                       10
<PAGE>

         9.7      When Customers switch from U S WEST to Pac-West, or to
                  Pac-West from any other service provider, such Customers shall
                  be permitted to retain their current telephone numbers if they
                  so desire and if they do not change their service address to
                  an address served by a different central office. U S WEST
                  shall take no action to prevent Pac-West Customers from
                  retaining their current telephone numbers.

10.      Pac-West Responsibilities

         10.1     Pac-West must send to U S WEST either (a) complete and
                  accurate end user listing information for Directory Assistance
                  and 911 Emergency Services using processes mutually agreed to
                  by the Parties, or (b) notification of as is migration.
                  Pac-West must provide to U S WEST accurate end user
                  information to ensure appropriate listings in any databases in
                  which U S WEST retains and/or maintains end user information.
                  Pac-West assumes liability for the accuracy of information
                  provided to U S WEST. After receiving accurate information
                  from Pac-West, U S WEST assumes liability for the accuracy of
                  transmission of such information to the database provider
                  (e.g., SCC).

         10.2     U S WEST shall provide Pac-West with the capability to assign
                  large quantities (i.e., greater than ten (10)) telephone
                  numbers for multiple line and PBX customers in accordance with
                  U S WEST's tariffs and/or its own internal practices.

         10.3     Pac-West will provide a three (3) year non-binding forecast
                  within ninety (90) days of the Effective Date of this
                  Agreement. The forecast shall be updated and provided to U S
                  WEST on a quarterly basis. The initial forecast will provide:

                  The date service will be offered (by City and/or state)
                  The type and quantity of service(s) which will be offered
                  Pac-West's anticipated order volume Pac-West's key contact
                  personnel

11.      Pricing

         The wholesale discount rate charged to Pac-West for Local Resale is set
         forth in Attachment 1 of this Agreement

12.      Deposit

         12.1     U S WEST may require a suitable deposit to be held by U S WEST
                  as a guarantee for payment of U S WEST's charges for companies
                  which cannot demonstrate sufficient financial integrity based
                  on commercially reasonable standards, which may include a
                  satisfactory credit rating as determined by a recognized
                  credit rating agency reasonably acceptable to U S WEST. Any
                  deposit required of an existing reseller is due and payable
                  within ten (10) days after the requirement is imposed. The
                  amount of the deposit shall be the estimated charges for the
                  resold service which will accrue for a two-month period.
                  Interest on the deposit shall be accumulated by U S WEST at a
                  rate equal to the federal discount rate, as published in the
                  Wall Street Journal from time to time.(12)

         12.2     When the service is terminated or when Pac-West has
                  established satisfactory credit, if required under the terms
                  of the preceding paragraph, the amount of the initial or
                  additional

----------

12 Per Order at page 22, Issue 38.

                                       11
<PAGE>

                  deposit. with any interest due, will, at Pac-West's option, be
                  either credited to Pac-West's account or refunded.
                  Satisfactory credit for Pac-West is defined as (a) twelve (12)
                  months positive payment history in another capacity with U S
                  WEST, such as in the interexchange area: (b) financial
                  standing as outlined in the preceding paragraph above: (c)
                  posting a bond: or (d) twelve (12) consecutive months' service
                  as a reseller without a termination for nonpayment and with no
                  more than one (1) notification of intent to terminate service
                  for nonpayment. Interest on the deposit shall be accumulated
                  by U S WEST at a rate equal to the federal prime rate, as
                  published in the Wall Street Journal from time to time.

                                       12
<PAGE>

                                                                  Attachment 3

                               TABLE OF CONTENTS

1 .      Introduction                                                       1
2.       Unbundled Network Elements                                         1
3.       Standards for Network Elements                                     3
4.       Tandem Switching                                                   3
5.       Shared Transport                                                   6
6.       Common Transport                                                   6
7.       Dedicated Transport                                                9
8.       Loop                                                              16
9.       Distribution                                                      23
10.      Local Switching                                                   25
11.      Network Interface Device                                          31
12.      Operator Systems                                                  33
13.      E911                                                              33
14.      Directory Assistance Data                                         33
15.      Signaling Link Transport                                          33
16.      Signaling Transfer Points (STPs)                                  35
17.      Service Control Points/Databases                                  38
18.      Additional Requirements                                           46
<PAGE>

                           UNBUNDLED ACCESS/ELEMENTS

1.       Introduction

         1.1      U S WEST shall provide unbundled Network Elements in
                  accordance with this Agreement, the Act. FCC rules and
                  regulations, and state rules. regulations and orders. The
                  price for each Network Element is set forth in Attachment 1 of
                  this Agreement. Except as otherwise set forth in this
                  Attachment, Pac-West may order Network Elements as of the
                  Effective Date of this Agreement.

         1.2      General Terms

                  1.2.1    U S WEST agrees to make available the following
                           unbundled Network Elements which are addressed in
                           more detail in the following sections of this
                           Attachment: (a) local loop, (b) local and tandem
                           switches (including all vertical switching features
                           provided by such switches), (c) interoffice
                           transmission facilities, (d) network interface
                           devices, (e) signaling and call-related database
                           facilities, (f) operations support systems functions,
                           and (g) operator and directory assistance
                           facilities.(1)

                  1.2.2    U S WEST shall offer each Network Element
                           individually and in Combinations with any other
                           Network Element or Network Elements in order to
                           permit Pac-West to combine such Network Element or
                           Network Elements obtained from U S WEST or with
                           network components provided by itself or by third
                           parties to provide Telecommunications Services to its
                           subscribers. Pac-West may purchase unbundled Network
                           Elements individually or in Combinations without
                           restrictions as to how those elements may be
                           rebundled.(2)

2.       Unbundled Network Elements

         2.1      U S WEST shall offer Network Elements to Pac-West on an
                  unbundled basis on rates, terms and conditions that are just
                  reasonable, and non-discriminatory in accordance with the
                  terms and conditions of this Agreement.

         2.2      U S WEST shall permit Pac-West to connect Pac-West's
                  facilities or facilities provided to Pac-West by third parties
                  with each of U S WEST's unbundled Network Elements at any
                  technically feasible point designated by Pac-West.

         2.3      Pac-West may use one or more Network Elements to provide any
                  feature, function, capability, or service option such Network
                  Element(s) is capable of providing or any feature, function,
                  capability, or service option described in the technical
                  references identified herein, or as may otherwise be
                  determined by Pac-West(3)

----------

1   Per Order at page 10, Issue 18.
2   Per Order at pages 12-13, Issue 25.
3   Per Order at pages 12-13, Issue 25.

                                       1
<PAGE>

                  2.3.1   Pac-West may, at its option, designate any technically
                          feasible method of access to unbundled Network
                          Elements, including access methods currently or
                          previously in use by U S WEST.

         2.4      Pac-West may purchase unbundled Network Elements without
                  restrictions as to how Pac-West may rebundle those
                  elements.(4)

         2.5      For each Network Element, U S WEST shall provide a demarcation
                  point (e.g., at a Digital Signal Cross Connect, DCS, Light
                  Guide Cross Connect panel or a Main Distribution Frame) and,
                  if necessary, access to the Pac-West side of such demarcation
                  point. which Pac-West agrees is suitable. Where U S WEST
                  provides combined Network Elements at Pac-West's direction,
                  however, no demarcation point shall exist between such
                  contiguous Network Elements.

         2.6      (Intentionally left blank for numbering consistency)

         2.7      This Attachment describes the initial set of Network Elements
                  which Pac-West and U S WEST have identified as of the
                  Effective Date of this Agreement:

                  Loop
                  Network Interface Device
                  Distribution (subject to the BFR)
                  Local Switching
                  Operator Systems
                  Shared Transport
                  Common Transport
                  Dedicated Transport
                  Signaling Link Transport
                  Signaling Transfer Points
                  Service Control Points/Databases
                  Tandem Switching
                  911
                  Directory Assistance

        2.8      Pac-West and U S WEST agree that the Network Elements
                 identified in this Attachment are not all of the possible
                 Network Elements.

        2.9      Pac-West may identify additional or revised Network Elements as
                 necessary to provide Telecommunications Services to its
                 subscribers, to improve network or service efficiencies or to
                 accommodate changing technologies, customer demand, or other
                 requirements.

                 2.9.1    Pac-West will request such Network Elements in
                          accordance with the Bona Fide Request process
                          described in Part A of this Agreement. Additionally,
                          if U S WEST provides any Network Element that is not
                          identified in this Agreement to itself, to its own
                          subscribers, to a U S WEST Affiliate or to any other
                          Person, U S WEST shall make available the same Network
                          Element to Pac-West on terms and conditions no less
                          favorable to Pac-West than those provided to itself or
                          to any other party.

----------

4   Per Order at pages 12-13, Issue 25.

                                       2
<PAGE>

3.       Standards for Network Elements

         3.1      Each Network Element shall be furnished at a service level
                  equal to or better than the requirements set forth in the
                  technical references identified herein for each such Network
                  Element, as well as any performance or other requirements.
                  identified in this Attachment. subject to Sections 1. 3.1 and
                  1.3.2 of Part A of this Agreement

         3.2      If one or more of the requirements set forth in this Agreement
                  are in conflict. the Parties agree to resolve such conflict in
                  accordance with the dispute resolution provisions of Part A of
                  this Agreement

                  3.2.1    U S WEST shall provide to Pac-West, upon request,
                           engineering, design, performance and other network
                           data sufficient for Pac-West to determine that the
                           requirements of this Section 3 are being met. In the
                           event such data indicates that the requirements set
                           forth herein are not being met, U S WEST shall,
                           within ten (10) Business Days, cure any design,
                           performance or other deficiency and provide new data
                           sufficient for Pac-West to determine that such
                           deficiencies have been cured.

                  3.2.2    U S WEST agrees to work cooperatively with Pac-West
                           to provide Network Elements that will meet Pac-West s
                           needs in providing Telecommunications Services to its
                           subscribers.

         3.3      Unless otherwise requested by Pac-West, each Network Element
                  or any Combination thereof and the connections between Network
                  Elements provided by U S WEST to Pac-West shall be made
                  available to Pac-West at any technically feasible point, that
                  is equal to or better than the manner in which U S WEST
                  provides such Network Elements, Combinations and connections
                  to itself, to its own subscribers, to a U S WEST Affiliate or
                  to any other Person.

Description of Unbundled Elements

4.       Tandem Switching

         U S WEST will provide a tandem switching element ("Tandem Switching")
         on an unbundled basis. The tandem switch element includes the
         facilities connecting the trunk distribution frames to the switch, and
         all the functions of the switch itself, including those facilities that
         establish a temporary transmission path between two (2) other switches.
         The definition of the tandem switching element also includes the
         functions centralized in tandems rather than in separate end office
         switches, such as call recording, the routing of calls to Operator
         Services, and signaling conversion functions.

         4.1      Definition:

         Tandem Switching is the function that establishes a communications path
         between two (2) switching offices through a third switching office (the
         tandem switch) including, but not limited to, those of Pac-West, U S
         WEST, independent telephone companies (ICOs), IXCs and wireless
         carriers.

         4.2      Technical Requirements

                  4.2.1    Tandem Switching provided by U S WEST to Pac-West
                           shall have the same capabilities or equivalent
                           capabilities as those described in Bell
                           Communications Research TR-TSY-000540 Issue 2R2,
                           Tandem Supplement, June 1, 1990. The requirements for
                           Tandem Switching include, but are not limited to, the
                           following:

                                       3
<PAGE>

                           4.2.1.1  Tandem Switching shall provide signaling to
                                    establish a tandem connection:

                           4.2.1.2  Tandem Switching shall provide screening
                                    (digit analysis) and routing as designated
                                    by Pac-West:

                           4.2.1.3  Where technically feasible, Tandem Switching
                                    shall provide recording of ail billable
                                    events designated by Pac-West;

                           4.2.1.4  Tandem Switching shall allow passing of
                                    Advanced Intelligent Network triggers
                                    supporting AIN features:

                           4.2.1.5  Tandem Switching shall provide connectivity
                                    to Operator Systems as designated by
                                    Pac-West;

                           4.2.1.6  Tandem Switching shall provide access to
                                    toll free number portability database where
                                    Pac-West sends such traffic to a tandem:

                           4.2.1.7  Tandem Switching shall allow the passing of
                                    all functions associated with traffic for
                                    all trunk interconnection discussed under
                                    the "Network Interconnection" section of
                                    this Agreement (e.g., SS7, MF, DTMF, Dial
                                    Pulse, PRI-ISDN, DID, and CAMA-ANI (if
                                    appropriate for 911));

                           4.2.1.3  Tandem Switching shall provide connectivity
                                    to PSAPs where 911 solutions are deployed
                                    and the tandem is used for 911; and

                           4.2.1.9  Tandem Switching shall provide connectivity
                                    to transit traffic to and from other
                                    carriers.

                  4.2.2    Tandem Switching shall accept connections (including
                           the necessary signaling and trunking
                           interconnections) between end offices, other tandems,
                           IXCs, ICOs, CAPs and CLEC switches.

                  4.2.3    Tandem Switching shall provide local tandeming
                           functionality between two (2) end offices, including
                           two (2) offices belonging to different CLECs (e.g.,
                           between an Pac-West end office and the end office of
                           another CLEC).

                  4.2.4    Tandem Switching shall preserve CLASS/LASS features
                           and Caller ID as traffic is processed. Additional
                           signaling information and requirements are provided
                           in Section 15 of this Attachment 3.

                  4.2.5    Tandem Switching shall record billable events and
                           send them to the area billing centers designated by
                           Pac-West Billing requirements are specified in
                           Attachment 5 to this Agreement.

                  4.2.6    U S WEST shall perform routine testing and fault
                           isolation on the underlying switch providing Tandem
                           Switching and all its Interconnections. When
                           requested by Pac-West the results and reports of the
                           testing shall be made immediately available to
                           Pac-West.

                  4.2.7    When requested by Pac-West, U S WEST shall provide to
                           Pac-West for review performance data regarding
                           traffic characteristics or other measurable elements
                           with respect to Pac-West traffic.

                                       4
<PAGE>

         4.2.8    Tandem Switching shall control congestion using capabilities
                  such as Automatic Congestion Control and Network Routing
                  Overflow. Congestion control provided or imposed on Pac-West
                  traffic shall be at panty with controls being provided or
                  imposed on U S WEST traffic (e.g., U S WEST shall not block
                  Pac-West traffic and leave its own traffic unaffected or less
                  affected).

         4.2.9    Tandem Switching shall route calls to U S WEST or Pac-West
                  endpoints or platforms (e.g., Operator Services and PSAPs) on
                  a per call basis as designated by Pac-West. Detailed primary
                  and overflow routing plans for ail interfaces available within
                  the U S WEST switching network shall be mutually agreed to by
                  Pac-West and U S WEST. Such Plans shall meet Pac-West
                  requirements for routing calls through the local network.

         4.2.10   Tandem Switching shall process originating toll free traffic
                  received from an Pac-West local switch.

         4.2.11   In support of AIN triggers and features, Tandem Switching
                  shall provide SSP capabilities when these capabilities are not
                  available from the Local Switching Network Element.

         4.2.12   The Local Switching and Tandem Switching functions may be
                  combined in an office. If this is done, both Local Switching
                  and Tandem Switching shall provide all of the functionality
                  required of each of those Network Elements in this Agreement.

4.3      Interface Requirements

         4.3.1    Tandem Switching shall provide interconnection to the E911
                  PSAP where the underlying Tandem is acting as the E911 Tandem.

         4.3.2    Tandem Switching shall interconnect, with direct trunks, to
                  all carriers with which U S WEST interconnects.

         4.3.3    U S WEST shall provide all signaling necessary to provide
                  Tandem Switching with no loss of feature functionality.

         4.3.4    For applicable call types, Tandem Switching shall interconnect
                  with Pac-West's switch, using two-way trunks, for traffic that
                  is transiting via the U S WEST network to interLATA or
                  intraLATA carriers. At Pac-West's request, Tandem Switching
                  shall record and keep records of traffic for billing.

         4.3.5    At Pac-West's request, Tandem Switching shall provide overflow
                  routing of traffic from a given trunk group or groups onto
                  another trunk group or groups according to the methodology
                  employed by U S WEST as designated by Pac-West.

4.4      Tandem Switching shall meet or exceed each of the requirements for
         Tandem Switching set forth in the following technical references:

         4.4.1    Bell Communications Research TR-TSY-000540 Issue 2R2, Tandem
                  Supplement, June 1, 1990;

         4.4.2    GR-905-CORE covering CCSNIS;

                                       5
<PAGE>

                  4.4.3    GR-1429-CORE for call management features: and
                  4.4.4    GR-2863-CORE and GR-2902-CORE for CCS AIN
                           interconnection.

5.       Shared Transport

         U S WEST will provide unbundled access to shared transmission
         facilities between end offices and the tandem switch. Further, U S WEST
         will provide unbundled access to dedicated transmission facilities
         between its central offices or between such offices and those of
         competing carriers. This includes, at a minimum, interoffice facilities
         between end offices, IXC POPs, end offices or tandems of U S WEST, and
         the end offices of U S WEST and requesting carriers. In addition, U S
         WEST will provide all technically feasible transmission capabilities,
         such as DS-1, DS-3, and Optical Carrier levels (e.g. OC-3/12/48/96)
         that Pac-West could use to provide -Telecommunications Services.'

6.       Common Transport

         6.1      Definition

         Common Transport is an interoffice transmission path between U S WEST
         Network Elements shared by carriers. Where U S WEST Network Elements
         are connected by intraoffice wiring, such wiring is provided as a part
         of the Network Elements and is not Common Transport. U S WEST shall
         offer Common Transport as of the Effective Date of this Agreement at
         DS-0, DS-1, DS-3, STS-1 or higher transmission bit rate circuits.
         Common Transport consists of U S WEST inter-office transport facilities
         and is distinct and separate from Local Switching.

         6.2      Technical Requirements

                  6.2.1    U S WEST shall be responsible for the engineering,
                           provisioning, and maintenance of the underlying
                           equipment and facilities used to provide Common
                           Transport.

                  6.2.2    In accordance with Sections 1.3.1 and 1.3.2 of Part A
                           of this Agreement, at a minimum, Common Transport
                           shall meet all of the requirements set forth in the
                           following technical references, as applicable for the
                           transport technology being used:

                           6.2.2.1       ANSI T1.101-1994, American National
                                         Standard for
                                         Telecommunications-Synchronization
                                         Interface Standard Performance and
                                         Availability;

                           6.2.2.2       ANSI T1. 102-1993, American National
                                         Standard for Telecommunications -
                                         Digital Hierarchy - Electrical
                                         Interfaces;

                           6.2.2.3       ANSI T1. 102.01-199x, American National
                                         Standard for Telecommunications -
                                         Digital Hierarchy - VT1.5;
----------

(5) Per Recommendations at page 25, Issue 142.

                                       6
<PAGE>

                           6.2.2.4       ANSI T1.105-1995, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET -
                                         Basic Description including Multiplex
                                         Structure, Rates and Formats:

                           6.2.2.5       ANSI T1. 105.01-1995, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET)
                                         Automatic Protection Switching;

                           6.2.2.6       ANSI T1. 105,02-1995, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET) -
                                         Payload Mappings;

                           6.2.2.7       ANSI T1. 105.03-1994, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET) -
                                         Jitter at Network Interfaces;

                           6.2.2.8       ANSI T1. 105.03a-1995, American
                                         National Standard for
                                         Telecommunications - Synchronous
                                         Optical Network (SONET)-Jitter at
                                         Network Interfaces - DS-1 Supplement;

                           6.2.2.9       ANSI T1. 105.05-1994, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET) -
                                         Tandem Connection;

                           6.2.2.10      ANSI T1. 105.06-199x, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET) -
                                         Physical Layer Specifications;

                           6.2.2.11      ANSI T1. 105.07-199x, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET) -
                                         Sub STS-1 Interface Rates and Formats;

                           6.2.2.12      ANSI T1. 105.09-199x, American National
                                         Standard for Telecommunications -
                                         Synchronous Optical Network (SONET) -
                                         Network Element Timing and
                                         Synchronization;

                           6.2.2.13      ANSI T1. 106-1988, American National
                                         Standard for Telecommunications -
                                         Digital Hierarchy - Optical Interface
                                         Specifications (Single Mode);

                           6.2.2.14      ANSI T1. 107-1988, American National
                                         Standard for Telecommunications -
                                         Digital Hierarchy - Formats
                                         Specifications;

                           6.2.2.15      ANSI T1. 107a-1 990, American National
                                         Standard for Telecommunications -
                                         Digital Hierarchy - Supplement to
                                         Formats Specifications (DS3 Format
                                         Applications);

                           6.2.2.16      ANSI T1. 1 07b-1 99 1, American
                                         National Standard for
                                         Telecommunications - Digital Hierarchy
                                         - Supplement to Formats Specifications;

                                       7
<PAGE>

                           6.2.2.17     ANSI T1. 117-1991, American National
                                        Standard for Telecommunications -
                                        Digital Hierarchy - Optical Interface
                                        Specifications (SONET) (Single Mode -
                                        Short Reach);

                           6.2.2.18     ANSI T1.403-1989, Carrier to Subscriber
                                        Installation, DS-1 Metallic Interface
                                        Specification;

                           6.2.2.19     ANSI T1.404-1994, Network-to-Subscriber
                                        Installation - DS-3 Metallic Interface
                                        Specification;

                           6.2.2.20     ITU Recommendation G.707, Network node
                                        interface for the synchronous digital
                                        hierarchy (SDH);

                           6.2.2.21     ITU Recommendation G.704, Synchronous
                                        frame structures used at 1544, 6312,
                                        2048, 8488 and 44736 kbit/s hierarchical
                                        levels;

                           6.2.2.22     Bellcore FR-440 and TR-NWT-000499,
                                        Transport Systems Generic Requirements
                                        (TSGR): Common Requirements;

                           6.2.2.23     Bellcore GR-820-CORE, Generic
                                        Transmission Surveillance: DS-1 & DS-3
                                        Performance;

                           6.2.2.24     Bellcore GR-253-CORE, Synchronous
                                        Optical Network Systems (SONET); Common
                                        Generic Criteria;

                           6.2.2.25     Bellcore TR-NWT 000507, Transmission,
                                        Section 7, Issue 5 (Bellcore, December
                                        1993) (A module of LSSGR,
                                        FR-NWT-000064.);

                           6.2.2.26     Bellcore TR-NWT-000776, Network
                                        Interface Description for ISDN
                                        Subscriber Access;

                           6.2.2.27     Bellcore TR-INS-000342, High-Capacity
                                        Digital Special Access
                                        Service-Transmission Parameter Limits
                                        and Interface Combinations, Issue 1,
                                        February 1991;

                           6.2.2.28     Bellcore ST-TEC-000052,
                                        Telecommunications Transmission
                                        Engineering Textbook, Volume 2:
                                        Facilities, Third Edition, Issue 1, May
                                        1989: and

                           6.2.2.29     Bellcore ST-TEC-000051,
                                        Telecommunications Transmission
                                        Engineering Textbook Volume 1:
                                        Principles, Third Edition, Issue 1,
                                        August 1989.

7.        Dedicated Transport

          7.1     Definition:

                  7.1.1    Dedicated Transport is an interoffice transmission
                           path between Pac-West designated locations to which
                           Pac-West is granted exclusive use. Such locations may
                           include U S WEST central offices or other locations,
                           Pac-West network components, other cater network
                           components, or subscriber premises.

                  7.1.2    U S WEST shall offer Dedicated Transport in each of
                           the following manners:

                                       8
<PAGE>

                  7.1.2.1  as capacity on a shared facility;

                  7.1.2.2. as a circuit (e.g., DS-1 DS-3, STS-1) dedicated to
                           Pac-West: and

                  7.1.2.3  as a system (i.e., the equipment and facilities used
                           to provide Dedicated Transport such as SONET ring)
                           dedicated to Pac-West.

         7.1.3    When Dedicated Transport is provided as a circuit or as
                  capacity on a s hared facility, it shall include, as
                  appropriate:

                  7.1.3.1  multiplexing functionality;

                  7.1.3.2  grooming functionality; and,

                  7.1.3.3  redundant equipment and facilities necessary to
                           support protection and restoration.

         7.1.4    When Dedicated Transport is provided as a system, it shall
                  include:

                  7.1.4.1  transmission equipment such as multiplexers, line
                           terminating equipment, amplifiers, and regenerators;

                  7.1.4.2  inter-office transmission facilities such as optical
                           fiber, dark fiber(6), copper twisted pair, and
                           coaxial cable;

                  7.1.4.3  redundant equipment and facilities necessary to
                           support protection and restoration; and

                  7.1.4.4  access to the Digital Cross-Connect System ("DCS")
                           functionality as an option in the same manner
                           provided to IXCs that purchase transport services.
                           DCS is described below in Section 7.5 of this
                           Attachment 3.

7.2      Technical Requirements

         This Section sets forth technical requirements for all Dedicated
         Transport.

         7.2.1    When U S WEST provides Dedicated Transport as a circuit or a
                  system, the entire designated transmission circuit or system
                  (e.g., DS-1, DS-3, STS-1) shall be dedicated to Pac-West
                  designated traffic.

         7.2.2    U S WEST shall offer Dedicated Transport using currently
                  available technologies including, but not limited to, DS-1 and
                  DS-3 transport systems, SONET Bidirectional Line Switched
                  Rings, SONET Unidirectional Path Switched Rings, and SONET
                  point-to-point transport systems (including linear add-drop
                  systems), at all available transmission bit rates.

         7.2.3     When requested by Pac-West, Dedicated Transport shall provide
                   physical diversity. Physical diversity means that two (2)
                   circuits are provisioned in such a way that no single failure
                   of facilities or equipment will cause a failure on both
                   circuits.

----------
6 Per Order at pages 11-12, Issue 22.

                                       9
<PAGE>

                  7.2.4    When physical diversity is requested by Pac-West, U S
                           WEST shall provide the maximum feasible physical
                           separation between transmission paths for all
                           facilities and equipment, unless otherwise agreed to
                           by Pac-West.

                  7.2.5    Upon Pac-West's written request and where available
                           in the U S WEST network. U S WEST shall provide real
                           time and continuous remote access to performance
                           monitoring and alarm data affecting, or potentially
                           affecting, Pac-West's traffic.

                  7.2.6    U S WEST shall offer the following interface
                           transmission rates for Dedicated Transport:

                           7.2.6.1  DS-1 (Extended SuperFrame - ESF/B8ZS, D4,
                                    and unframed applications shall be provided,
                                    except for those local/EAS tandems as
                                    designated by U S WEST);

                           7.2.6.2  DS-3 (C-bit Parity, M13, and unframed
                                    applications shall be provided);

                           7.2.6.3  SONET standard interface rates in accordance
                                    with ANSI T1.105 and ANSI T1.105.07 and
                                    physical interfaces per ANSI T1. 106.06,
                                    including referenced interfaces. In
                                    particular, VT1.5 based STS-1s will be the
                                    interface at an Pac-West service node; and

                           7.2.6.4  where available, SONET standard interface
                                    rates in accordance with International
                                    Telecommunications Union ("ITU")
                                    Recommendation G.707 and Plesiochronous
                                    Digital Hierarchy ("PDH") rates per ITU
                                    Recommendation G.704.

                  7.2.7    U S WEST shall provide intraoffice wiring up to a
                           suitable Point of Termination ("POT") between
                           Dedicated Transport and Pac-West designated
                           equipment. U S WEST shall provide the following
                           equipment for the physical POT:

                           7.2.7.1 DSX1 or DCS for DS-1 s or VT1. 5s;

                           7.2.7.2 DSX3 or DCS for DS-3s or STS-1 s; and

                           7.2.7.3 Light guide cross-connect for optical signals
                                   (e.g., OC-3 and OC-12).

                  7.2.8    For Dedicated Transport provided as a system, U S
                           WEST shall design the system, including, but not
                           limited to, facility routing and termination points,
                           according to Pac-West specifications.

                  7.2.9    Upon Pac-West's request and where available, U S WEST
                           shall provide Pac-West with electronic provisioning
                           control, of Pac-West specified Dedicated Transport
                           via Command-A-Link or equivalent interface in the
                           same manner as is provided to IXCs.

                  7.2.10   US WEST shall offer Dedicated Transport together with
                           and separately from DCS.

         7.3      Technical Requirements for Dedicated Transport Using SONET
                  Technology. This Section sets forth additional technical
                  requirements for Dedicated Transport using SONET technology
                  including rings, point-to-point systems, and linear add-drop
                  systems.

                                       10
<PAGE>

                  7.3.1    All SONET Dedicated Transport provided as a system
                           shall:

                           7.3.1.1  be synchronized with a primary Stratum 1
                                    level timing source.

                           7.3.1.2  provide SONET standard interfaces as
                                    available in the U S WEST network and
                                    consistent with generally accepted industry
                                    standards which properly interwork with
                                    SONET standard equipment from other vendors.
                                    including, but not limited to, SONET
                                    standard section, line and path performance
                                    monitoring, maintenance signals, alarms, and
                                    data channels:

                           7.3.1.3  provide Data Communications Channel ("DCC")
                                    or equivalent connectivity through the SONET
                                    transport system. Dedicated Transport
                                    provided over a SONET transport system shall
                                    be capable of routing DCC messages between
                                    Pac-West and SONET network components
                                    connected to the Dedicated Transport. For
                                    example, if Pac-West leases a SONET ring
                                    from U S WEST, that ring shall support DCC
                                    message routing between Pac-West and SONET
                                    network components connected to the ring;
                                    and

                           7.3.1.4  support the following performance
                                    requirements for each circuit (STS-1, DS-1,
                                    DS-3, etc.):

                                    7.3.1.4.1 no more than ten (10) Errored
                                    Seconds Per Day (Errored Seconds are defined
                                    in the technical reference at Section
                                    7.4.5); and

                                    7.3.1.4.2 no more than one (1) Severely
                                    Errored Second Per Day (Severely Errored
                                    Seconds are defined in the technical
                                    reference at Section 7.4.5).

                  7.3.2    SONET rings shall:

                           7.3.2.1  be provisioned on physically diverse fiber
                                    optic cables (including separate building
                                    entrances where available). "Diversely
                                    routed" shall be interpreted as the maximum
                                    feasible physical separation between
                                    transmission paths, unless otherwise agreed
                                    to by Pac-West;

                           7.3.2.2  support dual ring interworking per SONET
                                    Standards where available in the U S WEST
                                    network;

                           7.3.2.3  provide the necessary redundancy in optics,
                                    electronics, and transmission paths such
                                    that no single failure will cause a service
                                    interruption;

                           7.3.2.4  where available, provide the ability to
                                    disable ring protection switching at
                                    Pac-West's direction (selective protection
                                    lock-out). This requirement applies to line
                                    switched rings only;

                           7.3.2.5  where available, provide the ability to use
                                    the protection channels to carry extra
                                    traffic. This requirement applies to line
                                    switched rings only;

                           7.3.2.6  provide 9.0 millisecond restoration as
                                    defined in SONET standards;

                           7.3.2.7  where available, have settable ring
                                    protection switching thresholds that shall
                                    be set in accordance with Pac-West's
                                    specifications;

                                       11
<PAGE>

                  7.3.2.8  where available, provide revertive protection
                           switching with a settable wait to restore delay with
                           a default setting of five (5) minutes. This
                           requirement applies to line switched rings only:

                  7.3.2.9  provide non-revertive protection switching. This
                           requirement applies to path switched rings only; and

                  7.3.2.10 adhere to the following availability requirements,
                           where availability is defined in the technical
                           reference set forth in Section 7.4. 5 :

                           7.3.2.10.1 no more than 0.25 minutes of
                           unavailability per month; and

                           7.3.2.10.2 no more than 0.5 minutes of unavailability
                           per year.

7.4      In accordance with Sections 1. 3.1 and 1. 3.2 of Part A of this
         Agreement, at a minimum, Dedicated Transport shall meet each of the
         requirements set forth in Section 7.2.3 of this Attachment 3 and in the
         following technical references:

         7.4.1    ANSI T1. 105.04-1995, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET) -
                  Data Communication Channel Protocols and Architectures;

         7.4.2    ANSI T1. 119-1994, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET) -
                  Operations, Administration, Maintenance, and Provisioning
                  (OAM&P) Communications;

         7.4.3    ANSI T1. 119.01-1995, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET)
                  Operations, Administration, Maintenance, and Provisioning
                  (OAM&P) Communications Protection Switching Fragment;

         7.4.4    ANSI T1. 1 19.02-199x, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET)
                  Operations, Administration, Maintenance, and Provisioning
                  (OAM&P) Communications Performance Monitoring Fragment, and

         7.4.5    ANSI TI.231-1993 - American National Standard for
                  Telecommunications - Digital Hierarchy - Layer 1 In-Service
                  Digital Transmission Performance Monitoring.

7.5      Digital Cross-Connect System

         7.5.1    Definition

                       7.5.1.1  Digital Cross-Connect System ("DCS") is a
                                function which provides automated cross
                                connection of Digital Signal level 0 (DS-0) or
                                higher transmission bit rate digital channels
                                within physical interface facilities. Types of
                                DCSs include but are not limited to DCS 1/0s,
                                DCS 3/1s, and DCS 3/3s, where the nomenclature 1
                                /0 denotes interfaces typically at the DS-1 rate
                                or greater with crossconnection typically at the
                                DS-0 rate. This same nomenclature, at the
                                appropriate rate substitution, extends to the
                                other types of DCSs specifically cited as 3/1
                                and 3/3. Types of DCSs that cross-connect
                                Synchronous Transport Signal level 1 (STS-1) or
                                other Synchronous Optical Network (SONET)
                                signals (e.g., STS-3) are also DCSs, although
                                not denoted by this

                                       12
<PAGE>

                                same type of nomenclature. DCS may provide 'he
                                functionality of more than one of the
                                aforementioned DCS types (e.g., DCS 3/3/1 which
                                combines functionality of DCS 3/3 and DCS 3/1).
                                For such DCSs, 'he requirements will be, at
                                least, the aggregation of requirements on the
                                "component" DCSs.

                       7.5.1.2  In locations where automated cross connection
                                capability does not exist, a Digital Signal
                                Cross-Connect ("DSX") or light guide
                                cross-connect patch panels and D4 channel banks
                                or other DS-0 and above multiplexing equipment
                                used to provide the function of a manual cross
                                connection will be made available.

                       7.5.1.3  Interconnection between a DSX or light guide
                                cross-connect. to a switch, another
                                cross-connect, or other service platform device,
                                is included as part of DCS.

          7.6      DCS Technical Requirements

                  7.6.1    DCS shall provide completed end-to-end cross
                           connection of the channels designated by Pac-West.

                  7.6.2    DCS shall perform facility grooming, multipoint
                           bridging, one-way broadcast, twoway broadcast, and
                           facility test functions, where technically feasible.

                  7.6.3    DCS shall provide multiplexing, format conversion,
                           signaling conversion, or other functions, where
                           technically feasible.

                  7.6.4    The end-to-end cross connection shall be input to the
                           underlying device used to provide DCS from an
                           operator at a terminal or via an intermediate system.
                           The cross connection assignment shall remain in
                           effect whether or not the circuit is in use.

                  7.6.5    U S WEST shall administer and maintain DCS.

                  7.6.6    Where available, U S WEST shall provide various types
                           of DCSs, including:

                           7.6.6.1       DS-0 cross-connects (typically termed
                                         DCS 1/0);

                           7.6.6.2       DS1/VT1.5 (Virtual Tributaries at the
                                         1.5Mbps rate) cross-connects (typically
                                         termed DCS 3/1);

                           7.6.6.3       DS-3 cross-connects (typically termed
                                         DCS 3/3);

                           7.6.6.4       STS-1 cross-connects; and

                           7.6.6.5       other technically feasible
                                         cross-connects designated by Pac-West.

                  7.6.7    U S WEST shall provide immediate and continuous
                           configuration and reconfiguration of the channels
                           between the physical interfaces (i.e., U S WEST shall
                           establish the processes to implement cross connects
                           on demand), where available, based on engineering
                           forecasts.

                  7.6.8    U S WEST shall provide scheduled configuration and
                           reconfiguration of the channels between the physical
                           interfaces (i.e., U S WEST shall establish the
                           processes to implement cross connects on the schedule
                           designated by Pac-West)

                                       13
<PAGE>

                  or, at Pac-West s option, permit Pac-West to control such
                  configurations and reconfigurations, where available, based on
                  engineering forecasts.

         7.6.9    DCS shall continuously monitor protected circuit packs and
                  redundant common equipment.

         7.6.10   DCS shall automatically switch to a protection circuit pack on
                  detection of a failure or degradation of normal operation.

         7.6.11   DCS equipment shall be equipped with a redundant power supply
                  or a battery backup.

         7.6.12   U S WEST shall have available and utilize spare maintenance
                  facilities and equipment necessary for provisioning repairs.

         7.6.13   At Pac-West's option, U S WEST shall provide, where available,
                  Pac-West with real time performance monitoring and alarm data
                  on the signals and the components of the underlying equipment
                  used to provide DCS that actually impact or might impact
                  Pac-West's services. For example, this may include hardware
                  alarm data and facility alarm data on a DS-3 in which an
                  Pac-West DS-1 is traversing.

         7.6.14   At Pac-West's option, U S WEST shall provide Pac-West with
                  real time ability to initiate tests on integrated equipment
                  used to test the signals and the underlying equipment used to
                  provide DCS, as well as other integrated functionality for
                  routine testing and fault isolation where available.

         7.6.15   Where available, DCS shall provide SONET to asynchronous
                  gateway functionality (e.g., STS-1 to DS-1 or STS-1 to DS-3).

         7.6.16   Where available, DCS shall perform optical to electrical
                  conversion where the underlying equipment used to provide DCS
                  contains optical interfaces or terminations (e.g., Optical
                  Carrier level 3, i.e., OC-3, interfaces on a DCS 3/1).

         7.6-17   Where available, DCS shall have SONET ring terminal
                  functionality where the underlying equipment used to provide
                  DCS acts as a terminal on a SONET ring.

         7.6.18   DCS shall provide multipoint bridging of multiple channels to
                  other DCSs. Pac-West may designate multipoint bridging to be
                  one-way broadcast from a single master to multiple
                  tributaries, or two-way broadcast between a single master and
                  multiple tributaries.

         7.6.19   DCS shall multiplex lower speed channels onto a higher speed
                  interface and demultiplex higher speed channels onto lower
                  speed interfaces as designated by Pac-West.

7.7      DCS Interface Requirements

         7.7.1    U S WEST shall provide physical interfaces on DS-0, DS-1, and
                  VT1.5 channel cross-connect devices at the DS-1 rate or
                  higher. In all such cases, these interfaces shall be in
                  compliance with applicable Bellcore, ANSI, ITU, and Pac-West
                  standards.

                                       14
<PAGE>

         7.7.2    U S WEST shall provide physical interfaces on DS-3 channel
                  cross-connect devices at the DS-3 rate or higher. In ail such
                  cases, these interfaces shall be in compliance with applicable
                  Bellcore, ANSI, ITU, and Pac-West standards.

         7.7.3    U S WEST shall provide physical interfaces on STS-1
                  cross-connect devices at the OC-3 rate or higher. In ail such
                  cases, these interfaces shall be in compliance with applicable
                  Bellcore, ANSI, ITU, and Pac-West standards.

         7.7.4    Interfaces on all other cross-connect devices shall be in
                  compliance with applicable Bellcore, ANSI, ITU, and Pac-West
                  standards.

7.8      In accordance with Sections 1.3.1 and 1.3.2 of Part A of this
         Agreement, DCS shall, at a minimum, meet all the requirements set forth
         in the following technical references:

         7.8.1    ANSI T1. 102-1993, American National Standard for
                  Telecommunications - Digital Hierarchy - Electrical
                  Interfaces;

         7.8.2    ANSI T1. 102.01-199x, American National Standard for
                  Telecommunications - Digital Hierarchy - VT1.5;

         7.8.3    ANSI T1. 105-1995, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET) -
                  Basic Description including Multiplex Structure, Rates and
                  Formats;

         7.8.4    ANSI T1. 105.03-1994, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET) -
                  Jitter at Network Interfaces-,

         7.8.5    ANSI T1. 1 05.03a-1 995, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET):
                  Jitter at Network Interfaces - DS-1 Supplement

         7.8.6    ANSI T1. 1 05.06-199x, American National Standard for
                  Telecommunications - Synchronous Optical Network (SONET) -
                  Physical Layer Specifications;

         7.8.7    ANSI T1. 106-1988, American National Standard for
                  Telecommunications - Digital Hierarchy - Optical Interface
                  Specifications (Single Made);

         7.8.8    ANSI T1. 107-1988, American National Standard for
                  Telecommunications - Digital Hierarchy - Formats
                  Specifications;

         7.8.9    ANSI T1. 1 07a-1 990, American National Standard for
                  Telecommunications - Digital Hierarchy - Supplement to Formats
                  Specifications (DS-3 Format Applications);

         7.8.10   ANSI T1.1 07b-1 991, American National Standard for
                  Telecommunications - Digital Hierarchy - Supplement to Formats
                  Specifications;

         7.8.11   ANSI T1. 117-1991, American National Standard for
                  Telecommunications - Digital Hierarchy - Optical Interface
                  Specifications (SONET) (Single Mode - Short Reach);

         7.8.12   ANSI T1.403-1989, Carrier to Subscriber Installation, DS-1
                  Metallic Interface Specification;

                                       15
<PAGE>

         7.8.13   ANSI T1.404-1994, Network-to-Subscriber Installation - DS-3
                  Metallic Interface Specification;

         7.8.14   ITU Recommendation G.707, Net-work node interface for the
                  synchronous digital hierarchy (SDH);

         7.8.15   ITU Recommendation G.704, Synchronous frame structures used at
                  154.4, 6312, 2048, 8488 and 44736 kbit/s hierarchical levels;

         7.8.16   FR-440 and TR-NWT-000499, Transport Systems Generic
                  Requirements (TSGR): Common Requirements;

         7.8.17   GR-820-CORE. Generic Transmission Surveillance: DS1 & DS3
                  Performance;

         7.8.18   GR-253-CORE, Synchronous Optical Network Systems (SONET):
                  Common Generic Criteria; and

         7.3.19   TR-NWT-000776, Network Interface Description for ISDN
         Subscriber Access.

8.       Loop

         8.1      Definition

                  8.1.1    A Loop is a transmission facility between a
                           distribution frame, or its equivalent, in a U S WEST
                           central office or wire center, and the Network
                           Interface Device (as defined herein) or network
                           interface at a subscriber's premises, to which
                           Pac-West is granted exclusive use. This includes, but
                           is not limited to, two-wire and four-wire analog
                           voice-grade loops, and two-wire and four-wire loops
                           that are conditioned to transmit the digital signals
                           needed to provide ISDN, ADSL, HDSL, and DS-1 level
                           signals. A Loop may be composed of the following
                           components:

                           Loop Concentrator/Multiplexer
                           Loop Feeder
                           Network Interface Device (NID)
                           Distribution

                           8.1.1.1  Pac-West may purchase Loop and NID on an
                                    unbundled basis. Pac-West shall use the BFR
                                    process set forth in Part A of this
                                    Agreement to request unbundling of Loop
                                    Concentrator/Multiplexer, Loop Feeder and
                                    Distribution.

                  8.1.2    If U S WEST uses Integrated Digital Loop Carrier
                           ("DLC") systems to provide the local Loop, U S WEST
                           will make alternate arrangements, equal in quality,
                           to permit Pac-West to order a contiguous unbundled
                           local Loop. These arrangements may, at U S WEST's
                           option, include the following: providing Pac-West
                           with copper facilities or universal DLC that meet
                           established technical parameters, deploying Virtual
                           Remote Terminals, allowing Pac-West to purchase the
                           entire Integrated DLC, or converting integrated DLCs
                           to non-integrated systems.

                  8.1.3    U S WEST shall provide the BRI U interface using
                           2-wire copper loops in accordance with TR-NWT-000393,
                           January 1991, Generic Requirements for ISDN Basic
                           Access Digital Subscriber Lines.

         8.2      Technical Requirements

                                       16
<PAGE>

                   Subdivided to each component as detailed below.

          8.3      Interface Requirements

                   Subdivided to each component as detailed below.

          8.4      Loop Components

                   8.4.1    Loop Concentrator/Multiplexer

                       8.4.1.1 Definition:

                            8.4.1.1.1    The Loop Concentrator/Multiplexer is
                                         the Network Element that:

                                         (a) aggregates lower bit rate or
                                         bandwidth signals to higher bit rate or
                                         bandwidth signals (multiplexing); (b)
                                         disaggregates higher bit rate or
                                         bandwidth signals to lower bit rate or
                                         bandwidth signals (demultiplexing); (c)
                                         aggregates a specified number of
                                         signals or channels to fewer channels
                                         (concentrating); (d) performs signal
                                         conversion, including encoding of
                                         signals (e.g., analog to digital and
                                         digital to analog signal conversion);
                                         and (e) in some instances performs
                                         electrical to optical (E/0) conversion.

