<PAGE>   1
                                                                   EXHIBIT 10.22

THE INFORMATION BELOW MARKED (*) OR (***) HAS BEEN OMITTED PURSUANT TO A
REQUEST FOR CONFIDENTIAL TREATMENT. THE OMITTED PORTIONS HAVE BEEN SEPARATELY
FILED WITH THE COMMISSION.


                                 AMENDMENT TWO

                                       TO

                                COVER AGREEMENT

                                    BETWEEN

                 SPRINT COMMUNICATIONS COMPANY L.P. ("SPRINT")
                                      AND
               VERIO, INC. (FORMERLY WORLDNET, INC.) ("CUSTOMER")


This Amendment Two ("Amendment") to the Cover Agreement is entered into by and
between Sprint and Customer, effective as of the first day of the first
complete billing month following the date this Amendment is signed by both
parties ("Amendment Two Commencement Date").

         WHEREAS, Sprint and Customer entered into a certain Cover Agreement on
September 30, 1996 ("Cover Agreement") and Amendment One to that Cover
Agreement on November 7, 1996 ("Amendment One"), and

         WHEREAS, the parties wish to amend the Cover Agreement to: (a) modify
certain special prices and terms for Sprint's Domestic ATM, Clearline and
Sprint Clarity Services, (b) add the terms and prices for a Customer Network
Monitoring (CNM) capability for ATM Services, and (c) add special prices and
terms for Domestic Sprint Frame Relay Services.

         NOW THEREFORE, for and in consideration of the mutual agreement and
understandings contained herein, the parties agree as follows.

1.       CHANGES TO LIST OF PRODUCTS AND SERVICES

         A.      The following products and services are added to the list of
                 "Products and Services": "Sprint Clarity and Domestic Sprint
                 Frame Relay."

2.       CHANGES TO ATM PRICING AND TERMS - OC3 PORTS

         A.      The table in Subsection 4.A.1 of the Cover Agreement is hereby
                 amended by adding OC-3 Port pricing as follows:

                 Port         Installation Charge    Monthly Charge
                 ----         -------------------    --------------
                 OC-3 Port    $(*) each            $ (*) each per month

         B.      Subsection 4.A.2 of the Cover Agreement is hereby amended by
                 adding the following:

                 "Sprint shall apply a (*) percent (*%) discount to the OC-3
                 Monthly Port Connection charge specified above. Notwithstanding
                 in the first paragraph of this Subsection, installation
                 charges for OC-3 Ports are not subject to the (*)% discount."


Amendment Two to Cover Agreement - Verio   1 of 8                       02/19/98
                         SPRINT PROPRIETARY INFORMATION
<PAGE>   2
THE INFORMATION BELOW MARKED (*) OR (***) HAS BEEN OMITTED PURSUANT TO A
REQUEST FOR CONFIDENTIAL TREATMENT. THE OMITTED PORTIONS HAVE BEEN SEPARATELY
FILED WITH THE COMMISSION.

         C.      Subsection 4.D of the Cover Agreement is hereby amended by
                 adding a new Subsection 4.D.6 as follows:

                 "6. Orders for DS-3 Ports and OC-3 Ports will be accepted in
                  Sprint's sole discretion."

3.       CUSTOMER NETWORK MONITORING - ATM SERVICES

         A new Subsection 4.E is hereby added to the Cover Agreement as
         follows:

         "E. Customer Network Monitoring - Sprint shall provide Customer with a
         Customer Network Monitoring (CNM) capability for its ATM sites during
         the remaining Term of the Cover Agreement, which CNM capability shall
         consist of: (a) a 64 Kbps out-of-band connection from Customer's
         premise to the Sprint Broadband Operations Center (BBOC), (b) access
         to the Proxy Agent workstation located at the Sprint (BBOC), (c)
         standard installation and testing of the CNM, and (d) standard
         monitoring and reporting per the Proxy Agent. Customer shall be
         responsible for making appropriate router configuration changes for
         this capability. The non-recurring CNM charge is $(*) per CNM.
         Sprint shall waive the monthly recurring CNM charge of $(*) per
         CNM. Customer shall pay Sprint all charges for local access lines per
         Sprint Tariff 8."

