EXHIBIT 10.39

CONFIDENTIAL MATERIALS HAVE BEEN OMITTED FROM THIS EXHIBIT PURSUANT TO A REQUEST
FOR  CONFIDENTIAL  TREATMENT AND HAVE BEEN FILED  SEPARATELY WITH THE SECURITIES
AND EXCHANGE COMMISSION. ASTERISKS DENOTE OMISSIONS.

                                 AMENDMENT EIGHT

                                     TO THE

                            MANAGED NETWORK AGREEMENT

                                     BETWEEN

                       SPRINT COMMUNICATIONS COMPANY L.P.

                             AND BRIDGE DATA COMPANY

THIS AMENDMENT  EIGHT  (BSG0001-196)  is made to the Managed  Network  Agreement
between Sprint  Communications  Company L.P.  ("SPRINT") and Bridge Data Company
("BRIDGE")  signed by BRIDGE on January 31, 1995 and by SPRINT on March 1, 1995,
as amended by Amendment One signed by BRIDGE on August 22, 1995 and by SPRINT on
August 23, 1995, Amendment Two signed by BRIDGE on August 11, 1995 and by SPRINT
on August 16, 1995, Amendment Three signed by BRIDGE on February 22, 1996 and by
SPRINT on March 1, 1996, Amendment Four signed by BRIDGE on July 22, 1996 and by
SPRINT on July 29, 1996, Amendment Five signed by BRIDGE on December 4, 1996 and
by SPRINT on  December 5, 1996,  Amendment  Six signed by BRIDGE on May 23, 1997
and by SPRINT on May 23, 1997,  and  Amendment  Seven signed by BRIDGE on August
28, 1998 and by SPRINT on September 8, 1998 (the "Agreement").

Pursuant to the Assignment and Assumption  Agreement signed by BRIDGE and SAVVIS
Communications  Corporation  ("SAVVIS")  on February  3, 2000,  and by SPRINT on
February 4, 2000,  all  references  to "Bridge Data Company" or "BRIDGE" are now
changed,  respectively,  to  "SAVVIS  Communications  Corporation"  or  "SAVVIS"
(hereinafter  "Customer"),  as  successor  and  assign  to  the  Agreement.  The
following  modified  and  added  terms  and  conditions  are  made a part of the
Agreement  effective  on the first day of the first  billing  month  after  this
Amendment Eight is signed by SPRINT and Customer  ("Amendment Eight Commencement
Date").

SPRINT and Customer agree as follows:

1.     SECTION  2  (CONTRACT   DOCUMENTS  AND   DEFINITIONS  OF  THE  AGREEMENT,
       SUBPARAGRAPH  (B) IS AMENDED BY DELETING THE  DEFINITION OF "PRODUCTS AND
       SERVICES" AND REPLACING IT AS FOLLOWS:

       "Products  and Services"  means the  equipment,  facilities,  programming
       software  and related  services  provided by SPRINT to SAVVIS  under this
       Agreement.  The Products and Services  include Domestic and Global Sprint
       Frame Relay Services,  Domestic Sprint X.25 Services,  Global Sprint X.25
       Services,  Global  Sprint X.75  Services,  Domestic and Global Sprint ATM
       Services,  Domestic  and Global  Sprint IP  Products  and  Services,  and
       Domestic  and Global  Clearline  Services.  Products  and Services do not
       include  special  access  lines that may be used by SAVVIS in  connection
       with the Products and Services.



                                       1

<PAGE>

2.     SECTION  2  (CONTRACT   DOCUMENTS  AND  DEFINITIONS)  OF  THE  AGREEMENT,
       SUBPARAGRAPH (B) IS AMENDED BY ADDING THE FOLLOWING NEW DEFINITIONS:

         "SAVVIS Company Site" means a SAVVIS or SAVVIS  Affiliate  Installation
         Site.

         "SAVVIS Customer Site" means an Installation Site for an end-user other
         than SAVVIS or a SAVVIS Affiliate.

         "Domestic" means the 48 continguous states of the United States and the
         District of Columbia  for Sprint  Frame Relay  Products  and  Services,
         Sprint IP Products and Services,  Sprint Managed  Network  Products and
         Services,  SprintNet  Public Data Network (X.25) Products and Services,
         and Sprint ATM Products and Services.  Otherwise,  "Domestic" and other
         geographic terms are defined in the applicable SPRINT tariffs.