                            8.4.1.1.2    The Loop Concentrator/Multiplexer
                                         function may be provided through a DLC
                                         system, channel bank, multiplexer or
                                         other equipment at which traffic is
                                         encoded and decoded, multiplexed and
                                         demultiplexed, or concentrated.

                       8.4.1.2 Technical Requirements

                            8.4.1.2.1    The Loop Concentrator/Multiplexer shall
                                         be capable of performing its functions
                                         on the signals for the following
                                         services, as needed by Pac-West to
                                         provide end-to-end service capability
                                         to its subscriber, including, but not
                                         limited to:

                                         8.4.1.2.1.1 two-wire & four-wire analog
                                         voice grade loops;

                                         8.4.1.2.1.2 two-wire & four-wire loops
                                         conditioned to transmit the digital
                                         signals needed to provide digital
                                         services;

                                         8.4.1.2.1.3 4-wire digital data
                                         (2.4Kbps through 64Kbps and "n" times
                                         64Kbps (where n  24);

                                         8.4.1.2.1.4 DS3 rate private lines
                                         where available; and

                                         8.4.1.2.1.5 Optical SONET rate private
                                         lines where available.

                            8.4.1.2.2    The Loop Concentrator/Muitiplexer shall
                                         perform the following functions as
                                         appropriate:

                                         8.4.1.2.2.1 analog to digital signal
                                         conversion of both incoming and
                                         outgoing (upstream and downstream)
                                         analog signals;

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<PAGE>

                                         8.4.1.2.2.2 multiplexing of the
                                         individual digital signals up to higher
                                         transmission bit rate signals (e.g.,
                                         DS-0. DS-1, DS-3, or optical SONET
                                         rates) for transport to the U S WEST
                                         central office through the Loop Feeder,
                                         and

                                         8.4.1.2.2.3 concentration of end-user
                                         subscriber signals onto fewer channels
                                         of a Loop Feeder (when available the
                                         concentration ratio shall be as
                                         specified from time to time by
                                         Pac-West).

                                         8.4.1.2.2.4 Concentration ratios shall
                                         not impair analog or digital
                                         performance.

                            8.4.1.2.3    Pac-West may request U S WEST to
                                         provide power for the Loop
                                         Concentrator/Multiplexer through a
                                         non-interruptible source, if the
                                         function is performed in a central
                                         office, or from a commercial AC power
                                         source with battery backup, if the
                                         equipment is located outside a central
                                         office. Such power shall also adhere to
                                         the requirements stated herein.

                            8.4.1.2.4    In accordance with Sections 1. 3.1 and
                                         1. 3.2 of Part A of this Agreement, the
                                         Loop Concentrator/Multiplexer shall be
                                         provided to Pac-West in accordance with
                                         the following Technical References:

                                         8.4.1.2.4.1 Bellcore TR-NWT-000057,
                                         Functional Criteria for Digital Loop
                                         Carrier Systems, Issue 2, January 1993;

                                         8.4.1.2.4.2 Bellcore TR-NWT-000393,
                                         Generic Requirements for ISDN Basic
                                         Access Digital Subscriber Lines;

                                         8.4.1.2.4.3 T1. 106 - 1988, American
                                         National Standard for
                                         Telecommunications - Digital Hierarchy
                                         - Optical Interface Specifications
                                         (Single Mode);

                                         8.4.1.2.4.4 ANSI T1.105-1995, American
                                         National Standard for
                                         Telecommunications - Synchronous
                                         Optical Network (SONET) - Basic
                                         Description including Multiplex
                                         Structure, Rates and Formats;

                                         8.4.1.2.4.5 ANSI T1.102-1993, American
                                         National Standard for
                                         Telecommunications - Digital Hierarchy
                                         - Electrical Interfaces;

                                         8.4.1.2.4.6 ANSI T1.403-1989, American
                                         National Standard for
                                         Telecommunications - Carrier to
                                         Subscriber Installation, DS-1 Metallic
                                         Interface Specification;

                                         8.4.1.2.4.7 Bellcore GR-253-CORE,
                                         Synchronous Optical Network Systems
                                         (SONET), Common Generic Criteria;

                                         8.4.1.2.4.8 Bellcore TR-TSY-000008,
                                         Digital Interface Between the SLC 96
                                         Digital Loop Carrier System and a Local
                                         Digital Switch, Issue 2, August 1987;

                                       18
<PAGE>

                                         8.4.1.2.4.9 Bellcore TR-NWT-000303,
                                         Integrated Digital Loop Carrier System
                                         Generic Requirements, Objectives and
                                         Interface. Issue 2, December 1992; Rev.
                                         1, December 1993: Supplement 1,
                                         December 1993;

                                         8.4.1.2.4.10 Bellcore TR-TSY-000673,
                                         Operations Systems Interface for an
                                         IDLC System, (LSSGR) FSD 20-02-2100,
                                         Issue 1, September 1989; and

                                         8.4.1.2.4.11 Bellcore Integrated
                                         Digital Loop Carder System Generic
                                         Requirements, Objectives and Interface,
                                         GR-303-CORE. Issue 1, September 1995.

              8.4.1.3 Requirements for an Intelligent Loop Concentrator/
                      Multiplexer

                            8.4.1.3.1  In addition to the basic functions
                                       described above for the Loop
                                       Concentrator/Multiplexer, the Intelligent
                                       Loop Concentrator/Muitiplexer ("IC/M")
                                       shall provide facility grooming, facility
                                       test functions, format conversion and
                                       signaling conversion, as appropriate.

                             8.4.1.3.2 The underlying equipment that provides
                                       such IC/M function shall continuously
                                       monitor protected circuit packs and
                                       redundant common equipment

                             8.4.1.3.3 The underlying equipment that provides
                                       such IC/M function shall automatically
                                       switch to a protection circuit pack on
                                       detection of a failure or degradation of
                                       normal operation.

                             8.4.1.3.4 The underlying equipment that provides
                                       such IC/M function shall be equipped with
                                       a redundant power supply or a battery
                                       back-up.

                             8.4.1.3.5 Pac-West may request U S WEST to provide
                                       Pac-West with real time performance
                                       monitoring and alarm data on IC/M
                                       elements that may affect Pac-West's
                                       traffic. This includes IC/M hardware
                                       alarm data and facility alarm data on the
                                       underlying device that provides such IC/M
                                       function.

                             8.4.1.3.6 Pac-West may request U S WEST to provide
                                       Pac-West with real time ability to
                                       initiate tests on the underlying device
                                       that provides such IC/M function
                                       integrated test equipment as well as
                                       other integrated functionality for
                                       routine testing and fault isolation.

              8.4.1.4 Interface Requirements

                      8.4.1.4.1     The Loop Concentrator/Multiplexer shall meet
                                    the following interface requirements, as
                                    appropriate for the configuration that
                                    Pac-West designates:

                      8.4.1.4.2     The Loop Concentrator/Multiplexer shall
                                    provide an analog voice frequency copper
                                    twisted pair interface at the serving wire
                                    center.

                      8.4.1.4.3     The Loop Concentrator/Multiplexer shall
                                    provide digital 4-wire electrical interfaces
                                    at the serving wire center.

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<PAGE>

         8.4.1.4.4    The Loop Concentrator/Multiplexer shall provide optical
                      SONET interfaces at rates of Ol.C-3, OC-12, OC-48. and
                      CC-N.

         8.4.1.4.5    The Loop Concentrator/Multiplexer shall provide the
                      Bellcore TR-303 DS-1 level interface at the serving wire
                      center. Loop Concentrator/ Multiplexer shall provide
                      Bellcore TR-08 modes 1 & 2 DS1 interfaces when designated
                      by Pac-West

         8.4.1.4.6    The Intelligent Loop Concentrator/Multiplexer shall be
                      provided to Pac-West in accordance with the Technical
                      References set forth in Sections 8.4.1.2.4.8 through
                      8.4.1.2.4.11, above.

8.4.2    Loop Feeder

    8.4.2.1 Definition:

         8.4.2.1.1    The Loop Feeder is the Network Element that provides
                      connectivity between (a) a Feeder Distribution Interface
                      ("FDI") associated with Loop Distribution and a
                      termination point appropriate for the media in a central
                      office, or (b) a Loop Concentrator/Multiplexer provided in
                      a remote terminal and a termination point appropriate for
                      the media in a central office.

         8.4.2.1.2    Pursuant to a Bona Fide Request for unbundled feeder or
                      distribution, U S WEST shall provide Pac-West physical
                      access to the FDI and the right to connect the Loop Feeder
                      to the FDI.

         8.4.2.1.3    Upon request from Pac-West regarding a specific area, U S
                      WEST shall provide information an FDI within a reasonable
                      time. If such information is available as part of U S
                      WEST's operations support system, it must be made
                      available to Pac-West on the same terms and conditions as
                      it is available to U S WEST.

         8.4.2.1.4    The physical medium of the Loop Feeder may be copper
                      twisted pair, or single or multi-mode fiber or other
                      technologies as designated by Pac-West. In certain cases,
                      Pac-West will require a copper twisted pair loop even in
                      instances where the medium of the Loop Feeder for services
                      that U S WEST offers is other than a copper facility.
                      Special construction charges may apply if no copper
                      twisted pair facilities are available.

                       8.4.2.2 Requirements for Loop Feeder

                           8.4.2.2.1     The Loop Feeder shall be capable of
                                         transmitting analog voice frequency,
                                         basic rate ISDN, digital data, or,
                                         where available in the network, analog
                                         radio frequency signals, as
                                         appropriate.

                           8.4.2.2.2     U S WEST shall provide appropriate
                                         power for all active elements in the
                                         Loop Feeder. U S WEST will provide
                                         appropriate power from a central office
                                         source, or from a commercial AC source
                                         with rectifiers for AC to DC conversion
                                         and 8-hour battery back-up when the
                                         equipment is located in an outside
                                         plant Remote Terminal ("RT").

                                       20
<PAGE>

                  8.4.2.3  Additional Requirements for Special Cooper Loop
                           Feeder Medium

                           In addition to the requirements set forth above,
                           Pac-West may require U S WEST to provide copper
                           twisted pair Loop Feeder unfettered by any
                           intervening equipment (e.g., filters, load coils, and
                           range extenders), so that Pac-West can use these Loop
                           Feeders for a variety of services by attaching
                           appropriate terminal equipment at the ends.

                  8.4.2.4  Additional Technical Requirements for DS-1
                           Conditioned Loop Feeder

                           In addition to the requirements set forth above,
                           Pac-West may designate that the Loop Feeder be
                           conditioned to transport a DS-1 signal. The
                           requirements for such transport are defined in the
                           references below in Section 8.4.2.6.

                  8.4.2.5  Additional Technical Requirements for Optical Loop
                           Feeder

                           In addition to the requirements set forth above,
                           Pac-West may designate that Loop Feeder will
                           transport DS-3 and OC-n (where "n" is defined in the
                           technical reference in Section 8.4.1.2.4.4). The
                           requirements for such transport are defined in the
                           references below in Section 8.4.2.6.

                  8.4.2.6  In accordance with Sections 1.3.1 and 1.3.2 of Part A
                           of this Agreement, U S WEST shall offer Loop Feeder
                           in compliance with the requirements set forth in the
                           following Technical References:

                       8.4.2.6.1     Bellcore Technical Requirement
                                     TR-NWT-000499, Issue 5, December 1993,
                                     section 7 for DS-1 interfaces;

                       8.4.2.6.2     Bellcore TR-NWT-000057, Functional Criteria
                                     for Digital Loop Carder Systems, Issue 2,
                                     January 1993;

                       8.4.2.6.3     Bellcore TR-NWT-000393, Generic
                                     Requirements for ISDN Basic Access Digital
                                     Subscriber Lines;

                       8.4.2.6.4     ANSI T1. 106-1988, American National
                                     Standard for Telecommunications - Digital
                                     Hierarchy - Optical Interface
                                     Specifications (Single Mode);

                       8.4.2.6.5     ANSI T1. 105-1995, American National
                                     Standard for Telecommunications -
                                     Synchronous Optical Network (SONET) - Basic
                                     Description including Multiplex Structure,
                                     Rates and Formats;

                       8.4.2.6.6     ANSI T1. 102-1993, American National
                                     Standard for Telecommunications - Digital
                                     Hierarchy - Electrical Interfaces;

                       8.4.2.6.7     ANSI T1.403-1989, American National
                                     Standard for Telecommunications - Carder to
                                     Subscriber Installation, DS-1 Metallic
                                     Interface Specification; and

                       8.4.2.6.8     Bellcore GR-253-CORE, Synchronous Optical
                                     Network Systems (SONET), Common Generic
                                     Criteria.

                                       21
<PAGE>

                  8.4.2.7 Interface Requirements

                           8.4.2.7.1 The Loop Feeder point of termination
                           ("POT") within a U S WEST central office will be as
                           follows:

                                8.4.2.7.1.1 Copper twisted pairs shall terminate
                                an the MDF:

                                8.4.2.7.1.2 DS-1 Loop Feeder shall terminate on
                                a DSX1, DCS1/0 or DCS3/1: and

                                8.4.2.7.1.3 Fiber optic cable shall terminate on
                                a light guide termination panel or equivalent.

                           8.4.2.7.2 In accordance with Sections 1.3.1 and 1.3.2
                           of Part A of this Agreement, Loop Feeder shall be
                           equal to or better than each of the applicable
                           interface requirements set forth in the following
                           technical references:

                                8.4.2.7.2.1 Bellcore TR-TSY-000008, Digital
                                Interface Between the SLC 96 Digital Loop
                                Carrier System and a Local Digital Switch, Issue
                                2, August 1987;

                                8.4.2.7.2.2 Bellcore TR-NWT-000303, Integrated
                                Digital Loop Carrier System Generic
                                Requirements, Objectives and Interface, Issue 2,
                                December 1992; Rev. 1, December 1993; Supplement
                                1, December 1993; and

                                8.4.2.7.2.3 Bellcore Integrated Digital Loop
                                Carrier System Generic Requirements, Objectives
                                and Interface, GR-303-CORE, Issue 1, September
                                1995.

9.       Distribution

          9.1      Definition:

                  9.1.1    Distribution provides connectivity between the NID
                           component of Loop Distribution and the terminal block
                           on the subscriber-side of an FDI. The FDI is a device
                           that terminates the Distribution Media and the Loop
                           Feeder, and cross-connects them in order to provide a
                           continuous transmission path between the NID and a
                           telephone company central office. There are three (3)
                           basic types of feeder-distribution connections: (a)
                           multiple (splicing of multiple distribution pairs
                           onto one (1) feeder pair); (b) dedicated ("home
                           run"); and (c) interfaced ("cross-connected"). While
                           older plant uses multiple and dedicated methods,
                           newer plant and all plant that uses DLC or other
                           pair-gain technology necessarily uses the interfaced
                           connection method. The FDI in the interfaced design
                           makes use of a manual cross-connection, typically
                           housed inside an outside plant device ("green box")
                           or in a vault or manhole.

                  9.1.2    The Distribution may be copper twisted pair, coax
                           cable, single or multi-mode fiber optic cable or
                           other technologies. A combination that includes two
                           (2) or more of these media is also possible. In
                           certain cases, Pac-West shall require a copper
                           twisted pair Distribution even in instances where the
                           Distribution for services that U S WEST offers is
                           other than a copper facility. Special construction
                           charges may apply if no copper twisted pair
                           facilities are available.

         9.2       Requirements for All Distribution

                                       22
<PAGE>

                  9.2.1    Distribution shall be capable of transmitting signals
                           for the following services, as requested by Pac-West:

                           9.2.1.1  two-wire & four-wire analog voice grade
                                    loops; and

                           9.2.1.2  two-wire & four-wire loops conditioned to
                                    transmit the digital signals needed to
                                    provide digital services.

                  9.2.2    Distribution shall transmit all signaling messages or
                           tones. Where the Distribution includes any active
                           elements that terminate any of the signaling messages
                           or tones, these messages or tones shall be reproduced
                           by the Distribution at the interfaces to an adjacent
                           Network Element in a format that maintains the
                           integrity of the signaling messages or tones.

                  9.2.3    U S WEST shall not interfere with Pac-West's ability
                           to support functions associated with provisioning,
                           maintenance, performance monitoring and testing of
                           the unbundled Distribution.

                  9.2.4    Distribution shall be equal to or better than ail of
                           the applicable requirements set forth in the
                           following technical references:

                           9.2.4.1  Bellcore TR-TSY-000057, "Functional Criteria
                                    for Digital Loop Carrier Systems-, and

                           9.2.4.2  Bellcore TR-NWT-000393, "Generic
                                    Requirements for ISDN Basic Access Digital
                                    Subscriber Lines".

          9.3     Additional Requirements for Special Copper Distribution

                  In addition to Distribution that supports the requirements set
                  forth in Section 9.2. above, Pac-West may designate
                  Distribution to be copper twisted pair unfettered by any
                  intervening equipment (e.g., filters, load coils, range
                  extenders) so that Pac-West can use these loops for a variety
                  of services by attaching appropriate terminal equipment at the
                  ends.

         9.4      Additional Requirements for Fiber Distribution

                  Fiber optic cable Distribution shall be capable of
                  transmitting signals for the following services in addition to
                  the those set forth in Section 9.2.1 above:

                  9.4.1    DS-3 rate private line service;

                  9.4.2    Optical SONET OC-n rate private lines (where 'n" is
                           defined in the technical reference in Section
                           8.4.1.2.4.4); and

                  9.4.3    Where available in the U S WEST network, Analog Radio
                           Frequency based services (e.g.,'Cable Television
                           (CATV)).

         9.5      Additional Requirements for Coaxial Cable Distribution

                  Where available in the U S WEST network, coaxial cable (coax)
                  Distribution shall be capable of transmitting signals for the
                  following services in addition to those set forth in Section
                  9.2.1 above:

                                       23
<PAGE>

                  9.5.1    Broadband data, either one way or bi-directional,
                           symmetric or asymmetric rates between 1.5 Mb/s and 45
                           Mb/s; and

                  9.5.2    Analog Radio Frequency based services (e.g., CATV).

         9.6      Interface Requirements

                  9.6.1    Signal transfers between the Distribution and the NID
                           and an adjacent Network Element shall have levels of
                           degradation that are within the performance
                           requirements set forth in Section 18.2 of this
                           Attachment.

                  9.6.2    Distribution shall be at least equal to each of the
                           applicable interface requirements set forth in the
                           following technical references:

                           9.6.2.1  Bellcore TR-NWT-000049, "Generic
                                    Requirements for Outdoor Telephone Network
                                    Interface Devices", issued December 1, 1994;

                           9.6.2.2  Bellcore TR-NWT-000057, "Functional Criteria
                                    for Digital Loop Ca Systems", issued January
                                    2, 1993;

                           9.6.2.3  Bellcore TR-NWT-000393, "Generic
                                    Requirements for ISDN Basic Access Digital
                                    Subscriber Lines"; and

                           9.6.2.4  Bellcore TR-NWT-000253, SONET Transport
                                    Systems: Common (A module of TSGR,
                                    FR-NWT-000440), Issue 2, December 1991.

10.      Local Switching

         10.1     Definition:

                  10.1.1   Local Switching is the Network Element that provides
                           the functionality required to connect the appropriate
                           lines or trunks wired to the Main Distributing Frame
                           ("MDF") or Digital Cross Connect ("DCC") panel to a
                           desired line or trunk. The desired connection path
                           for each call type will vary by subscriber and will
                           be specified by Pac-West as a routing scenario that
                           will be implemented in advance as part of or after
                           the purchases of the unbundled Local Switching. Such
                           functionality shall include all of the features,
                           functions, and capabilities that the underlying U S
                           WEST local switch is capable of providing,(7)
                           including, but not limited to: line signaling and
                           signaling software, digit reception, dialed number
                           translations, call screening, routing, recording,
                           call supervision, dial tone, switching, telephone
                           number provisioning, announcements, calling features
                           and capabilities (including call processing),
                           Centrex, or Centrex-like services, Automatic Call
                           Distributor ("ACD"), Carrier pre-subscription (e.g.,
                           long distance carrier, intraLATA toll), Carrier
                           Identification Code ("CIC"), number portability
                           capabilities, testing and other operational features
                           inherent to the switch and switch software. The Local
                           Switching function also provides access to transport,
                           signaling (ISDN User Part ("ISUP") and

                                       24
<PAGE>

                  Transaction Capabilities Application Part ("TCAP")), and
                  platforms such as adjuncts, Public Safety Systems (911),
                  Operator Services, Directory Assistance Services and Advanced
                  Intelligent Network ("AIN"). Remote Switching Module
                  functionality is included in the Local Switching function.
                  Local Switching shall also be capable of routing local,
                  intraLATA, interLATA, and international calls to the
                  subscriber's preferred carrier, call features (e.g., call
                  forwarding) and Centrex capabilities.

         10.1.2   Local Switching, including the ability to route to Pac-West's
                  transport facilities, dedicated facilities and systems, shall
                  be unbundled from all other unbundled Network Elements, i.e.,
                  Operator Systems, Common Transport, Shared Transport and
                  Dedicated Transport.

10.2     Technical Requirements

         10.2.1   Local Switching shall be equal to or better than the
                  requirements for Local Switching set forth in Bellcore's Local
                  Switching Systems General Requirements FR-NWT-000064.

                  10.2.1.1     U S WEST shall route calls to the appropriate
                               trunk or lines for call origination or
                               termination.

                  10.2.1.2     U S WEST shall route calls on a per line or per
                               screening class basis to (a) U S WEST platforms
                               providing Network Elements or additional
                               requirements, (b) Pac-West designated platforms,
                               or (c) third-party platforms.

                  10.2.1.3     U S WEST shall provide to Pac-West recorded
                               announcements as furnished by Pac-West and call
                               progress tones to alert callers of call progress
                               and disposition. The installation cost shall be
                               borne by Pac-West for such announcements and call
                               progress tones to the extent they are different
                               than those standardly used by U S WEST.

                  10.2.1.4     U S WEST shall change a subscriber from U S
                               WEST's services to Pac-West's services without
                               loss of feature functionality, unless designated
                               otherwise by Pac-West.

                  10.2.1.5     U S WEST shall perform routine testing (e.g.,
                               Mechanized Loop Tests ("MLT") and test calls such
                               as 105, 107 and 108 type calls) and fault
                               isolation on Pac-West's unbundled Network
                               Elements, as designated by Pac-West.

                 10.2.1.6      U S WEST shall repair and restore any equipment
                               or any other maintainable component that may
                               adversely impact Pac-West's use of unbundled
                               Local Switching.

                 10.2.1.7      U S WEST shall control congestion points such as
                               mass calling events and network routing
                               abnormalities using capabilities such as
                               Automatic Call Gapping, Automatic Congestion
                               Control, and Network Routing Overflow.
                               Application of such control shall be
                               competitively neutral and not favor any user of
                               unbundled switching or U S WEST.

                 10.2.1.8      U S WEST shall perform manual call trace as
                               designated by Pac-West and shall permit
                               subscriber originated call trace.

                                       25
<PAGE>

                 10.2.1.9     U S WEST shall record 211 billable events.
                              involving usage of the Network Element, and send
                              the appropriate recording data to Pac-West as
                              further described in Attachment 5.

                 10.2.1.10    For Local Switching used as E911 tandems, U S WEST
                              shall allow interconnection with Pac-West switches
                              in that same local switch used as a E911 tandem
                              and shall route calls to the appropriate Public
                              Safety Access Point (PSAP). In the event the Local
                              Switching element and the E911 tandem are
                              contained within the same U S WEST switch, such
                              trunking shall be provided on an intra-switch
                              basis.

                 10.2.1.11    Where U S WEST provides the following special
                              services, it shall provide to Pac-West:

                                10.2.1.11.1 essential Service Lines;

                                10.2.1.11.2 Telephone Service Prioritization
                                            ("TSP");

                                10.2.1.11.3 related services for handicapped;

                                10.2.1.11.4 where U S WEST provides soft dial
                                            tone, it shall do so on a
                                            competitively-neutral basis; and

                                10.2.1.11.5 any other service required by law or
                                            regulation.

                  10.2.1.12     U S WEST shall provide Switching Service Point
                                ("SSP") capabilities and signaling software to
                                interconnect the signaling links destined to the
                                Signaling Transfer Point Switch ("STP"). In the
                                event Local Switching is provided out of a
                                switch without SS7 capability, the Tandem shall
                                provide this capability as further described in
                                Section 4 of this Attachment 3. These
                                capabilities shall adhere to Bellcore
                                specifications TCAP (GR-1432-CORE), ISUP
                                (GR-905CORE), Call Management (GR-1429-CORE),
                                Switched Fractional DS1 (GR1357-CORE), Toll Free
                                Service (GR-1428-CORE), Calling Name
                                (GR-1597CORE), Line Information Database
                                (GR-954-CORE), and Advanced Intelligent Network
                                (GR-2863-CORE).

                  10.2.1.13     U S WEST shall provide interfaces to adjuncts
                                through industry standard and Bellcore
                                interfaces. These adjuncts may include, but are
                                not limited to, Service Node, Service Circuit
                                Node, Voice Mail and Automatic Call
                                Distributors. Examples of existing interfaces
                                are ANSI ISDN standards Q.931 and Q.932.

                  10.2.1.14     Upon Pac-West's request, U S WEST shall provide
                                performance data regarding a subscriber line,
                                traffic characteristics or other measurable
                                elements to Pac-West

                  10.2.1.15     U S WEST shall offer all technically feasible
                                Local Switching features, and, in providing such
                                features, do so at parity with those provided by
                                U S WEST to itself or any other Person.

                                10.2.1.15.1 Such feature offerings shall
                                            include, but are not limited to:

                                            Basic and primary rate ISDN;
                                            Residential features;

                                       26
<PAGE>

                                             Custom Local Area Signaling
                                             Services (CLASS/LASS);
                                             Custom Calling Features: and
                                             Centrex (including equivalent
                                             administrative capabilities,
                                             such as subscriber accessible
                                             reconfiguration and detailed
                                             message recording).

                                10.2.1.15.2  Pac-West may use the Bona Fide
                                             Request Process set forth in Part A
                                             of this Agreement to request
                                             unbundling of Advanced Intelligent
                                             Network ("AIN") triggers supporting
                                             Pac-West and U S WEST service
                                             applications in U S WEST's SCPs.(8)
                                             U S WEST shall offer AIN-based
                                             services in accordance with
                                             applicable technical references.
                                             Such services may include, but are
                                             not limited to:

                                             10.2.1.15.2.1  Off-Hook Immediate;
                                             10.2.1.15.2.2  Off-Hook Delay;
                                             10.2.1.15.2.3  Private EAMF Trunk;
                                             10.2.1.15.2.4  Shared Interoffice
                                                            Trunk (EAMF, SS7);
                                             10.2.1.15.2.5  Termination Attempt;
                                             10.2.1.15.2.6  3/6/10;
                                             10.2.1.15.2.7  N 11;
                                             10.2.1.15.2.8  Feature Code
                                                            Dialing;
                                             10.2.1.15.2.9  Custom Dialing
                                                            Plan(s), including
                                                            555 services; and
                                             10.2.1.15.2.10 Automatic Route
                                                            Selection.

                  10.2.1-16     U S WEST shall assign each Pac-West subscriber
                                line the class of service designated by Pac-West
                                (e.g., using line class codes or other switch
                                specific provisioning methods), and at
                                Pac-West's option shall route Directory
                                Assistance calls from Pac-West subscribers as
                                directed by Pac-West This includes each of the
                                following call types:

                                10.2.1.16.1      0+/0- calls;
                                10.2.1.16.2      911 calls;
                                10.2.1.16.3      41 1/DA calls;
                                10.2.1.16.4      InterLATA calls specific to
                                                 PIC or regardless of PIC;
                                10.2.1.16.5      IntraLATA calls specific to
                                                 PIC or regardless of PIC;
                                10.2.1.16.6      Toll free calls, prior to
                                                 database query;
----------

8 Per Order at page 10, Issue 19.

                                       27
<PAGE>

                  10.2.1.16.7      Call forwarding of any type supported on the
                  switch, to a line or a trunk; and

                  10.2.1.16.8      Any other customized routing that may be
                  supported by the U S WEST switch.

     10.2.1.17    U S WEST shall assign each Pac-West subscriber line the class
                  of service designated by Pac-West (e.g., using line class
                  codes or other switch specific provisioning methods) and shall
                  route operator calls from Pac-West t subscribers as directed
                  by Pac-West at Pac-West's option. For example, U S WEST may
                  translate 0- and 0+ intraLATA traffic, and route the call
                  through appropriate trunks to an Pac-West Operator Services
                  Position System (OSPS). Calls from Local Switching must pass
                  the ANI-11 digits unchanged

     102.1.18     If an Pac-West customer subscribes to Pac-West-provided voice
                  mail and messaging services, U S WEST shall redirect incoming
                  calls to the Pac-West system based upon designated service
                  arrangements (e.g., busy, don't answer, number of rings). In
                  addition, U S WEST shall provide a Standard Message Desk
                  Interface-Enhanced (SMDI-E) interface to the Pac-West system.
                  U S WEST shall support the Inter-switch Voice Messaging
                  Service (IVMS) capability.

     10.2.1.19    Local Switching shall be offered in accordance with the
                  requirements of the following technical references and their
                  future releases:

                  10.2.1.19.1 GR-1298-CORE, AIN Switching System Generic
                  Requirements;

                  10.2.1.19.2 GR-1299-CORE, AIN Switch-Service Control Point
                  (SCP)/Adjunct Interface Generic Requirements;

                  10.2.1.19.3 TIR-NWT-0011284, AIN 0.1 Switching System Generic
                  Requirements; and

                  10.2.1.19.4 SR-NWT-002247, AIN Release 1 Update.

10.2.2 Interface Requirements:

     10.2.2.1      U S WEST shall provide the following interfaces to Loops:

                  10.2.2.1.1   Standard Tip/Ring interface, including loopstart
                  or groundstart, on-hook signaling (e.g., for calling number,
                  calling name and message waiting lamp);

                  10.2.2.1.2   Coin phone signaling as part of a public access
                  line (PAL);(9)

                  10.2.2.1.3   Basic Rate Interface ISDN adhering to ANSI
                  standards 0.931, 0.932 and appropriate Bellcore Technical
                  Requirements;

----------

(9) Per Recommendations at page 26, Issue 143.

                                       28
<PAGE>

                10.2.2.1.4  Two-wire analog interface to PBX to include reverse
                            battery, E&M. wink start and DID;

                10.2.2.1.5  Four-wire analog interface to PBX to include reverse
                            battery, E&M, wink start and DID;

                10.2.2.1.6  Four-wire DS-1 interface to PBX or subscriber
                            provided equipment (e.g., computers and voice
                            response systems),,

                10.2.2.1.7  Primary Rate ISDN to PBX adhering to ANSI standards
                            Q.931, Q.93 and appropriate Bellcore Technical
                            Requirements;

                10.2.2.1.8  Switched Fractional DS-1 with capabilities to
                            configure Nx64 channel (where "n" = 1 to 24); and

                10.2.2.1.9  Loops adhering to Bellcore TR-NWT-08 and TR-NWT-303
                            specifications to interconnect Digital Loop
                            Carriers.

         10.2.2.2    U S WEST shall provide access to the following, but not
                     limited to:

                10.2.2.2.1   SS7 Signaling Network or Multi-Frequency trunking,
                             if requested by Pac-West;

                10.2.2.2.2   Interface to Pac-West operator services systems or
                             Operator Service through appropriate trunk
                             interconnections for the system; and

                10.2.2.2.3   Interface to Pac-West Directory Assistance Services
                             through the Pac-West switched network or to
                             Directory Services through the appropriate trunk
                             interconnections for the system; and 950 access or
                             other Pac-West required access to interexchange
                             carriers as requested through appropriate trunk
                             interfaces.

10.3     Customized routing

         10.3.1   Description

                  Customized routing will enable Pac-West to direct particular
                  classes of calls to particular outgoing trunks based upon fine
                  class codes. Pac-West may use customized routing to direct its
                  customers' calls to 411, 555-1212, 0+ or 0-, to its own
                  Operator Services platform Directory Assistance platform.

         10.3.2   Limitations

                  Because there is a limitation in the technical feasibility of
                  offering custom routing beyond the capacity of the 1A ESS
                  switch, custom routing will be offered to CLECs on a
                  first-come, first-served basis.

10.4    Integrated Services Digital Network

        10.4.1  Integrated Services Digital Network ("ISDN") is defined in two
                (2) variations. The first variation is Basic Rate ISDN ("BRI").
                BRI consists of 2 Bearer (B) Channels and one Data (D) Channel.
                The second variation is Primary Rate ISDN ("PRI").

                                       29
<PAGE>

                           PRI consists of 23 B Channels and one D Channel. Both
                           BRI and PRI B Channels may be used for voice, Circuit
                           Switched Data ("CSD") or Packet Switched Data
                           ("PSD"). The BRI D Channel may be used for call
                           related signaling, non-call related signaling or
                           Packet switched data. The PRI D Channel may be used
                           for call related signaling.

                    10.4.2 Technical Requirements -ISDN

                           10.4.2.1   U S WEST shall offer Data Switching
                                      providing ISDN that. at a minimum:

                           10.4.2.2   provides integrated Packet handling
                                      capabilities:

                           10.4.2.3   allows for full 2B+D Channel functionality
                                      for BRI; and

                           10.4.2.4   allows for full 238+D Channel
                                      functionality for PRI.

                           10.4.2.5   Each B Channel shall allow for voice, 64
                                      Kbps CSD, and PSD of 128 logical channels
                                      at minimum speeds of 19 Kbps throughput of
                                      each logical channel up to the total
                                      capacity of the B Channel.

                           10.4.2.6   Each 8 Channel shall provide capabilities
                                      for alternate voice and data on a per call
                                      basis.

                           10.4.2.7   The BRI D Channel shall allow for call
                                      associated signaling, non-call associated
                                      signaling and PSID of 16 logical channels
                                      at Minimum speeds of 9.6 Kbps throughput
                                      of each logical channel up to the total
                                      capacity of the D channel.

                           10.4.2.8   The PRI D Channel shall allow for call
                                      associated signaling.

                  10.4.3 Interface Requirements- ISDN

                           10.4.3.1   U S WEST shall provide the BRI interface
                                      using Digital Subscriber Loops adhering to
                                      Bellcore TR-NWT-303 Specifications to
                                      Interconnect Digital Loop Carriers.

                           10.4.3.2   U S WEST shall offer PSD interfaces
                                      adhering to the X.25, X.75 and X.75'ANS1
                                      and Bellcore requirements.

                           10.4.3.3   U S WEST shall offer PSD trunk interfaces
                                      operating at 55-6 Kbps.

11.      Network Interface Device

         11.1     Definition:

                  11.1.1   The Network Interface Device ("NID") is a single-line
                           termination device or that portion of a multiple-line
                           termination device required to terminate a single
                           line or circuit One of the functions of the NID is to
                           establish the network demarcation point between a
                           carrier and its subscriber. The NID features two (2)
                           independent chambers or divisions which separate the
                           service provider's network from the subscriber's
                           inside wiring. Each chamber or division contains the
                           appropriate

                                       30
<PAGE>

                 connection points or posts to which the service provider and
                 the subscriber each make their connections.

        11.1.2   Pac-West may connect its NID to U S WEST's NID.

        11.1.3   U S WEST will allow Pac-West to locate dropwires, other than U
                 S WEST's drop wires, inside an existing U S WEST combination
                 NID used in the provisioning of telephone service for single
                 tenant end users subject to the following conditions:

                 11.1.3.1   Sufficient space exists inside the combination NID
                            to allow proper installation of equipment in
                            accordance with the NID manufacturers specifications
                            and per the National Electric Code:

                 11.1.3.2   In order to maintain maintenance integrity for the
                            NID, Pac-West will install its own overvoltage
                            protection and customer bridging equipment,
                            terminate the dropwires to that equipment, and
                            assume all operational responsibilities and
                            liabilities for that equipment;

                  In the event sufficient space is not available in the existing
                  U S WEST NID, to accommodate additional drops, Pac-West will
                  be allowed to install and additional NID, at its own expense
                  and the Pac-West's NID can be connected to the existing U S
                  WEST NID;

                  If the existing NID is not the new generation modular type,
                  Pac-West may install a new NID. U S WEST will be allowed to
                  move its dropwire to the new NID and remove the old NID;

                  Within ninety (90) days of the Effective Date of this
                  Agreement, the Parties agree to jointly develop a satisfactory
                  process to address the issues with access to single and
                  multi-party NIDs.

         11.1.4   With respect to multiple-line termination devices, Pac-West
                  shall specify the quantity of NIDs it requires within such
                  device.

11.2     Technical Requirements

         11.2.1   The N I D shall provide a clean, accessible point of
                  connection for the inside wiring and for the Distribution
                  Media and/or cross connect to Pac-West's NID and shall
                  maintain a connection to ground meeting the requirements as
                  set forth below.

                  11.2.2   The NID shall be capable of transferring electrical
                           analog or digital signals between the subscriber's
                           inside wiring and the Distribution Media and/or cross
                           connect to Pac-West's NID.

                  11-2.3   All NID posts or connecting points shall be in place,
                           secure, usable and free of any rust or corrosion. The
                           protective around connection shall exist and be
                           properly installed. The ground wire shall be free of
                           rust and corrosion and have continuity to ground.

                  11.2.4   The NID shall be capable of withstanding all normal
                           local environmental variations.

                  11-2.5   Where the NID is not located in a larger, secure
                           cabinet or closet, the NID shall be protected from
                           vandalism. The NID shall be accessible to Pac-West
                           designated

                                       31
<PAGE>

                  personnel. In cases where entrance to the subscriber premises
                  is required to give access to the NID, Pac-West shall obtain
                  entrance permission directly from the subscriber.

         11.2.6   U S WEST shall offer the NID together with, and separately
                  from. the Distribution Media component of Loop Distribution.

11.3     Interface Requirements

         11.3.1   The NID shall be the interface to subscribers' premises wiring
                  for all loops.

         11.3.2   The NID shall beat least equal to all the industry standards
                  for NIDs set forth in the following technical references:

                  11.3.2.1    Bellcore Technical Advisory TA-TSY-000 120
                              "Subscriber Premises or Network Ground Wire";

                  11.3.2.2    Bellcore Generic Requirement GR-49-CORE "Generic
                              Requirements for Outdoor Telephone Network
                              Interface Devices";

                  11.3.2.3    Bellcore Technical Requirement TR-NWT-00239
                              "Indoor Telephone Network Interfaces";

                  11.3.2.4    Bellcore Technical Requirement TR-NWT-000937
                              "Generic Requirements for Outdoor and Indoor
                              Building Entrance"; and

                  11.3.2.5    Bellcore Technical Requirement TR-NWT-0001 33
              "Generic Requirements for Network Inside Wiring."

12.      Operator Systems

         See Part A.

13.      E91 I

         See Part A.

14.      Directory Assistance Data

         See Part A.

15.      Signaling Link Transport

          15.1    Definition:

                  Signaling Link Transport is a set of two (2) or four (4)
                  dedicated 56 Kbps transmission paths between
                  Pac-West-designated Signaling Points of Interconnection
                  ("SPOI") that provides appropriate physical diversity and a
                  cross connect at a U S WEST STP site.

          15.2    Technical Requirements

                                       32
<PAGE>

         15.2.1   Signaling Link Transport shall consist of full duplex mode 56
                  Kbps transmission paths.

         15.2.2   Of the various options available, Signaling Link Transport
                  shall perform in the following two ways:

                  15.2.1.1     as an "A-link" which is a connection between a
                               switch or SCP and a home Signaling Transfer Point
                               ("STP") pair and

                  15.2.1.2     as a "D-link" which is a connection between two
                               (2) STP pairs in different company networks
                               (e.g., between two (2) STP pairs for two (2)
                               (CLECs)).

         15.2.3   Signaling Link Transport shall consist of two (2) or more
                  signaling link layers as follows:

                  15.2.3.1 An A-link layer shall consist of two (2) links.

                  15.2.3.2A D-link layer shall consist of four (4) links.

         15.2.4   A signaling link layer shall satisfy a performance objective
                  such that:

                  15.2.4.1     there shall be no more than two (2) minutes down
                               time per year for an A-link layer transport only,
                               and

                  15.2.4.2     there shall be negligible (less than 2 seconds)
                               down time per year for a D-link layer transport
                               only.

         15.2.5   Where available, a signaling link layer shall satisfy
                  interoffice and intraoffice diversity of facilities and
                  equipment, such that:

                  15.2.5.1     no single failure of facilities or equipment
                               causes the failure of both links in an A-link
                               layer (i.e., the links should be provided on a
                               minimum of two (2) separate physical paths
                               end-to-end); and

                  15.2.5.2     no two concurrent failures of facilities or
                               equipment shall cause the failure of ail four (4)
                               links in a D-link layer (i.e., the links should
                               be provided on a minimum of three (3) separate
                               physical paths end-to- end).

         15.2.6   For requested link layers, U S WEST will provide Pac-West with
                  the level of diversity available.

     15.3     Interface Requirements

         15.3.1   There shall be a DS-1 (1.544 Mbps) interface at the
                  Pac-West-designated SPOIs. Each 56 Kbps transmission path
                  shall appear as a DS-0 channel within the DS-1 interface.

16.      Signaling Transfer Points (STPs)

     16.1    Definition:

                                       33
<PAGE>

Signaling Transfer Points ("STP"s) provide functionality that enable the
exchange of SS7 messages among and between switching elements. database elements
and signaling transfer points.

16.2     Technical Requirements

         16.2.1   STPs shall provide signaling access to all other Network
                  Elements connected to the U S WEST SS7 network. These include.

                  16.2.1.1      U S WEST Local Switching or Tandem Switching;
                  16.2.1.2      U S WEST Service Control Points/Data Bases
                                connected to or resident on service control
                                points;
                  16.2.1.3      Third-party local or tandem switching systems
                                connected to the U S WEST signaling network; and
                  16.2.1.4      Third-party-provided STPs connected to the U S
                                WEST signaling network.

         16.2.2   The connectivity provided by STPs shall fully support the
                  functions of all other Network Elements connected to U S
                  WEST's SS7 network. This includes the use of U S WEST's SS7
                  network to convey messages which neither originate nor
                  terminate at a signaling end point directly connected to the U
                  S WEST SS7 network (i.e., transit messages). When the U S WEST
                  SS7 network is used to convey transit messages, there shall be
                  no alteration of the Integrated Services Digital Network User
                  Part ("ISDNUP") or Transaction Capabilities Application Part
                  ("TCAP") user data that constitutes the content of the
                  message.

         16.2.3   If a U S WEST tandem switch routes traffic, based on dialed or
                  translated digits, on SS7 trunks between an Pac-West local
                  switch and third party local switch, U S WEST's SS7 network
                  shall convey the TCAP messages necessary to provide Call
                  Management features (automatic callback, automatic recall, and
                  screening list editing) between the Pac-West local STPs and
                  the STPs that provide connectivity with the third party local
                  switch, even if the third party local switch is not directly
                  connected to U S WEST's STPs.

         16.2.4   STPs shall provide all functions of the MTP as specified in
                  ANSI T1. 111 (Reference 12.5.2). This includes:

                  16.2.4.1 Signaling Data Link functions, as specified in ANSI
                           T1. 111.2;

                  16.2.4.2 Signaling Link functions, as specified in ANSI T1.
                           111.3; and

                  16.2.4.3 Signaling Network Management functions, as specified
                           in ANSI T1. 111.4.

         16-2.5   STPs shall provide all functions of the SCCP necessary for
                  Class 0 (basic connectionless) service, as specified in ANSI
                  T1. 112. In particular, this includes Global Title Translation
                  ("GT7) and SCCP Management procedures, as specified in ANSI
                  T1. 112.4.

                                       34
<PAGE>

         16.2.6   In cases where the destination signaling point is either a U S
                  WEST local or tandem switching system or data base, or is an
                  Pac-West or third party local or tandem switching system
                  directly connected to U S WEST's SS7 network, U S WEST STPs
                  shall perform final GTT of messages to the destination and
                  SCCP Subsystem Management of the destination. In ail other
                  cases, STPs shall perform intermediate GTT of messages to a
                  gateway pair of STPs in an SS7 network connected with the U S
                  WEST SS7 network, and shall not perform SCCP Subsystem
                  Management of the destination.

         16.2.7   STPs shall also provide the capability to route SCCP messages
                  based on ISNI, as specified in ANSI T1. 118, when this
                  capability becomes available on U S WEST STPs.

         16.2.8   STPs shall provide all functions of the OMAP commonly provided
                  by STPs, as specified in the reference in Section 16.5.6. This
                  includes:

                  16.2.8.1      MTP Routing Verification Test ("MRVT); and,

                  16.2.8.2      SCCP Routing Verification Test ("SRVT").

         16.2.9   In cases where the destination signaling point is either a U S
                  WEST local or tandem switching system or database, or is an
                  Pac-West or third party local or tandem switching system
                  directly connected to the U S WEST SS7 network, STPs shall
                  perform MRVT and SRVT to the destination signaling point. In
                  all other cases, STPs shall perform MRVT and SRVT to a gateway
                  pair of STPs in an SS7 network connected with the U S WEST SS7
                  network. This requirement shall be superseded by the
                  specifications for inter-network MRVT and SRV`T if and when
                  these become approved ANSI standards and available
                  capabilities of U S WEST STPs.