4.       CHANGES TO CLEARLINE PRICING AND TERMS                           

         A.      Subsection 5.A of the Cover Agreement is hereby amended as
                 follows:

                 1.       Subsection 5.A is changed by adding the words "DS-1
                          (Clearline 1.5)" to the beginning of the heading as
                          follows:

                          "DS-1 (Clearline 1.5). DS-3 (Clearline 45) and OC-3
                          (Private Line) Special Prices"

                 2.       Subsection 5.A.1 is hereby deleted in its entirety
                          and a new Subsection 5.A.1 is added in lieu thereof
                          which shall read as follows:

                          "1. Interstate DS-3 Inter-Exchange (IXC) Charges
                          During each billing month of the Term following the
                          Amendment Two Commencement Date, Customer will
                          receive a (*)% discount, in lieu of all other
                          discounts, on the monthly recurring charges for the
                          interexchange portion of its point-to-point
                          interstate (not including the domestic extension of
                          international private lines) Clearline 45 private
                          line circuits installed during the Term."

                 3.       A new Subsection 5.A.3 is hereby added which shall
                          read as follows:

                          "3. DS-1 Inter-exchange (IXC) Charges  During each
                          billing month of the Term following the Amendment Two
                          Commencement Date, Customer will be charged the
                          applicable rates from the tables below (based on
                          Customer's Monthly Volume of Service ("MVS") and
                          individual Order terms) for the monthly recurring
                          charges on the interexchange portion of each
                          point-to-point interstate (not including the domestic
                          extension of international private lines) Clearline
                          1.5 private line circuits installed during the Term.



Amendment Two to Cover Agreement - Verio   2 of 8                       02/19/98
                        SPRINT PROPRIETARY INFORMATION
<PAGE>   3
THE INFORMATION BELOW MARKED (*) OR (***) HAS BEEN OMITTED PURSUANT TO A
REQUEST FOR CONFIDENTIAL TREATMENT. THE OMITTED PORTIONS HAVE BEEN SEPARATELY
FILED WITH THE COMMISSION.

                               Less than Three (3) Year Order Term Rates
                                       Monthly Recurring Charges


<TABLE>
<CAPTION>
                         MVS             Fixed Rate per Circuit    Rate per IXC Circuit Mile
                 --------------------    ----------------------    -------------------------
                 <S>                            <C>                          <C>
                 $      0  - $ 49,999           (***)                        (***)
                 $ 50,000  - $ 74,999           (***)                        (***)
                 $ 75,000  - $ 99,999           (***)                        (***)
                 $100,000  - $199,999           (***)                        (***)
                 $200,000  - $499,999           (***)                        (***)
                 $500,000+                      (***)                        (***)

</TABLE>

                
                                      Three Year Order Term Rates
                                       Monthly Recurring Charges
                

<TABLE>
<CAPTION>
                         MVS             Fixed Rate per Circuit    Rate per IXC Circuit Mile
                 --------------------    ----------------------    -------------------------
                 <S>                            <C>                           <C>
                 $      0  - $ 49,999           (***)                        (***)
                 $ 50,000  - $ 74,999           (***)                        (***)
                 $ 75,000  - $ 99,999           (***)                        (***)
                 $100,000  - $199,999           (***)                        (***)
                 $200,000  - $499,999           (***)                        (***)
                 $500,000+                      (***)                        (***)
</TABLE>


                 For purposes of this paragraph, MVS Contributory Services are:
                 Customer's total monthly circuit charges for the interexchange
                 portion of Customer's domestic Clearline 1.5 private line
                 circuits, calculated after all available discounts have been
                 applied.

                 During the first twelve (12) billing months following the
                 Amendment Two Commencement Date. Customer will receive the
                 rates in the tables above which correspond to the $(*) MVS
                 level or such higher level as Customer may achieve during any
                 such billing month. Beginning in the 13th billing month
                 following the Amendment Two Commencement Date and continuing
                 through the last billing month of the Term, Customer will
                 receive rates based on the actual MVS level each month."