         16.2.10  STPs shall be equal to or better than the following
                  performance requirements:

                  16.2.10.1     MTP Performance, as specified in ANSI T1. 111.6;
                                and

                  16.2.10.2     SCCP Performance, as specified in ANSI T1.112.5.

16.3     Interface Requirements

         16.3.1   U S WEST shall provide the following STPs options to connect
                  Pac-West or Pac-West-designated local switching systems or
                  STPs to the U S WEST SS7 network:

                  16.3.1.1 An A-link interface from Pac-West local switching
                           systems.

         16.3.2   Each type of interface shall be provided by one or more sets
                  (layers) of signaling links, as follows:

                  16.3.2.1 An A-link layer shall consist of two (2) links.

         16.3.3   The Signaling Point of Interconnection ("SPOI") for each link
                  shall be located at a cross-connect element, such as a DSX-1,
                  in the central office where the U S WEST STPs are located.
                  There shall be a DS-1 or higher rate transport interface at
                  each of the SPOIs. Each signaling link shall appear as a DS-0
                  channel within the DS-1 or higher rate interface.

                                       35
<PAGE>

                  U S WEST shall offer higher rate DS-1 signaling for
                  interconnecting Pac-West local switching systems or STPs with
                  U S WEST STPs as soon as these become approved ANSI standards
                  and available capabilities in U S WEST's network.

         16.3.4   U S WEST shall provide MTP and SCCP protocol interfaces that
                  shall conform to all relevant sections in the following
                  specifications:

                  16.3.4.1      Bellcore GR-905-CORE, Common Channel Signaling
                                Network Interface Specification (CCSNIS)
                                Supporting Network Interconnection, Message
                                Transfer Part (MTP), and Integrated Services
                                Digital Network User Part (ISDNUP); and

                  16.3.4.2      Bellcore GR-1432-CORE, CCS Network Interface
                                Specification (CCSNIS) Supporting Signaling
                                Connection Control Part (SCCP) and Transaction
                                Capabilities Application Part (TCAP).

16.4     Message Screening

         16.4.1   U S WEST shall set message screening parameters in order to
                  accept messages from Pac-West local or tandem switching
                  systems destined to any signaling point in the U S WEST SS7
                  network with which the Pac-West switching system has a
                  signaling relation.

         16.4.2   U S WEST shall set message screening parameters in order to
                  accept messages from Pac-West local or tandem switching
                  systems destined to any signaling point or network
                  interconnected to the U S WEST SS7 network with which the
                  Pac-West switching system has a signaling relation.

         16.4.3   U S WEST shall set message screening parameters in order to
                  accept messages destined to an Pac-West local or tandem
                  switching system from any signaling point or network
                  interconnected to the U S WEST SS7 network with which the
                  Pac-West switching system has a signaling relation.

         16-4.4   U S WEST shall set message screening parameters in order to
                  accept and send messages destined to an Pac-West SCP from any
                  signaling point or network interconnected to the U S WEST SS7
                  network with which the Pac-West SCP has a signaling relation.

16.5     STP Requirements

         16-5.1   Subject to the provisions of Section 1.3.1 and 1.3.2 of Part A
                  of this Agreement STPs shall be equal to or better than all of
                  the requirements for STPs set forth in the following technical
                  references:

         16.5.2   ANSI T1. 111-1992 American National Standard for
                  Telecommunications - Signaling System Number 7 (SS7) - Message
                  Transfer Part (MTP);

         16.5.3    ANSI T1. 11 1A-1 994 American National Standard for
                   Telecommunications - Signaling System Number 7 (SS7) -
                   Message Transfer Part (MTP) Supplement

         16.5.4    ANSI T1. 112-1992 American National, Standard for
                   Telecommunications - Signaling System Number 7 (SS7) -
                   Signaling Connection Control Part (SCCP);

                                       36
<PAGE>

         16.5.5   ANSI T1. 1150-1990 American National Standard for
                  Telecommunications - Signaling System Number 7 (SS7) -
                  Monitoring and Measurements for Networks:

         16.5.6   ANSI T1. 116-1990 American National Standard for
                  Telecommunications - Signaling System Number 7 (SS7) -
                  Operations, Maintenance and Administration Part (OMAP);

         16.5.7   ANSI T1. 118-1992 American National Standard for
                  Telecommunications - Signaling System Number 7 (SS7) -
                  Intermediate Signaling Net-work Identification (ISNI);

         16.5.8   Bellcore GR-905-CORE, Common Channel Signaling Network
                  Interface Specification (CCSNIS) Supporting Network
                  Interconnection, Message Transfer Part (MTP), and Integrated
                  Services Digital Network User Part (ISDNUP); and

         16.5.9   Bellcore GR-1432-CORE, CCS Network Interface Specification
                  (CCSNIS) Supporting Signaling Connection Control Part (SCCP)
                  and Transaction Capabilities Application Part (TCAP).

17.      Service Control Points/Databases

         17.1     Definition:

         17.1.1   Databases are the Network Elements that provide the
                  functionality for storage of, access to, and manipulation of
                  information required to offer a particular service and/or
                  capability. Databases include, but are not limited to: Number
                  Portability, LIDB, Toil Free Number Database, Automatic
                  Location Identification/Data Management System and AIN.

         17.1.2   A Service Control Point ("SCP") is a specific type of Database
                  Network Element functionality deployed in a Signaling System 7
                  ("SS7") network that executes service application logic in
                  response to SS7 queries sent to it by a switching system also
                  connected to the SS7 network. SCPs also provide operational
                  interfaces to allow for provisioning, administration and
                  maintenance of subscriber data and service application data
                  (e.g., a toll free database stores subscriber record data that
                  provides information necessary to route toll free calls).

         17.2     Technical Requirements for SCPs/Databases

                  Requirements for SCPs/Databases within this section address
                  storage of information, access to information (e.g., signaling
                  protocols and response times), and administration of
                  information (e.g., provisioning, administration, and
                  maintenance). All SCPs/Databases shall be provided to Pac-West
                  in accordance with the following requirements, except where
                  such a requirement is superseded by specific requirements set
                  forth in Subparagraphs 17.3 through 17.7 of this Attachment:

                  17.2.1   U S WEST shall provide interconnection to SCPs
                           through the U S WEST designated STPs using SS7
                           network and protocols, as specified in Section 16 of
                           this Attachment, with TCAP as the application layer
                           protocol.

                  17.2.2   Regional SCP pairs shall be available pursuant to
                           applicable technical reference documents.

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<PAGE>

                  17.2.3   U S WEST shall provide to Pac-West Database
                           provisioning consistent with the provisioning
                           requirements of this Agreement (e.g., data required,
                           edits. acknowledgments, data format and transmission
                           medium and notification of order completion).

                  17.2.4   The operational interface provided by U S WEST shall
                           complete Database transactions (i.e., add, modify,
                           delete) for Pac-West subscriber records stored in U S
                           WEST databases at panty with which U S WEST
                           provisions its own subscriber records.

                  17.2.5   U S WEST shall provide Database maintenance
                           consistent with the maintenance requirements as
                           specified in this Agreement (e.g., notification of U
                           S WEST network affecting events, testing, dispatch
                           schedule and measurement and exception reports).

                  17.2.6   When and where available, U S WEST shall provide
                           billing and recording information to track Database
                           usage consistent with Connectivity Billing and
                           recording requirements as specified in this Agreement
                           (e.g., recorded message format and content,
                           timeliness of feed, data format and transmission
                           medium).

                  17-2.7   U S WEST shall provide SCPs/Datab2ses in accordance
                           with the physical security requirements specified in
                           this Agreement.

                  17.2.8   U S WEST shall provide SCPs/Databases in accordance
                           with the logical security requirements specified in
                           this Agreement.

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<PAGE>

17.3     Number Portability Database

         17.3.1   Definition:

                  The Number Portability ("NP") Database supplies routing
                  numbers for calls involving numbers that have been ported from
                  one local service provider to another. NP database
                  functionality shall also include Global Title Translations
                  ("G77) for calls involving ported numbers even if U S WEST
                  provides GTT functionality in another Network Element U S WEST
                  shall provide the NP Database in accordance with industry
                  standards which shall supersede the following as needed.

         17.3.2   Requirements

              17.3.2.1     U S WEST shall make U S WEST NP Database available
                           for Pac-West switches to query to obtain the
                           appropriate routing number on calls to ported numbers
                           or the industry specified indication that the number
                           is not ported for non-ported numbers in NPA-NXXs;
                           that are opened to portability. The specified
                           indication will also be provided when the NPA-NXX is
                           not open to portability.

              17.3.2.2     Query responses shall provide such additional
                           information (e.g., Service Provider identification)
                           as may be specified in the NP implementation in the
                           relevant regulatory jurisdiction.

              17.3.2.3     U S WEST shall complete CLASS or LIDB queries routed
                           to the U S WEST network by Pac-West switches and
                           return the appropriate response to the querying
                           source.,

              17.3.2.4     The NP Database shall provide such other
                           functionality as has been specified in the regulatory
                           jurisdiction in which portability has been
                           implemented.

              17.3.2.5     Unavailability of the NP Database query and GTT
                           applications shall not exceed four (4) minutes per
                           year.

              17-3.2.6     The U S WEST NP Database shall respond to a round
                           trip query within 500 milliseconds or as amended by
                           industry standards.

         17.3.3 Interface Requirements

                  U S WEST shall interconnect the signaling interface between
                  the Pac-West or other local switch and the NP Database using
                  the TCAP protocol as specified in the technical references in
                  this Agreement, together with the signaling network interface
                  as specified in the technical references in this Agreement,
                  and such further requirements (e.g., AIN or IN protocols) as
                  may be specified by regulatory or other bodies responsible for
                  implementation of number portability.

17.4     Line Information Database (LIDB)

         This Section 17.4 defines and sets forth additional requirements for
         the Line Information Database.

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<PAGE>

17.4.1 Definition:

         The Line Information Database ("LIDB") is a transaction-oriented
         database accessible through Common Channel Signaling ("CCS") networks.
         It contains records associated with subscriber Line Numbers and Special
         Billing Numbers (in accordance with the requirements in the technical
         reference in Section 17.6.5). LIDB accepts queries from other Network
         Elements, or Pac-West's network, and provides appropriate responses.
         The query originator need not be the owner of LIDB data. LIDB queries
         include functions, such as screening billed numbers, that provide the
         ability to accept Collect or Third Number Billing calls and validation
         of Telephone Line Number based non-proprietary calling cards. The
         interface for the LIDB functionality is the interface between the U S
         WEST CCS network and other CCS networks. LIDB also interfaces to
         administrative systems. The administrative system interface provides
         work centers with an interface to LIDB for functions such as
         provisioning, auditing of data, access to LIDB measurements and
         reports.

17.4.2 Technical Requirements

       17.4.2.1   U S WEST shall enable Pac-West to store in U S WEST's LIDB any
                  fine number or special billing number. Pac-West will provide
                  U S WEST a non binding LIDB forecast Prior to the availability
                  of permanent NP, U S WEST shall enable Pac-West to store in
                  U S WEST's LIDB any subscriber Line Number or Special Billing
                  Number record for Pac-West resale, unbundled Network Elements
                  and facility based customers, in accordance with the technical
                  reference in Section 17.6.5, whether ported or not, for which
                  the NPA-NXX or NXX-O/IXX Group is supported by that LIDB.

       17.4.2.2   Prior to the availability of permanent NP, U S WEST shall
                  enable Pac-West to store in U S WEST's LIDB any subscriber
                  Line Number or Special Billing Number record for Pac-West
                  resale, unbundled Network Elements and facility based
                  customers, in accordance with the technical reference in
                  Section 17.6.5, whether ported or not, and NPA-NXX and
                  NXX-0/IXX Group Records, belonging to an NPA-NXX or NXX-0/1 XX
                  owned by Pac-West

       17.4.2.3   Subsequent to the availability of permanent NP, U S WEST shall
                  enable Pac-West to store in U S WEST's LIDB any subscriber
                  Line Number or Special Billing Number record for Pac-West
                  resale, unbundled Network Elements and facility based
                  customers, in accordance with the technical reference in
                  Section 17.6.5, whether ported or not, regardless of the
                  number's NPA-NXX or NXX-OAXX.

       17.4.2.4   U S WEST shall perform the following LIDB functions (i.e.,
                  processing of the following query types as defined in the
                  technical reference in Section 17.6.5) for Pac-West's
                  subscriber records in LIDB:

                  17.4.2.4.1 Billed Number Screening (provides information such
                             as whether the Billed Number may accept Collect or
                             Third Number Billing calls);

                  17.4.2.4.2 Calling Card Validation; and

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<PAGE>

                                    17.4.2.4.3 Originating Line Number Screening
                                               (OLNS), when available.

                       17.4.2.5     U S WEST shall process Pac-West's subscriber
                                    records in LIDB at least at parity with U S
                                    WEST subscriber records, with respect to
                                    other LIDB functions (as defined in the
                                    technical reference in Section 17.6). U S
                                    WEST shall indicate to Pac-West what
                                    additional functions, it any, are performed
                                    by LIDB in its network. Within ninety (90)
                                    days after the Effective Date of this
                                    Agreement, the Parties shall develop an
                                    interim procedure to process Pac-West
                                    subscriber records.

                       17.41.6      Within two (2) weeks after a request by
                                    Pac-West, U S WEST shall provide Pac-West
                                    with a list of the subscriber data items
                                    which Pac-West would have to provide in
                                    order to support each required LIDB
                                    function. The list t shall indicate which
                                    data items are essential to LIDB function,
                                    and which are required only to support
                                    certain services. For each data item, the
                                    list shall show the data formats, the
                                    acceptable values of the data item and the
                                    meaning of those values.

                       17.4.2.7     U S WEST shall provide LIDB performance in
                                    accordance with section 17.6.5.

                       17.4.2.8     U S WEST shall provide Pac-West with the
                                    capability to provision (e.g., to add,
                                    update, and delete) NPA-NXX and NXX-O/IXX
                                    Group Records, and Line Number and Special
                                    Billing Number Records, associated with
                                    Pac-West subscribers, directly into U S
                                    WEST's LIDB provisioning process. Within
                                    ninety (90) days after the Effective Date of
                                    this Agreement, the Parties shall establish
                                    an interim process to meet the requirements
                                    of this Section.

                       17.4.2.9     Unless directed otherwise by Pac-West in the
                                    event end user subscribers change their
                                    local service provider to Pac-West, U S WEST
                                    shall maintain subscriber data (for fine
                                    numbers, card numbers, and for any other
                                    types of data maintained in LIDB) so that
                                    such subscribers shall not experience any
                                    interruption of service due to the lack of
                                    such maintenance of subscriber data.

                       17.4.2.10    All additions, updates and deletions of
                                    Pac-West data to the LIDB shall be made
                                    solely at the direction of Pac-West

                       17.4-2.11    U S WEST shall provide priority updates to
                                    LIDB for Pac-West data upon Pac-West's
                                    request (e.g., to support fraud protection).

                       17.4.2.12    When available, U S WEST shall provide
                                    Pac-West the capability to directly obtain,
                                    through an electronic interface, reports of
                                    all Pac-West data in LIDB. Within ninety
                                    (90) days after the Effective Date of this
                                    Agreement, the Parties shall establish an
                                    interim process to meet the requirements of
                                    this Section.

                       17.4.2.13    (Intentionally left blank for numbering
                                    consistency)

                       17.4-2-14    U S WEST shall perform backup and recovery
                                    of all of Pac-West's data in LIDB as
                                    frequently as U S WEST performs backup and
                                    recovery for itself and any other Person,
                                    including sending to LIDB all changes made
                                    since

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<PAGE>

                  the date of the most recent backup copy. Backup will be
                  performed weekly. When needed, recovery will take place within
                  twenty-four (24) hours.

     17.4.2.15    U S WEST shall provide to Pac-West access to LIDB measurements
                  and reports at least at panty with the capability U S WEST has
                  for its own subscriber records and that U S WEST provides to
                  any other party. Such access shall be electronic. Within
                  ninety (90) days after the Effective Date of this Agreement,
                  the Parties shall establish an interim process to meet the
                  requirements of this Section.

     17.4.2.16    U S WEST shall provide Pac-West with LIDB reports of data
                  which are missing or contain errors, as well as any misroute
                  errors, within the same time period as U S WEST provides such
                  reports to itself. Within ninety (90) days after the Effective
                  Date of this Agreement, the Parties shall establish a process
                  to meet the requirements of this Section.

     17.4.2.17    U S WEST shall prevent any access to or use of Pac-West data
                  in LIDB by U S WEST personnel or by any other party not
                  authorized in writing by Pac-West

     17.4.2.18    If and when technically feasible, U S WEST shall provide
                  Pac-West performance of the LIDB Data Screening function,
                  which allows a LIDB to completely or partially deny specific
                  query originators access to LIDB data owned by specific data
                  owners (in accordance with the technical reference in Section
                  17.6.5) for subscriber data that is part of an NPA-NXX or NXX
                  O/IXX wholly or partially owned by Pac-West at least at parity
                  with U S WEST subscriber data. U S WEST shall obtain from
                  Pac-West the screening information associated with LIDB Data
                  Screening of Pac-West data in accordance with this requirement

                  17.4.2.18.1 The parties agree to investigate technical
                  feasibility of variable LIDB database screening to accomplish
                  17.4.2.18 above.

     17.4.2.19    U S WEST shall accept queries to LIDB associated with Pac-West
                  subscriber records, and shall return responses in accordance
                  with the requirements of this Section 17.

17.4.3 Interface Requirements

        U S WEST shall offer LIDB in accordance with the requirements of this
        Section 17.4.3.

        17.4.3.1     The interface to LIDB shall be in accordance with the
                     technical reference in Section 17.6.3.
        17.4.3.2     The CCS interface to LIDB shall be the standard interface
                     described in Section 17.6.3.
        17.4.3.3     The LIDB Database interpretation of the ANSI-TCAP messages
                     shall comply with the technical reference in Section
                     17.6.4. Global Title Translation shall be maintained in the
                     signaling network in order to support signaling network
                     routing to the LIDB.

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<PAGE>

17.5     Toll Free Number Database

         The Toll Free Number Database is an SCP that provides functionality
         necessary for toll free (e.g., 800 and 888) number services by
         providing routing information and additional vertical features during
         call set-up in response to guesses from SSPs. This Section 17.5
         supplements the requirements of Section 17.2 and 17.7. U S WEST shall
         provide the Toll Free Number Database in accordance with the following
         subsections:

         17.5.1 Technical Requirements

              17.5.1.1     U S WEST shall make the U S WEST Toll Free Number
                           Database available, through its STPs, for Pac-West to
                           query from Pac-West's designated switch including U S
                           WEST unbundled Local Switching.

              17.5.1.2     The Toll Free Number Database shall return carrier
                           identification and, where applicable, the queried
                           toll free number, translated numbers and instructions
                           as it would in response to a query from a U S WEST
                           switch.

         17.5.2   Interface Requirements

                  The signaling interface between the Pac-West or other local
                  switch and the TollFree Number Database shall use the TCAP
                  protocol as specified in the technical reference in Section
                  17.6. 1, together with the signaling network interface as
                  specified in the technical references in Sections 17.6.2 and
                  17.6.6.

          17.6    SCPs/Databases shall be at least equal to all of the
                  requirements for SCPs/Databases set forth in the following
                  technical references:

                   17.6.1  GR-246-CORE, Bell Communications Research
                           Specification of Signaling System Number 7, Issue 1
                           (Bellcore, December 199X);

                   17.6.2  GR-1432-CORE, CCS Network Interface Specification
                           (CCSNIS) Supporting Signaling Connection Control Part
                           (SCCP) and Transaction Capabilities Application Part
                           (TCAP) (Bellcore, March 1994);

                   17.6.3  GR-954-CORE, CCS Network Interface Specification
                           (CCSNIS) Supporting Line Information Database (LIDB)
                           Service 6, Issue 1, Rev. 1 (Bellcore, October 1995);

                   17.6.4  GR-1 149-CORE, OSSGR Section 10: System Interfaces,
                           Issue 1 (Bellcore, October 1995) (Replaces TR-NWT-001
                           149);

                   17.6.5  GR-1 158-CORE, OSSGR Section 22.3: Line Information
                           Database 6, Issue (Bellcore, October 1995); and

                   17.6.6  GR-1428-CORE, CCS Network Interface Specification
                           (CCSNIS) Supporting Toll Free Service (Bellcore, May
                           1995).

          17.7    Advanced Intelligent Network ("AIN") Access, Service Creation
                  Environment and Service Management System ("SCE/SMS") Advanced
                  Intelligent Network Access

                  17.7.1   U S WEST shall provide mediated access to all U S
                           WEST service applications, current or future (if
                           technically feasible), resident in U S WEST's SCP
                           through

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<PAGE>

         U S WEST's STPs. Such access may be from Pac-West s switch or U S
         WEST's unbundled local switch.

17.7.2   SCE/SMS AIN Access shall provide Pac-West the ability to create service
         applications in the U S WEST SCE and deploy those applications via the
         U S WEST SMS to the U S WEST SCP. This interconnection arrangement
         shall provide Pac-West access to the U S WEST development environment
         and administrative system in a manner at least at panty with U S WEST's
         ability to deliver its own AIN-based services. SCE AIN Access is the
         development of service applications within the U S WEST Service
         Creation Environment capability. SMS AIN Access is the provisioning of
         service applications via the U S WEST Service Management System
         capability. AIN trigger provisioning will be accomplished through the U
         S WEST local unbundled switching.

17.7.3   Services Available. U S WEST shall make SCE hardware, software, testing
         and technical support (e.g., technical contacts, system administrator)
         resources available to Pac-West Scheduling of SCE resources shall allow
         Pac-West at least equal priority to U S WEST.

17.7.4   Multi-user Access. The U S WEST SCE/SMS shall allow for multi-user
         access with proper source code management and other logical security
         functions.

17.7.5   Partitioning. When available, the U S WEST SCP shall partition and
         protect Pac-West service logic and data from unauthorized SMS
         capability and SCE capability access, execution or other types of
         compromise.

17.7.6   Training and Documentation. U S WEST shall provide training and
         documentation for Pac-West development staff only in cases in which
         such training or documentation is not reasonably available from another
         source. If training or documentation is required in accordance with
         this Section, it will be provided in a manner at least at panty with
         that provided by U S WEST to its development staff. Training will be
         conducted at a mutually agreed upon location.

17.7.7   Access Environment. When Pac-West selects SCE/SMS AIN Access, U S WEST
         shall provide for a secure, controlled access environment on-site. When
         available Pac-West may request mutually agreed upon remote data
         connections (e.g., dial up, LAN, WAN).

17.7.8   Data Exchange. When Pac-West selects SMS AIN Access, U S WEST shall
         allow Pac-West to download data forms and/or tables to the U S WEST
         SCP, via the U S WEST SMS capability, in the same fashion as U S WEST
         downloads such forms and/or tables for itself.

17.7.9   Certification Testing. Certification testing is typically a two step
         process that includes an off-line unit test followed by an on-line
         controlled introduction testing into one of each of the U S WEST switch
         types capable of supporting the service. Services created by Pac-West
         will require certification testing by U S WEST before the services can
         be provisioned in the network. The scheduling of U S WEST certification
         testing resources for new Pac-West services will be jointly coordinated
         and prioritized between U S WEST and Pac-West. Pac-West testing
         requirements will be given equal priority with both U S WEST and other
         providers' requirements. In most circumstances, such testing will be
         completed within sixty (60) days from

                                       44
<PAGE>

                           the date the application is submitted by Pac-West to
                           U S WEST for certification. In circumstances
                           involving complex applications requiring additional
                           time for testing, U S WEST may request additional
                           time and Pac-West will not unreasonably withhold
                           approval of such request. The certification testing
                           procedures described in this Section may be augmented
                           as mutually agreed to by the Parties.

                  17.7.10  Access Standard. SCPs/Databases shall offer SCE/SMS
                           AIN Access in accordance with the requirements of
                           GR-1280-CORE, AIN Service Control Point (SCP) Generic
                           Requirements.

         17.8    (Intentionally left blank for numbering consistency)

         17.9     Pac-West will provide to U S WEST timely non-binding forecasts
                  of SS7 call transactions, link requirements, database query
                  volumes, etc., as needed for sizing the individual network
                  capabilities that Pac-West will utilize under the terms of
                  this Agreement.

          17.10   CCS Service includes:

                  17.10.1    Entrance Facility - The entrance facility connects
                             Pac-West's signaling point of interface with the U
                             S WEST Serving Wire Center ("SWC").

                  17.10.2    Direct Link Transport ( "DLT") - The DLT connects
                             the Pac-West SWC to the U S WEST STP.

                  17.10.3    STP Port - The STP port provides the switching
                             function at the STP. One (1) STP port is required
                             for each DLT link. The port provides access to the
                             SCP.

          17.11   Advanced Intelligent Network ("AIN") triggers will be provided
                  only to access U S WEST databases. Access to AIN functions is
                  available only through the STP. If Pac-West requires other
                  access, it will submit a Bona Fide Request

18.      Additional Requirements

         This Section 18 of Attachment 3 sets forth the additional requirements
         for unbundled Network Elements which U S WEST agrees to offer to
         Pac-West under this Agreement

         18.1     Cooperative Testing

                  18.1.1   Definition:

                           Cooperative Testing means that U S WEST shall
                           cooperate with Pac-West upon request or as needed to
                           (a) ensure that the Network Elements and Ancillary
                           Functions and additional requirements being provided
                           to Pac-West by U S WEST are in compliance with the
                           requirements of this Agreement, (b) test the overall
                           functionality of various Network Elements and
                           Ancillary Functions provided by U S WEST to Pac-West
                           in combination with each other or in combination with
                           other equipment and facilities provided by Pac-West
                           or third parties, and (c) ensure that all operational
                           interfaces and processes are in place and functioning
                           property and efficiently for the provisioning and
                           maintenance of Network Elements and Ancillary
                           Functions and so that all appropriate billing data
                           can be provided to Pac-West.

                  18.1.2   Requirements

                                       45
<PAGE>

                   Within forty-five (45) days of the Effective Date of this
                   Agreement, Pac-West and U S WEST will agree upon a process
                   to resolve technical issues relating to interconnection or
                   Pac-West's network to U S WEST's network and Network Elements
                   and Ancillary Functions. The agreed upon process shall
                   include procedures for escalating disputes and unresolved
                   issues up through higher levels of each Party's management If
                   Pac-West and U S WEST do not reach agreement on such a
                   process within the 45-day time period, any issues that have
                   not been resolved by the Parties with respect to such process
                   shall be submitted to the dispute resolution procedures set
                   forth in Part A of this Agreement unless both Parties agree
                   to extend the time to reach agreement on such issues.

              18.1.2.1      U S WEST shall provide Pac-West access for testing
                            at any interface between a U S WEST Network Element
                            or Combinations and Pac-West equipment or
                            facilities. Such test access shall be sufficient to
                            ensure that the applicable requirements can be
                            tested by Pac-West. This access shall be available
                            seven (7) days per week, twenty-four (24) hours per
                            day.

              18.1.2.2      Pac-West May test any interfaces, Network Elements
                            or Ancillary Functions and additional requirements
                            provided by U S WEST to Pac-West pursuant to this
                            Agreement.

              18.1.2.3      U S WEST shall provide engineering data as requested
                            by Pac-West for the loop components as set forth in
                            this Attachment 3 which Pac-West may desire to test.
                            Such data shall include equipment engineering and
                            cable specifications, signaling and transmission
                            path data.

              18.1.2.4      The Parties shall establish a process to provide
                            engineering/office support information on unbundled
                            Network Elements (e.g., central office layout and
                            design records and drawings, system engineering and
                            other applicable documentation) pertaining to a
                            Network Element or Ancillary Function or the
                            underlying equipment that is then providing a
                            Network Element or Ancillary Function to Pac-West

              18.1.2.5      Upon request from Pac-West, U S WEST shall provide
                            to Pac-West all applicable test results from U S
                            WEST testing activities on a Network Element or
                            Ancillary Function or additional requirement or the
                            underlying equipment providing a Network Element or
                            Ancillary Function or additional requirements.
                            Pac-West may review such test results and may notify
                            U S WEST of any detected deficiencies.

              18.1.2.6      U S WEST shall temporarily provision Pac-West
                            designated Local Switching features for testing.
                            Within sixty (60) days of the Effective Date of this
                            Agreement, Pac-West and U S WEST shall mutually
                            agree on the procedures to be established between U
                            S WEST and Pac-West to expedite such provisioning
                            processes for feature testing.

              18.1.2.7      Upon Pac-West's request, U S WEST shall make
                            available technical support to meet with Pac-West
                            representatives to provide required support for
                            Cooperative Testing. U S WEST shall define the
                            process to gain access to such technical support.

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<PAGE>

              18.1.2.8      Dedicated Transport and Loop Feeder may experience
                            alarm conditions due to in-progress tests. U S WEST
                            shall notify Pac-West upon removal of such
                            facilities from service.

              18.1.2.9      U S WEST shall exercise its best efforts to notify
                            Pac-1/Vest prior to conducting tests or maintenance
                            procedures on Network Elements or Ancillary
                            Functions or on the underlying equipment that is
                            then providing a Network Element or Ancillary
                            Function, that will likely cause a service
                            interruption or degradation of service.

              18.1.2.10     U S WEST shall provide a single point of contact to
                            Pac-West that is available seven (7) days per week,
                            twenty-four (24) hours per day for trouble status,
                            sectionalization, resolution, escalation, and
                            closure. Such staff shall be adequately skilled to
                            allow expeditious problem resolution.(10)

                            18.1.2.11    U S WEST shall make available to
                                         Pac-West access to 105 responders
                                         100-type test lines, or 102-type test
                                         lines associated with any circuits
                                         under test.

                            18.1.2.12    Pac-West and U S WEST shall complete
                                         Cooperative Testing in accordance with
                                         the procedures set forth in Attachment
                                         5.

                            18.1.2.13    U S WEST shall participate in
                                         Cooperative Testing requested by
                                         whenever it is deemed necessary by
                                         Pac-West to insure services
                                         performance, reliability and subscriber
                                         serviceability.

                            18.1.2.14    Pac-West may accept or reject the
                                         Network Element ordered by if, upon
                                         completion of cooperative acceptance
                                         testing, the tested Element does not
                                         meet the requirements stated herein.

     18.2     Performance

              18-2.1 Scope(11)

                              The performance of all Network Elements and
                              Ancillary functions Pac-West orders from U S WEST
                              to provide local service will be at least equal to
                              that it provides to itself, to any subsidiary,
                              affiliate, or any party for which it provides a
                              like service.

     18.3     Protection, Restoration, and Disaster Recovery

              18.3.1 Scope:

              This Section refers specifically to requirements on the use of
              redundant network equipment and facilities for protection,
              restoration, and disaster recovery.

     18.4     Synchronization

----------

10   Per Order at page 26, Issue 47.
11   Per Recommendations at page 26, Issue 144. Modified per Approval at page
     13. paragraph F.

                                       47
<PAGE>

18.4.1   Definition:

         Synchronization is the function which keeps ail digital equipment in a
         communications network operating at the same average frequency. With
         respect to digital transmission, information is coded into discrete
         pulses, When these pulses are transmitted through a digital
         communications network, all synchronous Network Elements are traceable
         to a stable and accurate timing source. Network synchronization is
         accomplished by timing all synchronous Network Elements in the network
         to a stratum 1 traceable source so that transmission from these network
         points have the same average line rate.

18.4.2 Technical Requirements

         The following requirements are applicable to the case where U S WEST
         provides synchronization to equipment that Pac-West owns and operates
         within a U S WEST location. In addition, these requirements apply to
         synchronous equipment that is owned by U S WEST and is used to provide
         a Network Element to Pac-West.

     18.4.2.1     The synchronization of clocks within digital networks is
                  divided into two parts: intra-building and inter-building.
                  Within a building, a single clock is designated as the
                  Building Integrated Timing Supply ("SITS"), which provides all
                  of the DS-1 and DS-0 synchronization references required by
                  other clocks in such building. This is referred to as
                  intra-building synchronization. The BITS receives
                  synchronization references from remotely located BITS such as
                  a primary reference source. Synchronization of BITS between
                  buildings is referred to as inter-building synchronization.

     18.4.2.2     To implement a network synchronization plan, clocks within
                  digital networks are divided into four stratum levels. All
                  clocks in strata 2, 3, and 4 are synchronized to a stratum 1
                  clock, that is, they are traceable to a stratum clock. A
                  traceable reference is a reference that can be traced back
                  through some number of clocks to a stratum 1 source. Clocks in
                  different strata are distinguished by their free running
                  accuracy or by their stability during trouble conditions such
                  as the loss of all synchronization references.

       18.4.2.2.1 Intra-Building

                  Within a building, there may be different kinds of equipment
                  that require synchronization at the DS-1 and DS-0 rates.
                  Synchronization at the DS-1 rate is accomplished by the
                  frequency synchronizing presence of buffer stores at various
                  DS-1 transmission interfaces. Synchronization at the DS0 rate
                  is accomplished by using a composite clock signal that phase
                  synchronizes the clocks. Equipment requiring DS-0
                  synchronization frequently does not have adequate buffer
                  storage to accommodate the phase variations among different
                  equipment. Control of phase variations to an acceptable level
                  is accomplished by externally timing all interconnecting DS-0
                  circuits to a single clock source and by limiting the
                  interconnection of DS-0 equipment to less than 1,500 cable
                  feet Therefore, a SITS shall provide DS-1 and composite clock
                  signals when the appropriate composite signal is a 64-kHz 5/8'
                  duty cycle, return to zero with a bipolar violation every
                  eighth pulse (B8RZ).

                                       48
<PAGE>

                  18.4.2.2.2 Inter-Building

                             U S WEST shall provide inter-building
                             synchronization at the DS-1 rate. and the BITS
                             shall accept the primary and/or secondary
                             synchronization links from BITS in other buildings
                             where necessary. From hierarchical considerations,
                             the BITS shall be the highest stratum clock within
                             the building and U S WEST shall provide operations
                             capabilities. When available such capability
                             includes, but is not limited to: synchronization
                             reference provisioning; synchronization reference
                             status inquiries: timing mode status inquiries; and
                             alarm conditions.

18.4.3 Synchronization Distribution Requirements

     18.4.3.1     Central office BITS shall contain redundant clocks meeting or
                  exceeding the requirements for a stratum 3 clock as specified
                  in ANSI T1. 101-1994 and ANSI TL 105.09 and Bellcore
                  GR-NWT-001 244 Clocks for the Synchronized Network: Common
                  Genetic Criteria.

     18.4.3.2     Central office BITS shall be powered by primary and backup
                  power sources.

     18.4.3.3     If both reference inputs to the BITS are interrupted or in a
                  degraded mode (meaning off frequency greater than twice the
                  minimum accuracy of the BITS, loss of frame, excessive bit
                  errors, or in Alarm Indication Signal), then the stratum clock
                  in the BITS shall provide the necessary bridge in timing to
                  allow the network to operate without a frame repetition or
                  deletion (slip free) with better performance than specified in
                  these technical references specified in 18.4.3.1.

     18.4.3.4     DS-1 s multiplexed into a SON ET synchronous payload envelope
                  within an STS-n (where "n" is defined in ANSI T1. 105-1995)
                  signal shall not be used as reference facilities for network
                  synchronization.

     18.4.3.5     The total number of Network Elements cascaded from the stratum
                  1 source shall be minimized.

     18.4.3.6     A Network Element shall receive the synchronization reference
                  signal only from another Network Element that contains a clock
                  of equivalent or superior quality (stratum level).

     18.4.3.7     U S WEST shall select for synchronization those facilities
                  shown to have the greatest degree of availability (absence of
                  outages).

     18.4.3.8     Where possible, ail primary and secondary synchronization
                  facilities shall be physically diverse (this means the maximum
                  feasible physical separation of synchronization equipment and
                  cabling).

     18.4.3.9     No timing loops shall be formed in any combination of primary
                  and secondary facilities.

     18.4.3.10    U S WEST shall continuously monitor the BITS for
                  synchronization related failures.

                                       49
<PAGE>

              18.4.3.11    U S WEST shall continuously monitor ail equipment
                           transporting synchronization facilities for
                           synchronization related failures.

              18.4.3.12    For non-SONET equipment U S WEST shall provide
                           synchronization facilities which, at a minimum,
                           comply with the standards set forth in ANSI
                           T1.101-1994.

              18.4.3.13    For SONET equipment, U S WEST shall provide
                           synchronization facilities that have time deviation
                           (TDEV) for integration times greater than 0.05
                           seconds and less than or equal to ten (10) seconds,
                           that is less than or equal to 100 nanoseconds. TDEV,
                           in nanoseconds, for integration times greater than
                           ten (10) seconds and less than 1000 seconds, shall be
                           less than 31.623 times the square-root of the
                           integration time.

18.5     SS7 Network Interconnection

         18.5.1 Definition:

                SS7 Network Interconnection is the interconnection of Pac-West
                local Signaling Transfer Point (STPs) with U S WEST STPs. This
                interconnection provides connectivity that enables the exchange
                of SS7 messages among U S WEST switching systems and databases,
                Pac-West local or tandem switching systems. and other
                third-party switching systems directly connected to the U S WEST
                SS7 network.

         18.5.2 Technical Requirements

                18.5.2.1   SS7 Network Interconnection shall provide signaling
                           connectivity to ail components of the U S WEST SS7
                           network through U S WEST STPs. These include:

                           18.5.2.1.1 US WEST local or tandem switching systems;

                           18.5.2.1.2 U S WEST databases; and

                           18.5.2.1.3 other third-party local or tandem
                                      switching systems.

                18.5.2.2   The connectivity provided by SS7 Network
                           Interconnection shall support the functions of U S
                           WEST switching systems and databases and Pac-West or
                           other third-party switching systems with A-link
                           access to the U S WEST SS7 network.

                18.5.2.3   SS7 Network Interconnection shall provide transport
                           for certain types of Transaction Capabilities
                           Application Part ("TCAP') messages. If traffic is
                           routed based on dialed or translated digits between
                           an Pac-West local switching system and a U S WEST or
                           other third-party local switching system, either
                           directly or via a U S WEST tandem switching system,
                           then it is a requirement that the U S WEST SS7
                           network convey via SS7 Network Interconnection the
                           TCAP messages necessary to provide Call Management
                           services (Automatic Callback, Automatic Recall, and
                           Screening List Editing) between the Pac-West local
                           STPs and the U S WEST or other third-party STPs.

                                       50
<PAGE>

              18.5.2.4      When the capability to route messages based on
                            Intermediate Signaling Network Identifier ("ISNI")
                            is generally available on U S WEST STPs. the U S
                            WEST SS7 Network shall also convey TCAP messages
                            using SS7 Network Interconnection in similar
                            circumstances where the U S WEST switch routes
                            traffic based on a Carrier Identification Code
                            ("CIC").

              18.5.2. 5     SS7 Network Interconnection shall provide all
                            functions of the MTP as specified in ANSI T1. 111.
                            This includes: 18.5.2.5.1 Signaling Data Link
                            functions, as specified in ANSI T1.111.2; 18.5.2.5.2
                            Signaling Link functions, as specified in ANSI
                            T1.111.3; and 18.5.2.5.3 Signaling Network
                            Management functions, as specified in ANSI T1.
                            111.4.

              18.5.2.6      SS7 Network Interconnection shall provide all
                            functions of the SCCP necessary for Class 0 (basic
                            connectionless) service, as specified in ANSI T1.
                            112.

              18.5.2.7      Where the destination signaling point is a U S WEST
                            switching system or database, or is another
                            third-party local or tandem switching system
                            directly connected to the U S WEST STPs (SS7
                            network), SS7 Network Interconnection shall include
                            final GTT of messages to the destination and SCCP
                            Subsystem Management of the destination.

              18.5.2.8      Where the destination signaling point is an Pac-West
                            local or tandem switching system, SS7 Network
                            Interconnection shall include intermediate GTT of
                            messages to a gateway pair of Pac-West local STPs,
                            and shall not include SCCP Subsystem Management of
                            the destination.

              18.5.2.9      SS7 Network Interconnection shall provide all
                            functions of the Integrated Services Digital Network
                            User Part (ISDNUP), as specified in ANSI T1. 113.

              18.5.2.10     SS7 Network Interconnection shall provide all
                            functions of the TCAP, as specified in ANSI T1. 114.

              18.5.2.11     If and when inter-network MTP Routing Verification
                            Test (MRVT) and SCCP Routing Verification Test
                            (SRVT) become approved ANSI standards and available
                            capabilities of both U S WEST and Pac-West STPs, SS7
                            Network Interconnection shall provide these
                            functions of the OMAP.

                            18.5.2.11.1 The Parties shall develop a mutually
                            agreed upon interim process for MRVT and SRVT within
                            ninety (90) days of the Effective Date of this
                            Agreement. Either Party shall be allowed to shut off
                            MRVT/SRVT for preservation of network integrity.

              18.5.2.12     SS7 Network Interconnection shall be equal to or
                            better than the following performance requirements:

                                       51
<PAGE>

                  18.5.2.12,1       MTP Performance, as specified in ANSI T1.
                                    111.61

                  18.5.2.12.2       SCCP Performance, as specified in ANSI T1.11
                                    12.5, and

                  18.5.2.12.3       ISDNUP Performance, as specified in ANSI T1.
                                    113.95.

18.5.3 Interface Requirements

     18.5.3.1     U S WEST shall offer the following SS7 Network Interconnection
                  options to connect Pac-West or Pac-West-designated STPs to the
                  U S WEST STPs (SS7 network):

                  18.5.3.1.1        D-link interface from Pac-West STPs.

     18.5.3.2     Each interface shall be provided by one or more sets (layers)
                  of signaling links as follows:

                  18.5.3.2.1        A D-link layer shall consist of four links.

     18.5.3.3     The Signaling Point of Interconnection ("SPOI") for each link
                  shall be located at a cross-connect element (e.g., DSX-1) in
                  the central office where the U S WEST STPs are located. There
                  shall be a DS-1 or higher rate transport interface at each of
                  the SPOIs. Each signaling link shall appear as a DS-0 channel
                  within the DS-1 or higher rate interface. U S WEST shall offer
                  higher rate DS-1 signaling links for interconnecting Pac-West
                  local switching systems or STPs with U S WEST STPs as soon as
                  these become approved ANSI standards and available
                  capabilities of U S WEST STPs.

                  18.5.3.3.1 In each LATA, there will be two (2) SPOIs. The
                             requirement for two SPOIs is driven by the critical
                             importance attached by the Parties to signaling
                             link diversity.

                  18.5.3.3.2 Each Party will designate one (1) of the two (2)
                             SPOIs in a reasonable and efficient location in the
                             LATA. A SPOI can be any existing cross connect
                             point in the LATA.

                  18.5.3.3.3 Each signaling link requires a port on each Party's
                             STP.

     18.5.3.4     Where available, the U S WEST central office shall provide
                  intraoffice diversity between the SPOIs and the U S WEST STPs,
                  so that no single failure of intraoffice facilities or
                  equipment shall cause the failure of both D-links in a layer
                  connecting to U S WEST's STPs.

     18.5.3.5     The protocol interface requirements for SS7 Network
                  Interconnection include the MTP, ISDNUP, SCCP and TCAP. These
                  protocol interfaces shall conform to the following
                  specifications:

                  18.5.3.5.1 Bellcore GR-905-CORE, Common Channel Signaling
                             Network Interface Specification (CCSNIS) Supporting
                             Network Interconnection, Message Transfer Part
                             (MTP), and Integrated Services Digital Network User
                             Part (ISDNUP);

                                       52
<PAGE>

                                    18.5.3.5.2 Bellcore GR-1428-CORE, CCS
                                    Network Interface Specification (CCSNIS)
                                    Supporting Toll Free Service:

                                    18.5.3.5.3 Bellcore GR-1429-CORE, CCS
                                    Network Interface Specification (CCSNIS)
                                    Supporting Call Management Services: and

                                    18.5.3.5.4 Bellcore GIR-1432-CORE, CCS
                                    Network Interface Specification (CCSNIS)
                                    Supporting Signaling Connection Control Part
                                    (SCCP) and Transaction Capabilities
                                    Application Part (TCAP).

                       18.5.3.6     To the extent technically feasible, U S WEST
                                    shall set message screening parameters to
                                    block accept messages from Pac-West local or
                                    tandem switching systems destined to any
                                    signaling point in the U S WEST SS7 network
                                    with which the Pac-West switching system has
                                    a legitimate signaling relation.

                  18.5.4   SS7 Network Interconnection shall be equal to or
                           better than all of the requirements for SS7 Network
                           Interconnection set forth in the following technical
                           references:

                       18.5.4.1     ANSI T1. 110-1992 American National Standard
                                    Telecommunications Signaling System Number 7
                                    (SS7) - General Information;

                       18.5.4.2     ANSI T1. 111-1992 American National Standard
                                    for Telecommunications - Signaling System
                                    Number 7 (SS7) - Message Transfer Part
                                    (MTP);

                       18.5.4.3     ANSI T1.1 1 1A-1994 American National
                                    Standard for Telecommunications - Signaling
                                    System Number 7 (SS7) - Message Transfer
                                    Part (MTP) Supplement;

                       18.5.4.4     ANSI T1. 112-1992 American National Standard
                                    for Telecommunications - Signaling System
                                    Number 7 (SS7) - Signaling Connection
                                    Control Part (SCCP);

                       18.5.4.5     ANSI T1. 113-1995 American National Standard
                                    for Telecommunications - Signaling System
                                    Number 7 (SS7) - Integrated Services Digital
                                    Network (ISDN) User Part;

                       18.5.4.6     ANSI T1. 114-1992 American National Standard
                                    for Telecommunications - Signaling System
                                    Number 7 (SS7) - Transaction Capabilities
                                    Application Part (TCAP);

                       18.5.4.7     ANSI T1. 115-1990 American National Standard
                                    for Telecommunications - Signaling System
                                    Number 7 (SS7) - Monitoring and Measurements
                                    for Networks;

                       18.5.4.8     ANSI T1. 1 16-1990 American National
                                    Standard for Telecommunications - Signaling
                                    System Number 7 (SS7) - Operations,
                                    Maintenance and Administration Part (OMAP);

                       18.5.4.9     ANSI T1. 118-1992 American National Standard
                                    for Telecommunications - Signaling System
                                    Number 7 (SS7) - Intermediate Signaling
                                    Network Identification (ISNI);

                                       53
<PAGE>

                       18.5.4.10    Bellcore GR-905-CORE, Common Channel
                                    Signaling Network interface Specification
                                    (CCSNIS) Supporting Network Interconnection,
                                    Message Transfer Part (MTP), and Integrated
                                    Services Digital Network User Part (ISDNUP);

                       18.5.4.11    Bellcore GR-954-CORE, CCS Net-work Interface
                                    Specification (CCSNIS) Supporting Line
                                    Information Database (LIDB) Service-,

                       18.5.4.12    Bellcore GR-1428-CORE, CCS Network Interface
                                    Specification ("CCSNIS") Supporting Toll
                                    Free Service:

                       18.5.4.13    Bellcore GR-1429-CCRE, CCS Network Interface
                                    Specification (CCSNIS) Supporting Call
                                    Management Services; and

                       18.5.4.14    Bellcore GR-1432-CORE, CCS Network Interface
                                    Specification (CCSNIS) Supporting Signaling
                                    Connection Control Part (SCCP) and
                                    Transaction Capabilities Application Part
                                    (TCAP).

                                       54
<PAGE>

                                                                  Attachment 4

                               TABLE OF CONTENTS

1. Definitions..............................................................1

2. General Description .....................................................1

3. Location of Interconnection .............................................1

4. Collocation..............................................................2

5. Entrance Facility .......................................................2

6. Quality of Interconnection...............................................2

7. Points of Interconnection................................................2

8. Trunking Requirements ...................................................2

9. Service Interruptions ...................................................4

10. Forecasting ............................................................5

11. Signaling ..............................................................7

12. Ordering ...............................................................7

13. Network Management .....................................................7

14. Usage Measurement ......................................................8

15. Audiotext and Mass Announcement Services ...............................8
<PAGE>

16. Interconnection to Network Elements ....................................8

17. Reciprocal Traffic Exchange ...........................................11
<PAGE>

                                INTERCONNECTION

1.       Definitions

         1.1      For purposes of this Attachment 4, "Interconnection" is the
                  linking of the U S WEST and Pac-West networks for the mutual
                  exchange of traffic. Interconnection does not include the
                  transport and termination of traffic. Interconnection is
                  provided by virtual or physical collocation, entrance
                  facilities or meet point arrangements.

2.       General Description

         2.1      U S WEST will provide Interconnection at any technically
                  feasible point. subject to negotiations between the Parties;
                  such points may include, but not be limited to, a Meet Point,
                  the line side distribution frame of the local switch, the
                  trunk side distribution frame of the local switch, trunk
                  interconnection points of the tandem switch, central office
                  cross Connect points, and Signaling Transfer Points necessary
                  to exchange traffic and access call related databases.

         2.2      Pac-West shall designate at least one POI in the LATA in which
                  Pac-West originates local traffic and interconnects with U S
                  WEST.' Pac-West will be responsible for engineering and
                  maintaining its network on its side of the POI. If and when
                  the Parties choose to interconnect at a mid-span meet,
                  Pac-West and U S WEST will jointly provision the fiber optic
                  facilities that connect the two (2) networks and shall share
                  the financial and other responsibilities for that facility.

         2.3      Within ten (10) Business Days of Pac-Wests request for any
                  POI, U S WEST shall provide any information in its possession
                  or available to it regarding the environmental conditions of
                  the interconnection route or location including, but not
                  limited to, the existence and condition of asbestos, lead
                  paint, hazardous substance contamination, or radon.
                  Information is considered "available" under this Agreement if
                  it is in U S WEST's possession, or in the possession of a
                  current or former agent, contractor, employee, lessor, or
                  tenant of U S WEST's.

         2.4      U S WEST shall allow Pac-West to perform any environmental
                  site investigations, including, but not limited to, asbestos
                  surveys, Pac-West deems to be necessary in support of its
                  collocation needs. Pac-West shall advise U S WEST in writing
                  of its intent to conduct any such investigations, and shall
                  receive written approval from U S WEST to proceed with the
                  investigation, which approval shall not be unreasonably
                  withheld. Pac-West shall indemnify U S WEST in accordance with
                  the provisions of Section 18 of Part A of this Agreement for
                  any loss or claim for damage suffered by U S WEST as a result
                  of Pac-Wests actions during any site inspection.

3.       Location of Interconnection

         3.1      Pac-West will be responsible for implementing and maintaining
                  its network on its side of the POI. U S WEST will be
                  responsible for implementing and maintaining its network on
                  its side of the POI. If and when the Parties choose to
                  interconnect at a Meet Point, Pac-West and U S WEST will
                  jointly provision the fiber optic facilities that connect the
                  two networks and shall proportionately share the financial and
                  other responsibilities for that facility based on
                  the reasonably negotiated Meet Point percentage.

                                     Page 1
<PAGE>

         3.2      If Interconnection is complicated by the presence of
                  environmental contamination or hazardous materials, and an
                  alternative route is available. U S WEST shall make such
                  alternative route available for Pac-West's consideration.

4.       Collocation

         4.1      Interconnection may be accomplished through either virtual or
                  physical collocation. The terms and conditions under which
                  collocation will be available are described in Part A of this
                  Agreement.

5.       Entrance Facility

         5.1      Interconnection may be accomplished using an entrance facility
                  without the need for collocation. An entrance facility extends
                  from the Point of Interface to a point within a U S WEST
                  central office.

6.       Quality of Interconnection

         6.1      U S WEST will not, for the purpose of Interconnection, provide
                  to Pac-West less favorable terms and conditions than it
                  provides itself or any other Person or in a manner less
                  efficient than it would impose on itself or any other Person.
                  The quality of Interconnection will be at least equal to that
                  U S WEST provides to itself or any other Person. To the extent
                  that Pac-West requests higher or lower quality
                  Interconnection, Pac-West agrees to use the BFR process
                  described in Part A of this Agreement.

7.       Points of Interconnection

         7.1      Upon a request for specific point to point routing, U S WEST
                  will make available to Pac-West information indicating the
                  location and technical characteristics of U S WESTs network
                  facilities. The following alternatives are negotiable and
                  include, but are not limited to: (a) a DS-1 or DS-3 entrance
                  facility, where facilities are available (where facilities are
                  not available and U S WEST is required to build special or
                  additional facilities, special construction charges may
                  apply); (b) virtual collocation; (c) physical collocation; and
                  (d) negotiated Meet Point facilities. Each Party is
                  responsible for providing its own facilities up to the Meet
                  Point. The Parties will negotiate the facilities arrangement
                  between their networks.

8.       Trunking Requirements

         8.1      U S WEST agrees to provide designed interconnection facilities
                  that meet the same industry Standards for technical criteria
                  and service standards, such as the probability of blocking in
                  peak hours and transmission standards.

         8.2(2)   The Parties shall initially reciprocally terminate local
                  exchange traffic and intraLATA/interLATA toll calls
                  originating on each other's networks as follows:

                  8.2.1    There shall be no restrictions on traffic types
                           carried. Until the access structure is revised, to
                           accommodate non-segregated traffic, pursuant to rules
                           promulgated by the FCC or the Commission, two

----------

2 per Order at page 5, Issue 4.

                                     Page 2
<PAGE>

                  way trunk groups will be established wherever practical, based
                  upon Pac-West's request if Local Traffic and Toll Traffic are
                  combined in one (1) trunk group, Pac-West shall provide a
                  measure of the amount of local and toll traffic relevant for
                  billing purposes to U S WEST. U S WEST may audit the traffic
                  reported to it by Pac-West if it has reason to believe the
                  reported measurement is not accurate. Such audit shall be
                  conducted in accordance with the Audit Section of this
                  Agreement Exceptions to this provision will not be based on
                  technical infeasibility, but will be based on billing,
                  signaling, and network requirements. For example, exceptions
                  include: (a) billing requirements - switched access vs. local
                  traffic, (b) signaling requirements - MF vs. SS7, (c) network
                  requirements - Directory Assistance traffic to TOPS tandems,
                  and (d) one-way trunks for 911/E911. The following is the
                  current list of traffic types that require separate trunk
                  groups, unless otherwise specifically stated in this
                  Agreement:

                  (a)      IntraLATA toll and interLATA switched access trunks
                  (b)      EAS/local trunks
                  (c)      Directory Assistance trunks
                  (d)      911/E911 trunks
                  (e)      Operator Services trunks
                  (f)      Non-U S WEST toll (transit toll to other providers)
                  (g)      Non-U S WEST local (transit local to other providers)
                  (h)      Commercial Mobile Radio Service/Wireless traffic

8.3      Separate trunk groups will be established connecting Pac-West's switch
         or Pac-West's Operator Service center to U S WEST's Operator Service
         center for operator-assisted busy line interrupt/verify. For traffic
         from the U S WEST network to Pac-West for Operator Services, U S WEST
         will provide one (1) trunk group per LATA served by the local U S WEST
         switch.(3)

8.4      Trunk Servicing

         8.4.1    Orders between the Parties to establish, add, change or
                  disconnect trunks shall be processed by use of an Access
                  Service Request ("ASR") or another industry standard for local
                  service ordering.

         8.4.2    As further described in this Agreement, both Parties will
                  jointly manage the capacity of Local Interconnection trunk
                  groups. U S WESTs trunk servicing group will send a Trunk
                  Group Service Request ("TGSR"), or another industry standard
                  eventually adopted to replace the TGSR, to Pac-West to trigger
                  changes U S WEST desires to the Local Interconnection trunk
                  groups based on U S WESTs capacity assessment Pac-West will
                  issue an ASR or other industry ordering standard to U S WEST:

                  (a)      within ten (10) Business Days after receipt of the
                           TGSR, upon review of and in response to U S WEST's
                           TGSR, or

----------

(3)   Per Order at page 5, Issue 4.

                                     Page 3
<PAGE>

                           (b)      at any time. as a result of Pac-West s own
                                    capacity management assessment, to begin the
                                    provisioning process. The interval used for
                                    the provisioning of Local Interconnection
                                    trunk groups shall be no longer than the
                                    standard interval for the provisioning of U
                                    S WEST's Switched Access service and shall
                                    be consistent with U S WEST's actual
                                    provisioning intervals for its own Switched
                                    Access customers.

                  8.4.3    U S WEST will attempt to meet Pac-West requested due
                           date for the provision of Local Interconnection trunk
                           groups. Where the installation of Local
                           Interconnection trunk groups is required within a
                           time that is shorter than the standard interval, the
                           Parties will make all reasonable efforts and
                           cooperate in good faith to ensure that the mutually
                           agreed upon due date is met.

                  8.4.4    Orders that comprise a major project may be submitted
                           at the same time, in which case their implementation
                           shall be jointly planned and coordinated. Major
                           projects are those that require the coordination and
                           execution of multiple orders or related activities
                           between and among U S WEST and Pac-West work groups,
                           including, but not limited to, the initial
                           establishment of Local Interconnection or Meet Point
                           trunk groups and service in an area, NXX code moves,
                           re-homes, facility grooming, or network
                           rearrangements.

          8.5     Trunking Requirements

                  3.5.1    Trunk group connections will be made at a DS-1 or
                           multiple DS-1 level for exchange of EAS/local,
                           intraLATA toll, wireless/Commercial Mobile Radio
                           Service, and Switched Access Traffic. Ancillary
                           Service trunk groups will be made below a DS-1 level,
                           as agreed to by the Parties.

                  8.5.2    Where Common Channel Signaling ("CCS") is not
                           available, in-band multifrequency ("MF") wink start
                           signaling will be provided. This MIF arrangement will
                           require a separate local trunk circuit between
                           Pac-Wests switch and U S WESTs tandems. Reference
                           Technical Pub. TR314 and TR394.

9.       Service Interruptions

         9.1      Standards and procedures for notification of trunk disconnects
                  will be jointly developed by the Parties within ninety (90)
                  days of the Effective Date of this Agreement. Neither Party
                  shall be expected to maintain active status for a trunk
                  disconnected by the other Party for an extended or indefinite
                  period of time.

         9.2      The characteristics and methods of operation of any circuits,
                  facilities or equipment of either Party connected with the
                  services, facilities or equipment of the other Party pursuant
                  to this Agreement shall not (a) interfere with or impair
                  service over any facilities of the other Party; its
                  Affiliates, or its connecting and concurring carriers involved
                  in its services; (b) cause damage to their plant (c) violate
                  any applicable law or regulation regarding the invasion of
                  privacy of any communications carried over the Party's
                  facilities; or (d) create hazards to the employees of either
                  Party or to the public.

         9.3      Each Party shall be solely responsible, and bear the expense,
                  for the overall design of its services. Each Party shall also
                  be responsible for any redesign or rearrangement of its
                  services that may be required because of changes in
                  facilities, operations or procedures, minimum network
                  protection criteria, and operating or maintenance
                  characteristics of the

                                     Page 4
<PAGE>

                  facilities. If one Party creates a circumstance causing
                  additional costs to the other Party, the other Party may
                  collect construction charges from the first Party.

         9.4      To facilitate trouble reporting and to coordinate the repair
                  of the service provided by each Party to the other under this
                  Agreement. each Party shall designate and define a Trouble
                  Reporting Control Office ("TRCO") for such service. Each Party
                  shall furnish a trouble reporting telephone number for the
                  designated TRCO. This number shall have access to the location
                  where facility records are normally located and where current
                  status reports on any trouble re ports are readily available.
                  Current and historical trouble reports will be made available,
                  if necessary. Alternative out-of-hours procedures shall be
                  established to ensure access to a location that is staffed and
                  has the authority to initiate corrective action.

         9.5      Where new facilities, services and arrangements are installed
                  to rectify the service interruption, the TRCO shall ensure
                  that continuity exists and take appropriate transmission
                  measurements before advising the other Party that the new
                  circuit is ready for service.

         9.6      The Parties shall cooperate in isolating trouble conditions.
                  Before either Party reports a trouble condition, it shall use
                  reasonable efforts to isolate the trouble.

         9.7      In cases where a trouble condition affects a significant
                  portion of the other Party's service, the Parties shall assign
                  the same priority provided to other interconnecting carriers.

10.      Forecasting

         10.1     The Parties agree that during the first year of
                  Interconnection, joint forecasting and planning meetings will
                  take place no less frequently than once per quarter.

         10.2     The Parties shall establish joint forecasting responsibilities
                  for traffic utilization over trunk groups. Intercompany
                  forecast information must be provided by the Parties to each
                  other four (4) times a year. The quarterly forecasts shall
                  include forecasted requirements for each trunk group
                  identified in Paragraph 8.2.1 of this Attachment In addition,
                  for tandem-switched traffic, the forecast shall include the
                  quantity of tandem-switched traffic forecasted for each
                  subtending end office. The Parties recognize that, to the
                  extent historical traffic data can be shared between the
                  Parties, the accuracy of the forecasts will improve. Forecasts
                  shall be for a minimum of three (3) (current and plus-1 and
                  plus-2) years and shall include:

                  10.2.1   the use of Common Language Location Identifier
                           (CLLI-MSG), which is described in Bellcore documents
                           SIR 795-100-100 and BR 795-400-100; and

                  10-2.2   a description of major network projects anticipated
                           for the following six (6) months that could affect
                           the other Party. Major network projects include
                           trunking or network rearrangements, shifts in
                           anticipated traffic patterns, or other activities
                           that are reflected by a significant increase or
                           decrease in trunking demand for the following
                           forecasting period. This planning will include the
                           issues of network capacity, forecasting and
                           compensation calculation, where appropriate.

                  10.2.3   If forecasts vary significantly, the Parties shall
                           meet to review and reconcile such forecasts.

                           10.2.3.1 If the Parties are unable to reach such a
                                    reconciliation, the Local Interconnection
                                    trunk groups shall be provisioned to the
                                    higher forecast. At the end of three (3)
                                    months, the utilization of the Local
                                    Interconnection

Page 5
<PAGE>

                             trunk groups will be reviewed and if the average
                             CCS utilization for the third month is under
                             seventy five percent (75%) of capacity, either
                             Party may issue an order to resize the trunk group,
                             which shall be left with not less than twenty five
                             percent (25%) excess capacity,

                  10.2.3.2   If the Parties agree on the original forecast and
                             then it is determined that a trunk group is under
                             seventy five percent (75%) of CCS capacity on a
                             monthly-average basis for each month of any
                             three-month period, either Party may issue an order
                             to resize the trunk group, which shall be left with
                             not less than twenty five percent (25%) excess
                             capacity. In all cases, grade of service objectives
                             identified in this Agreement shall be maintained.

10.3     Each Party shall provide a specified point of contact for planning,
         forecasting and trunk serving purposes.

10.4     Trunking can be established to tandems or end offices or a combination
         of both via either one-way or two-way trunks. Trunking will be at the
         DS-0 level, DS-1 level, DS-3 level, or any other technically feasible
         level, subject to network disclosure requirements of the FCC. Initial
         trunking will be established between Pac-West's switching centers and U
         S WEST's access tandem(s). The Parties will utilize direct end office
         trunking under the following conditions:

         10.4.1   Tandem exhaust - If a tandem through which the Parties are
                  interconnected is unable to, or is forecasted to be unable to,
                  support additional traffic loads for any period of time, the
                  Parties will mutually agree on an end office trunking plan
                  that will alleviate the tandem capacity shortage and ensure
                  completion of traffic between Pac-West and U S WEST
                  subscribers.

         10.4.2   Traffic volume - The Parties shall install and retain direct
                  end office trunking sufficient to handle actual or reasonably
                  forecasted traffic volumes, whichever is greater, between an
                  Pac-West switching center and a U S WEST end office where the
                  local traffic exceeds or is forecasted to exceed 512 CCS at
                  the busy hour.

         10.4.3   Mutual agreement - The Parties may install direct end office
                  trunking upon mutual agreement in the absence of conditions
                  (1) or (2) above, which agreement shall not unreasonably be
                  withheld.

10.5     Grade of Service:

         A blocking standard of one percent (1 %) during the average busy
         day-busy hour, as defined by each Party's standards, for final trunk
         groups between an Pac-West end office and a U S WEST access tandem
         carrying Meet Point traffic shall be maintained. All other final trunk
         groups are to be engineered with a blocking standard of one percent
         (1%) Direct end office trunk groups are to be engineered with a
         blocking standard of one percent (1%).

                                     Page 6
<PAGE>

11.      Signaling

          11.1    Signaling protocol. The Parties will interconnect their
                  networks using SS7 signaling as defined in GR-317 and GR-394,
                  including ISDN User Part ("ISUP") for trunk signaling and
                  Transaction Capabilities Application Part ("TCAP") for
                  CCS-based features in the interconnection of their networks.
                  All appropriate industry standards for signaling
                  interoperability will be followed.

         11.2     The Parties will provide CCS to each other in conjunction with
                  all trunk groups supporting Local, Transit, and Toll Traffic.
                  The Parties will cooperate on the exchange of TCAP messages to
                  facilitate full interoperability of CCS-based features between
                  their respective networks, including all CLASS features and
                  functions. All CCS signaling parameters will be provided,
                  including automatic number identification (ANI), originating
                  line information (OLI), calling party category, charge number,
                  etc. For terminating Feature Group D, the Parties will pass
                  CPN if it receives CPN from Feature Group D carriers. All
                  privacy indicators will be honored. Where available, network
                  signaling information such as Transit Network Selection
                  ("TNS") parameter (CCS platform) and CIC/OZZ information (no
                  n-CCS environment) will be provided by the Parties wherever
                  such information is needed for call routing or billing. The
                  Parties will follow all appropriate industry standards
                  pertaining to TNS and CIC/OZZ codes.

         11.3     Standard Interconnection facilities shall be Extended
                  Superframe (ESF) with B8ZS line code. Where ESF/B8ZS is not
                  available, Pac-West will agree to using other Interconnection
                  protocols on an interim basis until the standard ESF1B8ZS is
                  available. U S WEST will provide anticipated dates of
                  availability for those areas not currently ESF/B8ZS
                  compatible.

          11.4    Where Pac-West is unwilling to utilize an alternate
                  Interconnection protocol, Pac-West will provide U S WEST an
                  initial forecast of 64 Kbps clear channel capability ("64K
                  CCC") trunk quantities within thirty (30) days of the
                  Effective Date of this Agreement consistent with the
                  forecasting agreements between the Parties. Upon receipt of
                  this forecast, the Parties will begin joint planning for the
                  engineering, procurement, and installation of the designated
                  64K CCC Local Interconnection trunk groups and the associated
                  B8ZS Extended Super Frame facilities, for the purpose of
                  transmitting 64K CCC data calls between Pac-West and U S WEST.
                  Where additional equipment is required, such equipment will be
                  obtained, engineered, and installed on the same basis and with
                  the same intervals as any similar growth job for an IXC,
                  Pac-West or U S WEST internal customer demand for 64K CCC
                  trunks. Where technically feasible, these trunks will be
                  established as two-way.

12.      Ordering

         12.1     Pac-West may order Interconnection points using the ASIR
                  process or other industry standard for local service ordering.

         12.2     U S WEST must provide installation to Pac-West in the shorter
                  of the time it provides installation to itself or any other
                  Person.

         12.3     If Pac-West requests a shorter installation time than required
                  by the provisions of this Attachment, U S WEST may charge
                  Pac-West for any increased expense incurred for such
                  installation.

         12.4     Pac-West shall, on each order for Local Interconnection
                  trunks, specify the Pac-West NXXs that are assigned to the
                  trunks.

13.      Network Management

                                     Page 7
<PAGE>

         13.1     Protective Protocols

                  Either Party may use protective network traffic management
                  controls such as 7-digit and 10 digit code gaps on traffic
                  toward each others network when required to protect the public
                  switched network from congestion due to facility failures,
                  switch congestion or failure or focused overload.

         13.2     Rerouting Protocols

                  Where the capability exists, originating or terminating
                  traffic reroutes may be implemented by either Party to
                  temporarily relieve network congestion due to facility
                  failures or abnormal calling patterns. Reroutes will not be
                  used to circumvent normal trunk servicing. Rerouting controls
                  will only be used when mutually agreed to by the Parties.

         13.3     Mass Calling

                  Pac-West and U S WEST shall cooperate and share pre-planning
                  information, where available and in compliance with federal
                  and state regulations. regarding cross-network callins
                  expected to generate large or focused temporary increases in
                  call volumes, to prevent or mitigate the impact of these
                  events on the public switched network. Furthermore, INP
                  numbers may only be used consistent with network efficiency
                  and integrity i.e., inhibitions on mass calling events.

14.      Usage Measurement

         14.1     When applicable, each Party shall provide to the other

                  14.1.1   Bellcore AMA formatted records to generate bills to
                           the other Party;

                  14.1.2   measurement of minutes of use over Local
                           Interconnection trunk groups in actual conversation
                           seconds. The total conversation seconds over each
                           individual Local Interconnection trunk group will be
                           totaled for the entire monthly bill-round and then
                           rounded to the next whole minute; and

                  14.1.3   within twenty (20) calendar days after the end of
                           each quarter (commencing with the first full quarter
                           after the Effective Date of this Agreement), a usage
                           report with the total traffic volume described in
                           terms of minutes and messages and by call type (i.e.,
                           local, toll, and other) terminated to each other over
                           SS7 local interconnection trunk groups.

15.      Audiotext and Mass Announcement Services

         The Parties agree that access to the audiotext, mass announcement and
         information services of one Party may be made available to the other
         Party upon execution of a separate agreement or an amendment to this
         Agreement.

16.      Interconnection to Network Elements

         16.1     Technical Requirements

                  16.1.1   When requested by Pac-West, US WEST shall provide
                           Interconnection between U S WEST Network Elements
                           provided to Pac-West and Pac-West's network at

                                     Page 8
<PAGE>

                     transmission rates designated by Pac-West. If additional
                     equipment beyond that which U S WEST currently has in
                     place. is planning to Put in place or is otherwise required
                     to have in place is required to meet such transmission
                     rates. the installation and/or acquisition of such
                     equipment shall be accomplished pursuant to the ordering
                     process set forth in this Agreement.

         16.1.2  Traffic shall be combined and routed as follows:

                  16.1.2.1   At Pac-West's request, U S WEST shall receive
                             Pac-West traffic destined to the U S WEST Operator
                             Systems Network Element, on trunks from an Pac-West
                             end-office or an Pac-West tandem.

                  16.1.2.2   At Pac-West's request, U S WEST shall receive
                             Pac-West CAMA-ANI (Centralized Automatic Message
                             Accounting - Automatic Number Identification)
                             traffic destined to the U S WEST 911 PSAPs, or E911
                             tandems, on trunks from an Pac-West end-office.

                  16.1.2.3   At Pac-West' s request, U S WEST shall receive
                             Pac-West SS7 traffic destined to any U S WEST E911
                             tandem on trunks from an Pac-West end-office, when
                             SS7 E911 signaling is available in U S WEST's
                             network.

         16.1.3   When requested by Pac-West and a third party carrier, U S WEST
                  shall provide interconnections between Pac-Wests network, and
                  the other carrier's network through the U S WEST network at
                  transmission rates designated by Pac-West, including, but not
                  limited to, DS-1, DS-3, and STS-1, where available. U S WEST
                  shall combine and route traffic to and from other local
                  carriers and interLATA carriers through the U S WEST network,
                  and, at Pac-Wests request, U S WEST shall record and keep
                  records of such traffic for Pac-West billing purposes to the
                  extent possible.

         16.1.4   U S WEST shall provide two-way trunk groups for
                  Interconnections. At Pac-Wests request, and consistent with an
                  efficient network architecture, U S WEST shall provide
                  unidirectional traffic on such trunks, in either direction,
                  effectively operating them as if they were one-way trunk
                  groups.

         16.1.5   All trunking provided by U S WEST shall adhere to the
                  applicable performance requirements set forth in the "General
                  Performance Requirements" section of this Agreement, pursuant
                  to Sections 1.3.1 and 1.3.2 of Part A of this Agreement

         16.1.6   At Pac-Wests request, U S WEST shall work cooperatively with
                  Pac-West to provide for overflow routing from a given trunk
                  group or groups onto another trunk group or groups as Pac-West
                  designates.

         16.1.7   U S WEST and Pac-West shall agree on the establishment of
                  two-way trunk groups for the exchange of traffic for other
                  IXCs. These trunk groups can be provided in a meet point
                  arrangement.

         16.1.8   Interconnection shall be made available upon Pac-Wests request
                  at any technically feasible Point of Interface. All trunk
                  interconnections shall be provided, including, SS7, MF, DTMF,
                  DialPulse, PRI-ISDN (where available), DID (Direct Inward
                  Dialing), CAMA-ANI, and trunking necessary so that INP can be
                  provided.

     16.2     Trunk Interface Requirements

                                     Page 9
<PAGE>

                  16.2.1 Trunks

                  16.2.1.1 U S WEST shall allow Pac-West to provide direct
                           trunking to each U S WEST E911 end office or tandem,
                           as is appropriate for the applicable serving area.
                           These trunks are to be provided as one-way trunks
                           from a given Pac-West end office to the U S WEST E911
                           end office or tandem.

                  16.2.1.2 U S WEST shall provide for overflow E911 traffic in
                           the same manner that U S WEST provides E911 overflow
                           for itself.

         16.2.2 S911 Trunks

                  If and when S911 tandems become available in the U S WEST
                  network, U S WEST shall allow Pac-West to provide direct
                  trunking to each U S WEST S911 tandem. Such SS7 trunks are to
                  be provided as one-way trunks from a given Pac-West endoffice
                  to the U S WEST S911 tandem.

         16.2.3 Local Switch and Access Tandem Trunks

                  16.2.3.1   U S WEST shall provide trunks groups provisioned
                             exclusively to carry intraLATA Toll Traffic, as
                             designated by Pac-West.

                  16.2.3.2   U S WEST shall provide trunk groups provisioned
                             exclusively to carry interLATA traffic, as
                             designated by Pac-West.

                  16.2.3.3   U S WEST shall provide SS7 trunks which provide SS7
                             Interconnection. At Pac-Wests request, MF trunks
                             may be substituted for SS7 trunks where applicable.

                  16.2.3.4   U S WEST shall simultaneously route calls based on
                             dialed digits (in accordance with the standard
                             GR-317-CORE), and Carrier Identification Code (in
                             accordance with the standard GR-394-CORE) over a
                             single SS7 trunk group.

         16.2.4  U S WEST Operator Services Trunk

                 U S WEST shall provide Operator Services trunks as one-way
                 trunks from the U S WEST network to the Pac-West network.

16.3     Network Interconnecton between U S WEST and Pac-West shall meet or
         exceed all of the requirements for network Interconnection set forth in
         the following technical references:

         16.3.1  GR-317-CORE, Switching System Generic Requirements for Call
                 Control Using the Integrated Services Digital Network User Part
                 (ISDNUP), Bellcore, February 1994;

         16.3.2  GR-394-CORE. Switching System Generic Requirements for
                 Interexchange Carrier Interconnection Using the Integrated
                 Services Digital Network User Part (ISDNUP), Bellcore, February
                 1994;

         16.3.3  FR-NWT-000271, OSSGR Operator Services Systems Generic
                 Requirements, Bellcore, 1994 Edition; and

                                       10
<PAGE>

                  16.3.4   FR-NVVT-000064, LATA Switching Systems Generic
                           Requirements (LSSGR), Bellcore. 1994 Edition.

17.      Reciprocal Traffic Exchange

         17.1     Scope

                  Reciprocal traffic exchange addresses the exchange of traffic
                  between Pac-West end users and U S WEST end users. If such
                  traffic is local, the provisions of this Agreement shall
                  apply. Where either Party acts as an intraLATA toll provider
                  or interLATA IXC or where either Party interconnects and
                  delivers traffic to the other from third parties, each Party
                  shall bill such third parties the appropriate charges pursuant
                  to its respective tariffs or contractual offerings for such
                  third party terminations. Absent a separately negotiated
                  agreement to the contrary, compensation for reciprocal traffic
                  exchange applies solely to traffic exchanged directly between
                  the Parties without the use of third party transit providers.

         17.2     Responsibilities of the Parties

                  17.2.1   U S WEST and Pac-West agree to treat each other
                           fairly, nondiscriminatorily, and equally for all
                           items included in this Agreement, or related to the
                           support of items included in this Agreement.

                  17.2.2   Pac-West and U S WEST agree to exchange such reports
                           and/or data as provided in this Agreement to
                           facilitate the proper billing of traffic.

                  17.2.3   (Intentionally left blank for numbering consistency)

                  17.2.4   Pac-West and U S WEST shall share responsibility for
                           all Control Office functions for Local
                           Interconnection trunks and trunk groups, and both
                           Parties shall share the overall coordination,
                           installation, and maintenance responsibilities for
                           these trunks and trunk groups.

                  17.2.5   The Party that performs the End Office function is
                           responsible for all Control Office functions for the
                           meet point trunking arrangement trunks and trunk
                           groups, and shall be responsible for the overall
                           coordination, installation, and maintenance
                           responsibilities for these trunks and trunk groups.

                  17.2.6   Pac-West and U S WEST shall:

                           17.2.6.1      Provide trained personnel with adequate
                                         and compatible test equipment to work
                                         with each other's technicians.

                           17.2.6.2      Notify each other when there is any
                                         change affecting the service requested,
                                         including the due date.

                           17.2.6.3      Coordinate and schedule testing
                                         activities of their own personnel, and
                                         others as applicable, to ensure its
                                         Interconnection trunks/trunk groups are
                                         installed per the Interconnection
                                         order, meet agreed-upon acceptance test
                                         requirements, and are placed in service
                                         by the due date.

                                    Page 11
<PAGE>

                  17-2.6.4      Perform sectionalization to determine if a
                                trouble is located in its facility or its
                                portion of the Interconnection trunks odor to
                                referring the trouble to each other.

                  17.2.6.5      Advise each other's Control Office if there is
                                an equipment failure which may affect 'the
                                Interconnection trunks.

                  17.2.6.6      Provide each other with a trouble
                                reporting/repair contact number that is readily
                                accessible and available twenty-four (24) hours
                                per day, seven (7) days per week. Any changes to
                                this contact arrangement must be immediately
                                provided to the other Party.

                  17.2.6.7      Provide to each other test-line numbers and
                                access to test lines.

                  17.2.6.8      Cooperatively plan and implement coordinated
                                repair procedures for the meet point and Local
                                Interconnection trunks and facilities to ensure
                                trouble reports are resolved in a timely and
                                appropriate manner.

17.3     Types of Traffic

         17.3.1   The types of traffic to be exchanged or provided under this
                  Agreement include., but are not limited to, the following:

                  17.3.1.1     EAS/Local Traffic,
                  17.3.1.2     Transit Traffic,
                  17.3.1.3     Switched Access Traffic,
                  17.3.1.4     Ancillary traffic includes all traffic destined
                               for Ancillary Services, or that may have special
                               billing requirements, including, but not limited
                               to, the following:

                                (a) Directory Assistance
                                (b) 911/E911
                                (c) Operator call termination (busy line
                                    interrupt and verify)
                                (d) 800/888 database dip
                                (e) LIDB
                                (f) Information services requiring
                                    special billing.

                  17.3.1.5      Unless otherwise stated in this Agreement,
                                ancillary traffic will be exchanged in
                                accordance with whether the traffic is
                                Local/EAS, intraLATA toll, or Switched Access.

17.4     Transport and Termination of Exchange Traffic

         17.4.1 Termination of Local Traffic

                  Local Traffic will be terminated pursuant to the Reciprocal
                  Compensation described in Attachment 1.

         17-4.2 EAS/Local Traffic

                                    Page 12
<PAGE>

         As negotiated between the Parties, the exchange of local traffic
         between the Parties may occur in several ways.

         17.4.2.1     While the Parties anticipate the use of two way trunks for
                      the delivery of Local Traffic, either Party may elect to
                      provision its own one-way trunks for delivery of Local
                      Traffic to be terminated on the other Party s network at
                      the "initial" point of Interconnection:

         17.4.2.2     The Parties may elect to purchase transport services from
                      each other or from a third party. Such transport delivers
                      the originating Party's Local Traffic to the terminating
                      Party's end office or tandem for call termination.
                      Transport may be purchased as either tandem switched
                      transport (which is included in the tandem call
                      termination rate) or direct trunk transport;

         17.4.2.3     To the extent that Pac-West has established a collocation
                      arrangement at a U S WEST end office location, and has
                      available capacity, the Parties agree that Pac-West shall
                      provide two-way direct trunk facilities, when required,
                      from that end office to the Pac-West switch. In all other
                      cases, the direct facility may be provisioned by U S WEST
                      or Pac-West or a third party. If both Pac-West and U S
                      WEST desire to provision the facility and cannot otherwise
                      agree, the Parties may agree to resolve the dispute
                      through the submission of competitive bids.

    17.4.3 Transit Traffic

         17.4.3.1      U S WEST will accept traffic originated by Pac-West and
                       will terminate it at a point of interconnection with
                       another CLEC, Exchange Carrier, IXC or Wireless Carrier.
                       U S WEST will provide this transit service through Tandem
                       Office Switches. Pac-West may also provide U S WEST with
                       Transit Service.

         17.4.3.2      The Parties expect that all networks involved in
                       transporting Transit Traffic will deliver calls to each
                       involved network with CCS/SS7 protocol and the
                       appropriate ISUP/TCAP message to facilitate full
                       interoperability and billing functions. In all cases, the
                       originating company is responsible to follow the EMIR
                       standard and to exchange records with both the transiting
                       company and the terminating company, to facilitate the
                       billing process to the originating network.

         17.4.3.3      The Parties will use industry standards developed to
                       handle the provision and billing of Switched Access by
                       multiple providers (MECAB, MECOD and the Parties' FCC
                       tariffs).

         17.4.4 Tall Traffic

                Toll Traffic routed to an access tandem, or directly routed to
                an end office, will be terminated as Switched Access Service.

17.5     Interface Code Availability And Optional Features

         17.5.1 Interface Code Availability

                                    Page 13
<PAGE>

                        Supervisory Signaling specifications. and the applicable
                        network channel interface codes for Local
                        Interconnection trunks, are the same as those used for
                        Feature Group D Switched Access Service. as described in
                        the Parties' applicable Switched Access tariffs.

                 17.5.2 Optional Features

                        17.5.2.1  Inband MF or SS7 Out of Band Signaling Inband
                                  MF signaling and SS7 out of band signaling are
                                  available for local trunks. MF signaling or
                                  SS7 out-of-band signaling must be requested on
                                  the order for the new local trunks.
                                  Provisioning of the local trunks equipped with
                                  MF signaling or SS7 out of band signaling is
                                  the same as that used for Feature Group D
                                  Switched Access. Common Channel Signaling
                                  Service, as described in this Agreement, must
                                  be ordered by Pac-West when SS7 out-of-band
                                  signaling is requested on local trunks.

                        17.5.2.2  Clear Channel Capability Clear channel
                                  capability permits 24 DS-0-64 kbit/s services
                                  or 1.536 Mbit/s of information on the 1.544
                                  Mbit/s line rate. Clear channel capability is
                                  available for local trunks equipped with SS7
                                  out-of-band signaling. Clear channel
                                  capability is only available on trunks to U S
                                  WEST's access tandem switch or U S WEST's end
                                  office switches (where available). Clear
                                  channel capability must be requested on the
                                  order for the new local trunks. The
                                  provisioning of the local trunks equipped with
                                  clear channel capability is the same as that
                                  used for Feature Group D Switched Access
                                  Service. U S WEST will provide Pac-West with a
                                  listings of U S WEST end offices, local
                                  tandems and access tandems equipped with clear
                                  channel capability. (Clear channel capability
                                  is not available on trunks to U S WEST's local
                                  tandem switches or end offices where it is
                                  currently not deployed. Pac-West agrees to use
                                  the BFR process to request clear channel
                                  capability for such additional switches.
                                  Prices for such additional clear channel
                                  capability, if any, will be established
                                  through the BFR process).

17.6     Measuring Local Interconnection Minutes

         17.6.1   Measurement of terminating Local Interconnection minutes, as
                  calculated per Attachment 5, begins when the terminating local
                  entry switch receives answer supervision from the called end
                  user's end office indicating the called end user has answered.
                  The measurement of terminating call usage over local trunks
                  ends when the terminating local entry switch receives
                  disconnect supervision from either the called end user's end
                  office, indicating the called end user has disconnected, or
                  Pac-Wests Point of Interconnection, whichever is recognized
                  first by the entry switch.

         17.6.2   U S WEST and Pac-West are required to provide each other the
                  proper call information (e.g., originated call party number
                  and destination call party number, etc.) to enable each Party
                  to issue bills in a Complete and timely fashion.

17.7     Testing

         17.7.1 Acceptance Testing

                                       14
<PAGE>

                  At the time of installation of a local trunk group, and at no
                  additional charge, the Parties will cooperatively test the
                  same parameters test d for terminating Feature Group D
                  Switched Access Service.

         17.7.2 Testing Capabilities

                  17.7.2.1     Terminating Local Interconnection trunk testing
                               i's provided  where equipment is available, with
                               the following test lines: seven-digit access to
                               balance (100 type), milliwatt (102 type),
                               nonsynchronous or synchronous, automatic
                               transmission measuring (105 type), data
                               transmission (107 type), loop-around, short
                               circuit. open circuit. and non-inverting digital
                               loopback (108 type).

                  17.7.2.2     In addition to Local Interconnection trunk
                               acceptance testing, other tests are available
                               (e.g., additional cooperative acceptance testing,
                               automatic scheduled testing, cooperative
                               scheduled testing, manual scheduled testing, and
                               non-scheduled testing) at the applicable tariff
                               rates.

17.8     Mileage Measurement

         Where required, the mileage measurement for Local Interconnection
         facilities and trunks is determined in the same manner as the mileage
         measurement for Feature Group D Switched Access Service.

                                       15
<PAGE>

                                                                  Attachment 5

                               TABLE OF CONTENTS

                                  ATTACHMENT 5

BUSINESS PROCESS REQUIREMENTS

 1. General Business Requirements ........................................1
 2. Pre-Ordering .........................................................3
 3. Ordering and Provisioning ............................................8
 4. Connectivity Billing and Recording ..................................18
 5. Provision Of Customer Usage Data ....................................27
 6. Maintenance .........................................................37
 7. Miscellaneous Services and Functions ................................43
<PAGE>

1.       General Business Requirements

1.1     Procedures

        1.1.1    U S WEST Contact with Subscribers

                 1.1.1.1 Pac-West at all times shall be the primary contact and
                         account control for ail interactions with its
                         subscribers, except as specified by Pac-West. Pac-West
                         subscribers include active Customers as well as those
                         for whom service orders are pending.

                 1.1.1.2 U S WEST shall ensure that any U S WEST personnel who
                         may receive customer inquiries, or otherwise have
                         opportunity for subscriber contact: (a) provide
                         appropriate referrals and telephone numbers to
                         subscribers who inquire about Pac-West services or
                         products; (b) do not in any way disparage Pac-West or
                         its products or services during such inquiry or
                         subscriber contact; and (c) do not provide information
                         about U S WEST products or services during that same
                         inquiry or subscriber contact.

                 1.1.1.3 Pac-West shall ensure that any Pac-West personnel who
                         may receive customer inquiries, or otherwise have
                         opportunity for subscriber contact: (a) provide
                         appropriate referrals and telephone numbers to
                         subscribers who inquire about U S WEST services or
                         products; (b) do not in any way disparage U S WEST, or
                         its products or services during such inquiry or
                         subscriber contact; and (c) do not provide information
                         about Pac-West products or services during that same
                         inquiry or subscriber contact.

                 1.1.1.4 U S WEST shall not use Pac-West s request for
                         subscriber information, order submission or any other
                         aspect of Pac-Wests processes or services to aid U S
                         WESTs marketing or sales efforts.

        1.1.2    Expedite, Escalation and Disaster Procedures

                 1.1.2.1 No later than sixty (60) days after the Effective Date
                         of this Agreement. U S WEST and Pac-West shall develop
                         mutually acceptable escalation and expedite procedures
                         which may be invoked at any point in the Service
                         Ordering, Provisioning, Maintenance and Subscriber
                         Usage Data transfer processes to facilitate rapid and
                         timely resolution of disputes. Within the said sixty
                         (60) day period, U S WEST and Pac-West will establish
                         intercompany contact lists for purposes of handling
                         subscriber and other matters which require
                         attention/resolution outside of normal business
                         procedures. To the extent possible, U S WEST shall
                         notify Pac-West of any changes to its escalation
                         contact list at least one (1) week before such chances
                         are effective.

                 1.1.2.2 No later than sixty (60) days after the Effective Date
                         of this Agreement, U S WEST and Pac-West shall jointly
                         establish contingency and disaster recovery plans for
                         those cases in which normal Service Ordering,
                         Provisioning, Maintenance, Billing and other procedures
                         for U S WESTs unbundled Network Elements, features,
                         functions and Resale Services are inoperable.

        1.1.3    Operational and Technological Changes

                 1.1.3.1 U S WEST shall notify Pac-West of any material
                         operational or technological (e.g., network, systems
                         interfaces) changes related to any services,
                         Interconnection

                                     Page 1
<PAGE>

                         methods, or Network Elements purchased by Pac-West. At
                         the time U S WEST decides to make such a change, U S
                         WEST will notify Pac-West in sufficient time to allow
                         Pac-West to make necessary adjustments to accommodate
                         the change, but in no case with less than thirty (30)
                         days' notice, unless otherwise agreed to by the
                         Parties. Objections to the proposed change must be
                         given in writing to U S WEST in a reasonable time. For
                         the purposes of this Section, material changes snail be
                         defined as those changes which will likely impact
                         current interactions between Pac-West (or its
                         customers) and U S WEST.