         B.      Subsection 5.B of the Cover Agreement entitled "Special
                 Clearline Terms" is hereby amended as follows:

                 1.       Subsection 5.B.1 is deleted in its entirety and a
                          new Subsection 5.B.1 is added in lieu thereof which
                          shall read as follows:

                          "1. The special prices above for Sprint's Clearline
                          and Private Line Services are contingent on Customer
                          maintaining the following minimum average circuit
                          lengths (POP-to-POP) during each billing month of the
                          Term:

                                  
                            
                                       :
                                  (***):                        (***)
                                       :
    

   
                                                      (***)
    





Amendment Two to Cover Agreement - Verio   3 of 8                       02/19/98
                        SPRINT PROPRIETARY INFORMATION
<PAGE>   4
THE INFORMATION BELOW MARKED (*) OR (***) HAS BEEN OMITTED PURSUANT TO A
REQUEST FOR CONFIDENTIAL TREATMENT. THE OMITTED PORTIONS HAVE BEEN SEPARATELY
FILED WITH THE COMMISSION.


         2.      A new Subsection 5.B.3 and Subsection 5.B.4 is added which
                 shall read as follows:

                 "3. During each billing month of the Term, at least (*)
                 percent ((*)%) of Customer's Clearline 1.5 traffic must be
                 interstate traffic."

                 "4. Orders for DS-3 and OC-3 circuits will be accepted in
                 Sprint's sole discretion."

5.       CHANGES TO CLARITY PRICING AND TERMS

         A.      Subsection 2.A of Amendment One, entitled "Usage Charges" is
                 hereby deleted its entirety and a new Subsection 2.A is added
                 in lieu thereof which shall read as follows:

                 "A. Usage Charges

                     Beginning on the Amendment Two Commencement Date, Customer
                     will be charged the applicable fixed Net Effective
                     Usage rates from the tables below for its Sprint Clarity
                     Products and Services:

                     1. Customer will be charged the applicable fixed Net
                        Effective Usage rates from the table below, based on
                        Customer's Monthly Volume of Services (MVS), for its 
                        interstate Sprint Clarity Outbound Service Usage Charges
                        and interstate Sprint Clarity Toll Free Service Usage 
                        Charges:

<TABLE>
<CAPTION>
                                                   Rate Per Minute
                                MVS             Dedicated    Switched
                        --------------------    ---------    --------
                        <S>                     <C>          <C>
                        $  0     - $ 99,999       (***)       (***)
                        $100,000 - $149,999       (***)       (***)
                        $150,000 - $199,999       (***)       (***)
                        $200.000 - $299,999       (***)       (***)
                        $300,000+                 (***)       (***)
</TABLE>                

                 For purposes of this paragraph, MVS Contributory Services are:
                 (a) Customer's total monthly Usage Charges for Sprint Clarity
                 Outbound and Sprint Clarity Toll Free Services, calculated
                 after all available discounts have been applied, (b)
                 Customer's total monthly circuit charges for the interexchange
                 portion of Customer's domestic Clearline 1.5 and Clearline 45
                 private line circuits, calculated after all available
                 discounts have been applied, and (c) Customer's total monthly
                 Usage Charges for Sprint ATM and Sprint Frame Relay,
                 calculated after all available discounts have been applied.

                 2. Customer will be charged the applicable fixed Net Effective
                 Usage rates from the table below for its intrastate Sprint
                 Clarity Outbound Service Usage Charges in California:

   
<TABLE>
<CAPTION>
                                          Rate per minute
                                     Dedicated        Switched
         
                   <S>                       <C>    <C>       <C>     <C>
                   Jurisdiction               Peak  Off-Peak   Peak    Off-Peak
                   ------------              ------  --------  -----   --------
                   InterLATA (California)    $ (***) $   (***) $(***)  $  (***)
                   IntraLATA (California)    $ (***) $   (***) $(***)  $  (***)
</TABLE>
    

                3. Customer will be charged the applicable fixed Net Effective
                   Usage rates from the table below for its intrastate Sprint
                   Clarity Toll Free Service Usage in California:





Amendment Two to Cover Agreement - Verio    4 of 8                      02/19/98
                       SPRINT PROPRIETARY INFORMATION
<PAGE>   5
THE INFORMATION BELOW MARKED (*) OR (***) HAS BEEN OMITTED PURSUANT TO A
REQUEST FOR CONFIDENTIAL TREATMENT. THE OMITTED PORTIONS HAVE BEEN SEPARATELY
FILED WITH THE COMMISSION.