                 1.1.3.2 U S WEST agrees to notify Pac-West whenever an Pac-West
                         subscriber who is provided local service through
                         Services for Resale, INP/NP, or unbundled Network
                         Elements changes Pac-West PIC status.

        1.1.4     Customer of Record

                  1.1.4.1 Providing Pac-West has obtained proper Customer
                  authorization, U S WEST shall recognize Pac-West as the
                  Customer of Record for all Network Elements or Services for
                  Resale ordered by Pac-West and shall send all notices,
                  invoices, and information which pertain to such ordered
                  services directly to Pac-West Pac-West will provide U S WEST
                  with addresses to which U S WEST shall send all such notices,
                  invoices, and information.(1)

        1.1.5     Work Center Interface Procedures

                  1.1.5.1 U S WEST and Pac-West shall, within ninety (90) days
                  of the Effective Date of this Agreement, develop and implement
                  work center interface procedures for each function/business
                  process necessary for fulfilling the terms of this Agreement

1.2     Service Offerings

        1.2.1    Changes in Retail Service Offerings

                 1.2.1.1 Pursuant to Section 23.2 of Part A of this Agreement,
                 U S WEST shall provide summaries to Pac-West describing the
                 proposed change(s) of services which are available for resale
                 pursuant to this Agreement.

                 1.2.1.2 (Intentionally left blank for numbering consistency)

                 1.2.1.3 U S WEST shall provide Pac-West with access to new
                 services, features, and functions concurrent with U S WEST's
                 notice to Pac-West of such changes, so that Pac-West may
                 evaluate these services.

        1.2.2    Essential Services

                 1.2.2.1 U S WEST shall designate trunks or lines as an
                 Essential Service Line (ESL) or Telecommunications Service
                 Priority (TSP), whichever is applicable, upon Pac-Wests
                 request, based on industry standards.

----------

1  Per Order at page 23, Issue 40.

                                     Page 2
<PAGE>

        1.2.3    Blocking Services

                 1.2.3.1 Upon request from Pac-West, U S WEST shall provide
                 blocking in accordance with U S WEST standard intervals for
                 700, 900, and 976 services. or other services of similar type
                 as may now exist or may be developed in the future according to
                 industry standards, and shall provide Billed Number Screening
                 ("BNS"), including required LIDB updates, or equivalent
                 service for blocking completion of bill-to-third parry and
                 collect calls, on a line. trunk, or individual service basis.

        1.2.4    Training Support

                 1.2.4.1 U S WEST will train its employees who may communicate
                 with Pac-West subscribers to treat Pac-West in a
                 nondiscriminatory manner. U S WEST will solicit and may take
                 into account input from Pac-West in the development of such
                 training and will permit Pac-West to review. but not approve,
                 such training. Such training will comply with the branding
                 requirements of this Agreement.

                 1.2.4.2 U S WEST or its agent shall train Pac-West employees on
                 U S WEST's systems and processes necessary to assure the
                 accuracy of required information exchange between Pac-West.
                 Information/materials provided to Pac-West should include, at a
                 minimum, operational and procedural information, and U S
                 WEST-specific system access/interface instruction for
                 performing similar functions.

        1.2.5    Carrier Identification Codes

                 U S WEST shall provide to Pac-West the active Carrier
                 Identification Codes (CIC) for both Dial 1 and toll free (e.g.,
                 800, 888) services for each of its access tandems pursuant to
                 industry guidelines.

2.      Pre-Ordering

2.1     General Business Requirements

        2.1.1    Street Address Guide (SAG)

                 Within sixty (60) days after the Effective Date of this
                 Agreement, U S WEST shall provide to Pac-West the SAG data in
                 an electronic format, when available. or otherwise as mutually
                 agreed. All changes to the SAG shall be provided to Pac-West on
                 a weekly basis.

         2.1.2   CLASS and Custom Features

                 2.1.2.1 Pac-West may order the entire set of CLASS and Custom
                 features and functions, or a subset of any one or any
                 combination of such features. In addition, U S WEST shall
                 provide Pac-West with a list of features and functions
                 available on an end office by end office basis.

         2.1.3   Customer Payment History

                 2.1.3.1 Pac-West and U S WEST agree to make available to a
                 Mutually agreed upon third-party credit reporting agency, on a
                 timely basis, such of the following Customer payment history
                 information available for each person or entity that applies
                 for local service or intraLATA toll Telecommunications
                 Service(s) from either Party:

                                     Page 3
<PAGE>

                    2.1.3.1.1    Applicant's name:

                    2.1.3.1.2    Applicant's address;

                    2.1.3.1.3    Applicant's previous phone number, if any;

                    2.1.3.1.4    Amount, if any, of unpaid balance in
                                 applicant's name:

                    2.1.3.1.1    Whether applicant is delinquent on payments:

                    2.1.3.1.6    Length of service with prior local or
                                 intraLATA toll provider:

                    2.1.3.1.7    Whether applicant had local or intraLATA toll
                                 service terminated or suspended within the last
                                 six (6) months with an explanation of the
                                 reason therefore; and,

                    2.1.3.1.8    Whether applicant was required by prior local
                                 or intraLATA toll provider to pay a deposit or
                                 provide another form of security including
                                 the amount of each.

                 2.1.3.2 Such information shall be provided on the condition
                 that the credit reporting agency only make such information
                 available to the carrier to which the person or entity in
                 question has applied for Telecommunication Service(s).

        2.1.4    Number Administration/Number Reservations

                 2.1.4.1 Until Number Administration functions are assumed by a
                 neutral third party in accordance with FCC rules and
                 regulations, U S WEST shall assign NXXs to Pac-West on a
                 non-discriminatory and equivalent basis following NANP
                 guidelines. In addition, U S WEST shall provide testing and
                 loading of Pac-West's NXX on the same basis as U S WEST
                 provides itself or its Affiliates. Further, in U S WESTs role
                 as number administrator, it shall provide Pac-West with access
                 to abbreviated dialing codes, access arrangements for 555 line
                 numbers, and the ability to obtain telephone numbers, including
                 vanity numbers, while a customer is on the phone with Pac-West
                 U S WEST shall provide the same range of number choices to
                 Pac-West, including choice of exchange number, as U S WEST
                 provides its own customers. Reservation and aging of numbers
                 shall remain U S WESTs responsibility.

                 2.1.4.2 Pac-West may reserve blocks of U S WEST telephone
                 numbers in accordance with U S WEST's tariffs, or in the same
                 manner U S WEST reserves telephone numbers for its own use.

                 2.1.4.3 Where Pac-West has obtained its own NXX, but has
                 purchased U S WEST Services for Resale o r Network Elements, U
                 S WEST agrees to recognize the Pac-West NXX in U S WESTs switch
                 according to the local calling area defined by Pac-West and
                 approved by the Commission.

                 2.1.4.4 For resale and the unbundled switching element U S WEST
                 shall accept Pac-West orders for vanity numbers and blocks of
                 numbers for use with complex services including, but not
                 limited to, DID, Centrex, and hunting arrangements, as
                 requested by Pac-West on a non-discriminatory, equivalent basis
                 following NANP guidelines.

                 2.1.4.5 For simple services, U S WEST shall provide real-time
                 electronic interfaces to Pac-West to obtain telephone number
                 confirmation while the customer is on the line. When real time
                 electronic interfaces are not available for simple services
                 number reservations, U S WEST shall provide alternative means
                 for confirmation of the number reservation while the customer
                 is on the line. For number reservations associated with complex
                 services, U S WEST shall provide confirmation of the number
                 reservation

                                     Page 4
<PAGE>

                 within forty-eight (48) hours of Pac-West's request or within
                 such time as U S WEST may provide to itself or Affiliates,
                 whichever is less.

                 2.1.4.6 Number Resources Arrangements

                    2.1.4.6.1 Nothing in this Agreement shall be construed in
                    any manner to limit or otherwise adversely impact either
                    Party's right to the request and assignment of any NANP
                    number resources including, but not limited to. central
                    office (NXX) codes pursuant to the Central Office Code
                    Assignment Guidelines (last published by the Industry
                    Numbering Committee ("INC") as INC 95-0407-008. Revision
                    4/19/96, formerly ICCF 93-0729-010).

                    2.1.4.6.2 To the extent U S WEST serves as Central Office
                    Code Administrator for a given region, U S WEST will support
                    all Pac-West requests related to central office code (NXX)
                    administration and assignments in the manner required and
                    consistent with the Central Office Code Assignment
                    Guidelines.

                    2.1.4.6.3 (intentionally left blank for numbering
                    consistency)

                    2.1.4.6.4 The Parties will comply with (NXX) administration
                    requirements as prescribed by the FCC, the Commission, and
                    accepted industry guidelines.

                    2.1.4.6.5 It shall be the responsibility of each Party to
                    program and update its own switches and network systems
                    pursuant to the Local Exchange Routing Guide ("LERG")
                    guidelines to recognize and route traffic to the other
                    Party's assigned NXX codes at all times. Neither Party shall
                    impose any fees or charges whatsoever on the other Party for
                    such activities. The Parties will cooperate to establish
                    procedures to ensure the timely activation of NXX
                    assignments in their respective networks.

                    2.1.4.6.6 Each Party shall be responsible for notifying its
                    customers of any changes in numbering or dialing
                    arrangements to include changes such as the introduction of
                    new NPAs or new NXX codes.

                    2.1.4.6.7 Until an impartial entity is appointed to
                    administer telecommunications numbering, U S WEST will
                    assign NXX codes to Pac-West in accordance with national
                    guidelines at no charge and on a nondiscriminatory basis.

                    2.1.4.6.8 Each Party is responsible for administering NXX
                    codes assigned to it Each Party is responsible for obtaining
                    LERG listings of CLLI codes assigned to its switches. Each
                    Party shall use the LERG published by Bellcore or its
                    successor for obtaining routing information and shall
                    provide all required information to Bellcore for maintaining
                    the LERG in a timely manner.

                 2.1.4.7 U S WEST shall provide -provisioning support outside of
                 scheduled work hours on a nondiscriminatory exception basis as
                 requested by Pac-West. Such support may be subject to a minimum
                 labor charge.

                 2.1.4.8 Service Assurance Warranties and Incentives: U S WEST
                 shall provide to Pac-West service assurance warranties and
                 incentives as U S WEST provides such

                                     Page 5
<PAGE>

                 service warranties and incentives to its own end users or any
                 other Person except as otherwise provided by the Commission.

                 2.1.4.9 Availability of Network Capacity: Consistent with
                 Pac-West's forecasts. U S WEST shall deploy and keep deployed
                 network facilities for Pac-West services in a
                 non-discriminatory manner and in the same manner as U S WEST
                 makes such facilities available to itself for its services.

                 2.1.4.10 Workcenter Interface Methods and Procedures: U S WEST
                 and Pac-West shall finalize interface methods and procedures
                 between their respective work centers detailing systems and
                 processes for ordering and provisioning. Such methods and
                 procedures shall be completed within one hundred twenty (120)
                 days after a written request by either Party. The lack of
                 workcenter interface methods and procedures shall not inhibit
                 the provision of services under this Agreement.

2.2      Service Order Process Requirements

        2.2.1    (intentionally left blank for numbering consistency)

        2.2.2    Specific Unbundling Requirements

               2.2.2.1 When ordering a Combination, Pac-'Nest shall have the
               option of ordering all features, functions and capabilities of
               each Network Element.

               2.2.2.2 When Pac-West orders Network Elements, U S WEST shall
               provision all features, functions, and capabilities appropriate
               to the Network Elements which may include, but are not limited
               to:

                    2.2.2.2.1 the basic switching function of connecting lines
                    to lines, lines to trunks, trunks to lines, and trunks to
                    trunks, as well as the same basic capabilities made
                    available to U S WEST's Customers, such as telephone number,
                    white page listing, and dial tone; and

                    2.2.2.2.2 all other features the switch has activated,
                    including, but not limited to, custom calling, custom local
                    area signaling service features and Centrex, as well as any
                    technically feasible customized routing functions provided
                    by the switch.

2.3      Systems Interfaces and Information Exchanges

        2.3.1  General Requirements

               (Intentionally left blank for numbering consistency)

        2.3.2  Pre-Ordering and Provisioning for Resale Services and Unbundled
               Network Elements

                 2.3.2.1 U S WEST shall provide to Pac-West a list of all
                 intraLATA and interLATA carriers available for Customer
                 selection on a central office level.

                 2.3.2.2 (intentionally left blank for numbering consistency)

                 2.3.2.3 U S WEST shall provide Pac-West with access to Customer
                 Profile Information ("CPI") without requiring Pac-West to
                 produce a signed Letter of

                                     Page 6
<PAGE>

                 Authorization ("LOA") subject to proof of authorization
                 requirements described elsewhere in this Agreement, based on
                 Pac-Wests blanket representation that the Customer has
                 authorized Pac-West to obtain such CPI.

                    2.3.2.3.1 CPI shall be in a mutually agreed to format at the
                    line and/or trunk level. U S WEST shall provide to Pac-West
                    a real-time. electronic interlace to U S WEST Customer
                    information systems which will allow Pac-West to obtain the
                    Customer profile, which may include, but not be limited to.
                    Customer name, service addresses, billed telephone
                    number(s), and identification of features and services
                    provided by U S WEST on the Customer accounts. and to obtain
                    information on all features and services available in the
                    end office where Customer's services are currently
                    provisioned. The preceding information may not include
                    services deemed not to be Telecommunications Services by the
                    Commission.

                         2.3.2.3.1.1 Until access is available via a real-time,
                         electronic interface for CPI, U S WEST agrees that
                         Pac-West can obtain CPI in an interim mutually agreed
                         to manner and in accordance with Section 3.2 of this
                         Attachment to facilitate the service order process.

               2.3.2.4 (Intentionally left blank for numbering consistency)

               2.3.2.5 U S WEST shall provide to Pac-West, upon request, a list
               of all current features and functions technically available from
               each switch, by switch CLLI. Notice of the introduction of new
               services shall be provided to Pac-West at least thirty (30) days
               in advance of their availability.

               2.3.2.6 (Intentionally left blank for numbering consistency)

               2.3.2.7 Pending or Held Orders: U S WEST shall provide, when
               available, the Pac-West information regarding a subscriber's
               previous pending or held orders. If the subscriber has a pending
               or held order, the status of the order shall not be negatively
               impacted as a result of the subscriber changing local service
               providers (i.e., due date for pending service chanced to later
               date).

               2.3.2.8 Special Construction: When U S WEST determines that
               special construction is required, U S WEST shall notify Pac-West
               on a timely basis of special construction requirements and
               charges, and obtain Pac-West authorization before beginning such
               construction.

        2.3.3  Pre-Ordering and Provisioning for Unbundling

               2.3.3.1 U S WEST shall provide to Pac-West, upon reasonable
               request, sufficient engineering design and layout information for
               Network Elements for specific applications.

               2.3.3.2 U S WEST shall provide to Pac-West, upon request, advance
              information of the details and requirements for planning and
              implementing NPA splits in accordance with NANP Guidelines.

              2.3.3.3 U S WEST shall make engineering support available to
              Pac-West as is normal and customary in the provision of
              Telecommunications Services, Network

                                     Page 7
<PAGE>

              Elemental Combinations or Ancillary Functions as described in this
              Agreement. Pac-West May request additional engineering support.

2.4      Pre-ordering Functions

         "Pre-Ordering" and "Ordering" encompasses the preliminary set of
         activities whereby a service representative interacts with the
         customer in order to obtain the information required to write a
         service order and consists of the following functions: verify an
         address, check service availability, reserve a telephone number,
         check for appointment availability, reserve an appointment and
         return customer service information. These functions are described
         as follows:

         2.4.1    Address Verification - Provides Pac-West with the ability to
                  query for and receive the customer service location, serving
                  central office, and facility indicators. The facilities
                  indicator will indicate the availability of facilities for one
                  (1 ) access line at the address, if the cable pair is
                  available or working. If the cable pair is working, an
                  indication of a pending disconnect order and the due date will
                  be provided. This function does not reserve cable pairs.

         2.4.2    Telephone Number Reservation - Provides Pac-West with the
                  capability to identify if one or more telephone numbers are
                  available and reserve them if available. This includes the
                  ability to reserve one or more specific numbers (vanity
                  numbers), a block of sequential or random block of numbers by
                  serving central office and/or NXX. If a work order is not
                  received within a negotiated amount of time, the reservation
                  will automatically expire.

         2.4.3    Appointment Availability and Reservation - Provides Pac-West
                  with the capability to determine the next available due date,
                  the availability of a specific date, an indication if the date
                  is available or a selection of the next available date, any
                  closed dates beyond that date, and reservation of an available
                  appointment.

         2.4.4    Service Availability - Allows Pac-West to determine the
                  availability of services and facilities to a specific
                  end-users' location(s). This capability indicates that the
                  service is available, that tariff rates apply, the amounts of
                  any additional recurring and nonrecurring costs, and the
                  interval to be used when ordering the service.

         2.4.5    Customer Service Information Request - Gives Pac-West the
                  ability to request a listing of existing services, features,
                  directory listing and equipment for a customer account.

         2.4.6    Circuit Identification Request - Provides Pac-West with the
                  capability to identify and obtain circuit identifications. If
                  a work order for a Circuit Identification Request is not
                  received within a negotiated amount of time, the request will
                  automatically expire.

3.        Ordering and Provisioning

     3.1      General Business Requirements

        3.1.1    Ordering and Provisioning Parity

                 U S WEST shall provide Pac-West with the same level of ordering
                 and provisioning support as U S WEST provides itself in
                 accordance with standards and performance measurements that U S
                 WEST uses and/or which are required by law, regulatory agency,
                 or by U S WEST's own internal procedures, whichever are the
                 most rigorous. These standards shall apply to the quality of
                 the technology, equipment, facilities,

                                     Page 8
<PAGE>

                 processes, and techniques (including, but not limited to, such
                 new architecture, equipment, facilities, and interfaces as U S
                 WEST may deploy) that U S WEST provides to Pac-West under this
                 Agreement.

        3.1.2    Interconnection Service Center (ISC)/Single Point of Contact

                 3.1.2.1 U S WEST shall provide a Systems Interface Help Desk or
                 equivalent which shall serve for all activities involved in the
                 electronic interface for ordering and provisioning of U S
                 WEST's unbundled Network Elements, features. functions, and
                 Resale Services. The Systems Interface Help Desk or equivalent
                 shall be available twenty-four (24) hours a day, seven (7) days
                 a week.

                 3.1.2.2 U S WEST shall provide a Single Point of Contact
                 ("SPOC") and shall provide to Pac-West toll-free nationwide
                 telephone numbers (available during U S WESTs scheduled work
                 hours) answered by competent, knowledgeable personnel, trained
                 to answer questions and resolve problems in connection with the
                 ordering and provisioning of unbundled Network Elements,
                 features, functions, capabilities, and Resale Services. U S
                 WEST will provide sufficient resources to provide equivalent,
                 or as otherwise agreed to by the Parties, service to Pac-West.

                 3.1-2.3 In addition to the electronic interfaces provided for
                 elsewhere in this Agreement, U S WEST shall provide, as
                 requested by Pac-West through the SPOC, provisioning and
                 dispatch in the form of coordinated scheduling, status, and
                 dispatch capabilities equivalent to that which U S WEST
                 provides itself or as otherwise agreed to by the Parties.

        3.1.3    Carrier Selection

                 3.1.3.1 For Services for Resale or unbundled Network Elements,
                 U S WEST shall provide to Pac-West, no later than January 1,
                 1997, the capability to order local service, intraLATA and
                 interLATA toll services by entering Pac-West subscribers choice
                 of carrier on a single order. U S WEST will offer other carrier
                 selection choices as they become available. U S WEST shall
                 provide Pac-West with the capability to order separate
                 interLATA and intraLATA carriers on a line or trunk basis where
                 1 + presubscription is available.

                 3.1.3.2 Where intraLATA 1+ presubscription is not available, or
                 if the subscriber does not select an intraLATA toll carrier, U
                 S WEST agrees to provide intraLATA toll services for resale to
                 Pac-West and to recognize the end user as the customer of
                 Pac-West for intraLATA toll. Pac-West shall designate the
                 default carrier for all other toll calls if the subscriber does
                 not select a carrier. In all cases, U S WEST will route toll
                 calls to the appropriate carrier as designated by Pac-West

        3.1.4    Notification to Long Distance Carrier

                 3.1.4.1 U S WEST will not accept PIC change requests through
                 the CARE process for Pac-West local service customers.
                 Pac-Wests long distance operations may obtain such CARE
                 transactions for Pac-West long distance customers from the
                 customer's local service provider. U S WEST agrees to notify
                 IXCs using OBF approved CARE transactions, whenever an IXC
                 Customer who is provided local service through Services for
                 Resale, INP/NP, or unbundled Network Elements changes PIC
                 status.

                 3.1.4.2 U S WEST shall implement new Transaction Code Status
                 Indicators (TCSIs) 2033, 2233, 3147, and 3148. The new local
                 service provider identification ("LSPID") will

                                     Page 9
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                 be included on these transactions if the new local resale
                 provider agrees U S WEST should provide the information to a
                 long distance provider as defined by the OBF in support of
                 Local Resale.

                 3.1.4.3 U S WEST shall implement TCSIs used in conjunction with
                 the new local service provider ("LSP") identification code for
                 handling account maintenance, customer service, and trouble
                 administration issues. These TCSIs include 4001/021/05.
                 4201-4205, 4301, 2033, 2233, 3147, 3148, 3149, and others as
                 the OBF may define.

                      3.1.4.3.1 In addition, U S WEST shall implement TCSIs,
                      when available, used in conjunction with the new Ported
                      Telephone Number field to link "shadow" and parted
                      telephone numbers in support of Interim Number
                      Portability. These TCSIs include 2231, 3150, 3151, and
                      others as the OBF may define.

        3.1.5 Ordering Interconnection

              The Parties agree to utilize the OBF-ASR process for ordering
              interconnection trunks, which is the same process used to order
              Access Services. When the ordering Party requests facilities,
              routing, or optional features different than those determined to
              be available, the Parties will work cooperatively in determining
              an acceptable configuration based on available facilities,
              equipment and routing plans.

3.2      Service Order Process Requirements

        3.2.1 OBF Compliance

              3.2.1.1 U S WEST and Pac-West shall generally follow the
              OBF-developed ordering and provisioning process guidelines. These
              processes include, but are not limited to, pre-order service
              inquiry, pre-order service inquiry response, firm order,
              acknowledgment/rejection, firm order confirmation, delay
              notification, and completion notification. U S WEST agrees to work
              cooperatively to generally comply with future OBF developed
              guidelines.

        3.2.2 Service Migrations and New Customer Additions

                 3.2.2.1 For Resale Services, U S WEST shall not require a
                 disconnect order from a Customer, another local service
                 provider, or any other entity, to process an Pac-West order to
                 establish Pac-West local service and/or migrate a Customer to
                 Pac-West local service.

                 3.2.2.2 For Resale Services, U S WEST shall not disconnect any
                 Customer service or existing features available under this
                 Agreement at any time during the migration of that Customer to
                 Pac-West service without Pac-Wests prior agreement.

                 3.2.2.3 For services provided through unbundled Network
                 Elements, U S WEST shall recognize Pac-West as an agent for the
                 Customer in coordinating the disconnection of services provided
                 by another CLEC or U S WEST.

                 3.2.2.4 Unless otherwise directed by Pac-West, when Pac-West
                 orders Resale Services or Network Elements all trunk or
                 telephone numbers currently associated with existing services
                 shall be retained without loss of feature capability and
                 without loss of associated ancillary services including, but
                 not limited to, Directory Assistance and

                                    Page 10
<PAGE>

                 911/E911 capability for those services or features which U S
                 WEST controls and which are available under this Agreement.

                 3.2.2.5 For Customer conversions requiring coordinated cut-over
                 activities. U S WEST and Pac-West will agree on a scheduled
                 conversion time(s), which will be a designated two-hour time
                 period within a designated date. Unless expedited, U S WEST and
                 Pac-West shall schedule the cut-over window at least
                 forty-eight (48) hours in advance. and as part of the
                 scheduling, U S WEST shall estimate for Pac-West the duration
                 of any service interruption that the cut-over might cause. The
                 cut-over time will be defined as a thirty (30) minute window
                 within which both the Pac-West and U S WEST personnel will make
                 telephone contact to complete the cut-over.

                         3.2.2.5.1 U S WEST will coordinate activities of all U
                         S WEST work groups involved with the conversion. This
                         coordination will include, but not be limited to, work
                         centers charged with manual cross-connects, electronic
                         crossconnect mapping, and switch translations
                         (including, but not limited to. implementation of
                         Interim Number Portability translations).

                         3.2.2.5.2 As soon as possible, but in no event later
                         than one (1) hour after completion, U S WEST will
                         notify Pac-West when coordinated cut-over is complete.

                         3.2.2.5.3 End user service interruption shall not
                         exceed twenty (20) minutes during any cut-over. The
                         average interruption caused by the cut-over of Pac-West
                         Customers shall not exceed ten (10) minutes. If any
                         service interruption is to exceed twenty (20) minutes,
                         however, U S WEST will immediately notify Pac-West of
                         such delay.

                         3.2.2.5.4 Within the appointed thirty (30) minute
                         cut-over time, the U S WEST personnel will call the
                         Pac-West personnel designated to perform
                         crossconnection work and when the U S WEST person is
                         reached in that interval such work will be promptly
                         performed. If the Pac-West person is not ready within
                         the appointed interval, and if Pac-West had not called
                         to reschedule the work at least two (2) hours prior to
                         the start of the interval, U S WEST and Pac-West will
                         reschedule the work order and Pac-West will pay the
                         nonrecurring installation charge for the unbundled
                         loops scheduled for the missed appointment. In
                         addition, non-recurring installation charges for the
                         rescheduled appointment will apply. If the U S WEST
                         person is not available or not ready at any time during
                         the thirty (30) minute interval, Pac-West and U S WEST
                         will reschedule and U S WEST will waive the
                         non-recurring charge for the unbundled loops scheduled
                         for that interval. If unusual or unexpected
                         circumstances prolong or extend the time required to
                         accomplish the coordinated cut-over, the Party
                         responsible for such circumstances is responsible for
                         the reasonable labor charges of the other Party. Delays
                         caused by the customer are the responsibility of
                         Pac-West. In addition, if Pac-West has ordered INP as a
                         part of the unbundled loop installation, U S WEST will
                         coordinate implementation of INP with the unbundled
                         loop installation.

                 3.2.2.6 Service Order: U S WEST shall provide Pac-West the
                 capability to issue a service order for unbundled Network
                 Elements, Combinations, and Resale Services.

                                    Page 11
<PAGE>

                 3.2.2.7 PLOC Changes: U S WEST shall provide Pac-West the
                 capability to transfer a customer with no feature changes to
                 Pac-West through a streamlined PLOC (Primary Local Carrier)
                 transfer process.

                 3.2.2.8 Status: U S WEST shall provide the Pac-West status on a
                 service order when the status of the order changes.

                 3.2.2.9 Modifies: U S WEST shall provide Pac-West the
                 capability to modify the service order any time after it has
                 been issued; however, U S WEST may require the issuance of a
                 supplemental or change order.

                 3.2.2.10 Cancel: US WEST shall provide Pac-West the capability
                 to cancel the service order any time after it has been issued.

                 3.2.2.11 Coordinated Service Orders: U S WEST shall provide
                 Pac-West the capability to relate coordinated services orders,
                 and identify those service orders that require coordination
                 with Pac-West, or the subscriber, or the subscriber's vendor.
                 When so identified, U S WEST will follow any specific
                 instructions indicated on the service order so that the
                 subscriber's service is not negatively affected by the service
                 turn-up activity.

                 3.2.2.12 Expedite Process: U S WEST and Pac-West shall mutually
                 develop expedite procedures to be followed when Pac-West
                 determines an expedite is required to meet subscriber service
                 needs.

                 3.2-2.13 Expedites: U S WEST shall provide Pac-West the
                 capability to expedite a service order. Within two (2) business
                 hours after a request from Pac-West for an expedited order, U S
                 WEST shall notify Pac-West of U S WEST's confirmation to
                 complete, or not complete, the order within the expedited
                 interval.

        3.2.3 Intercept Treatment and Transfer of Service Announcements

                 3.2.3.1 U S WEST shall provide unbranded intercept treatment
                 and transfer of service announcements to Pac-West Customers. U
                 S WEST shall provide such treatment and transfer of service
                 announcement for all service disconnects, suspensions, or
                 transfers, in the Same manner as that which U S WEST provides
                 to its own end users. U S WEST current standard time periods
                 for providing such announcements is three (3) months for
                 residential service and twelve (12) months for business
                 service. Pac-West may request extensions at parity with that
                 which U S WEST provides to its end-users.

                 3.2.3.2 Pursuant to this Agreement, Pac-West shall provide
                 unbranded intercept treatment and transfer of service
                 announcements to U S WEST Customers. Pac-West shall provide
                 such treatment and transfer of service announcement for all
                 service disconnects, suspensions, or transfers, at panty with
                 that which Pac-West provides to its own end users. Pac-West
                 standard time periods for providing such announcements is three
                 (3) months for residential service and twelve (12) months for
                 business service. U S WEST may request extensions at panty with
                 that which Pac-West provides to its end-users.

                                    Page 12
<PAGE>

        3.2.4 Due Date

                3.2.4.1 U S WEST and Pac-West shall mutually agree on what
                services and circumstances are subject to the standard interval
                process *to determine the due date or the requested/committed
                due date process.

                3.2.4.2 For those services and circumstances that U S WEST and
                Pac-West agree shall be handled by the standard interval
                process, U S WEST shall supply Pac-West with standard due date
                intervals on a nondiscriminatory basis to be used by Pac-West
                personnel to determine service installation dates. Under those
                circumstances U S WEST shall complete the provisioning within
                the standard interval.

                         3.2.4.2.1 If Pac-West requests a due date earlier than
                         the standard due date interval, then expedite charges
                         may apply.

                3.2.4.3 For those services and circumstances that U S WEST and
                Pac-West agree shall be handled by the requested/committed due
                date process, Pac-West may request a due date on each order. U S
                WEST will provide an offered due date on a nondiscriminatory
                basis. If Pac-West accepts the offered due date then such date
                shall become the committed due date. U S WEST will complete the
                order on the committed due date unless otherwise authorized by
                Pac-West.

                         3.2.4.3.1 If Pac-West requires a due date earlier than
                         the U S WEST offered due date and U S WEST agrees to
                         meet the Pac-West required due date, then that required
                         due date becomes the committed due date and expedite
                         charges may apply.

                3.2.4.4 Subsequent to an initial order submission, Pac-West may
                request a new/revised due date that is earlier than the
                committed due date. If U S WEST agrees to meet that new/revised
                due date, then that new/revised due date becomes the committed
                due date and expedite charges may apply.

                3.2.4.5 Any special or preferred scheduling options available,
                internally or externally, to U S WEST for ordering and
                provisioning services shall also be available to Pac-West.

        3.2.5   Customer Premises Inspections and Installations

                3.2.5.1 Pac-West shall perform or contract for all needs
                assessments, including equipment and installation requirements,
                at the Customer premises.

                3.2.5.2 U S WEST shall provide Pac-West with the ability to
                schedule dispatches for work under this Agreement

                3.2.5.3 U S WEST shall provide, at Pac-West's request, extended
                demarcation beyond the NID using intrabuilding riser and lateral
                beyond the NID. This provision shall not require U S WEST to
                provide inside wire.

        3.2.6   Firm Order Confirmation (FOC)

                3.2.6.1 U S WEST shall provide to Pac-West, via an electronic
                interface, a Firm Order Confirmation ("FOC") for each Pac-West
                order. The FOC shall contain on a per line and/or trunk basis an
                enumeration of Pac-West ordered unbundled Network Elements (and
                the specific U S WEST naming convention applied to that Network

                                    Page 13
<PAGE>

                Element or Combination), features. functions, Resale Services.
                options, physical interconnection, quantity, and U S WEST
                committed due date for order completion.

                3.2.6.2 For a revised FOC, U S WEST shall provide order detail
                on a per line or per trunk level basis as well as the order
                detail from the prior FOC.

        3.2.7  Order Rejections

               3.2.7.1 U S WEST shall reject and return to Pac-West any order
               that U S WEST cannot provision, due to technical reasons, missing
               information, or jeopardy conditions in accordance with
               Performance Measurements as defined herein. When an order is
               rejected, U S WEST shall, in its rejection notification,
               specifically describe ail of the reasons for which the order was
               rejected. U S WEST shall not reject any orders on account of the
               requested due date.

               3.2.7.2 On an exception basis, to the extent that errors cannot
               be corrected pursuant to electronic interface processes, U S WEST
               agrees to accept verbal order corrections from Pac-West. U S WEST
               shall timely inform Pac-West by telephone of any minor issues
               which can be handled over the phone. As required. Pac-West will
               provide a supplemental order reflecting changes to the original
               service order.

        3.2.8  Service Order Changes

               3.2.8.1 If an installation or other Pac-West-ordered work request
               requires a change from the original Pac-West service order in any
               manner, U S WEST shall call Pac-West in advance of performing the
               installation or other work to obtain authorization. U S WEST
               shall then provide Pac-West an estimate of additional labor hours
               and/or materials. After all installation or other work is
               completed, U S WEST shall notify Pac-West of actual labor hours
               and/or materials used in accordance with regular service order
               completion schedules.

                         3.2.8.1.1 If additional work is completed an a service
                         order, as approved by Pac-West, the cost of the
                         additional work must be reported to Pac-West in
                         accordance with regular service order Completion
                         schedules.

                         3.2.8.1.2 If a service order is partially completed,
                         notification must identify the work that was done and
                         the work remaining to be completed.

               3.2.8.2 If an Pac-West Customer requests a service change at the
               time of installation or other work being performed by U S WEST on
               behalf of Pac-West, U S WEST, while at the Customer premises,
               shall direct the Pac-West Customer to contact Pac-West so as to
               avoid unnecessary delays in service activation should the U S
               WEST representative leave Customer premises prior to completing
               the installation.

        3.2.9  Jeopardy Situations

               To the extent jeopardy information is available, U S WEST shall
               provide to Pac-West notification of any jeopardy situations prior
               to the committed due date, missed appointments and any other
               delay or problem in completing work specified on Pac-West service
               order as detailed on the FOC, in accordance with the Performance
               Measurements as defined herein.

                                    Page 14
<PAGE>

        3.2.10 Cooperative Testing

               3.2.10.1 Network Testing

                         3.2.10.1.1 To the extent that U S WEST provides testing
                         for services offered to its end users and to the extent
                         U S WEST provides testing for Itself, U S WEST shall
                         perform ail pre-service testing prior to the completion
                         of the Pac-West order. including testing on local
                         service facilities and switch translations, including,
                         but not limited to, verification of features,
                         functions. and services ordered by Pac-West.

                         3.2.10.1.2 The Parties agree to cooperate in testing
                         that is required to complete service orders.

               3.2.10.2 Systems and Process Testing

                         3.2.10.2.1 Upon Pac-West's request, U S WEST shall
                         cooperate with Pac-West to ensure that all operational
                         interfaces and processes are in place and functioning
                         properly and efficiently. Testing shall simulate actual
                         operational procedures and systems interfaces to the
                         greatest extent possible. Pac-West may request
                         cooperative testing to ensure service performance,
                         reliability, and Customer service ability.

               3.2.11 Service Suspensions/Restorations

                    3.2.11.1 For services other than non-switched, upon
                    Pac-West's request through a Suspend/Restore Order, U S WEST
                    shall suspend or restore the functionality of any Network
                    Element, feature, function, or Resale Service. U S WEST
                    shall provide restoration priority on a per Network Element
                    or Combination basis in a manner that conforms with Pac-West
                    requested priorities and any applicable regulatory rules and
                    regulations or government requirements.

                    3.2.12 Disconnects

                    3.2.12.1 U S WEST shall provide to Pac-West daily
                    information in a mutually agreed upon formal: notifying
                    Pac-West of any services disconnected from Pac-West This
                    report will itemize a chance in local service provider or
                    outward line movement on service order activity.

               3.2.13 Order Completion Notification

                    3.2.13.1 Upon completion of a service order by U S WEST in
                    its system(s), U S WEST shall submit to Pac-West an order
                    completion which details the work performed (including a
                    list of features and functions installed), the date
                    completed, charges associated with the order, and
                    verification of accurate service completion. Notification
                    shall be provided in accordance with mutually agreed upon
                    intervals.

               3.2.14 (Intentionally left blank for numbering consistency)

               3.2.15 Specific Unbundling Requirements

                      3.2.15.1 Pac-West may order and U S WEST shall provision
                      unbundled Network Elements either individually or in any
                      combination on a single

                                    Page 15
<PAGE>

                      order. Network Elements ordered as combined shall be
                      provisioned as combined.(2)

                      3.2.15.2 Prior to providing service in a specific
                      geographic area or when Pac-West requires a change of
                      network configuration, Pac-West may elect to place an
                      order with U S WEST requiring U S WEST to prepare Network
                      Elements and switch translations in advance of orders for
                      additional Network Elements from Pac-West.

                      3.2.15.3 When Pac-West orders combinations of currently
                      connected Network Elements, U S WEST shall ensure that
                      such Network Elements remain connected and functional
                      without any disconnection or disruption.

                      3.2.15.4 Order combinations of contiguous Network Elements
                      shall be available to be ordered (i) on a case-by-case
                      basis for those Network Elements that are Customer
                      specific; or (ii) on a common-use (non-end user specific)
                      basis for those Network Elements that are shared by
                      multiple Customers.

                      3.2.15.5 Individual Network Elements shall be identified
                      and ordered by Pac-West so that they can be provisioned
                      together.

                      3.2.15.6 U S WEST shall provide technical assistance to
                      Pac-West with respect to unbundled Network Elements
                      pursuant to Section 2.3.3.3 of this Attachment.

                      3.2.15.7 Each order for Network Elements will contain
                      administration, bill, contact, and Customer information,
                      as defined by the OBF.

                      3.2.15.8 When ordering unbundled switch ports, Pac-West is
                      requested to specify the desired signaling (e.g. loop
                      start, ground start or loop reverse battery options).

                              3.2.15.8.1 To the extent Pac-West requires an
                              unbundled loop to provide ISDN, HDSL, ADSL, DS1
                              service or other channel performance options, such
                              requirements will be identified on the order for
                              unbundled loop service.

                              3.2.15.8.2 The actual loop facilities provided may
                              utilize various technologies or combinations of
                              technologies. Basic unbundled loops provide an
                              analog facility to Pac-West

               3.2.16 (intentionally left blank for numbering consistency.)

               3.2.17 Ordering and Maintenance

                      3.2.17.1 For the purpose of ordering unbundled Network
                      Elements or Combinations, Pac-West shall provide a blanket
                      letter of authorization to U S WEST indicating that it
                      shall be duly authorized by its customer to process such
                      service orders.

                      3.2.17.2 If there is a conflict between an end user
                      (and/or its respective agent) and Pac-West regarding the
                      disconnection or provision of unbundled Network Elements
                      or Combinations, U S WEST will honor the latest dated
                      proof of authorization designating an agent by the end
                      user or its respective agent. Compensation for
                      unauthorized disconnections or transfers shall be in
                      accordance with Section 258 of the Act or by Commission
                      rule.

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                                    Page 16
<PAGE>

                      3.2.17.3 Pac-West has primary responsibility for its own
                      end user base and will have the responsibility for
                      resolution of any service trouble report(s) from its
                      customers. U S WEST will work cooperatively with Pac-West
                      to resolve trouble reports when the trouble condition has
                      been isolated and found to be within a portion of U S
                      WEST's network. Where available, Pac-West must provide to
                      U S WEST switch-based test results when testing its
                      customer's trouble prior to U S WEST performing any repair
                      functions. The Parties will cooperate in developing
                      mutually acceptable test reports.

                      3.2.17.4 In the event of a transfer of the end user's
                      service for unbundled Network Elements from one provider
                      to Pac-West, Pac-West shall issue a request for transfer
                      of service to U S WEST and the provider from whom the
                      service is being transferred. In the event of a transfer
                      of the end user's service for unbundled Network Elements
                      from Pac-West to another provider, Pac-West shall submit
                      to U S WEST a disconnect order for such unbundled Network
                      Elements or Combinations to facilitate the cessation of
                      billing by U S WEST. The Parties agree to develop
                      procedures to handle the transfer of an end user service
                      from one provider to another.

                      3.2.17.5 (intentionally left blank for numbering
                      consistency)

                      3.2.17.6 When ordering unbundled loops, Pac-West is
                      responsible for obtaining or providing facilities and
                      equipment that are compatible with the loop.

                      3.2.17.7 To the extent a U S WEST-provided unbundled loop
                      is provisioned without U S WEST provided unbundled
                      switching, Pac-West will have responsibility for testing
                      the unbundled loop. If, at Pac-Wests request, U S WEST
                      must dispatch to perform tests on an unbundled loop, and
                      the fault is not in U S WEST facilities, a charge may
                      apply.

                      3.2.17.8 To the extent a U S WEST provided unbundled loop
                      is provisioned without unbundled U S WEST-provided
                      unbundled switching, Pac-West will be responsible for
                      providing the Pac-West switch interface, if applicable, on
                      the U S WEST MDF interface to facilitate plant test

3.3      Systems Interfaces and Information Exchanges

         3.3.1    (intentionally left blank for numbering consistency)

         3.3.2    Permanent Access to Systems Interfaces

                  (Intentionally left blank for numbering consistency)

         3.3.3    Ordering and Provisioning for Resale Services

                  (Intentionally left blank for numbering consistency)

         3.3.4    Ordering and Provisioning for Unbundling

                  (intentionally left blank for numbering consistency)

                                    Page 17
<PAGE>

3.4 Standards

     3.4.1 General Requirements

              3.4.1.1 Pac-West and U S WEST shall agree upon the appropriate
              ordering and provisioning codes to be used for each Network
              Element or Combinations thereof These codes shall apply to all
              aspects of the unbundling of that Network Element or Combination
              of Network Elements and shall be known as data elements as defined
              by the Telecommunications Industry Forum Electronic Data
              Interchange Service Order Subcommittee (TCIF-EDI-SOSC), or as
              mutually agreed.

3.5 Performance Measurements and Reporting

     3.5.1  Cycle Time Measurements

            (Deleted per Arbitrator's Recommendations)(3)

     3.5.2  Quality Measurements

            (Deleted per Arbitrator's Recommendations)(4)

     3.5.3  Reporting

            (Deleted per Arbitrator's Recommendations)(5)

4.       Connectivity Billing and Recording

This Section 4 describes the requirements for U S WEST to bill and record all
charges Pac-West incurs for purchasing services under this Agreement.

4.1 Procedures

    4.1.1    The Parties recognize that deviations and discrepancies may occur
             from the various industry standards and other standards referenced
             in this Agreement. Subject to such discrepancies and deviations, U
             S WEST shall comply with these various standards. Discrepancies and
             deviations will be documented and reviewed.

             4.1.1.1 Within forty-five (45) days after the Effective Date of
             this Agreement, the Parties will develop processes by which U S
             WEST will inform Pac-West of deviations from standards for billing.
             The Parties agree that they will negotiate discrepancies and
             deviations in good faith. Further, the Parties agree that those
             documented deviations from such standards documented by U S WEST to
             Pac-West shall supersede sections of technical standards applicable
             to such deviations referenced in this Agreement.

    4.1.2    U S WEST shall record and bill in accordance with this Agreement
             those charges Pac-West incurs as a result of Pac-West purchasing
             from U S WEST services, as set forth in this Agreement (hereinafter
             "Connectivity Charges").

----------

3  Per Recommendations at page 28, Issue 149.
4  Per Recommendations at page 28, Issue 149.
5  Per Recommendations at page 28, Issue 149.

Page 18
<PAGE>

4.1.3    U S WEST shall format each bill for Connectivity Charges (hereinafter
         "Connectivity Bill") in accordance with the CRIS, CABS or SECAB
         standard as appropriate to the services billed.

4.1.4    Each service purchased by Pac-West shall be assigned a separate and
         unique billing code or identifier in the form agreed to by the Parties
         and such code or identifier shall be provided to Pac-West on each
         Connectivity Bill in which charges for such services appear. Each such
         billing code or identifier shall enable Pac-West to identify the
         service as purchased by Pac-West.

4.1.5    Each Connectivity Bill shall set forth the quantity and description of
         each such service provided and billed to Pac-West. All Connectivity
         Charges billed to Pac-West shall indicate the state from which such
         charges were incurred.