   
<TABLE>
<CAPTION>
                                              Rate Per Minute
                                        Dedicated        Switched
                       <S>                     <C>     <C>       <C>     <C>
                       Jurisdiction            Peak    Off-Peak  Peak    Off-Peak
                       ------------            ----    --------  ----    --------
                       InterLATA (California)  $ (*)   $   (*)   $ (*)   $   (*)
                       IntraLATA (California)  $ (*)   $   (*)   $ (*)   $   (*)
</TABLE>
    

         B.      Subsection 2.B of Amendment One, entitled "Installation
                 Charges" is hereby deleted in its entirety.  Subsection 2.B of
                 Amendment One, which provided for waived installation charges
                 for T-1 access lines used to access Sprint's voice services,
                 is addressed in Subsection 7.B of this Amendment Two below.

6.       DOMESTIC SPRINT FRAME RELAY SERVICES

         The following is hereby added to the Cover Agreement.

         A.      Charges for Frame Relay Products and Services

                 Sprint's Frame Relay Products and Services are governed by
                 applicable Tariffs on file with regulatory agencies. As set
                 forth in the applicable Tariffs, the following are the primary
                 components of the pricing for Sprint's Frame Relay Products
                 and Services. The term "Domestic" shall mean the 48 contiguous
                 United States and the District of Columbia.

                 1.       Local Access Facilities - These are the charges for
                          the physical telco leased line connecting the
                          Customer premise to the Sprint Frame Relay Network.
                          Access line charges and terms, Access Coordination
                          Fees (ACF) and Central Office Connection (COC) fees
                          shall be pursuant to Sprint Tariff 8.

                 2.       Access Channel or Port - These are the charges for
                          the port access to the Sprint Frame Relay Network.
                          There is a one-time installation charge and a monthly
                          recurring charge based on the maximum allowed burst
                          size (bandwidth) required for each access channel
                          (port).

                 3.       Permanent Virtual Connection (PVC) - These are the
                          charges for use of the Sprint network to interconnect
                          Customer's specific end-points. For Domestic Frame
                          Relay Services, PVC charges are based on the class of
                          service selected by the Customer; either Frame Relay
                          for LAN or Frame Relay for SNA. Both classes of
                          Service can be provisioned with a variety of
                          Committed Information Rates (CIRs). There is a one
                          time installation charge and a monthly recurring
                          charge per PVC.

                 4.       Customer Premise Equipment - Certain Customer Premise
                          Equipment ("CPE") is required in order to utilize
                          Sprint's Frame Relay Products and Services. Customer
                          may purchase or rent such CPE from Sprint pursuant to
                          the Sprint CPE Order form. There is a one time
                          installation charge for CPE installed by Sprint.

         B.      Domestic Sprint Frame Relay Special Prices and Terms

                 1.       For Domestic Sprint Frame Relay Services, Sprint
                          shall waive (*) of the installation charges for
                          Access Channels (Ports) and Frame Relay for LAN PVCs
                          installed during the Term, contingent on Customer
                          using such Access Channels (Ports) and PVCs for a
                          minimum of twenty-four (24) continuous months
                          ("Minimum Use Period"). For any Access Channels
                          (Ports) and PVCs which are terminated prior to the
                          end of the Minimum Use Period set forth


Amendment Two to Cover Agreement - Verio   5 of 8                       02/19/98
                        SPRINT PROPRIETARY INFORMATION
<PAGE>   6
THE INFORMATION BELOW MARKED (*) OR (***) HAS BEEN OMITTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT. THE OMITTED PORTIONS HAVE BEEN SEPARATELY FILED WITH
THE COMMISSION.