4.1.6    U S WEST shall bill Pac-West for each service supplied by U S WEST to
         Pac-West pursuant to this Agreement at the rates set forth in
         Attachment 1 to this Agreement.

4.1.7    U S WEST shall bill Pac-West for the Connectivity Charges incurred;
         provided, however, that for those usage-based Connectivity Charges
         where actual charge information is not determinable by U S WEST because
         the jurisdiction (i.e., interstate, interstate/interLATA, intrastate,
         intrastate/ intraLATA. local) of the traffic is unidentifiable, or for
         any other reason, the Parties shall jointly develop a process to
         determine the appropriate charges.

4.1.8    Measurement of usage-based Connectivity Charges shall be in actual
         conversation seconds. For local Interconnection traffic provided under
         Attachments 3 and 4 of this Agreement, the total conversation time per
         chargeable traffic types shall be totaled for the entire monthly bill
         cycle, rounded to the next whole minute and then billed at the contract
         rate. For Resale Services provided under Attachment 2 of this Agreement
         the total conversation time shall be measured in accordance with U S
         WESTs retail tariff and billed at the contract rate.

4.1.9    U S WEST shall provide to Pac-West at no additional charge a Single
         Point of Contact for handling any Connectivity Billing questions or
         problems that may arise during the implementation and performance of
         the terms and conditions of this Agreement.

4.1.10   U S WEST shall provide a Single Point of Contact for the handling of
         any data exchange questions or problems that may arise during the
         implementation and performance of the terms and conditions of this
         Agreement.

4.1.11   As soon as possible after the Effective Date of this Agreement, each
         Party shall provide the other Party written notice of which form of the
         monthly Connectivity Bill is to be deemed the official bill to assist
         the Parties in resolving any conflicts that may arise between the
         official bill and another form of bill received via a different media
         which purportedly contains the same charges as are on the official
         bill.

4.1.12   If either Party requests an additional copy(ies) Of 2 bill, such Party
         shall pay the other Party a reasonable fee per additional bill copy,
         unless such copy was requested due to errors, omissions, or corrections
         or the failure of the transmission to comply with the specifications
         set forth in this Agreement.

4.1.13   When sending Connectivity Bills via electronic transmission, to avoid
         transmission failures or the receipt of Connectivity Billing
         information that cannot be processed, Pac

                                    Page 19
<PAGE>

         West shall provide U S WEST process specifications. U S WEST shall
         comply with mutually agreed upon processing specifications when U S
         WEST transmits Connectivity Billing data to Pac-West. Pac-West shall
         provide to U S WEST notice if a Connectivity Billing transmission is
         received that does not meet mutually agreed-upon Pac-West
         specifications. Faulty or failed transmissions shall be corrected and
         resubmitted to Pac West, at U S WESTs sole expense.

4.1.14   U S WEST shall deliver to a location specified by Pac-West, billing
         information via Connect: Direct, magnetic tape or paper, as agreed to
         by Pac-West and U S WEST. In the event of an emergency, system failure
         or other such condition which prevents U S WEST from transmitting via
         Connect:Direct, U S WEST shall notify Pac-West of such difficulties
         within two (2) hours of detection. U S WEST shall deliver to a location
         specified by Pac-West billing information via magnetic tape or paper.
         as agreed to by Pac-West and U S WEST. The Parties acknowledge that all
         tape's transmitted to the other Party via U.S. Mail or overnight
         delivery service and which contain Connectivity Billing data shall not
         be returned to the sending party.

4.1.15   (Intentionally left blank for numbering consistency)

4.1.16   Billed amounts which are being reasonably disputed or reasonably
         queried, or for which reasonable claims have been filed, are not due
         for payment until such disputes, claims or queries have been fully
         resolved by both Pac-West and U S WEST.

4.1.17   (Intentionally left blank for numbering consistency)

4.1.18   Bill Reconciliation

         4.1.18.1      Each Party agrees to notify the other Party upon the
                       discovery of a billing discrepancy ("Notice of
                       Discrepancy").

         4.1.18.2      In the event of such Notice of Discrepancy, the Parties
                       shall endeavor to resolve the discrepancy within sixty
                       (60) calendar days after the Notice of Discrepancy is
                       issued using normal business procedures. If the
                       discrepancy is disputed, resolution of such dispute is
                       expected to occur at the first level of management
                       resulting in a recommendation for settlement of the
                       dispute and closure of a specific billing period.

         4.1.18.3      Closure of a specific billing period shall occur by joint
                       agreement of the Parties whereby the Parties agree that
                       such billing period is closed to any further analysis and
                       financial transactions, except those resulting from an
                       Audit Closure shall take place within nine (9) months of
                       the Bill Date. The month being closed represents those
                       Connectivity Charges that were billed or should have been
                       billed by the applicable bill date.

         4.1.18.4      If the dispute is not resolved within the allotted time
                       frame, the following resolution procedure shall begin:

                       4.1.18.4.1   If the dispute is not resolved within sixty
                                    (60) days of the Notice of Discrepancy, the
                                    dispute shall be escalated to the second
                                    level of management for resolution.

                                    Page 20
<PAGE>

                      4.1.18.4.2    If the dispute is not resolved within ninety
                                    (90) days of Notice of Discrepancy, the
                                    dispute shall be escalated to the third
                                    level of management for resolution.

                      4.1.18.4.3    If the dispute is not resolved within one
                                    hundred and twenty (120) days of the Notice
                                    of Discrepancy, upon the written request of
                                    either Party within such one hundred and
                                    twenty (120) day period, the dispute may be
                                    resolved pursuant to the dispute resolution
                                    process set forth in Part A of this
                                    Agreement.

4.1.19   U S WEST shall reimburse Pac-West for incorrect Connectivity Billing
         charges. including, without limitation: overcharges. services ordered
         or requested but not delivered, interrupted services, services of poor
         quality and installation problems, if such problems are caused by U S
         WEST. Such reimbursements shall be set forth in the appropriate section
         of the Connectivity Bill pursuant to appropriate standards.

4.1.20   The Parties agree to record call information in accordance with this
         Section 4. 1. To the extent technically feasible, each Party shall
         record all call detail information associated with every call that one
         Party bills to the other Party. Pac-West may request, through the BFR
         process the recording of call records and/or call detail information
         that is not currently recorded by U S WEST. These records shall be
         provided and retained pursuant to Section 5 of this Attachment.

4.1.21   When Pac-West collocates with U S WEST in U S WESTs facility as
         described in this Agreement, capital expenditures (e.g., costs
         associated with building the "cage"), shall not be included in the
         Connectivity Bill provided to Pac-West pursuant to this Attachment 5.
         All such capital expenses shall be given a unique BAN and invoice
         number. All invoices for capital expenses shall be sent to the location
         specified by Pac-West for payment. All other non-capital recurring
         collocation expenses shall be billed to Pac-West in accordance with
         this Agreement. The CABS/SECABS Billing Output Specifications (BOS)
         documents provide the guidelines on how to bill the Connectivity
         Charges associated with collocation.

4.1.22   Local Number Portability

         4.1.22.1    In accordance with the terms and conditions set forth in
                     this Agreement, U S WEST shall record and provide to
                     Pac-West all detail information associated with an
                     alternately billed call to an Pac-West local exchange
                     customer whose telephone number has been ported from U S
                     WEST under INP as further described in this Agreement.

4.1.23 Meet Point Billing

         4.1.23.1    Pac-West and U S WEST will establish meet-point billing
                     ("MPB") arrangements in accordance with the Meet Point
                     Billing guidelines adopted by and contained in the OBF's
                     MECAB and MECOD documents, except as otherwise mutually
                     agreed to by the Parties. Both Parties will use their best
                     reasonable efforts, individually and collectively, to
                     maintain provisions in their respective federal and state
                     access tariffs, and/or provisions within the National
                     Exchange Carrier Association (NECA) Tariff No. 4, or any
                     successor tariff to reflect the MPB arrangements identified
                     in this Agreement, in MECAB and in MECOD.

                                    Page 21
<PAGE>

          4.1.23.2   The Parties will agree on a meet point percentage to enable
                      the joint provisioning and billing of Switched Access
                      Services to third parties in conformance with the Meet
                      Point Billing guidelines adopted by and contained in the
                      OBF's MECAB and MECOD documents and referenced in U S
                      WEST's Switched Access Tariffs. The Parties understand
                      and agree that MPB arrangements are available and
                      functional only to/from IXCs who directly connect with the
                      tandem(s) that Pac-West sub-tends in each LATA.

          4.1.23.3    The Parties will use reasonable efforts. individually and
                       collectively, to maintain provisions in their respective
                       federal and state access tariffs, and/or provisions
                       within the National Exchange Carder Association (NECA)
                       Tariff No. 4, or any successor tariff, sufficient to
                       reflect this MPB arrangement, including MPB percentages.

           4.1.23.4    Pac-West and U S WEST will implement the "Multiple
                       Bill/Single Tariff" option in order to bill any
                       interexchange carrier (IXC) for that portion of the
                       network elements provided by Pac-West and U S WEST. For
                       all traffic carried over the MPB arrangement, Pac-West
                       and U S WEST shall bill IXCs for all applicable elements
                       at the rates specified in their respective tariffs.

           4.1.23.5    U S WEST shall provide to Pac-West the billing name,
                       billing address, and carrier identification code (CIC) of
                       the IXCs that may utilize any portion of Pac-West network
                       in an Pac-West/U S WEST MPB arrangement in order to
                       comply with the MPB notification process as outlined in
                       the MECAB document. Such information shall be provided to
                       Pac-West in the format and via the medium that the
                       Parties agree. If U S WEST does not have a CIC for any
                       IXC that will utilize a portion of Pac-West network in an
                       Pac-West/U S WEST MPB arrangement, and for whom U S WEST
                       must supply to Pac-West MPB billing information, then
                       until such carrier has obtained a CIC, U S WEST will
                       submit the LEC's CIC on those MPB records provided to
                       Pac-West for MPB. U S WEST understands and agrees that it
                       will be solely responsible for obtaining any
                       reimbursements from such carriers who have utilized the
                       jointly provided networks of U S WEST and Pac-West

           4.1.23.6    U S WEST and Pac-West agree that in an MPB arrangement
                       where one Party provides local transport and the other
                       Party provides the end office switching, the Party who
                       provides the end office switching is entitled to bill any
                       residual interconnection charges (RIC) and common carrier
                       line (CCL) charges associated with the traffic. The
                       Parties further agree that in those MPB situations where
                       one Party sub-tends the other Party's access tandem, the
                       Party providing the access tandem in only entitled to
                       bill the access tandem fee and any associated local
                       transport charges. The Parties also agree that the Party
                       who provides the end office switching is entitled to bill
                       end office switching fees, local transport charges, RIC
                       and CCL charges, as appropriate, and such other
                       applicable charges.

           4.1.23.7    U S WEST and Pac-West will record and transmit MPB
                       information in accordance with the standards and in the
                       format set forth in this Attachment. U S WEST and
                       Pac-West will coordinate and exchange the billing account
                       reference ("BAR") and billing account cross reference
                       (BACR) numbers for the MPB arrangements described in this
                       Agreement. Each Party will notify the

                                    Page 22
<PAGE>

                       other if the level of billing or other BAR/BACR elements
                       change. resulting in a new BAR/BACR number.

            4.1.23.8   If MPB data is not processed and delivered by either U S
                       WEST or Pac-West and sent to the other Party within ten
                       (10) calendar days of the relevant recording period and
                       in turn such Party is unable to bill the IXC for the
                       appropriate charges, the Party who failed to deliver the
                       data will be held liable for the amount of the unbillable
                       charges.

            4.1.23.9   If MPB data is not submitted within ten (10) calendar
                       days of the relevant recording period or is not in the
                       proper format as set forth in this Agreement, and if as a
                       result the other Party is delayed in billing the IXC for
                       the appropriate charges it incurs, the delaying Party
                       shall pay the other Party a late MPB data delivery charge
                       which will be the total amount of the delayed charges
                       times a monthly rate that shall not exceed 1.5% which may
                       be levied by law for commercial transactions, compounded
                       daily for the number of days from the date the MPB
                       charges should have been received to and including the
                       date the MPB charge information is actually received.

            4.1.23.10  Errors in MPB data exchange by the Parties may be
                       discovered by Pac-West, U S WEST or the billable IXC.
                       Both Pac-West and U S WEST agree to provide the other
                       Party with notification of any discovered errors within
                       two (2) Business Days of the discovery. The other Party
                       shall correct the error within eight (8) Business Days of
                       notification and resubmit the data. In the event the
                       errors cannot be corrected within the time period
                       specified above, the erroneous data shall be considered
                       lost If MPB data is lost due to uncorrectable errors or
                       otherwise, the Parties shall follow the procedures set
                       forth in Section 5 of this Attachment 5 and compensate
                       the other for the lost MPB billing data.

            4.1.23.11  In the event Pac-West purchases from U S WEST Network
                       Elements, or Combination thereof, in a LATA other than
                       the LATA to or from which the MPB services are homed and
                       in which U S WEST operates an access tandem, U S WEST
                       shall, except in instances of capacity limitations,
                       permit and enable Pac-West to sub-tend the U S WEST
                       access tandem switch(es) nearest to the Pac-West rating
                       point(s) associated with the NPA-NXX(s) to/from which the
                       MPB services are homed. In such event, Pac-West shall be
                       responsible for the transport facilities crossing LATA
                       boundaries. In instances of capacity limitation at a
                       given access tandem switch, Pac-West shall be allowed to
                       subtend to the next nearest U S WEST access tandem switch
                       in which sufficient capacity is available. The MPB
                       percentages for each new rating point/access tandem pair
                       shall be calculated in accordance with MECAB and MECOD.

4.2      Information Exchange and Interfaces

         4.2.1    U S WEST shall provide Pac-West a monthly Connectivity Bill
                  that includes all Connectivity Charges incurred by and credits
                  and/or adjustments due to Pac-West for those services ordered,
                  established, utilized, discontinued or performed pursuant to
                  this Agreement. For each account, U S WEST shall issue one (1)
                  bill per month and the billing cycle shall be on a calendar
                  basis. Each Connectivity Bill provided by U S WEST to Pac-West
                  shall include:

                                    Page 23
<PAGE>

                  4.2.1.1  all non-usage sensitive charges incurred for the
                           current bill period.

                  4.2.1.2  any known unbilled non-usage sensitive charges for
                           prior periods:

                  4.2.1.3  usage sensitive charges for the current relevant bill
                           period (from the last bill date and extending up to,
                           and including, the current bill date);

                  4.2.1.4  any known unbilled usage sensitive charges for prior
                           periods: and

                  4.2.1.5  any known unbilled adjustments.

        4.2.3    The bill date must be present on each bill transmitted by U S
                 WEST to Pac-West. Must be a valid calendar date, and not more
                 than ninety (90) days old. Connectivity Bills shall not be
                 rendered for any Connectivity Charges which are incurred under
                 this Agreement on or before two hundred and seventy (270) days
                 preceding the bill date, except as otherwise permitted by law.

        4.2.4    On each bill where "Jurisdiction" is identified, local and
                 local toll charges shall be identified as "Local" and not as
                 interstate, interstate/interLATA, intrastate, or
                 intrastate/intraLATA. U S WEST shall provide from and through
                 dates for charges rendered on all Connectivity Bills.

        4.2.5    U S WEST shall separately identify business charges from
                 residence charges, as appropriate, and shall assign a specific
                 adjustment or reference number provided by Pac-West to each
                 adjustment and credit included on the Connectivity Bill.

        4.2.6    U S WEST and Pac-West shall issue all Connectivity Bills in
                 accordance with the terms and conditions set forth in this
                 Section 4. On Connectivity Bills U S WEST renders to Pac-West,
                 Billing Account Numbers (BANs) shall be thirteen (13) character
                 alpha/numeric and there shall only be one (1) BAN per State
                 unless otherwise agreed to by the Parties. The Bill Date shall
                 be the same day month to month. Each Party shall provide the
                 other Party at least thirty (30) calendar days written notice
                 prior to changing, adding or deleting a BAN. The Parties shall
                 provide one (1) Connectivity Billing invoice associated with
                 each BAN. Each invoice must contain an invoice number, which
                 will vary from month to month. On each bill associated with a
                 BAN, the appropriate invoice number and the charges contained
                 on such invoice must be reflected. All Connectivity Bills must
                 be received by the other Party no later than ten (10) calendar
                 days from the bill date and at least thirty-five (35) calendar
                 days prior to the payment due date (as described in Part A of
                 this Agreement), whichever is earlier. Any Connectivity Bill
                 received on a Saturday, Sunday or a day designated as a bank
                 holiday will be deemed received the next Business Day. If
                 either Party fails to receive Connectivity Billing data and
                 information within the time period specified above, then the
                 payment due date will be extended by the number of days receipt
                 has been delayed.

        4.2.7    U S WEST shall issue all Connectivity Bills containing such
                 billing data and information in accordance with the most
                 current version of CRIS or CABS /SECABS published by Bellcore,
                 or its successor, or such later versions as are adopted by
                 Bellcore, or its successor, as appropriate to the services
                 being billed. To the extent that there are no CRIS, CABS, or
                 SECAB standards governing the formatting of certain data, such
                 data shall be issued in the format mutually agreed to by U S
                 WEST and Pac-West, and in accordance with Attachment 6 to this
                 Agreement.

                                    Page 24
<PAGE>

        4.2.8    As detailed in the MECAB document, Pac-West and U S WEST will
                 exchange all information necessary to bill third parties for
                 Switched Access Services traffic jointly handled by Pac-West
                 and U S WEST via the meet point arrangement in a timely
                 fashion. Information shall be exchanged in Exchange Message
                 Record ("EMR") format (Bellcore Standard BR 010-200-010. as
                 amended) on magnetic tape or via a mutually acceptable
                 electronic file transfer protocol. The Parties will exchange
                 records pursuant to this paragraph without additional
                 compensation.

        4.2.9    U S WEST and Pac-West agree that each Party shall transmit
                 Connectivity Billing information and data in the appropriate
                 format as provided herein, electronically via Connect:Direct to
                 the other Party at the location specified by such Party.
                 Pac-West data centers will be responsible for originating the
                 calls for data transmission. U S WEST shall transmit in
                 accordance with the technical specifications mutually agreed
                 upon by the Parties. Pac-West will supply to U S WEST its RACF
                 ID and password before the first transmission of data via
                 Connect:Direct. Any changes to either Party's Connect:Direct
                 Node ID must be sent to the other Party no later than thirty
                 (30) calendar days before the changes take effect.

        4.2.10   In emergency situations when tape transmittal has been used, U
                 S WEST shall adhere to the tape packaging requirements set
                 forth in this Agreement. Where magnetic tape shipping
                 containers are transported in freight compartments, adequate
                 magnetic field protection shall be provided by keeping a 6-inch
                 distance from any magnetic field generating device (except a
                 magnetron-tape device). U S WEST shall only use those shipping
                 containers that contain internal insulation to prevent damage.
                 U S WEST shall clearly mark on the outside of each shipping
                 container its name, contact and return address. U S WEST shall
                 not ship any Connectivity Billing tapes in unprotected tape
                 canisters.

        4.2.11   All emergency billing data transmitted via tape must be
                 provided on a cartridge (cassette) tape and must be of high
                 quality, conform to the Parties' record and label standards,
                 9-track, odd parity, 6250 BPI group coded recording mode and
                 extended binary-coded decimal interchange code (EBCDIC). Each
                 reel of tape must be 100% tested at 20% or better "clipping"
                 level with full width certification and permanent error free at
                 final inspection. Pac-West reserves the right to destroy a tape
                 that has been determined to have unrecoverable errors. Pac-West
                 also reserves the right to replace a tape with one of equal or
                 better quality.

        4.2.12   The header record will be formatted in accordance with the
                 appropriate IBM, CASS or EDI standards as mutually agreed upon
                 by the Parties.

        4.2.13   A single 6-digit serial number must appear on the external
                 (flat) surface of the tape for visual identification. This
                 number shall also appear in the "dataset serial number field"
                 of the first header record of the IBM standard tape label. This
                 serial number shall consist of the character "V" followed by
                 the reporting location's four digit Originating Company Code
                 and a numeric character chosen by the sending Party. The
                 external and internal label shall be the same. The dataset name
                 shall appear on the flat side of the reel and also in the "data
                 set name field" on the first header record of the IBM standard
                 tape label. U S WEST's name, address, and contact shall appear
                 on the flat side of the cartridge or reel.

        4.2.14   Tape labels shall conform to IBM OSVS Operating System
                 Standards contained in the IBM Standard Labels Manual. IBM
                 standard labels are 80-character records recorded in EBCDIC,
                 odd panty.

                                    Page 25
<PAGE>

        4.2.15   U S WEST shall conform to the Standard Volume Label Format
                 which will be mutually agreed upon by the Parties.

        4.2.16   U S WEST shall use the IBM Standard Dataset Label Format which
                 will be mutually agreed upon by the Parties.

        4.2.17   U S WEST shall use test and production dataset format which
                 will be mutually agreed upon for all Connectivity Bills.

        4.2.18   (Intentionally left blank for numbering consistency)

4.3      Standards

   4.3.1    At least thirty (30) calendar days prior to U S WEST sending
            Pac-West a mechanized bill for the first time via electronic
            transmission, U S WEST shall send to Pac-West Connectivity Bill data
            in the appropriate mechanized format (e.g., CASS or SECAB) for
            testing to ensure that bills can be processed and that bills comply
            with the requirements of this Attachment After receipt of the test
            data from U S WEST Pac-West will notify U S WEST if the connectivity
            billing transmission meets Pac-West testing specifications. If the
            transmission fails to meet the mutually agreed Upon test and
            production dataset format, then, U S WEST shall make the necessary
            corrections within a mutually agreeable time frame. At least three
            (3) sets of testing data must meet Pac-West testing specifications
            prior to U S WEST sending Pac-West a mechanized production
            connectivity bill for the first time via electronic transmission or
            tape. Thereafter, U S WEST may begin sending Pac-West production
            connectivity bills via electronic transfer on the next bill date, or
            within ten (10) calendar days, whichever is later.

   4.3.2    U S WEST shall also provide to Pac-West's designated point of
            contact, U S WESTs applicable operating company number ("OCN") at
            least thirty (30) days prior to testing and at least thirty (30)
            days prior to a change of OCN.

   4.3.3    At least ninety (90) days prior to any change in existing formats or
            change to a different format, U S WEST shall send to Pac-West
            Connectivity Bill data in the appropriate mechanized format for
            testing to ensure that the bills can be processed and that the bills
            comply with the requirements of this Attachment. U S WEST agrees
            that it shall not send to Pac-West bill data in the new mechanized
            format until such bill data has met the testing specifications as
            set forth in this Section.

   4.3.4    During the testing period, in addition to Connect:Direct, U S WEST
            shall also transmit to Pac-West Connectivity Billing data and
            information via paper or tape as specified by Pac-West Test tapes
            shall be sent to an Pac-West specified location.

   4.3.5    For Connectivity Bills issued in CABS or SECAB format, U S WEST
            agrees that if it transmits data to Pac-West in a mechanized format
            U S WEST shall also comply with the following specifications which
            are not contained in CABS or SECAB guidelines but which are
            necessary for Pac-West to process Connectivity,Billing information
            and data:

        4.3.5.1 The bill date shall not contain spaces or non-numeric values.

        4.3.5.2 Each Connectivity Bill must contain at least one (1) detail
                record.

                                       26
<PAGE>

                      4.3.5.3  Any "from" date should be less than or equal to
                               the associated "thru" date and neither date can
                               contain spaces.

                      4.3.5.   A The invoice number must not have embedded
                               spaces or low values.

              4.3.6   U S WEST agrees that in order to ensure the proper
                      performance and integrity of the entire Connectivity
                      Billing process, U S WEST shall be responsible and
                      accountable for transmitting to Pac-West an accurate and
                      current bill. U S WEST agrees to implement control
                      mechanisms and procedures to render a bill that accurately
                      reflects the services ordered and used by Pac-West.

5.       Provision Of Customer Usage Data

     This Section 5 sets forth the terms and conditions for U S WEST's provision
     of Recorded Usage Data (as defined in this Attachment 5) to Pac-West and
     for information exchange regarding long distance billing.

     5.1 Procedures

              5.1.1 General

                    5.1.1.1 US WEST shall comply with various industry, OBF, and
                    other standards referred to throughout this Agreement. To
                    satisfy these requirements, the Par-ties agree to a mutual
                    interpretation of all standards referred to in this Section.

                    5.1.1.2 The Parties shall Mutually agree to OBF standards
                    and the additional standards outlined in this Agreement when
                    recording and transmitting Usage Data.

                    5.1.1.3 As new standards are developed and adopted by
                    industry, U S WEST and Pac-West will negotiate mutually
                    agreeable implementation of those standards.

                    5.1.1.4 U S WEST shall record all usage to be billed to
                    Pac-West originating from, terminating to or billed to
                    Pac-West Customers using U S WEST services ordered by
                    Pac-West Recorded Usage Data includes, but is not limited
                    to, the following categories of information:

                    Call attempts
                    Completed calls
                    Use of CLASS/LASS/custom features
                    Calls to information providers reached via U S WEST
                         facilities and contracted by U S WEST
                    Calls to Directory Assistance where U S WEST provides such
                         service to an Pac-West Customer
                    Calls completed via U S WEST-provided Operator Services
                         where U S WEST provides such service to Pac-West Local
                         Resale Customer
                    For  U S WEST-provided Centrex Service, station level detail
                         records shall include complete call detail and complete
                         timing information

                    5.1.1.5 Retention of Records: U S WEST shall maintain a
                    machine readable back-up copy of the message detail provided
                    to Pac-West for a minimum of forty-five (45) calendar days.
                    U S WEST shall provide any data back-up to Pac-West upon the
                    request of Pac-West.

                                    Page 27
<PAGE>

         5.1.1.6 U S WEST shall provide to Pac-West Recorded Usage Data for
         Pac-West Customers only. U S WEST shall not submit other carrier local
         usage data as part of the Pac-West recorded usage data.

         5.1.1.7 U 3 WEST shall not bill to Pac-West Customers any recurring or
         non-recurring charges for service provided by U S WEST to Pac-West
         except where explicitly permitted to do so within a written agreement
         between U S WEST and Pac-West

         5.1.1.8 The Parties shall record and rate all calls to information
         service providers (e.g., 976 service calls) and shall bill such calls
         directly the calling party's local service provider. In the event a
         Party's end-user disputes such a call, that Party may recourse
         consistent with the recourse arrangement the billing Party has with its
         information service provider.

         5.1.1.9 U S WEST shall provide Recorded Usage Data to Pac-West billing
         locations as designated by Pac-West.

         5.1.1.10 U S WEST shall establish an Interconnect Service Center (ISC)
         or similar function to serve as Pac-West single point of contact to
         respond to Pac-West C211 usage, data error, and record transmission
         inquiries.

                  5.1.1.10.1 US WEST shall provide Pac-West with a single point
                  of contact and remote identifiers for each sending location.

         5.1.1.11 Pac-West shall provide a single point of contact responsible
         for receiving usage transmitted by U S WEST and receiving usage tapes
         from a courier service in the event of a facility outage.

         5.1.1.12 U S WEST shall bill and Pac-West shall pay the charges for
         Recorded Usage Data. Billing and payment shall be in accordance with
         the applicable terms and conditions set forth in the Connectivity
         Billing and Recording Section of this Attachment 5.

         5.1.1.13 Without waiver of, and in addition to the Audit and
         Examination rights set forth in Part A of this Agreement, upon
         reasonable notice and at reasonable times, a Party or its authorized
         representatives may examine the recording Party's AMA records which
         relate to perceived problems with the recordings of the usage data
         relating to the billed Party under this Attachment.

5.1.2    Charges

         5.1.2.1 The Parties may charge fees for recording, rating or
         transmitting usage data. For the six (6) months following the initial
         recording, rating or transmitting of non-test usage data, the Parties
         shall not charge each other.

         5.1.2.2 No charges shall be assessed for incomplete call attempts.

5.1.3    Central Clearinghouse & Settlement

         5.1.3.1 U S WEST shall support and participate with Pac-West to develop
         an in and out-collect process developed for intra-region alternately
         billed messages.

                                    Page 28
<PAGE>

         5.1.3.2 U S WEST shall settle with Pac-West for both intra-region and
         inter-region billing exchanges of calling card, bill-to-third party,
         and collect Calls. including settlement through the CMDS CATS system
         for inter-region billing.

5.1.4    Lost Data

         5.1.4.1 Loss of Recorded Usage Data - Pac-West recorded usage data
         determined to have been lost damaged or destroyed as a result of an
         error or omission by U S WEST in its performance of the recording
         function shall, upon Pac-West's request. be recovered by U S WEST at no
         charge to Pac-West. In the event the data cannot be recovered by U S
         WEST, U S WEST shall estimate the messages and associated revenue, with
         assistance from Pac-West, based upon the method described below. This
         method shall be applied on a consistent basis, subject to modifications
         agreed to by U S WEST and Pac-West. This estimate shall be used to
         adjust amounts Pac-West, owes U S WEST for services U S WEST provides
         in conjunction with the provision of recorded usage data.

         5.1.4.2 Partial Loss - U S WEST shall review its daily controls to
         determine if data has been lost. When there has been a partial loss,
         actual message and minute volumes shall be reported, if possible. Where
         actual data are not available, a full day shall be estimated for the
         recording entity, as outlined in the following paragraphs. The amount
         of the partial loss is then determined by subtracting the data actually
         recorded for such day from the estimated total for such day.

         5.1.4.3 Complete Loss - Estimated message and minute volumes for each
         loss consisting of an entire AMA tape or entire data volume due to its
         loss prior to or during processing, loss after receipt, degaussed
         before processing, receipt of a blank or unreadable tape, or lost for
         other causes, shall be reported.

         5.1.4.4 Estimated Volumes - From message and minute volume reports for
         the entity experiencing the loss, U S WEST shall secure message/minute
         counts for the four (4) corresponding days of the weeks preceding that
         in which the loss occurred and compute an average of these volumes. U S
         WEST shall apply the appropriate average revenue per message ("ARPM")
         mutually agreed upon to the estimated message volume to arrive at the
         estimated lost revenue.

         5.1.4.5 If the day of loss is not a holiday but one (1) (or more) of
         the preceding corresponding days is a holiday, U S WEST shall use
         additional preceding weeks in order to procure volumes for two (2)
         non-holidays in the previous two (2) weeks that correspond to the day
         of the week that is the day of the loss.

         5.1.4.6 If the loss occurs on a weekday that is a holiday (except
         Christmas and Mother's Day), U S WEST shall use volumes from the two
         (2) preceding Sundays.

         5.1.4.7 If the loss occurs on Mother's Day or Christmas, U S WEST shall
         use volumes from that day in the preceding year multiplied by a growth
         rate mutually agreed upon by the Parties.

         5.1.4.8 Pac-West may also request data be provided that has previously
         been successfully provided by U S WEST to Pac-West. U S WEST shall
         re-provide such data, if available, at a charge mutually agreed to by
         the Parties.

                                    Page 29
<PAGE>

5.1.5    Testing, Changes and Controls

         5.1.5.1  The Recorded Usage Data, EMR format, content, and transmission
                  process shall be tested as mutually agreed to by the Parties.

         5.1.5.2  Interface Testing: The purpose of this test is to ensure that
                  the usage records can be sent by U S WEST to Pac-West and can
                  be accepted and processed by Pac-West U S WEST shall provide
                  a test file to Pac-West designated Regional Processing Center
                  (RPC) in the format that shall be used for live day-to-day
                  processing. The file's test content and volume shall be
                  mutually agreed to by the Parties. Pac-West shall review the
                  file and verify that it conforms to its data center
                  requirements. Pac-West shall notify U S WEST in writing
                  whether the format is acceptable. Pac-West shall also provide
                  U S WEST with the agreed upon control reports as part of this
                  test.

         5.1.5.3  Operational Test: The purpose of this test is to ensure that
                  volumes of usage in consecutive sequence can be extracted,
                  distributed, and processed by U S WEST and Pac-West.

         5.1.5.4  For testing purposes U S WEST shall provide Pac-West with U S
                  WEST recorded usage for a minimum of five (5) consecutive
                  days. Pac-West shall provide U S WEST with the message
                  validation reports associated with test usage.

         5.1.5.5  Test File: Test data should be transported via Connect:Direct
                  whenever possible. In the event that courier service must be
                  used to transport test media, the physical tape
                  characteristics to be used are described in this Attachment 5.

         5.1.5.6  Periodic Review: Control procedures for all usage transferred
                  between U S WEST and Pac-West shall require periodic review.
                  This review may be included as part of an annual audit of U S
                  WEST by Pac-West or as part of the normal production interface
                  management function. Breakdowns which impact the flow of usage
                  between U S WEST and Pac-West must be identified and jointly
                  resolved as they occur. The resolution may include changes to
                  control procedures, as similar problems would be avoided in
                  the future. Any changes to control procedures shall be
                  mutually agreed upon by Pac-West and U S WEST.

         5.1.5.7  U S WEST Software Changes

                  5.1.5.7.1 When U S WEST plans to introduce any software
                  changes which impact the format or content structure of the
                  usage data feed to Pac-West., designated U S WEST personnel
                  shall notify Pac-West no less than one hundred twenty (120)
                  calendar days before such changes are implemented.

                  5.1.5.7.2 U S WEST shall communicate the projected changes to
                  the appropriate groups in Pac-West so that potential impacts
                  on Pac-West processing can be determined.

                  5.1.5.7.3 Pac-West personnel shall review the impact of the
                  chance on the entire control structure and the post conversion
                  test plan, herein. Pac-West shall negotiate any perceived
                  problems with U S WEST and shall arrange to have the data
                  tested utilizing the modified software.

                                    Page 30
<PAGE>

                  5.1.5.7.4 if it is necessary for U S WEST to request changes
                  in the schedule, content or format of usage data transmitted
                  to Pac-West. U S WEST shall notify Pac-West.

          5.1.5.8 Pac-West Requested Changes

                  5.1.5.8.1 Pac-West may request changes in the schedule.
                  content. format of the usage data transmitted from U S WEST,
                  as deemed necessary by Pac-West.

                  5.1.5.8.2 When the negotiated changes are to be implemented.
                  Pac-West, and/or U S WEST shall arrange for testing of the
                  modified data in a Post Conversion Test Plan designed to
                  encompass all types of changes to the usage data transferred
                  by U S WEST to Pac-West and the methods of transmission for
                  that data.

          5.1.5.9 U S WEST System Change Description

                  5.1.5.9.1 For a U S WEST system change, U S WEST shall provide
                  Pac-West with an overall description of the change, stating
                  the objective and a brief explanation of the reasons for the
                  change.

                  5.1.5.9.2 During the initial negotiations regarding the
                  change, U S WEST shall provide a list of the specific records
                  and/or systems impacted by the change to designated Pac-West
                  personnel.

                  5.1.5.9.3 U S WEST shall also provide Pac-West a detailed
                  description of the changes to be implemented. It shall include
                  sufficient detail for designated Pac-West personnel to analyze
                  and estimate the effects of the changes and to design tests to
                  verify the accuracy of the implementation.

        5.1.5.10 Change Negotiations

                  5.1.5.10.1 Pac-West shall be notified in writing of all
                  proposed change negotiations initiated by U S WEST in writing.
                  In turn, Pac-West shall notify U S WEST in writing of proposed
                  change negotiations initiated by Pac-West

                  5.1.5.10.2 After formal notification of planned changes,
                  whether originated by U S WEST or Pac-West designated Pac-West
                  personnel shall schedule negotiation meetings as required with
                  designated U S WEST personnel. The first meeting should
                  produce the overall change description (if not previously
                  furnished) and the list of records and/or systems affected.

                  5.1.5.10.3 In subsequent meetings, U S WEST shall provide the
                  detailed description of changes to be implemented. After
                  reviewing the described changes, designated Pac-West personnel
                  shall negotiate a detailed test procedure with U S WEST.

         5.1.5.11 Changes to controls: Pac-West may request changes to the
                  control structure. The Parties shall mutually agree to the
                  requested chances.

         5.1.5.12 Verification Of Changes

                                    Page 31
<PAGE>

                  5.1.5.12.1 Based on the detailed description of changes
                  furnished by U S WEST, Pac-West and U S WEST personnel shall:

                  Determine the type of change(s) to be implemented:
                  Develop a comprehensive test plan:
                  Negotiate scheduling and transfer of modified data with U S
                  WEST;
                  Negotiate testing of modified data with the appropriate
                  Pac-West RPC;
                  Negotiate processing of verified data through the Pac-West
                  billing system with the RPC;
                  Arrange for review and verification of testing with
                  appropriate Pac-West groups: and
                  Arrange for review of modified controls, if applicable.

         5.1.5.13 Introduction of Changes

                  5.1.5.13.1 When all the testing requirements have been met and
                  the results reviewed and accepted, designated Pac-West and U S
                  WEST personnel shall:

                  Negotiate an implementation schedule;
                  Verify the existence of a contingency plan with the
                  appropriate Pac-West personnel; Arrange for the follow-up
                  review of changes with appropriate Pac-West personnel;
                  Arrange for appropriate changes in control program, if
                  applicable and
                  Arrange for long-term functional review of impact of changes
                  on the Pac-West billing system, i.e., accuracy, timeliness,
                  and completeness.

5.2      Information Exchange and Interfaces

5.2.1    Core Billing Information

         5.2.1.1 Recorded Usage Data includes all intraLATA toll and local
         usage. U S WEST shall provide Pac-West with unrated EMR records
         associated with all intraLATA toll and local usage which it records on
         Pac-Wests behalf. Any category, group and/or record types approved in
         the future for U S WEST shall be included if they fall within the
         definition of Local Resale. Pac-West shall be given notification thirty
         (30) days prior to implementation of a new type, category and/or
         record.

         5.2.1.2 U S WEST shall provide rated EMR records only when explicit
         consent for sending such records has been obtained from Pac-West.

         5.2.1.3 All messages recorded by a Party and billed to the other Party
         are to be transmitted to the billed Party. Recorded usage includes all
         usage billable to the other Party.

         5.2.1.4 Data Delivery Schedules: Data shall be delivered to Pac-West by
         U S WEST daily (Monday through Friday, except holidays) unless
         otherwise negotiated. Pac-West and/or U S WEST Data Center holidays are
         excluded. U S WEST and Pac-West shall exchange schedules of designated
         Data Center holidays.

5.2.2    Local Account Maintenance

                                    Page 32
<PAGE>

         5.2.2.1 When Pac-West purchases local service from U S WEST, and, as
         appropriate. when Pac-West purchases certain unbundled Network
         Elements. U S WEST shall provide Pac-West with local account
         maintenance as described herein.

         5.2.2.2 When notified by a CLEC that an Pac-West customer has switched
         to CLEC's service, U S WEST shall provision the change and notify
         Pac-West via Connect:Direct within twenty-four (24) hours of the
         provisioning that the customer has chanced to another service provider
         ("OutPLOC").

         5.2.2.3 When notified by Pac-West that a customer has changed its PIC
         only from one IXC to another, U S WEST shall provision the PIC only
         change.

         5.2.2.4 If notified by an IXC using a '01" PIC order record that an
         Pac-West Customer has changed its PIC only, U S WEST shall reject the
         order and notify that IXC using an industry standard "3148" record with
         the operating company number of Pac-West indicated, that a "0 1 " care
         PIC record should be sent to Pac-West for processing.

5.2.3    Product/Service Specific

         5.2.3.1 Subject to conditions specified in Section 5.1.1(c) of this
         Attachment 5, U S WEST shall provide a Specialized Service/Service
         Provider Charge record to support the Special Features Star Services if
         these features are part of U S WESTs offering. Such record shall be an
         EMIR 10-01-18 record or industry standard record as may subsequently be
         mutually agreed to by the Parties. Such record shall be a 10-01-18
         record or Bellcore assigned record as may be subsequently agreed to by
         the Parties.

5.2.4    Emergency Information

         5.2.4.1 U S WEST shall provide the transport facility for transmitting
         usage and billing data between the U S WEST location and the Pac-West
         location. U S WEST shall transmit via ConnectDirect whenever possible.
         In the event usage transfer cannot be accommodated by Connect:Direct
         because of extended (one (1) Business Day or longer) facility outages,
         U S WEST shall contract for a courier service to transport the data via
         tape.

         5.2.4.2 The Parties shall mutually agree to the following standards
         when emergency data is transported to Pac-West on tape or cartridge via
         a courier. The data shall be in fixed or variable block format as
         mutually agreed to by the Parties:

          Tape:                      9-track, 6250 (or 1600) BPI
                                     (Bytes per inch)
          Cartridge:                 38,000 BPI (Bytes per inch)
          LRECL:                     2,472 Bytes
          Parity:                    Odd
          Character Set:             Extended Binary Coded Decimal Interchange
                                     Code (EBCDIC)
          External labels:           Exchange Carrier Name, Dataset Name (DSN)
                                     and volume serial number
          Internal                   labels: IBM Industry OS labels shall be
                                     used. They consist of a single volume
                                     label and two (2) sets of header and
                                     trailer labels.

         5.2.4.1 To the extent the above standards are changed or revised, the
         Parties may agree to negotiate the incorporation of such new standards.

                                    Page 33
<PAGE>

5.2.5    Rejected Recorded Usage Data

              5.2.5.1 At the discretion of Pac-West, any messages that cannot be
              rated and/or billed by Pac-West may be returned to U S WEST via
              Connect: Direct. Returned messages shall be sent directly to U S
              WEST in EMR format. Standard EMIR return codes shall be utilized.

5.2.6    Interfaces

              5.2.6.1 The Parties shall transmit formatted Recorded Usage Data
              via Connect: Direct.

              5.2.6.2 Pac-West shall notify U S WEST of resend requirements if a
              pack or entire dataset must be replaced due to pack rejection,
              damage in transit, dataset name failure, etc.

              5.2.6.3 Critical edit failure on the pack header or pack trailer
              records shall result in pack rejection (e.g., detail record count
              not equal to grand total included in the pack trailer).
              Notification of pack rejection shall be made by Pac-West within
              one (1) Business Day of processing. Rejected packs shall be
              corrected by U S WEST and retransmitted to Pac-West within
              twenty-four (24) hours or within an alternate time frame
              negotiated on a case by case basis.

              5.2.6.4 A pack shall contain a minimum of one (1) message record
              or a maximum of 9,999 message records plus a pack header record
              and a pack trailer record. A file transmission contains a maximum
              of ninety-nine (99) packs. A dataset shall contain a minimum of
              one (1) pack. U S WEST shall provide Pac-West one (1) dataset per
              sending location, with the agreed upon RAO/OCN populated in the
              header and trailer records.

5.2.7    Formats & Characteristics

              5.2.7.1 Rated in collect messages should be transmitted via the
              Connect:Direct and can be intermingled with the unrated messages.
              No special packing is needed.

              5.2.7.2 EMR: U S WEST shall provide Recorded Usage Data in the
              EMIR format and by category, group and record type, and shall be
              transmitted, via a direct feed, to Pac-West The types of EMIR
              records that Pac-West can expect to receive from U S WEST,
              includes, but is not limited to, the following:

              Header Record              20-21-01, 20-20-01 or 20-24-01
              Trailer Record             20-21-02, 20-20-02 or 20-24-02
              Detail Records*            01-01-01, 06, 08, 14, 17, 18, 31, 32,
                                         35, 37, 80, 81, 82, 10-01-01, 06, 08,
                                         14, 17, 18, 31, 32, 35, 37
              Credit Records             03-01-01, 06, 08, 14, 17, 18, 31, 32,
                                         35, 37, 80, 81, 82,
              Rated Credits              41-01-01, 06, 08, 14, 17, 18, 31, 32,
                                         35, 37, 80, 81, 82,
              Cancel Records             51-01-01, 06, 08, 09, 14, 17, 18, 31,
                                         32, 35, 37, 80, 81, 8-2,
              Correction Records         71-01-01, 06, 08, 14, 17, 18, 31, 32,
                                         35, 37, 80, 81, 82,

              * Category 01 is utilized for rated messages; Category 10 is
              utilized for unrated messages. Category 10 records are to have
              indicator 13 populated with a value of 5

                                    Page 34
<PAGE>

                           5.2.7.2.1 To the extent the above standards are
                           changed or revised. the Parties may agree to
                           incorporate such new standards.

                           5.2.7.3 U S WEST shall comply with the most current
                           version of Bellcore standard practice guidelines for
                           formatting EMR records.

                           5.2.7.4 The Interfacing Bell RAO, OCN, and remote
                           identifiers shall be used by Pac-West to control
                           invoice sequencing and each shall have its own
                           invoice controls. The OCN shall also be used to
                           determine where the message returns file. containing
                           any misdirected and unguidable usage, shall be sent.

                           5.2.7.5 The file's Record Format (RECFM) shall be
                           Variable Block or fixed as negotiated, Size and the
                           Logical Record Length (LRECL) shall be as mutually
                           agreed to by the Parties.

                           5.2.7.6 (Intentionally left blank for numbering
                                   consistency)

                           5.2.7.7 U S WEST shall transmit the usage to Pac-West
                           using dataset naming conventions mutually agreed upon
                           by the Parties.