                          herein, Customer shall be obligated to pay Sprint a 
                          pro-rata amount of the waived installation charges
                          based upon the number of months remaining in the 
                          Minimum Use Period.

                 2.       For Domestic Sprint Frame Relay Services, Customer
                          will receive the applicable discount from the table
                          below, in lieu of all other discounts, on the monthly
                          recurring charge for each Domestic Sprint Frame Relay
                          for LAN Service, 56/64 Kbps Access Channel in service
                          during the Term, based on the individual Access
                          Channel Order term and the total number of Customer's
                          Access Channels (Ports) installed at the time of the
                          Order:

                                                  Order Term in Years
                                Access Channels
                                   Installed      One    Two    Three   Four
                                ---------------   ---    ---    -----   ----  
                                     0-24         (*)%   (*)%    (*)%    (*)%
                                    25-49         (*)%   (*)%    (*)%    (*)%
                                    50-74         (*)%   (*)%    (*)%    (*)%
                                    75-99         (*)%   (*)%    (*)%    (*)%
                                    100+          (*)%   (*)%    (*)%    (*)%

                 3.       For Domestic Sprint Frame Relay Services, Customer
                          will receive the applicable discount from the table
                          below, in lieu of all other discounts, on the monthly
                          recurring charge for each Domestic Sprint Frame Relay
                          for LAN Service 112/128 Kbps through 1344/1536 Kbps
                          Access Channel in service during the Term, based on
                          the individual Access Channel Order term and the total
                          number of Customer's Access Channels (Ports) installed
                          at the time of the Order:

                                                  Order Term in Years
                                Access Channels
                                   Installed      One    Two    Three   Four
                                ---------------   ---    ---    -----   ----  
                                     0-24         (*)%   (*)%    (*)%    (*)%
                                    25-49         (*)%   (*)%    (*)%    (*)%
                                    50-74         (*)%   (*)%    (*)%    (*)%
                                    75-99         (*)%   (*)%    (*)%    (*)%
                                    100+          (*)%   (*)%    (*)%    (*)%
                                                                        
                 4.       For Domestic Sprint Frame Relay Services, Customer
                          will receive the applicable discount from the table
                          below, in lieu of all other discounts, on the monthly
                          recurring charge for each Domestic Sprint Frame Relay
                          for LAN Service (zero-CIR) permanent virtual circuit
                          (PVC) in service during the Term, based on the
                          individual PVC Order term and the total number of
                          Customer's Access Channels (Ports) installed at the
                          time of the Order:
                                
                                                  Order Term in Years
                                Access Channels
                                   Installed      One    Two    Three   Four
                                ---------------   ---    ---    -----   ----  
                                     0-24         (*)%   (*)%    (*)%    (*)%
                                    25-49         (*)%   (*)%    (*)%    (*)%
                                    50-74         (*)%   (*)%    (*)%    (*)%
                                    75-99         (*)%   (*)%    (*)%    (*)%
                                    100+          (*)%   (*)%    (*)%    (*)%

                                                                        

Amendment Two to Cover Agreement - Verio   6 of 8                       02/19/98
                        SPRINT PROPRIETARY INFORMATION
<PAGE>   7
THE INFORMATION BELOW MARKED (*) OR (***) HAS BEEN OMITTED PURSUANT TO A
REQUEST FOR CONFIDENTIAL TREATMENT. THE OMITTED PORTIONS HAVE BEEN SEPARATELY
FILED WITH THE COMMISSION.

7.       LOCAL ACCESS FACILITIES

         A.      Subsection 6.A of the Cover Agreement is amended by changing
                 the word "Clearline" in the second line of Subsection 6.A to
                 read "Clearline 45 and Private Line (OC-N)" as follows:

                 "All charges for Local Access Facilities provided by Sprint to
                 access the ATM and Clearline 45 and Private Line (OC-N)
                 Products and Services (including ACF and COC) shall be quoted
                 by Sprint on an individual Order basis."

         B.      Subsection 6.B of the Cover Agreement (as previously amended)
                 is hereby deleted in its entirety and a new Subsection 6.B is
                 added in lieu thereof which shall read as follows:

                 "B.      Sprint will waive (*)% of the installation charges
                          (including non-recurring ACF and COC charges) for the
                          following Sprint provided or Customer provided local
                          access lines installed during the Term, contingent on
                          Customer using such access lines for a minimum of
                          twenty-four (24) continuous months ("Minimum Use
                          Period").

                          1.      domestic DS-1, DS-3 and OC-3 access lines
                                  used to access Sprint's Domestic ATM and
                                  Clearline (including OC-3) Products and
                                  Services;
                          2.      domestic T-1 and DAL access lines used to
                                  access Sprint's Domestic Frame Relay
                                  Services;
                          3.      domestic T-1 access lines used to access
                                  Sprint's voice services.

                          If Customer disconnects any access line in which
                          Sprint waived the installation charges prior to the
                          end of the Minimum Use Period set forth herein, then
                          Customer shall be obligated to pay Sprint the pro-rata
                          dollar amount of the waived installation charges based
                          on the number of months from the effective date of
                          such termination to the expiration date of the Minimum
                          Use Period."

         C.      A new Subsection 6.C is hereby added as follows:

                 "C.      DS-1 ACF and COC Monthly Recurring Charges. Sprint
                          will waive: (a) (*)% of the monthly recurring ACF
                          charges, and (b) (*)% of the monthly recurring COC
                          charges on Sprint-provided domestic DS-1 (Clearline
                          1.5) private line circuits with individual circuit
                          terms of three (3) years or longer installed or in
                          service during the Term."

8.       OTHER SPECIAL TERMS

         Section 8 of the Cover Agreement entitled "Other Special Terms" is
         hereby amended by adding the following new Subsection 8.G:

         "G. Sprint must be Customer's Preferred Telecommunications Services
         Provider for all its voice telecommunications services."

9.       CUSTOMER'S AFFILIATES AND SUBSIDIARIES

         Attachment C to the Cover Agreement is hereby modified by deleting the
         list of Customer's Affiliates and Subsidiaries and adding the list of
         Customer's Affiliates and Subsidiaries attached to this Amendment in
         lieu thereof.


Amendment Two to Cover Agreement - Verio   7 of 8                       02/19/98
                        SPRINT PROPRIETARY INFORMATION

<PAGE>   8
10.     ENTIRE AGREEMENT

        A.       This Amendment Two represents the entire agreement between the 
                 parties with respect to the subject matter hereof and
                 supersedes all prior statements, communications or agreements,
                 whether oral or written, between the parties.

        B.       This Amendment Two, Amendment One, the Cover Agreement, the 
                 Orders and all applicable Tariffs shall represent the entire 
                 agreement between the parties with respect to Sprint's
                 provision of the Products and Services. In the event of any
                 conflict between any of the aforementioned documents, the
                 following shall be the order of precedence: (1) the applicable
                 Tariffs, (2) this Amendment Two, (3) Amendment One, (4) the
                 Cover Agreement, and (5) the Orders.
                 
IN WITNESS WHEREOF, the parties hereto have caused this Amendment Two to the
Agreement to be executed by their duly authorized representatives.

VERIO, INC.                                SPRINT COMMUNICATIONS COMPANY, L.P.
                                           
By: /s/ CHRIS DEMARCHE                     By: /s/ DAVE BERRY
   -------------------------------------      --------------------------------
   Signature                                  Signature
                                           
                                           
   Chris DeMarche                             Dave Berry                      
   -------------------------------------      --------------------------------
   Name Typed or Printed                      Name Typed or Printed
                                           
                                           
   Chief Technical Officer                    Vice President                  
   -------------------------------------      --------------------------------
   Title                                      Title
                                           
   February 25, 1998                          March 2, 1998
   -------------------------------------      --------------------------------
   Date                                       Date
                                           


Amendment Two to Cover Agreement - Verio   8 of 8                       02/19/98
                        SPRINT PROPRIETARY INFORMATION



<PAGE>   9
                                  ATTACHMENT C

                 LIST OF CUSTOMER'S AFFILIATES AND SUBSIDIARIES

Attached is a list of the affiliates and subsidiaries of Verio, Inc. who are
eligible to obtain the Products and Services pursuant to the terms and
conditions and prices set forth in this Agreement.  This list may change from
time to time upon written agreement of the parties.