              5.2.8    Controls

                           5.2.8.1 Pac-West shall test and certify the
                           Connect:Direct interface to ensure the accurate
                           receipt of Recorded Usage Data.

                           5.2.8.2 Header and trailer records shall be populated
                           in positions 13-27 with the following information:

                             Position
                             13-14                   Invoice numbers (1-99)
                             15-16                   Bell Co. ID number
                             17-19                   Interfacing Bell RAO Code
                             20-23                   Pac-West OCN - value 7229
                             24-27                   Reseller OCN

                           The trailer grand total record count shall be
                           populated with total records in pack (excluding
                           header & trailer)

                           5.2.8.3 Control Reports: Pac-West accepts input data
                           provided by U S WEST in EMIR format in accordance
                           with the requirements and specifications detailed in
                           this Attachment 5. In order to ensure the overall
                           integrity of the usage being transmitted from U S
                           WEST to Pac-West, data transfer control reports shall
                           be required. These reports shall be provided by
                           Pac-West to U S WEST on a daily or otherwise
                           negotiated basis and shall reflect the results of the
                           processing for each pack transmitted by U S WEST.

                           5.2.8.4 Control Reports - Distribution: Since U S
                           WEST is not receiving control reports, dataset names
                           shall be established during detailed negotiations.

                           5.2.8.5 Message Validation Reports: Pac-West shall
                           provide Message Validation reports to the designated
                           U S WEST System Control Coordinator once a day (or as
                           otherwise agreed to by the Parties). These reports
                           shall be provided for all data received within U S
                           WEST Local Resale feed and shall be transmitted
                           Monday through Friday.

                                    Page 35
<PAGE>

                           5.2.9.6 Incorrect Pack Processing: This report
                           provides vital statistics and control totals for
                           packs rejected and accepted and dropped messages. The
                           information is provided in the following report
                           formats and control levels:

                           U S WEST name;
                           Reseller total messages processed in a pack:
                           Packs processed shall reflect the number or messages
                           initially erred and
                           accepted within a pack; and
                           Reseller total packs processed.

5.3      Standards

5.3.1    When requested for security purposes and on an exception basis when a
         reasonable need is demonstrated, a Party shall provide the other Party
         with Recorded Usage Data within two (2) hours of the call completion or
         within the same period that the recording Party would have that data
         for itself under similar circumstances. If not available in EMR format,
         the Recorded Usage Data may be provided in AMA format.

5.3.2    U S WEST shall include the Working Telephone Number (WTN) of the call
         originator on each EMR call record.

5.3.3    End user Customer usage records and station level detail records shall
         be in packs in accordance with EMR standards or applicable industry
         standards as defined in Section 5.3.1 of this Attachment 5.

5.3.4    U S WEST shall provide Recorded Usage Data once a day to Pac-West on a
         schedule to be determined by the Parties, Monday through Friday,
         excluding holidays. The Parties shall work together to reach agreement
         on an acceptable holiday schedule. U S WEST shall provide to Pac-West
         the Recorded Usage Data not more than one (1) Business Day after
         termination of the call for which usage data is to be provided.

5.3.5    U S WEST shall segregate and organize the Recorded Usage Data in
         accordance with Section 5.2.7 of this Attachment 5.

5.4      Standards for Transmitting and Recording Usage Data

5.4.1    Within thirty (30) days after the Effective Date of this Agreement, the
         Parties shall jointly develop standards for transmitting and recording
         usage data.

              (Deleted per Arbitrator's Recommendations)(6)

5.5      Reporting

5.5.1    Within thirty (30) days after the Effective Date of this Agreement the
         Parties shall jointly develop reporting procedures for the standards
         for transmitting and recording usage data described in Section 5.4
         above.

----------

(6) Per Recommendations at page 28, Issue 150.

                                    Page 36
<PAGE>

              (Deleted per Arbitrator's Recommendations)(7)

6.       Maintenance

     6.1      (intentionally left blank for numbering consistency)

     6.2      General Requirements

          6.2.1     U S WEST shall provide repair, maintenance, testing, and
                    surveillance for all Telecommunications Services and
                    unbundled Network Elements and Combinations in accordance
                    with the terms and conditions of this Agreement.

                    6.2. 1.1 U S WEST shall provide Pac-West with the same level
                    of maintenance support as U S WEST provides itself in
                    accordance with Standards and performance measurements that
                    U S WEST uses and/or which are required by law, regulatory
                    agency, or by U S WEST's own internal procedures, whichever
                    are the most rigorous. These standards shall apply to the
                    quality of the technology, equipment, facilities, processes,
                    and techniques (including, but not limited to, such new
                    architecture, equipment, facilities, and interfaces as 6 S
                    WEST may deploy) that U S WEST provides to Pac-West under
                    this Agreement.

                   6.2.1.2 U S WEST shall provide a SPOC (Single Point of
                   Contact) for Residence, and a SPOC for Business for Pac-West
                   to report, via a toll-free telephone number, maintenance
                   issues and trouble reports twenty four (24) hours a day and
                   seven (7) days a week. The SPOC Residence toll-free number,
                   and SPOC Business toll-free number, will be the numbers for
                   all of U S WEST's fourteen (14) states.

                   6.2.1.3 U S WEST shall provide Pac-West maintenance dispatch
                   personnel on the same schedule that it provides its own
                   Customers.

          6.2.2    Pac-West shall handle all interaction with Pac-West Customers
                   including all calls regarding service problems, scheduling of
                   technician visits, and notifying the Customer of trouble
                   status and resolution. When a U S WEST technician is on site,
                   the customer will be statused in accordance with standard U S
                   WEST procedures.

          6.2.3    Pac-West and U S WEST will provide their respective customers
                   with the correct telephone numbers to call for access to
                   their respective repair bureaus.

          6.2.4    Customers of Pac-West shall be instructed to report all cases
                   of trouble to Pac-West. Customers of U S WEST shall be
                   instructed to report all cases of trouble to U S WEST.
                   Pac-West and U S WEST will provide their respective repair
                   contact numbers to one another on a reciprocal basis.

          6.2.5    U S WEST shall cooperate with Pac-West to meet maintenance
                   standards for all Telecommunications Services, unbundled
                   Network Elements and Combinations ordered under this
                   Agreement. Such maintenance standards shall include, without
                   limitation, standards for testing, network management, call
                   gapping, and notification Of upgrades as they become
                   available.

----------

7   Per Recommendations at page 28, Issue 150.
<PAGE>

6.2.6    All U S WEST employees or contractors who perform repair service for
         Pac-West Customers shall follow mutually agreed procedures to in all
         their communications with Pac-West Customers. At a minimum, these
         procedures, and protocols shall ensure that: (a) U S WEST employees or
         contractors shall perform repair service that is at least equal in
         quality to that provided to U S WEST Customers: (b) trouble calls from
         Pac-West Customers shall receive response time priority that is at
         least equal to that of U S WEST Customers. regardless of whether the
         Customer is an Pac-West Customer or a U S WEST Customer.

6.2.7    In responding to repair calls, neither Party shall make disparaging
         remarks about each other, nor shall they use repair calls as the basis
         for internal referrals or to solicit customers to market services.
         Either Party may respond with accurate information in answering
         customer questions.

6.2.8    U S WEST shall perform scheduled maintenance, including, without
         limitation, required and recommended maintenance intervals and
         procedures, for all Telecommunications Services, Network Elements and
         Combinations provided to Pac-West under this Agreement equal in quality
         to that currently provided by U S WEST in the maintenance of its own
         network.

         6.2.8.1 US WEST shall exercise its best efforts to provide the
         designated Pac-West SPOC at least sixty (60) days advance notice of any
         scheduled activity which will likely impact Pac-West customers.

         6.2.3.2 Plans for significant service affecting activities shall
         include, at a minimum, the following information: location and type of
         facilities, specific work to be performed, date and time work is
         scheduled to commence, work schedule to be followed, date and time work
         is scheduled to be completed, and estimated number of work hours for
         completion. Examples of such activities include, but are not limited
         to, office conversions, cable facility rolls, and tandem re-homes.

6.2.9    U S WEST shall exercise its best efforts to notify Pac-West of all
         non-scheduled activities to be performed by U S WEST on any Network
         Element, including, without limitation, any hardware, equipment,
         software, or system, providing service functionality which will likely
         impact Pac-West Customers.

         6.2.9.1 U S WEST shall provide to the designated SPOC maximum advance
         notice of such non-scheduled activities in the same time and manner
         that it provides to its operation service centers.

         6.2.9.2 U S WEST shall perform emergency maintenance as promptly as
         possible to maintain or restore service and shall promptly advise the
         Pac-West designated SPOC of any such actions it takes.

6.2.10   U S WEST shall provide Pac-West a detailed description of any and all
         emergency restoration plans and disaster recovery plans which are in
         place during the term of this Agreement. Such plans shall include, at a
         minimum, the following: (a) provisions for immediate notification to
         Pac-West of the existence, location, and source of any emergency
         network outage potentially affecting an Pac-West Customer, (b)
         establishment of a SPOC responsible for initiating and coordinating the
         restoration of all Local Resale and Network Elements or Combinations;
         (c) methods and procedures to provide Pac-West with real-time access to
         information relating to the status of restoration efforts and problem
         resolution during the

                                    Page 38
<PAGE>

         restoration process; (d) an inventory and description of mobile
         restoration equipment, by location, (e) methods and procedures for
         reprovisioning of all Telecommunications Services and Network Elements
         or Combinations after initial restoration, (f) equal priority, as
         between Pac-West Customers and U S WEST Customers, for restoration
         efforts, consistent with FCC Service Restoration guidelines, including,
         without limitation, deployment of repair personnel. and access to spare
         parts and components, and (g) a mutually agreeable process for
         escalation Of Maintenance problems. including a complete, up-to-date
         list of responsible contacts. each available twenty-four (24) hours per
         day, seven (7) days per week.

         6.2.10.1 For purposes of this Section 6, an emergency network outage is
         defined as 5, 000 or more blocked call attempts in a ten (10) minute
         period for all Customers in a single exchange.

         6.2.10.2 Pac-West and U S WEST will work cooperatively to assess up
         chain (end office to tandem calls), down chain (tandem to end office
         calls), and overall customer impact U S WEST categorizes, reports and
         reacts to network outages using FCC reporting criteria and U S WEST
         Abnormal Condition Report Criteria.

6.2.11   U S WEST and Pac-West shall establish mutually acceptable methods and
         procedures for the immediate handling of misdirected calls from
         Pac-West customers to U S WEST requesting repair. The Customer shall be
         informed that Pac-West is its local service provider (LSP), and the U S
         WEST representative will provide the Pac-West customer with the
         appropriate telephone number of the Pac-West repair center. If the LSP
         screen indicator is not available, the U S WEST representative will ask
         the Pac-West Customer if it knows the name of its LSP. The U S WEST
         representative will provide the Pac-West Customer with the appropriate
         number of the Pac-West repair center. These calls are limited to repair
         information only, and are not to be used for marketing purposes.

6.2.12   When electronic interface is available, U S WEST shall inform Pac-West
         of repair completion and trouble reason within ten (10) minutes upon
         completion. If no electronic interface is available, Pac-West will
         provide a SPOC for U S WEST to call as soon as possible after repair
         completion. U S WEST shall notify Pac-West that the trouble has been
         cleared. This is done on a real-time basis. Therefore the technician
         will notify Pac-West in a similar manner, for both dispatched-in and
         dispatched-out troubles. The report shall not be considered closed
         until such notification is made. Pac-West will contact its Customer to
         determine if repairs were completed and confirm the trouble no longer
         exists.

6.2.13   U S WEST and Pac-West shall mutually develop escalation procedures to
         be followed if, in Pac-West judgment, any performance standard defined
         in this Agreement is not met for any individual trouble report The
         escalation procedures to be provided shall include names and telephone
         numbers of U S WEST management personnel who are responsible for
         maintenance issues and who will be contacted when a trouble condition
         is escalated.

6.2.14   In the event U S WEST shall fail to conform to any specified
         performance and service quality standards, identified elsewhere in this
         Agreement, U S WEST shall perform and deliver to Pac-West, a standard
         root cause analysis of the reasons for U S WEST's failure to conform,
         and U S WEST shall correct said cause as soon as possible, at its own
         expense.

                                    Page 39
<PAGE>

6.2.15   Dispatching of U S WEST technicians to Pac-West Customer premises
         shall be accomplished by U S WEST pursuant to a request received from
         Pac-West Pac-West shall be able to schedule maintenance appointments in
         intervals at panty with U S WEST upon opening of trouble report.

6.2.16   (Intentionally left blank for numbering consistency)

6.2.17   U S WEST shall supply Pac-West with a unique number to identify each
         Pac-West initial trouble report opened.

         6.2.17.1 U S WEST and Pac-West agree to a trouble priority and severity
         coding format for all trouble reports handled between the two
         companies. Troubles are prioritized according to appointment schedules:

                  6.2.17.1.1 Priority I = Out of Service 6.2.17.1.2 Priority 2 =
                  Affecting Service 6.2.17.1.3 Priority 3 = Feature Trouble

                  6.2.17.2 Customer has the ability to escalate.

6.2.18   U S WEST shall provide for resale any maintenance/protection plans for
         services offered under this Agreement to Pac-West that it offers U S
         WEST's own Customers.

6.2.19   U S WEST's current trouble reporting system does not provide the
         capability to reopen a closed trouble report. Therefore, U S WEST shall
         allow Pac-West to designate that a trouble report is associated with
         the initial trouble report which was closed in the past twenty-four
         (24) hours without repairs being performed to the Customer's
         satisfaction. U S WEST shall measure the frequency of these types of
         repeated reports and will demonstrate non-discriminatory treatment to
         Pac-West.

6.2.20   Additional Unbundling Requirements

         6.2.20.1 When trouble is reported by a Customer served through
         unbundled Network Elements, Pac-West will test its network to identify
         any problems. If no problems are identified with the Pac-West network,
         Pac-West will open a trouble report with U S WEST and provide
         switch-based test results to the U S WEST technician. U S WEST shall
         then test its portion of the network and perform repairs as required in
         the time frames set forth below in this Attachment 5.

                  6.2.20. 1.1 If U S WEST tests the unbundled loop and there is
                  no trouble found ("NTF"), the same shall be reported back to
                  Pac-West If, upon testing the unbundled loop, the trouble is
                  isolated to the Customer side of the NID (inside wire, CPE,
                  etc.), Pac-West shall be billed a trouble isolation charge
                  ("TIC"). If, after Pac-West has opened a trouble ticket, it
                  cancels the trouble ticket before a U S WEST technician has
                  been dispatched on the trouble, no charges will apply. If the
                  U S WEST technician has been dispatched on the reported
                  trouble before the trouble ticket is canceled by Pac-West, a
                  TIC will be applied.

                  6.2.20.1.2 Pac-West will coordinate combined testing or repair
                  activities until trouble is resolved. U S WEST shall provide
                  repair updates to Pac-

                                    Page 40
<PAGE>

                  West For trouble isolation both Parties will cooperatively
                  test to isolate the trouble as required.

6.3      Systems Interfaces and Information Exchanges

     6.3.1    U S WEST shall cooperate with Pac-West to establish a real-'time.
              electronic interface to U S WESTs maintenance systems and
              databases. This system shall be based on existing and future
              uniform industry standards being worked in T1 M 1 standards
              committee and Electronics Communications Implementation Committee
              ("ECIC") industry forum.

              6.3.1.1 An electronic bond will be a system to system connection
              with immediate update capability. In no way shall this interface
              cause Pac-West' personnel to use U S WEST systems via remote hook
              up or any other means of access.

              6.3.1.2 This interface shall allow Pac-West personnel to perform
              the following functions for Pac-West Customers: (a) enter trouble
              reports in the U S WEST maintenance systems for an Pac-West
              Customer, (b) retrieve and track current status on all Pac-West
              Customer trouble report; (c) receive "estimated time to repair
              (ETTR) on a real-time basis; (d) receive immediate notification in
              the event a repair person is unable to be present for, or
              anticipates missing, a scheduled repair appointment, (e) retrieve
              all time and material charges that apply to Pac-West at the time
              of ticket closure (itemized by time spent, price of materials
              used, procedures employed, amounts incurred in each such category,
              and total by Customer, per event), and (f) receive automated
              notification of case closure.

              6.3.1.3 Automated interfaces must be provided into a centralized
              operations support systems database for real time network
              monitoring to proactively identify potential service degradation.
              Such systems must monitor and report on the integrity of the U S
              WEST network, isolate trouble and, where applicable (e.g., when an
              unbundled loop is connected to an unbundled port or when an
              unbundled loop includes such equipment as DCS, D4, etc.), initiate
              repair operations, test individual unbundled loops and generate
              maintenance and repair notices that impact any end user's ability
              to complete calls. Ongoing maintenance practices on such unbundled
              loops must be equal to or exceed the practices employed by U S
              WEST for facilities used to provide Services for Resale.

              6.3.1.4 U S WEST agrees to develop and implement, as soon as
              possible, with a target date of November 1, 1997, the electronic
              interfaces described above.

     6.3.2    U S WEST agrees that Pac-West may report troubles directly to a
              single U S WEST Repair/Maintenance Center for both residential and
              business Customers. The Repair Center will have two separate
              numbers, one for residence and one for business. Pac-West' s
              Customers will be treated in the same manner as U S WEST
              Customers.

     6.3.3    U S WEST shall perform all testing for Resale Services. U S WEST
              shall provide the capability for Pac-West to receive MILT test
              results while Pac-West customer is on fine during the initial
              trouble report, when technically feasible in the U S WEST network.

                                    Page 41
<PAGE>

              6.3.3.1 U S WEST shall provide test results to Pac-West. if
              appropriate, for trouble clearance. In all instances. U S WEST
              will provide Pac-West with the disposition of the trouble.

     6.3.4    U S WEST shall provide to Pac-West the ability to obtain the
              status on open maintenance trouble reports via telephone or by
              another interface as agreed to by the Parties. U S WEST agrees to
              provide the status of residence and small business trouble reports
              upon Pac-West request.

     6.3.5    U S WEST agrees to provide to Pac-West the status for open
              maintenance trouble reports for large business Customers anytime
              the status of 'the trouble report changes or upon Pac-West's
              request.

     6.3.6    U S WEST agrees that Pac-West may call U S WEST to verify central
              office features and functions as they relate to an open trouble
              report. U S WEST agrees to work with Pac-West on the initial
              trouble report to isolate the cause of the trouble and, where
              possible, resolve the feature/function related trouble at that
              time.

     6.3.7    U S WEST agrees to proactively advise Pac-West of any central
              office failure that is known at the time of any inquiry or trouble
              report. U S WEST agrees to continue to work with Pac-West toward
              implementing a process to meet Pac-West requirements for
              notification of switch failures as soon as possible.

     6.3.8    U S WEST agrees to provide an Estimated Time To Repair (ETTR) on
              all residence and small business trouble reports.

     6.3.9    U S WEST agrees to develop, with Pac-West's cooperation, mutually
              acceptable workcenter interface agreements to document methods and
              procedures for interim and final interfaces for each service
              within thirty (30) days after Pac-West notice to U S WEST of its
              initiation of that service.

              6.3.9.1 After the initial deployment of the workcenter processes,
              U S WEST agrees to continue working with Pac-West to further
              develop, improve and refine the operational process described in
              this Agreement.

     6.3.10   U S WEST agrees to provide Pac-West with repair history of
              previous trouble reports on customer service of open trouble
              report.

     6.3.11   U S WEST shall provide Pac-West with the capability to cancel a
              trouble report.

     6.3.12   U S WEST shall provide Pac-West with the capability to modify a
              trouble report.

6.4 Standards

     6.4.1    Maintenance charges for premises visits by U S WEST employees or
              contractors shall be billed by Pac-West to its Customer.

              6.4.1.1 US WEST employees or contractors shall present the
              Customer with an Pac-West provided, Pac-West-branded form
              detailing the time spent, the materials used and an indication
              that the trouble has either been resolved, or that additional work
              will be necessary in accordance with the provisions of this
              Agreement.

                                    Page 42
<PAGE>

             6.4.1.2 If additional work is required, U S WEST employees or
             contractors shall call Pac-West from the Customer premises so that
             Pac-West can schedule a new appointment with U S WEST and Customer
             at the same time.

     6.4.2   U S WEST agrees to work with Pac-West to support expeditious
             development of an industry standard trouble report entry format and
             agrees to implement such standard within sixty (60) days after
             final resolution by the Network Operation Forum (NOF).

   6.5 Performance Measurements and Reporting

       (Deleted per Arbitrator's Recommendations)(8)

7. Miscellaneous Services and Functions

   7.1  (Intentionally left blank for numbering consistency)

   7.2  (Intentionally left blank for numbering consistency)

   7.3  Performance Measurements and Reporting

         7.3.1 (Deleted per Arbitrator's Recommendations)(9)

         7.3.2 (Deleted per Arbitrator's Recommendations)(10)

         7.3.3 (Deleted per Arbitrator's Recommendations)(11)

         [Charts Removed]

----------

8  Per Recommendations at page 28, Issue 151.
9  Per Recommendations at page 28, Issue 156.
10 Per Recommendations at page 28, Issue 156.
11 Per Recommendations at page 28, Issue 156.

                                    Page 43
<PAGE>

                                                                  Attachment 6

        INTERFACE REQUIREMENTS FOR PRE-ORDERING, ORDERING, PROVISIONING,
                      MAINTENANCE AND REPAIR, AND BILLING

1.       Purpose

         1.1      This Attachment 6 sets forth the interface requirements for
                  pre-ordering, ordering and provisioning, maintenance and
                  repair. and billing, where Pac-West provides service to its
                  customers through resale of U S WEST Local Resale or through
                  the use of Unbundled Network Elements and Combinations.

2.       Use of Standards

         2.1      As described below, Pac-West and U S WEST agree to implement
                  each interface described below based upon existing and
                  evolving industry standards or as mutually agreed upon. The
                  Parties shall transition the electronic interfaces to industry
                  standards within a time frame mutually agreed to.

3.       Reimbursement

         3.1      Reimbursement for operational interfaces shall be as
                  determined by the appropriate regulatory agency as set forth
                  in this Agreement.

4.       Scope

         4.1      This Attachment addresses the real-time transaction-based
                  protocols and transport networks that will be used to exchange
                  information for

                  o  Preorder/Ordering/Provisioning for Service Resale (SR) and
                     Customer-Specific Unbundled Network Elements (UNEs)
                  o  Maintenance/Repair for SIR and UNEs

                  It also addresses the batch protocols and transport networks
                  that will be used to exchange information for

                  o  Recorded Customer Usage for SR and UNE
                  o  Wholesale Billing for SR and UINE
                  o  Recorded Usage Receivables for UNE
                  o  Local Account Maintenance for SIR and UNE
                  o  Directory Assistance Database

                  The preceding list of information to be exchanged is intended
                  to be exemplary and does not represent a comprehensive list of
                  such information to be exchanged between the parties.

         4.2      Pac-West and U S WEST will use at least one method of
                  exchanging preorder information which will be real-time
                  transaction-based. Pac-West and U S WEST may also assess and
                  determine the arrangements and conditions to Support Batch
                  file transmittal for certain types of preorder information
                  related to the Street Address Guide and
                  Switch/Feature/Facility availability.

                                     Page 1
<PAGE>

5.       System Interfaces

         5.1      For Pre-order, Order and Provisioning, an exchange protocol,
                  such as 'that based upon a subset of Common Management
                  Interface Protocol (CMIP) transactions referred to as
                  Electronic Communications-Lite (EC-Lite), will be used to
                  transport Electronic Data Interchange (ED[) formatted content.
                  Pac-West and U S WEST will use a TCP/IP based transport
                  network for the exchange of EDI transactions. Pac-West and U S
                  WEST will translate ordering and provisioning requests from
                  the Ordering and Billing Forum (OBF) forms into EDI
                  transactions using mutually agreed to mappings. The Service
                  Order SubCommittee (SOSC) of the Telecommunications Industry
                  Forum/Electronic Data Interchange (TCIF/EDI) committee
                  interpretations of the 850, 855, 860, 864. 865, 870, and 977
                  transactions, in accordance with the OBF forms, will be used
                  to convey all the necessary data to connect, modify or
                  disconnect local exchange services.

         5.2      For Maintenance and Repair, the CMIP transactions referred to
                  as Electronic Bonding - Trouble Administration (EB-TA) will be
                  used. Pac-West and U S WEST will use an X.25 transport network
                  which is the currently defined standard.

         5.3      For Billing, Pac-West and U S WEST will use EDI 811 and OBF
                  Billing Output Specification (BOS) formats via CONNECT:Direct.
                  Section 13 further defines the conditions when one or the
                  other format will be used.

         5.4      For Local Account Maintenance (LAM), Pac-West and U S WEST
                  agree to use CONNECT:Direct.

         5.5      For Directory Assistance Database Information, Pac-West and U
                  S WEST agree to use a batch protocol and transport network
                  that is yet to be determined and will be addressed in the
                  Joint Implementation Agreement ("JIA") described in Section 18
                  of this Attachment 6.

         5.6      Modifications to OBF forms that are required due to the
                  absence of, or existence of unnecessary data fields, contents,
                  or formats will be addressed in the JIA described in Section
                  18 this Attachment 6.

6.       Real Time Performance

         6.1      The pre-order real time interface will support the Pac-West
                  customer contact as executed within Pac-Wests Sales and
                  Service Centers. Gateway-to-gateway query-response cycle time
                  performance requirements will be specified as part of the JIA
                  described in Section 18 of this Attachment 6.

         6.2      The transaction response time U S WEST provides to Pac-West
                  Sales and Service Center will be equal in quality with that
                  which U S WEST provides to itself or other telecommunications
                  carriers. For purposes of this Attachment, U S WEST agrees to
                  provide Pac-West benchmarking information for end-user
                  performance based on transaction volumes (nominal - light
                  volume, standard - typical volume, and worst case - heavy
                  volume). Pac-West may request an improvement in the
                  transaction response time U S WEST provides to Pac-West's
                  Sales and Service Center above that which U S WEST provides to
                  itself or other telecommunications carriers through the BFR
                  process (as that process is defined in Part A of this
                  Agreement), should cycle times not meet Pac-West's business
                  requirements.

                                     Page 2
<PAGE>

7.       Compliance with Industry Standards

         7.1      Pac-West and U S WEST agree to discuss the modification of
                  these interfaces based upon evolving standards (e.g., data
                  elements. protocols, transport networks. etc.) and guidelines
                  issued by or referenced by relevant Alliance for
                  Telecommunication Industry Solution (ATIS) committees.
                  Establishment of new, or changes to industry standards and
                  guidelines will be reviewed on no less than an annual basis
                  commencing on the Effective Date of this Agreement. This
                  review will consider standards and guidelines that have
                  reached final closure as well as those published in final
                  form. Both parties agree to evaluate evolving standards and
                  mutually determine the relevant modification to be implemented
                  based upon the latest approved version adopted or the latest
                  version reflecting final closure by the relevant (ATIS)
                  committee or subcommittee. The parties will use reasonable
                  effort to reach closure upon the necessary chances within no
                  more than three (3) months of initiating each review and to
                  implement the changes within nine (9) months or earlier, if
                  reasonably possible, unless there is mutual agreement to a
                  different implementation schedule.

         7.2      In the course of establishing operational ready system
                  interfaces between U S WEST and Pac-West to support Local
                  Resale delivery, Pac-West and U S WEST may need to define and
                  implement system interface specifications that are
                  supplemental to existing standards. Where mutually agreed to,
                  Pac-West and U S WEST will submit such specifications to the
                  appropriate standards committee and will work towards its
                  acceptance as a standard.

8.       Scheduled Availability

         8.1      Pac-West and U S WEST agree to an operational/production
                  readiness as soon as possible with a target date of November
                  1, 1997 for the delivery of all systems interfaces described
                  within this document, with the mutual understanding that (1)
                  product delivery content is dependent on requirements
                  definition and the time required to develop to these
                  requirements and (2) operational readiness is dependent upon
                  satisfactory test results for the transaction volumes
                  projected by Pac-West. Pac-West and U S WEST agree to work to
                  mutually identify, prioritize and track those functions which
                  may need to be positioned in a subsequent systems interface
                  delivery. These functions will be jointly reviewed to define
                  the time frame for development of subsequent releases of the
                  system interfaces and establish mutually agreeable delivery
                  dates.

         8.2      Pac-West and U S WEST agree that project schedules, timelines,
                  milestone deliverables, reporting processes, among others,
                  will be specified in the JIA (Section 18 of this Attachment
                  6). These schedules and deliverables will be reviewed and
                  revised as needed as part of regularly scheduled meetings
                  conducted throughout the development/implementation cycle.

9.       Pre-Order

         9.1      The Parties agree that the exchange of preordering information
                  for resale services and for services provided using UNEs will
                  be transmitted over the same interface.

         9.2      Pac-West and U S WEST will establish a transaction-based
                  electronic communications interface based upon the most
                  current (as of the Effective Date of this Agreement) version
                  of the Service Order Subcommittee (SOSC) implementation
                  guideline for Electronic Data Interchange (EDI). An exchange
                  protocol, such as Electronic Communications-Lite (EC-

                                     Page 3
<PAGE>

                  Lite) will be used to transport EDI formatted content
                  necessary to perform inquiries including but not limited to:
                  switch/feature/facility availability, address verification,
                  telephone number assignment, appointment scheduling, and
                  customer service record requests. Without limiting other
                  restrictions which may apply, customer service records are
                  provided for the limited purpose of supporting the resale of U
                  S WEST local exchange services by Pac-West or the sale of
                  unbundled elements on behalf of that Customer. The use of
                  records in a manner not associated with the ordering process.
                  is expressly forbidden, and is a violation of the terms of
                  this Agreement.

10.      Order and Provisioning

          10.1    When Pac-West is the customer of record for the resold local
                  exchange service(s), the exchange of information relating to
                  the ordering and provisioning of local exchange service will
                  be based upon the American National Standards Institute (ANSI)
                  Accredited Standards Committee (ASC) X12 Standards as
                  documented by the SOSC of the Telecommunications Industry
                  Forum/Electronic Data Interchange (TCIF/EDI) committee. The
                  Implementation Guidelines for Electronic Data Interchange EDI
                  Guidelines Customer Services Issue 7 will be used as a
                  baseline for implementation despite the fact that this
                  document may not have reached final approval stage by the
                  Effective Date of this Agreement. An exchange protocol, such
                  as EC-Lite will be used to transport EDI formatted content The
                  information exchange will be forms-based, using Local Service
                  Request (LSR) Form, End User Information Form, and the Resale
                  Service Form developed by the OBF as specified in the August
                  1996 version of the OBF forms in Bellcore SR STS-471OXX, and
                  for Directory Listings, included with a local service request,
                  as specified in SR STS-471102.

          10.2    The end-user specific LINE order will be based upon OBF LSR
                  forms. The applicable SOSC implementation guidelines described
                  previously also apply to the End-user Specific Provisioning
                  LINE orders. U S WEST and Pac-West agree that the information
                  exchange will be forms-based using the Local Service Request
                  Form, End User Information Form, Loop Service Form (which may
                  ultimately be renamed the Loop Element form) and Port Form
                  (which may ultimately be renamed the Switch Element Form)
                  developed by the OBF. End-user-specific Network Elements, or
                  Combinations thereof, to be supported in LINE orders shall be
                  as permitted in this Agreement for unbundled Network Elements
                  and subject to FCC and state regulatory requirements.

          10.3    Subject to regulatory direction or mutual agreement relative
                  to the requirement of providing combinations of UNE
                  components, Pac-West and U S WEST will establish a method to
                  relate, track and process as a single entity the individual U
                  S WEST provided End-user-specific UNE components specified at
                  the time of the initial order.

          10.4    Pac-West and U S WEST will use the same transaction-based
                  protocol, such as EC-Lite, and transport network specified for
                  service resale for End-user specific UNE orders.

          10.5    The ordering of common use (non-end-user-specific) UNEs, as
                  may be permitted under the Interconnection Agreement for
                  unbundled elements and subject to FCC and state regulatory
                  requirements, will be supported by a process separate from
                  that described in the preceding paragraphs for
                  end-user-specific UNEs, such system to be the same or similar
                  to the mechanized process used for trunk service requests or
                  another process or system as appropriate and determined by
                  mutual agreement. Unless U S WEST is otherwise required by
                  Pac-West, this process will not employ the electronic
                  interfaces specified in this Attachment 6, unless modified by
                  separate agreement. U S WEST will support, if and to the
                  extent required by law, this Agreement or mutually agreed to,
                  Interconnection and operation of End-user-specific UNEs used
                  in combination with

                                     Page 4
<PAGE>

                  common use UNEs. The systems and ordering process as outlined
                  herein is separate and apart from the BFR process agreed to by
                  the Parties. The JIA (Section 18 of this Attachment 6) will
                  address the details related to defining a mechanism to
                  correlate Enduser-specific LINE orders placed via system
                  interfaces with Common Use UNEs that May have been previously
                  ordered.

          10.6    U S WEST will accept an 860 transaction that contains the
                  complete refresh of the previously provided order information
                  (under the original 850 transaction) simultaneously with the
                  delivery of supplemental (new/revised) information from
                  Pac-West. subject to mutually agreed upon business rules. This
                  treatment with respect to the 860 transaction will be accepted
                  by both parties until the SOSC explicitly clarifies the
                  information exchanges associated with supplementing orders, or
                  Pac-West and U S WEST mutually agree to change the treatment.

11.      Maintenance and Repair

          11.1    The exchange of maintenance and repair information, for both U
                  S WEST retail local exchange services to be resold by Pac-West
                  and for services Pac-West provides using a U S WEST UNE or
                  combinations of U S WEST UNEs, will be transmitted over the
                  same interface.

          11.2    For the purpose of exchanging fault management information,
                  Pac-West and U S WEST will establish an electronic bonding
                  interface, based upon ANSI standards T1.227-1995 and
                  T1.228-1995, and Electronic Communication Implementation
                  Committee (ECIC) Trouble Report Format Definition (TRFD)
                  Number 1 as defined in ECIC document ECIC/TRA/95-003, and all
                  standards referenced within those documents. The parties will
                  use the functions currently implemented for reporting access
                  circuit troubles. These functions include, but are not limited
                  to: Enter Trouble, Request Trouble Report Status, Add Trouble
                  Information, Modify Trouble Report Attributes, Trouble Report
                  Attribute Value Change (AVC) Notification and Cancel Trouble
                  Report, all of which are fully explained in ANSI
                  T1.227/T1.228-1995. Additional functions not currently
                  implemented by the parties or defined by the standards may be
                  supported by mutual agreement (e.g. Test Access and Trouble
                  History).

          11.3    Modifications that are required due to the absence of, or
                  existence of unnecessary data fields, contents, or formats
                  will be addressed in the JIA described in Section 18 of this
                  Attachment 6.

12.      Recorded Customer Usage

          12.1    U S WEST will record the mutually agreed upon Customer usage
                  data that Pac-West requires for its retail local service
                  Customers. The content of such data will be based upon a
                  mutually agreeable interpretation of the BellCore Exchange
                  Message Record (EMR) format to be documented within the JIA. U
                  S WEST will provide electronic transmission of the recorded
                  data using CONNECT:Direct daily on Monday through Friday
                  (excluding holidays) on a schedule to be determined in the
                  JIA. This interface and format will be used to deliver
                  recorded usage when Pac-West is reselling retail local
                  exchange services of U S WEST and when usage is associated
                  with Customers served by Pac-West through one or more UNEs
                  provided by U S WEST. Pac-West and U S WEST will mutually
                  agree upon the conditions when Customer usage data recording
                  will be provided on behalf of Pac-West.

                                     Page 5
<PAGE>

13.      Billing Format for Service Resale (SR) and Unbundled Network Elements
        (UNE) Payables

         13.1     Billing information for unbundled loop and port elements that
                  are flat-rated will be provided in a single EDI 811 format
                  across all U S WEST regions via Connect: Direct. Billing
                  information for unbundled trunks/interoffice transport
                  elements that are flat-rated will be provided in a BOS format
                  via Connect.:Direct and will appear in the Customer Service
                  Record of the facility bill. Billing information for SR
                  products and services that are flat rated will be provided in
                  a single EDI 811 format across all U S WEST regions via
                  Connect: Direct. Exceptions include, but are not limited to,
                  frame relay which will be provided in a BOS format via
                  Connect:Direct. The display of rating codes and the associated
                  charge will be mutually agreed upon in both formats. Charges
                  associated with a specific loop will reflect the circuit ID
                  format.

          13.2    For usage-rated billing, U S WEST will issue bills to Pac-West
                  for SR/UNE in the formats described under the flat-rated
                  SR/UNE billing section. Usage-rated billing for SR/UNE will be
                  uniquely identified and displayed in the Usage Sections of the
                  bill. For products using BOS format, jurisdiction will be
                  specified per BOS guidelines. Conversation time, by chargeable
                  traffic type, will be displayed and billed per applicable
                  tariffs. Delivery of usage-rated SR/UNE bills will be provided
                  as described under the flat-rated SR/UNE billing section.

          13.3    UNEs which U S WEST agrees to provide, under the terms and
                  conditions of the Agreement, or to the extent required by law,
                  that are recombined as a single service, will be grouped
                  together by U S WEST and displayed together on the bill.

14.      Recorded LINE Local or Access Usage Receivables

          14.1    U S WEST will record all agreed upon originating and
                  terminating usage billed to and associated with a LINE
                  provided by U S WEST to Pac-West. The usage recorded will be
                  in the same BellCore Exchange Message Record format discussed
                  within Section 12 and will be subject to the same terms and
                  conditions for modification and/or replacement of the format
                  as discussed in Section IX

          14.2    Pac-West and U S WEST will mutually agree upon the Local and
                  Long Distance access customer usage data recording that U S
                  WEST will provide to Pac-West consistent with FCC and State
                  regulatory guidelines and requirements, so that Pac-West may
                  bill other carriers for the local and exchange access usage
                  charges to which Pac-West is entitled, if any. Pac-West and U
                  S WEST will perform mutually agreeable systems testing, as
                  documented in the JIA (Section 18 of this Attachment 6), as
                  soon as possible with a target date of November 1, 1997.

          14.3    U S WEST will provide electronic transmission of the recorded
                  usage using CONNECT:Direct daily on Monday through Friday on a
                  schedule to be determined in the JIA (excluding holidays). The
                  same or similar interface used for delivery of recorded
                  customer usage, discussed in Section 12, will be used for
                  delivery of the recorded usage discussed in this section.

15.      Local Account Maintenance

          15.1    When acting as the switch provider for Pac-West. where
                  Pac-West either is reselling retail services of U S WEST or
                  employing UNEs to provide local service, U S WEST will notify
                  Pac-West whenever the local service Customer transfers service
                  from Pac-West to another local service provider. U S WEST will
                  provide this notification via CONNECT:Direct using a mutually
                  agreeable 4-digit Local Use Transaction Code Status

                                     Page 6
<PAGE>

                  Indicator (TCSI) that will be used to indicate that the retail
                  customer is terminating local service with Pac-West. This
                  notice will be provided on the next processing day after
                  implementing the transfer, where processing days are Monday
                  through Friday (excluding holidays). The TCSI, sent by U S
                  WEST, will be in the 960 byte industry standard CARE record
                  format.

          15.2    Pac-West and U S WEST will process account changes that affect
                  only the presubscribed intraLATA and/or interLATA toll
                  provider (PIC) via a change service order form using the same
                  EC-Lite transaction based protocol and transport network
                  employed for ordering resale service as specified in Section
                  10.

          15.3    When appropriate regulatory guidelines exist, U S WEST will
                  use the industry standard CARE message TCSI 3148 to reject an
                  IXC-initiated change of the Primary Interexchange Carrier
                  (PIC), where U S WEST is the switch provider either for the
                  retail local services of U S WEST that Pac-West resells or
                  UNEs of U S WEST that Pac-West -employs in providing service.

          15.4    Agreement by U S WEST and Pac-West to the Local Account
                  Maintenance described above does not, in any way, set a
                  precedence or remove any obligation for U S WEST and Pac-West
                  to work towards an industry solution for supporting customer
                  movement between and among other ILECs and CLECs.

16.      Directory Assistance Database

          16.1    Pac-West and U S WEST will use a batch protocol and transport
                  network to exchange Directory Assistance Database information
                  similar to existing U S WEST listings products (i.e., DA EUSL,
                  DA EUSL Updates). The specific protocol and transport network
                  to be used has not been determined or mutually agreed to and
                  will be specified in the JIA.

          16.2    Without limiting other restrictions which may apply, directory
                  service Listing products are provided for the limited purpose
                  of supporting provision of services as outlined in this
                  Agreement The use of Listings in a manner not associated with
                  this use, is expressly forbidden, and is a violation of the
                  terms of this Agreement.

17.      Testing and Acceptance

          17.1    The Parties will test the interfaces developed under this
                  Attachment 6. The intent of the end-to-end integrity testing
                  is to establish, through the submission and processing of test
                  cases, that transactions agreed to by Pac-West and U S WEST
                  will successfully process, in a timely and accurate manner,
                  through both parties' supporting OSS as well as the
                  interfaces. Irreconcilable differences regarding the
                  interpretation of operational status of the interfaces will be
                  handled through the dispute resolution process as defined in
                  Section 27 of Part A of this Agreement.

          17.2    An interoperability testing suite shall ensure the
                  implementation of functions, capabilities, and acceptance
                  criteria enumerated in the JIA, with both Parties agreeing to
                  resolve any material defects in the software.

          17.3    The test process shall include a series of tests in which the
                  transactions, representative of the predominant business
                  transactions associated with local customer servicing, are
                  performed side-by-side using the mediated access gateway
                  interface to U S WEST Legacy systems and the Legacy system
                  interface utilized by U S WEST service representatives and
                  repair attendants. The purpose of this series of tests will be
                  to verify that the performance and response times visible to a
                  user of the mediated access

                                     Page 7
<PAGE>

                  gateway for nominal and worst case scenarios are provided with
                  the Same level of quality as U S WEST provides to itself or
                  others in accordance with the Act.

         17.4     U S WEST does not warrant that its systems and access to those
                  systems will be errorfree.

         17.5     Products and services already billed via the Integrated Access
                  Billing System (IABS) will be included in the existing
                  pre-bill certification process for general availability and a
                  recertification process conducted in accordance with current
                  practices. For products and services billed outside of IABS.
                  the parties will work towards establishing a mutually agreed
                  upon pre-bill certification process.

         17.6     Pac-West and U S WEST agree that metrics are required in order
                  to monitor the performance and assure the on-going delivery of
                  non-discriminatory access to U S WEST systems for
                  pre-order/ordering/provisioning, maintenance/repair, billing,
                  and Directory -Assistance databases. A performance measurement
                  plan that addresses the definition, measurement, and review of
                  quality, timeliness, accuracy and availability of each
                  interface and associated transactions or files will be jointly
                  developed and documented within the JIA for each interface.

         17.7     Pac-West and U S WEST agree to periodic status meetings to
                  review the overall progress toward introducing fully
                  operational interfaces capabilities as soon as possible, with
                  a target date of November 1, 1997.

         17.8     Results of testing shall be considered Confidential
                  Information, except that such results may be provided pursuant
                  to this Agreement and law.

18.      Joint Implementation Agreement Development

         18.1     Pac-West and U S WEST recognize that the preceding provisions
                  are not sufficient to resolve all, technical and operational
                  details related to the interfaces described. Therefore,
                  Pac-West and U S WEST agree to document the additional,
                  technical and operational details in the form of a Joint
                  Implementation Agreement ('JIA"). The purpose of the JIA is to
                  establish the working details of the systems interfaces
                  between the two parties, and as such, they will not be
                  submitted to the Commission for approval as amendments to this
                  Agreement. These JIA may be modified, by mutual agreement,
                  over the life of this Agreement without subjecting the balance
                  of this Agreement to renegotiation or modification.

         18.2     Both parties further agree that any technical, operational or
                  implementation issues directly associated with the systems
                  interfaces, once identified at the working team level, may be
                  escalated by the initiative of either party thirty (30) days
                  after an issue is identified. The escalation will proceed
                  first to the senior management of both companies who will seek
                  to resolve the issue. Within fourteen (14) days after the
                  Effective Date of this Agreement, Pac-West and U S WEST will
                  document the agreed upon escalation process including the
                  names and contact information of responsible senior
                  management. If an issue is not resolved within thirty (30)
                  days following receipt of the issue by senior management,
                  either party may submit the issue to the dispute resolution
                  process contained in Section 27 of Part A of this Agreement.

         18.3     Pac-West and U S WEST will document an overall project
                  implementation schedule within sixty (60) days after the
                  Effective Date of this Agreement. This schedule will be
                  mutually binding and can be modified by mutual consent.