<TABLE>
<CAPTION>
LISTING OF AFFILIATES:
----------------------
<S>                        <C>                         <C>
ACCESSONE                  INTERNET INTERSTATE         RAINET
11321 NE 120th             4925 Saint Elmo Avenue      The Hazeltine Building
Suite B                    Bethesda, MD 20814          133 SE 2nd Avenue
Kirkland, WA 98034         (301) 652-4468              Suite 230
(206) 814-9100                                         Portland, OR 97204
                           NATIONAL KNOWLEDGE          (503) 227-1945
AIMNET                     NETWORK                     
2350 Mission College       400 North St. Paul Street   RUSTNET
Blvd.                      Suite 500                   33129 Schoolcraft Road
Suite 600                  Dallas, TX 75201            Livonia, MI 48150
Santa Clara, CA 95054      (214) 880-0700              (313) 762-6000
(408) 567-3800                                       
                           NORTHWEST NET, INC.         SERVICE TECH
CCNET, INC.                15400 S.E. 30th Place       182 Monroe Avenue
1777 Botelho Drive         Suite 202                   Rochester, New York
Suite 130                  Bellevue, WA 98007          14607
Walnut Creek, CA 94596     (206) 649-7400              (716) 263-3360
(1)    988-0680                                    
                           ONRAMP TECHNOLOGIES         SIGNET PARTNERS, INC.
COMPUTE INTENSIVE          1950 Stemmons Freeway       1515 South Capital of
8001 Irvine Center Drive   The InfoMart                Texas Highway
Suite 1130                 Suite 2026                  Suite 400
Irvine, CA 92718           Dallas, TX 75207            Austin, TX 78745
(1)    450-8400            (214) 672-7267              (512) 306-0700
                                                     
COMPUTECH                                              STRUCTURED NETWORK
422 West Riverside Drive   PACIFIC RIM NETWORK,        SYSTEMS
Suite 328                  INC.                        Imperial Business Park
Spokane, WA 99201          725 N State Street          15635 SE 114th Ave
(509) 624-6798             Bellingham, WA 98225        Suite 201
                           (360) 650-0442              Clackamus, OR 97015
GLOBAL ENTERPRISE                                      (503) 656-3530
SERVICES, INC. (GES)       PIONEER GLOBAL              Fax: 402-436-3036
4390 US Route 1 North,     811 Boylston Street         
3rd Floor                  Boston, MA 02116            
Princeton, NJ 08510        (617) 375-0200              
(609) 514-3800                                       
</TABLE>                                             
                         
                                      C-1                              02/19/98
                        SPRINT PROPRIETARY INFORMATION
<PAGE>   10
<TABLE>
<S>                        <C>                         <C>
SURF NETWORK, INC.         DYNANET                     ATMNET
303 Horsham Road           COMMUNICATIONS, INC.        5440 Morehouse Dr, Suite
Suite 8B                   215-773-0700                3700
Horsham, PA 19044          Fax: 215-672-7705           San Diego, CA 92121
(215) 682-0100                                         
                           GLOBAL INTERNET             VERIO COLORADO
WEST COAST ONLINE          755 Page Mill Road, Suite   7400 E. Orchard, Suite
5800 Redwood Drive         A-101                       3000
2nd Floor                  Palo Alto, CA 94304         Englewood, CO 80111
Rohnert Park, CA 94928     Telephone: 800-682-5550     708-2201
(707) 586-3060                                         
</TABLE>


                                      C-2                               02/19/98
                        SPRINT PROPRIETARY INFORMATION