                                     Page 8
<PAGE>

         18.4     In addition, Pac-West and U S WEST agree to document both a
                  topical outline for the JIA, and establish a schedule for
                  identifying, discussing, resolving and documenting resolution
                  of issues related to each aspect of the JIA topical outline
                  for each interface discussed in this document. In no case will
                  either end-to-end integrity testing or load testing begin
                  without both parties mutually agreeing that each interface JIA
                  documents the intended operation of the interface scheduled
                  for testing. In the event the parties can not agree prior to
                  one hundred and twenty (120) days of the
                  operational/production readiness date for delivery of all
                  system interfaces described within this Attachment. disputes
                  over the sufficiency of documentation will be submitted to
                  arbitration pursuant to the dispute resolution process
                  contained in Section 27 of Part A of this Agreement

         18.5     By mutual agreement, specific paragraphs or entire sections of
                  the Interconnection Agreement may be identified and documented
                  to serve the purpose described for the Joint Implementation
                  Agreement for specific interfaces. Any issues identified and
                  subsequently resolved through either the end-to-end integrity
                  or load testing processes will be incorporated into the
                  impacted interface section of the JIA within thirty (30) days
                  of issue resolution.

          18.6    An illustrative outline for a JIA follows:

                  o    Introduction
                  o    Purpose of Joint Implementation Agreement
                  o    Terms of Agreement
                  o    "System" Interface
                           o    Business Process and Data Requirements
                           o    Overall Responsibilities
                           o    Identification & Definitions of Activities
                           o    Information To Be Provided Per Transaction
                           o    Process Information for Each Activity &
                                Transaction
                  o    Delivery Criteria
                           o    Data Standard
                           o    Message Protocol
                           o    Transmission Protocol
                           o    Destination
                           o    Frequency Of Data
                           o    Deviations to Generic Specification
                           o    Error Processing
                           o    Process for Notification of Late Transmittals
                           o    Escalation & Expedite Procedures
                           o    Transaction Response Times File Format
                                Specifications Rules for the Physical Interface
                           o    File Structure
                           o    Data Format
                           o    Error Controls
                           o    Physical Tape Specifications
                           o    Site Information Contact Person Transmission
                                Hours
                  o Testing
                           o    Cooperative Testing
                           o    Pairwise Testing
                           o    ETE Testing
                           o    Test Order ETE (Employees)

                                     Page 9
<PAGE>

                           o    Future Testing Requirements
                  o Interface Metrics
                           o    Data Timeliness
                           o    Data Completeness
                           o    Data Accuracy
                  o Contact Information
                           o    Contacts/Escalation Contacts
                           o    Schedules for Center Operations (days/hours of
                                Operation)
                  o Data Requirements
                           o    Retention of Data
                           o    Back-up and Recovery Procedures
                           o    Disaster Recovery
                           o    System Change Notification
                           o    Guarding of Proprietary Data
                  o Reporting Information
                           o    Reports to be Generated
                           o    Frequency
                           o    Data Requirements
                           o    Transmission
                  o Change Control Process
                  o Issue Resolution Process
                  o Termination of Interface Notification

                                    Page 10
<PAGE>

                           IMPLEMENTATION SCHEDULE(1)

1.       Local Service Resale

         1.1      Within ninety (90) days after the Effective Date of this
                  Agreement but no later than October 1, 1997, U S WEST shall
                  provide for resale all services designated in this Agreement.
                  Once service is initiated in an area, the ordering and
                  provisioning intervals will be as specified in this Agreement
                  and/or adopted by the Commission.

         1.2      (Deleted per Commission Approval)

2.       Unbundled Network Platform (All Network Elements in Combination)

         2.1      Within one hundred twenty (120) days after the Effective Date
                  of this Agreement but no later than November 1, 1997, U S WEST
                  shall offer all services, Network Elements and any
                  Combinations thereof designated in this Agreement. Once
                  service is initiated in an area, the ordering and provisioning
                  intervals will be as specified in this Agreement and/or
                  adopted by the Commission.

        2.2      (Deleted per Commission Approval)

3.      Interconnection Trunking for Local Service

        3.1      Within thirty (30) days after the Effective Date of this
                 Agreement or such other time period as the Parties may mutually
                 agree, U S WEST shall provide Interconnection trunk groups
                 necessary for the mutual exchange of traffic or combined trunk
                 groups as necessary or required for efficiency and
                 interconnection billing to locations specified by Pac-West.
                 Subsequent to this thirty-day period, interconnection trunk
                 orders shall be processed as specified in this Agreement and/or
                 adopted by the Commission.

4.       Ancillary Trunking

         4.1      Within ninety (90) days after the Effective Date of this
                  Agreement but no later than November 1, 1997, U S WEST shall
                  provide:

                  4.1.1     E-911 Trunking, in cooperation with Pac-West;
                  4.1.2     SS7 Interconnection and Certification, in
                            cooperation with Pac-West; and
                  4.1.3     Directory Listings Arrangements and Directory
                            Assistance Interconnection.

----------

(1) Implementation Schedule adopted as modified per Approval at page 13,
paragraph B.

                                     Page 1
<PAGE>

5.       Unbundled Loops

         5.1      Within sixty (60) days after Collocation has been provided
                  pursuant to the terms of this Agreement, U S WEST shall
                  provide unbundled loops at designated end offices. Subsequent
                  unbundled loops should be made available pursuant to ordering
                  intervals as specified in this Agreement and/or adopted by
                  the Commission.

6.       Collocation

         6.1     Collocation will be provided upon request pursuant to the terms
                 and conditions of this Agreement.

7.       Access to Poles, Ducts and Rights of Way

         7.1      Access to Poles, Ducts and Rights of Way shall be provided
                  upon request, pursuant to the terms and conditions of this
                  Agreement.

8.       Interim Number Portability

         8.1      Interim Number Portability capabilities, as specified in this
                  Agreement, shall be made available in specified locations
                  ninety (90) days after the Effective Date of this Agreement
                  and within appropriate service order windows thereafter.
                  Interim Number Portability shall be capable of being ordered
                  electronically with a target date of December 1, 1997.

9.       Operational Support System

         9.1      Operational Support Systems shall be available for
                  preordering, ordering, provisioning, maintenance, repair and
                  billing under the following target schedule:

                  9.1.1     Service Resale of POTS and Multiline Hunt Group Up
                            to 12 lines by 11/1/97
                  9.1.2     Complex Business services by 211/98
                  9.1.3     Interim Number Portability by 1211/97
                  9.1.4     Unbundled Network Platform by 1211/97
                  9.1.5     Other elements within the Agreement by 5/1/98 or as
                            agreed to by the Parties

                                     Page 2<PAGE>

                                                                   Exhibit 10.32

             AGREEMENT FOR LOCAL WIRELINE NETWORK INTERCONNECTION

                                    Between

            Citizens Telecommunication Company of California, Inc.

                                      And

                            Pac-West Telecomm, Inc.

                            Dated: November 1, 1999
<PAGE>

             AGREEMENT FOR LOCAL WIRELINE NETWORK INTERCONNECTION

                               Table of Contents

<TABLE>
<CAPTION>
                                                                         Page
<S>                                                                      <C>
SECTION 1.     RECITALS AND PRINCIPLES                                      1
SECTION 2.     GENERAL DEFINITIONS                                          1
SECTION 3.     NETWORK INTERCONNECTION                                      3
SECTION 4.     AUDIT CLAUSE                                                 9
SECTION 5.     DISPUTE RESOLUTION                                           9
SECTION 6.     FORCE MAJEURE                                                9
SECTION 7.     COMMISSION DECISION                                         10
SECTION 8.     REGULATORY CHANGES                                          10
SECTION 9.     REGULATORY APPROVAL                                         10
SECTION 10.    YEAR 2000 COMPLIANCE                                        10
SECTION 11.    INTEGRATION                                                 12
SECTION 12.    TERM OF AGREEMENT                                           12
SECTION 13.    EFFECTIVE DATE                                              12
SECTION 14.    AMENDMENT OF AGREEMENT                                      12
SECTION 15.    LIMITATION OF LIABILITY                                     12
SECTION 16.    INDEMNITY                                                   12
SECTION 17.    ASSIGNMENT                                                  13
SECTION 18.    CONTROLLING LAW                                             13
SECTION 19.    DEFAULT                                                     13
SECTION 20.    NONDISCLOSURE                                               13
SECTION 21.    EXECUTION IN DUPLICATE                                      14
SECTION 22.    NOTICES                                                     14

ATTACHMENT A - INTERCONNECTION TRUNKING ARRANGEMENTS
               AND SPECIFIED POINTS OF INTERCONNECTION

ATTACHMENT B - GRADE OF SERVICE REQUIREMENTS
</TABLE>

<PAGE>

                                 AGREEMENT FOR
                            NETWORK INTERCONNECTION

This Agreement For Local Wireline Network Interconnection ("Agreement") made
this 1st day of November, 1999, is by and between Citizens Telecommunications
Company of California, Inc. a California corporation, having its principal place
of business at 8920 Emerald Park Drive, Suite G, Elk Grove, CA 95624
("Citizens") and Pac-West Telecomm, Inc. a California corporation, having its
                                           ----------
principal place of business at 4210 Coronado Ave., Stockton, CA 95204
("Carrier"). Citizens and Carrier may also be referred to herein singularly as a
"Party" or collectively as "the Parties.

SECTION 1.  RECITALS and PRINCIPLES
            -----------------------

Citizens is a telecommunications company authorized to provide
telecommunications services in the State of California; and

Carrier is a telecommunications company authorized by the California Public
Utilities Commission to provide local exchange telecommunications services in
the State of California; and

The Parties have in good faith negotiated, and agreed on local interconnection
terms and conditions as set forth below; and

In consideration of the mutual provisions contained herein and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, Carrier and Citizens hereby covenant and agree as follows:

SECTION 2.  GENERAL DEFINITIONS
            -------------------

Except as otherwise specified herein, the following definitions shall apply to
all Sections contained in this Agreement.  Additional definitions that are
specific to the matters covered in a particular Section may appear in that
Section.

     2.1.   "Access Services" refers to the tariffed interstate and intrastate
switched access and private line transport services offered for the origination
and/or termination of interexchange traffic (see Citizens Telecommunication
Company, Inc., dba Citizens Communications Company's FCC Tariff #5 and
appropriate Citizens state access tariffs).

     2.2.   "Access Service Request" ("ASR") means the industry standard forms
and supporting documentation used for ordering Access Services. The ASR will be
used to identify the specific trunking and facilities request for
interconnection.

     2.3    "Automatic Number Identification" ("ANI") refers to the number
transmitted through the Network identifying the calling party

     2.4.   "Certified Local Exchange Company" ("CLEC") means a
telecommunication company authorized by the Commission to provide local exchange
telecommunications services in the State of California.

                                                                          Page 1
<PAGE>

     2.5.   "CLLI Codes" means Common Language Location Indentifier Codes

     2.6.   "Commission" means the Public Utilities Commission.

     2.7.   "DS1" is a digital signal rate of 1.544 Megabits per second ("Mbps")

     2.8.   "DS3" is a digital signal rate of 44.736 Mbps.

     2.9.   "Exchange Message Record" ("EMR") is the standard used for exchange
of telecommunications message information telecommunications providers for
billable, non-billable, sample, settlement and study data. EMR format is
contained in BR-010-200-010 CRIS Exchange Message Record, a Bellcore document
which, defines industry standards for exchange message records.

     2.10.  "Interconnection" in this Agreement means only interconnection as
defined by section 251(c)(2) of the TA 1996 and refers only to the physical
linking of two networks for the mutual exchange of traffic and only for purposes
of transmitting and routing telephone exchange traffic of access traffic or
both. Interconnection does not include the transport and termination of
interexchange traffic.

     2.11.  "Local Exchange Routing Guide" ("LERG") is a Bellcore Reference
Document used by carriers to identify NPA-NXX routing and homing information as
well as network element and equipment designations.

     2.12.  "Local Exchange Service" means the provision of telephone exchange
traffic or exchange access which originates and terminates within the local
calling area as established and defined by the applicable state commission.

     2.13.  "Local Switched Access Service" means an offering of facilities for
the purpose of the origination or termination of traffic from or to local
exchange service customers in a given area pursuant to a Switched Access tariff.

     2.14.  "Multiple Exchange Carrier Access Billing" ("MECAB") refers to the
document prepared by the Billing Committee of the Ordering and Billing Forum
("OBF"), which functions under the auspices of the Carrier Liaison Committee
("CLC") of the Alliance for Telecommunications Industry Solutions ("ATIS"). The
MECAB document, published by Bellcore as Special Report SR-BDS-000983, contains
the recommended guidelines for the billing of an access service provided by two
or more LECs (including a LEC and a CARRIER), or by one LEC, in two or more
states within a single LATA.

     2.15.  "Multiple Exchange Carriers Ordering and Design" ("MECOD")
Guidelines for Access Services - Industry Support Interface, refers to the
document developed by the Ordering/Provisioning Committee under auspices of the
Ordering and Billing Forum ("OBF"), which functions under the auspices of the
CLC of the ATIS. The MECOD document, published by Bellcore as Special Report SR
STS-002643, establishes recommended guidelines for processing orders for access
service which is to be provided by two or more LECs (including a LEC and a
CARRIER). It is published by Bellcore as SRBDS 00983.

                                                                          Page 2
<PAGE>

     2.16.  "Meet-Point Billing" ("MPB") refers to a billing arrangement used
when two telecommunications carriers jointly provide a Switched Access service
over Meet Point Trunks, with each carrier receiving an appropriate share of the
revenues.  The access services will be billed using Switched Access rate
structures, and the carriers will decide whether a single bill or multiple bill
will be sent.

     2.17.  "Point of Interconnection" ("POI") means the physical location(s) at
which the Parties' networks meet for the purpose of establishing
interconnection.

     2.18.  "Rating Point" is the V&H coordinates associated with a particular
telephone number for rating purposes.

     2.19.  "Transport and Termination" denotes transmission and switching
facilities used for the exchange of traffic between interconnected carrier
networks.

     2.20.  "Wire Center" denotes a building or space within a building which
serves as an aggregation point on a given carrier's network, where transmission
facilities and circuits are connected or switched.  Wire center can also denote
a building in which -one or more central offices, used for the provision of
Basic Exchange Services and access services, are located.  However, for purposes
of interconnection service, Wire Center will mean those points eligible for such
connections as specified in the FCC Docket No. 91-141 (Expanded Interconnection
with LEC Facilities, Transport, Phase I), and rules adopted pursuant thereto.

SECTION 3.  NETWORK INTERCONNECTION
            -----------------------

The Parties hereto, agree to interconnect their facilities and networks for the
transport of exchange, intraLATA toll, and jointly provided switched access
services as follows:

     3.1.   Interconnection Trunking Arrangements
            -------------------------------------

            3.1.1.  The Parties will interconnect their networks as specified in
the terms and conditions contained in Attachment A attached hereto and
incorporated by reference. Points of Interconnection set forth in this
Agreement, may be modified from time to time by either Party with the written
consent of the other Party, which consent will not be unreasonably withheld.

            For each Citizens serving area in which Citizens has an access
tandem, the POI for interchange of traffic to and from end offices subtending
the access tandem shall be located within the boundaries of the Citizens serving
area. In any case where Citizens' end offices subtend a third party's access
tandem, interconnection between the parties' networks may, at Pac-West's option,
be established through direct connection to POIs at Citizens' end offices or
indirectly via such third party's access tandem. In such case, the POI(s) shall
be deemed to be located at the established meet point(s) of the interoffice
trunking between Citizens' end offices and such third party's access tandem.

            3.1.2.  For each Citizens access tandem where Carrier and Citizens
interconnect for the transport of local and intraLATA toll and meet-point
switched access traffic,

                                                                          Page 3
<PAGE>

the Parties agree that there will be a single POI at the Citizens wire center or
reasonable agreed to POI location.

          3.1.3.  Each Party will be responsible for the engineering and
construction of its own network facilities on its side of the POI, or if the
Parties interconnect on an indirect basis, on its side of the meet point
established with the directly connecting carrier.

          3.1.4.  The Parties mutually agree that all interconnection facilities
will be sized according to mutual forecasts and sound engineering practice, as
mutually agreed to by the Parties during planning-forecasting meetings.  The
Parties further agree that all equipment and technical interconnections will be
in conformance with all generally accepted industry standards, including all
applicable Bellcore Technical Publications with regard to facilities, equipment,
and services.

          3.1.5.  Interconnection will be provided via two-way trunks.  Separate
two-way trunks will be established for (a) local, (b) intraLATA toll, and (c)
meet point switched access traffic.  The mutually agreed upon technical and
operational interfaces, procedures, grade of service and performance standards
for interconnection between the Parties are set forth in Attachment B, attached
hereto and will conform with all generally accepted industry standards including
all applicable Bellcore Technical Publications with regard to facilities,
equipment, and services.

          3.1.6.  This Agreement is applicable only to Citizens' serving areas.
Citizens will not be responsible for interconnections or contracts relating to
any carrier's interconnection with any other carrier.

     3.2. Testing and Trouble Responsibilities
          ------------------------------------

Carrier and Citizens agree that each will share responsibility for all
maintenance and repair of trunks/trunk groups.  The Parties agree to:

          3.2.1.  Cooperatively plan and implement coordinated repair procedures
for the Meet Point and Local Interconnection Trunks and facilities to ensure
trouble reports are resolved in a timely and appropriate manner.

          3.2.2.  Provide trained personnel with adequate and compatible test
equipment to work with each other's technicians.

          3.2.3.  Promptly notify each other when there is any change affecting
the service requested, including the date service is to be started.

          3.2.4.  Coordinate and schedule testing activities of their own
personnel, and others as applicable, to ensure its interconnection trunks/trunk
groups are installed per the interconnection order, meet agreed upon acceptance
test requirements, and are placed in service by the due date.

                                                                          Page 4
<PAGE>

          3.2.5.  Perform sectionalization to determine if a trouble condition
is located in its facility or its portion of the interconnection trunks prior to
referring any trouble to each other.

          3.2.6.  Provide each other with a trouble reporting number to a work
center that is staffed 24 hours a day/7 days a week.

          3.2.7.  Immediately report to each other any equipment failure which
may affect the interconnection trunks.

          3.2.8.  Based on the trunking architecture, provide for mutual tests
for system assurance for the proper recording of AMA records in each company's
switch.  These tests are repeatable on demand by either Party upon reasonable
notice.

     3.3. Interconnection Forecasting.
          ---------------------------

          3.3.1.  The Parties will establish joint forecasting responsibilities
for traffic utilization over trunk groups. Orders for trunks that exceed
forecasted quantities for forecasted locations will be accommodated as
facilities and/or equipment are available. Intercompany forecast information
will be provided by the Parties to each other twice a year.

          3.3.2.  The forecasts will include the number, type and capacity of
trunks as well as a description of major network projects anticipated for the
following six months. Major network projects include trunking or network
rearrangements, shifts in anticipated traffic patterns, or other activities that
are reflected by a significant increase or decrease in trunking demand for the
following forecast period. The Parties agree to jointly plan for the effects of
other traffic on their networks, including issues of network capacity,
forecasting and compensation calculation.

          3.3.3.  If a trunk group is under 75 percent of centum call seconds
capacity on a monthly average basis for each month of any six month period,
either Party may issue an order to resize the trunk group, which will be left
with not less than 25 percent excess capacity.  In all cases, grade of service
objectives identified in Attachment B hereto, will be maintained.

          3.3.4.  All requests by Carrier to Citizens to establish, add, change,
or disconnect trunks will be made in writing.

          3.4.    Reciprocal Compensation For the Transport and Termination of
                  ------------------------------------------------------------
Interchanged Traffic.
---------------------

          3.4.1.  The Parties agree to reciprocally compensate each other for
the transport and termination of local exchange traffic in accordance with the
provisions of this section. The Parties will measure local exchange traffic
between them and will use such measure to determine the compensation due, if
any. Each Party will be responsible for the measurement of traffic originating
on its network. Each Party shall calculate terminating interconnection minutes
of use based on standard Automatic Message Accounting (*AMA) recordings made
within each Party's network. Measurement of minutes of use shall be in

                                                                          Page 5
<PAGE>

actual conversation seconds. The total conversation seconds will be totaled for
the entire monthly bill-round and then rounded to the next whole minutes. Each
Party shall provide to the other, within 15 calendar days after the end of each
calendar quarter, a usage report showing the total volume, in minutes of use, of
local exchange traffic delivered to the other Party for completion. The Party
delivering the greater amount of local exchange traffic to the other for
termination shall pay the other Party, for all minutes of use in excess of the
number of minutes delivered to it by the other Party, reciprocal compensation
based on the rates specified in this Agreement. Such payment shall be made
within 30 days of the Party's receipt of the other Party's billing for such
compensation.

          Until such time as the Commission has established new rates for
          Citizens pursuant to 47 C.F.R. (S) 51.705(a)(1) or 51.705(a)(3), as
          applicable, the rates for reciprocal compensation shall be as follows.

               Local Call Termination:  $ 0.002 per minute of use

          Transport:  The rates for dedicated interoffice facilities shall be
          equal to those set forth in Citizens' FCC Tariff No. 1. For comparable
          entrance facilities or direct-trunked transport.

          The rates for shared interoffice facilities shall be equal to the
weighted per-minute equivalent DS1 and DS3 interoffice dedicated transmission
links rates that reflect the relative number of DS1 and DS3 circuits used in the
tandem to end office links (or a surrogate based on the proportion of copper and
fiber facilities in the interoffice network), calculated using a loading factor
of 9,000 minutes per month per voice-grade circuit, as described in 47 C.F.R.
(S) 69.112.

          3.4.2.  Each Party will provide the other with necessary electronic
signalling data necessary to bill terminating traffic (including ANI).  The
Parties agree to use industry standard Feature Group D signalling as described
in Citizens'  FCC Tariff No.1, which are hereby incorporated by reference.

          3.4.3.  Compensation for use of facilities for interconnection will be
billed by the providing carrier according to tariffed rates as specified in
Citizens' FCC Tariff No. 1 based on the proportion of trunk capacity used by the
other carrier to send traffic that terminates on the providing carrier's
network, as measured during peak periods.

          3.4.4.  Late payment charges for interconnection charges will be
assessed as described in each Party's tariffs and specified in Citizens' FCC
Tariff No. 1.

          3.4.5.  A  Maintenance of Service charge applies whenever either Party
requests the dispatch of the either Party's personnel for the purpose of
performing maintenance activity on the interconnection trunks, and any of the
following conditions exist:

              3.4.5.1.  No trouble is found in the interconnection trunks; or

              3.4.5.2.  The trouble condition results from equipment, facilities
or systems not provided by the Party whose personnel were dispatched; or

                                                                          Page 6
<PAGE>

              3.4.5.3.  Trouble clearance did not otherwise require a dispatch,
and upon dispatch requested for repair verification, the interconnection trunk
does not exceed maintenance limits.

If a Maintenance of Service initial charge has been applied and trouble is
subsequently found in the facilities of the Party whose personnel were
dispatched, the charge will be canceled.

Billing for Maintenance of Service is based on each half-hour or fraction
thereof expended to perform the work requested.  The time worked is categorized
and billed at one of the following three rates: (1) basic time; (2) overtime; or
(3) premium time as defined in Citizens' FCC Tariff No. 1.

     3.5.  Interim Service Provider Number Portability
           -------------------------------------------

           3.5.1.  Description of Service
                   ----------------------

                   3.5.1.1.  Interim Service Provider Number Portability
("ISPNP") is a service arrangement that can be provided by Citizens to CARRIER
or by CARRIER to Citizens. Although this Agreement describes Citizens to CARRIER
arrangements, CARRIER must make ISPNP available to Citizens on a reciprocal
basis under the same terms and conditions.

                   3.5.1.2.  ISPNP allows an end user customer to transfer
service from Citizens to CARRIER and to retain their existing telephone number.
ISPNP allows incoming calls to Citizens provided telephone numbers to be routed
to the CARRIER's network for completion. ISPNP is available only for working
telephone numbers assigned to Citizens' customers who request to transfer to
CARRIER provided service.

                   3.5.1.3.  Citizens reserves the right to determine the type
of serving arrangement used to redirect ISPNP calls to the CARRIER Network (e.g.
remote call forwarding ("RCF") Additional capacity for simultaneous call
forwarding is available where technically feasible on a per path basis. CARRIER
will need to specify the number of simultaneous calls to be forwarded for each
number ported.

                   3.5.1.4.  ISPNP is subject to the following restrictions:

                        3.5.1.4.1.  An ISPNP telephone number may be assigned by
CARRIER only to CARRIER's customers located within Citizens' local calling area
and toll rating area which is associated with the NXX of the ported number.

                        3.5.1.4.2.  ISPNP is applicable only if CARRIER is
engaged in a reciprocal traffic exchange arrangement with Citizens.

                        3.5.1.4.3.  Only the existing, Citizens assigned end
user telephone number may be used as a ported number for ISPNP.

                                                                          Page 7
<PAGE>

                        3.5.1.4.4.  ISPNP will not be provided by Citizens for
Citizens' customers whose accounts are in arrears and who elect to make a change
of service provider unless and until:

Full payment for the account (including directory advertising charges associated
with the customers telephone number) is made by customer or CARRIER agrees to
make full payment on behalf of the customer.

Citizens is notified in advance of the change in service provider a Change of
Responsibility form is issued.  Citizens accepts the transfer of responsibility.

                        3.5.1.4.5.  ISPNP services shall not be resold, shared
or assigned by CARRIER.

                        3.5.1.4.6.  ISPNP is not offered for NXX Codes 555, 976,
960 and 1+ sent-paid telephones, and Service Access Codes (i.e. 500, 700,
800/888, 900). ISPNP is not available for FGA seven-digit numbers, including
foreign exchange (FEX), FX and FX/ONAL and foreign Central Office Service, as
well as restrictions that may apply for unique services; e.g., DID, hunting
arrangements. Furthermore, ISPNP numbers may not be used for mass calling
events.

                        3.5.1.4.7.  The ported telephone number will be returned
to the originating company when the service associated with the ported number is
disconnected. The company assigned the ported number may not retain it and
reassign it to another customer. The normal intercept announcement will be
provided by Citizens for the period of time until the telephone number is
reassigned by Citizens.

          3.5.2.  Customer of  Record
                  -------------------

                  3.5.2.1.  CARRIER will become the customer of record for the
ported telephone number.

                  3.5.2.2.  CARRIER will be responsible for all future charges
associated with the ISPNP arrangement including collect, third number billed
calls and any other calls charged to the Citizens provided telephone number.

          3.5.3.  Ordering and Maintenance
                  ------------------------

                  3.5.3.1.  CARRIER is responsible for all dealings with and on
behalf of CARRIER's End Users, including all end user account activity, e.g. end
user queries and complaints.

                  3.5.3.2.  CARRIER is responsible for obtaining a Letter of
Authorization (LOA) from each End User requesting a transfer of the end users
telephone number from Citizens to CARRIER.

                  3.5.3.3.  If an End User requests transfer of service from
CARRIER back to Citizens, Citizens may rely on that End User request to cancel
the ISPNP service.

                                                                          Page 8
<PAGE>

                  3.5.3.4.  Certain features are not available with for ISPNP
telephone numbers. Calling party information passed to the CARRIER network may
reflect the Citizens provided telephone number.

                  3.5.3.5.  CARRIER's designated ISPNP switch must return answer
and disconnect supervision to Citizens' switch.

SECTION 4.  AUDIT CLAUSE
            ------------

Either Party may conduct an audit of the other Party's books and records, no
more frequently than once per twelve (12) month period, to verify the other
Party's compliance with provisions of this Agreement.  Any audit shall be
performed as follows: (i) following at least forty (45) days prior written
notice to the audited Party; (ii) subject to the reasonable scheduling
requirements and limitations of the audited Party; (iii) at the auditing Party's
sole cost and expense; (iv) of a reasonable scope and duration; (v) in a manner
so as not to interfere with the audited Party's business operations.

SECTION 5.  DISPUTE RESOLUTION
            ------------------

The Parties agree that in the event of a default or violation here under, or for
any dispute arising under this Agreement or related agreements, the Parties will
first confer to discuss the dispute and seek resolution prior to taking any
action before any court or regulator, or before authorizing any public statement
about or authorizing disclosure of the nature of the dispute to any third party.
Such conference will occur at least at the Vice President level for each Party.
In the case of Citizens, its Vice President for Interconnection, or equivalent
officer, will participate in the meeting, and for Carrier, its Vice President,
or equivalent officer, will participate.

In the event the Parties are unable to resolve the dispute through conference,
the Parties agree to employ the dispute resolution procedures established by the
Commission.

SECTION 6.  FORCE MAJEURE
            -------------

If the performance of the Agreement, or any obligation hereunder is prevented,
restricted or interfered with by reason of any of the following:

     6.1.   Fire, explosion, flood, earthquake, hurricane, cyclone, tornado,
storm, epidemic, breakdown of plant or power failure;

     6.2.   War, revolution, civil commotion, acts of public enemies, blockade
or embargo;

     6.3.   Any law, order, proclamation, regulation, ordinance, demand or
requirement of any government or any subdivision, authority, or representative
of any such government;

     6.4    Labor difficulties, such as strikes, picketing or boycotts;

     6.5.   Delays caused by other service or equipment vendors;

                                                                          Page 9

<PAGE>

     6.6.   Any other circumstance beyond the reasonable control of the Party
affected; then the Party affected, upon giving prompt notice to the other Party,
will be excused from such performance on a day-for-day basis to the extent of
such prevention, restriction, or interference (and the other Party will likewise
be excused from performance of its obligations on a performance so prevented,
restricted or interfered with); provided that the Party so affected will use its
reasonable best efforts to avoid or remove such causes of nonperformance and
both Parties will proceed to perform with dispatch whenever such causes are
removed or cease.

SECTION 7.  COMMISSION DECISION
            -------------------

This Agreement will at all times be subject to such review by the Commission or
FCC as permitted by the Telecommunications Act of 1996.  If any such review
renders the Agreement inoperable or creates any ambiguity or requirement for
further amendment to the Agreement, the Parties agree to negotiate in good faith
to agree upon any necessary amendments to the Agreement.

SECTION 8.  REGULATORY CHANGES
            ------------------

Either Party may request an amendment to take into account any changes in FCC or
Commission rules and requirements, including changes resulting from judicial
review of applicable regulatory decisions.

SECTION 9.  REGULATORY APPROVAL
            -------------------

The Parties agree to jointly file this Agreement with the Commission and to
fully cooperate with each other in obtaining Commission approval.

This agreement was adopted pursuant to arbitration under 47 U.S.C. section 252
in Commission Docket No. A.99-02-002.  The provisions hereof shall be construed
in accordance with, and be subject to, the Commission's decisions in that
docket.

SECTION 10. YEAR 2000 COMPLIANCE
            --------------------

     10.1   Warranty.  Each party warrants and represents that all of its
critical  Interconnection Assets used in interconnection and the exchange of
traffic and information with the other party, including, but not limited to
information technology and non-information technology systems and facilities and
to the extent of direct influence and control, those of its external suppliers
utilized by each party in its business ("Interconnection Assets") will be "Year
2000 Compliant" (defined below) by no later than December 31, 1999.  This
warranty will survive the expiration of any other warranty period provided for
herein.  For purposes of this Agreement, the following definitions apply:

            (i)   "Date Data" means any data, formula, algorithm, process, input
or output which includes, calculates or represents a date, a reference to a date
or a representation of a date;

                                                                         Page 10
<PAGE>

            (ii)  "Year 2000 Compliant" means:

                   a.   the functions, calculations, and other computing
processes of the Interconnection Assets (collectively, "Processes") perform in a
consistent manner regardless of the date in time on which the Processes are
actually performed and regardless of the Date Data inputs to the Interconnection
Assets, whether before, on, during or after January 1, 2000 and whether or not
the Date Data is affected by leap year;

                   b.   the Interconnection Assets accept, calculate, compare,
sort, extract, sequence, and otherwise process all Date Data, and return and
display all Date Data, in a consistent manner regardless of the dates used in
such Date Data, whether before, on, during or after January 1, 2000;

                   c.   the Interconnection Assets will function correctly and
without interruptions caused by the date in time on which the Processes are
actually performed or by the Date Data inputs to the Interconnection Assets,
whether before, on, during or after January 1, 2000;

                   d.   the Interconnection Assets accept and respond to two-
digit year-date input in a manner that resolves any ambiguities as to the
century in a defined, predetermined, and appropriate manner;

                   e.   the Interconnection Assets store and display all Date
Data in ways that are unambiguous as to the determination of the century;

                   f.   no Date Data will cause one or more Interconnection
Assets to perform an abnormally ending routine or function within the Processes
or generate incorrect values or invalid results; and

                   g.   each of the Interconnection Assets will properly
exchange Date Data with ALL other Interconnection Assets that it may interact or
inter-operate with as deemed necessary.

     10.2   Testing Warranty.  Each party warrants and represents that the
critical Interconnection Assets will be tested by that party and/or that the
party will use reasonable commercial efforts to obtain completion of testing by
the party's suppliers of Interconnection Assets to determine whether each of the
Interconnection Assets are Year 2000 Compliant. Upon one party's written
request, the other party agrees to participate in additional tests of one or
more of the critical Interconnection Assets should it be determined to not be
Year 2000 Compliant. Each party will notify the other party immediately of the
results of any test or any claim or other information that indicates any
critical Interconnection Asset is not year 2000 Compliant.

     10.3   Indemnity.  Each party agrees to indemnify and hold the other party
and its shareholders, officers, directors, employees, agents, successors, and
assigns harmless from and against any and all claims, suits, actions,
liabilities, losses, costs, reasonable attorneys' fees, expenses, judgments or
damages, whether ordinary, special or consequential, resulting

                                                                         Page 11
<PAGE>

from any third-party claim made or suit brought against the indemnified party or
such persons, to the extent such results from the indemnifying party's breach of
the warranties contained in this Section; provided that, as a condition
precedent to any obligation on the part of a party to indemnify and hold
harmless the other party or any other person under this Section, the other party
must notify the indemnifying party in writing of any such claim or suit within
ten (10) days of its first having received any notice thereof. After receipt of
such notice from the other party, the indemnifying party shall acknowledge in
writing to the other party within ten (10) days its obligation under this
Section with respect to such claim or suit and, upon doing so, may take control
of the investigation and defense of such claim or suit to the extent consistent
with such acknowledgement and, subject to the consent of the other party, which
may not unreasonably be withheld, may enter into a settlement or compromise
thereof on behalf of itself and the other party. The other party shall cooperate
in such investigation and defense. The other party may undertake its own defense
of any claim or suit for which the indemnifying party has failed or refused to
acknowledge its obligations under this section, but may not, without the consent
of the indemnifying party, which consent shall not unreasonably be withheld,
enter into a settlement or compromise of any such claim or suit in which the
indemnifying party is a named defendant or as to which the indemnifying party
has acknowledged partial responsibility under this Section.

     10.4   Repair Obligation.  To the extent that it is determined by a party,
that an Interconnection Asset is not Year 2000 compliant, the party owning or
operating that Interconnection Asset agrees to immediately formulate and
implement a written plan of action to modify the Interconnection Asset such that
it is Year 2000 complaint.  Advisement  of such plan of action shall be
delivered to the other party within ten (10) business days after completion of
same.  As part of any such plan, the party required to modify the
Interconnection Asset shall, at its expense, commit the resources necessary to
correct any nonperformance, error or defect in a timely manner commensurate with
the nature of harm caused by the nonperformance, error or defect, and will
complete the correction not later than thirty (30) days after delivery of the
plan of action.

SECTION 11. INTEGRATION
            -----------

The Parties have negotiated this Agreement as integrated document.  All of the
terms and conditions herein are dependent upon the other terms and conditions
herein and no part of this Agreement would have been entered into by the Parties
without the other terms of this Agreement.  No portion of this Agreement is
intended to be severable from any other part of this Agreement.

SECTION 12. TERM OF AGREEMENT
            -----------------

The initial term will be for two (2) years from the Effective Date.  Thereafter,
this Agreement may be renewed for successive one-year terms on the anniversary
of the Effective Date provided Carrier forwards a written request to renew to
Citizens not less than 90 days prior to the expiration date.  Citizens will
provide Carrier with current prices for the services covered by this contract no
later than 30 days after receiving the written request to renew.

                                                                         Page 12
<PAGE>

SECTION 13.  EFFECTIVE DATE
             --------------

This Agreement will become effective upon approval by the Commission.  If the
Agreement terminates, each of the parties will continue to perform its
obligation under the terminated  Agreement until a successor Agreement becomes
effective.

SECTION 14.  AMENDMENT OF AGREEMENT
             ----------------------

The Parties may mutually agree to amend this Agreement in writing.  Because it
is possible that amendments to this Agreement may be needed to fully satisfy the
purposes and objectives, the Parties agree to work cooperatively, promptly, and
in good faith to negotiate and implement any such additions, changes, and/or
corrections to this Agreement.  Any amendment must be made in writing.

SECTION 15.  LIMITATION OF LIABILITY
             -----------------------

Except as otherwise provided herein, neither Party will be liable to the other
in connection with the provision or use of services provided under this
Agreement for indirect, incidental, consequential, special damages, including
(without limitation) damages for lost profits, regardless of the form of action,
whether in contract, indemnity, warranty, strict liability, or tort.

SECTION 16.   INDEMNITY
              ---------

Each Party will indemnify and hold the other harmless from any liabilities,
claims or demands (including the costs, expenses and reasonable attorney's fees
on account thereof) that may be made by third parties for (a) personal injuries,
including death, or (b) damage to tangible property resulting from the sole
negligence and/or sole willful misconduct of that Party, it employees or agents
in the performance of this Agreement.  Each Party will defend the other at the
other's request against any such liability, claim, or demand.  Each Party will
notify the other promptly of written claims or demands against such Party of
which the other Party is solely responsible hereunder.

SECTION 17.  ASSIGNMENT
             ----------

This Agreement may not be assigned to another party without written consent of
the other Party, which consent will not be unreasonably withheld.

SECTION 18.  CONTROLLING LAW
             ---------------

This Agreement was negotiated by the Parties in accordance with the terms of the
Telecommunications Act of 1996 and the laws of the State of California.  It
                                                            ----------
will be interpreted solely in accordance with the terms of the
Telecommunications Act and applicable state law.

SECTION 19.  DEFAULT
             -------

If either Party believes the other is in breach of this Agreement or otherwise
in violation of law, it will first give sixty (60) days notice of such breach or
violation and an opportunity for the

                                                                         Page 13
<PAGE>

allegedly defaulting Party to cure. Thereafter, the Parties will employ the
Dispute Resolution and Arbitration procedures set forth in this Agreement.

SECTION 20.   NONDISCLOSURE
              -------------

              20.1.  "Confidential Information" as used herein means any
information in written, oral, or other tangible or intangible forms which may
include, but is not limited to, ideas, concepts, know-how, models, diagrams,
flow charts, data, computer programs, marketing plans, business plans, customer
names, and other technical, financial, or business information, which is
designated as "confidential" or "proprietary" by either Party in the belief that
it contains a trade secret or other confidential research, development, or
commercial or financial information.

              20.2.  All written Confidential Information to be covered by this
Agreement will be identified by a restrictive legend which clearly specifies the
proprietary nature of the information.

              20.3   If the Confidential Information is provided orally, it will
be deemed to be confidential or proprietary if specifically identified as such
by either Party or if the information is clearly recognizable to be of a
confidential and proprietary nature.

              20.4.  Any Confidential Information produced, revealed, or
disclosed by either Party to the other will be used exclusively for purposes of
the business discussions and/or negotiations, and will be kept separately from
other documents and materials.

              20.5.  All persons receiving access to Confidential Information
will not disclose it nor afford access to it to any other person not
specifically authorized by this Agreement to obtain the Confidential
Information, nor will such Confidential Information be used in any other manner
or for any other purpose than as provided in this Agreement. No copies or
reproductions will be made of any Confidential Information or any part thereof,
whether by mechanical, handwritten, or any other means, without the prior
written consent of the Party providing it.

              20.6.  Upon request by the disclosing Party, the receiving Party
will return all tangible copies of Confidential/ Proprietary Information,
whether written, graphic or otherwise, except that the receiving Party may
retain one copy for archival purposes.

              20.7.  Notwithstanding any other provision of this Agreement, this
section will apply to all information furnished by either Party to the other in
furtherance of the purpose of this Agreement, even if furnished before the date
of this Agreement.

SECTION 21.   EXECUTION IN DUPLICATE
              ----------------------

This Agreement may be executed in duplicate copies, and, upon said execution,
will be treated as an executed document.

                                                                         Page 14
<PAGE>

SECTION 22.   NOTICES
              -------

Any notices required by, or concerning, this Agreement will be sent to the
Parties at the following addresses:

     For Carrier:                      and to Citizens, addressed as follows:
     Pac-West Telecomm, Inc.           Citizens Communications
     John F. Sumpter                   Attention: Interconnection Manager, West
     Vice President-Regulatory         Interconnection Services Dept.
     4210 Coronado Avenue              P.O. Box 860
     Stockton, CA 95204                Palo Cedro, CA 96073
     Tel:(209) 926-3136                Tele:(530) 547-2218
     Fax:(209) 926-4820                Fax:(530) 547-2233

                                       Any Invoices should be sent to:
                                       Citizens Communications
                                       Attention: Manager, Network Cost
                                       1080 Pittsford-Victor Rd.
                                       Pittsford, NY 14534
                                       Tel:(716) 389-0394
                                       Fax:(716) 389-0391

                                 cc:   Citizens Communication
                                       Barbara Snider
                                       7901 Freeport Blvd.
                                       Sacramento, CA 95832
                                       Tel: (916) 665-5335
                                       Fax: (916) 665-5351

Each Party will inform the other in writing of any changes in the above
addresses.

The Parties have caused this Local Wireline Network Interconnection Agreement to
be executed on their behalf on the dates set forth below.

PAC-WEST TELECOMM, INC.                  CITIZENS TELECOMMUNICATIONS
                                         COMPANY OF CALIFORNIA, INC.

By:_______________________________       By:_______________________________

Typed:  John F. Sumpter                  Typed:  F. Wayne Lafferty
      ----------------------------             ----------------------------

Title:  VP-Regulatory                    Title: VP, Regulatory & Government
      ----------------------------             ----------------------------
                                               Affair
                                               ----------

Date:_____________________________       Date: ____________________________

                                                                         Page 15
<PAGE>

                                 ATTACHMENT A

                     INTERCONNECTION TRUNKING ARRANGEMENTS
                                      AND
                      SPECIFIED POINTS OF INTERCONNECTION

CITIZENS SERVICE                    CLEC POI
   LOCATION                        (CLLI Code)            RT       NPA  NXX
-----------------                  -------------       --------   -----------

Elk Grove, CA
-----------------                  -------------       --------   -----------

Susanville, CA
-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

-----------------                  -------------       --------   -----------

                                                                          Page 1
<PAGE>

                                 ATTACHMENT B

                         GRADE OF SERVICE REQUIREMENTS

All Interconnection Facilities will meet Industry Standard of Engineering,
Design and Operation.

The Grade of Service for all Facilities between Citizens' End Office or Tandem
and Carrier will be engineered to achieve P.01 Grade of Service.

                                                                          Page 1
<PAGE>

SECTION 22.   NOTICES
              -------

Any notices required by, or concerning, this Agreement will be sent to the
Parties at the following addresses:

     For Carrier:                        and to Citizens, addressed as follows:
     Pac-West Telecomm, Inc.             Citizens Communications
     John F. Sumpter                     Attention: Interconnection Manager,
     Vice President-Regulatory           West Interconnection Services Dept.
     4210 Coronado Avenue                P.O. Box 860
     Stockton, CA  95204                 Palo Cedro, CA 96073
     Tel:  (209) 926-3136                Tel: (530) 547-2218
     Fax:  (209) 926-4820                Fax: (530) 547-2233

                                         Any Invoices should be sent to:
                                         Citizens Communications
                                         Attention:  Manager, Network Cost
                                         1080 Pittsford-Victor Rd.
                                         Pittsford, NY 14534
                                         Tel:  (716) 389-0394
                                         Fax:  (716) 389-0391

                                   cc:   Citizens Communication
                                         Barbara Snider
                                         7901 Freeport Blvd.
                                         Sacramento, CA 95832
                                         Tel: (916) 665-5335
                                         Fax: (916) 665-5351

Each Party will inform the other in writing of any changes in the above
addresses.

The Parties have caused this Local Wireline Network Interconnection Agreement to
be executed on their behalf on the dates set forth below.

PAC-WEST TELECOMM, INC.                  CITIZENS TELECOMMUNICATIONS
                                         COMPANY OF CALIFORNIA, INC.

By:     /s/ John F. Sumpter              By:     /s/ F. Wayne Lafferty
   -------------------------------          -------------------------------

Typed:  John F. Sumpter                  Typed:  F. Wayne Lafferty
      ----------------------------             ----------------------------

Title:  VP-Regulatory                    Title: VP, Regulatory & Government
      ----------------------------             ----------------------------
                                               Affair
                                               ----------

Date:_____________________________       Date: 10/15/99
                                              -----------------------------

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