3.     SECTION 3 (TERM AND  EXTENSIONS)  OF THE AGREEMENT IS AMENDED BY DELETING
       SUBPARAGRAPH (A) AND REPLACING IT WITH THE FOLLOWING LANGUAGE:

         a)       The term ("Term") of this Agreement is 60 months commencing on
                  the Amendment Eight Commencement Date.

4.     SECTION  9  (MINIMUM  COMMITMENT)  OF THE  AGREEMENT  IS  DELETED  IN ITS
       ENTIRETY AND IS REPLACED WITH THE FOLLOWING PARAGRAPHS:

         Section 9.        Minimum Commitment

         a)       Customer agrees to achieve a Minimum Annual Commitment ("MAC")
                  of [**] of  Contributory  Services  Usage Charges  during each
                  Contract   Year  (defined  as  the  12  billing  month  period
                  commencing on the Amendment  Eight  Commencement  Date) of the
                  Term.  "Contributory  Services Usage Charges" includes service
                  usage or monthly  recurring  charges,  as applicable,  for the
                  following   Products  and  Services,   calculated   after  the
                  application of all available discounts:  Domestic Sprint Frame
                  Relay  Service,  Global Sprint Frame Relay  Service,  Domestic
                  access lines (including  monthly ACF and COC charges),  Global
                  access lines,  Domestic  Sprint  Dedicated  Access  Facilities
                  ("DAFs"),  Global  Sprint DAFs,  Domestic  Sprint IP Dedicated
                  Service,  Domestic  Sprint  ATM  Service,  Global  Sprint  ATM
                  Service,  the total monthly  circuit  charges for the domestic
                  portion  of  International  private  line  circuits,  and  the
                  interexchange  portion of point-to-point  interstate Clearline
                  45 and OC3 private line circuits, Sprint Real Solutions Annual
                  and  Sprint  Real  Solutions  VPN.  In the  event  the Team or
                  Renewal Term, as the case may be, includes a partial  Contract
                  Year,  the  Customer's  MAC will be  prorated  based  upon the
                  number of months in the partial Contract Year.

[**] CONFIDENTIAL TREATMENT REQUESTED

                                       2
<PAGE>

         b)       If Customer is unable to satisfy the MAC for a Contract  Year,
                  Customer  may "carry  forward"  up to [**] of the MAC for such
                  Contract Year and add such amount to the MAC for the following
                  Contract  Year.  If  Customer is unable to satisfy the MAC, as
                  adjusted,  in the last Contract Year of this  Agreement,  then
                  the last  Contract  Year  will be  extended  for 3  additional
                  months.  If, at the conclusion of such extension,  Customer is
                  unable to satisfy the MAC, as adjusted, then Customer must pay
                  SPRINT,  in  addition  to all other  charges,  the  difference
                  between  the MAC, as  adjusted,  and  Customer's  Contributory
                  Services Usage Charges in the last Contract Year.

         c)       If Customer terminates this Agreement or ceases to use Network
                  Services to any material  extent,  Customer will pay to SPRINT
                  the MAC  divided  by 12  multiplied  by the  number of billing
                  months  remaining in the Term.  SPRINT will bill  customer for
                  such amount on its next  regular  invoice and such amount will
                  be due and payable according to the payment terms contained in
                  this Agreement.

         d)       At any time  during the Term,  Customer  may elect to increase
                  its MAC by  providing  at  least 30 days'  written  notice  to
                  SPRINT of its intent to  increase  its MAC.  Customer  may not
                  decrease its MAC.

5.       SECTION  14  (ACCESS  MANAGEMENT)  OF THE  AGREEMENT  IS DELETED IN ITS
         ENTIRETY AND IS REPLACED WITH THE FOLLOWING LANGUAGE:

a)       Customer  may  select  any or all of the  following  options  regarding
         access  management.  Rates for each of these  options  are set forth in
         Section XIII of Attachment B.

         1)       SPRINT  may  order  and  manage on  Customer's  behalf  access
                  services for use in connection with the Products and Services.
                  Customer  will supply  SPRINT with letters of agency to permit
                  SPRINT to act on Customer's  behalf to order and manage access
                  services.  The local access provider will invoice SPRINT,  and
                  SPRINT will invoice Customer for access services; or

         2)       Customer may directly  order and manage  access  services from
                  the local access provider; or

         3)       Customer may choose SPRINT's  Coordinated Vendor Billed Access
                  ("SCVBA") service.  If Customer selects this option,  Customer
                  will supply  SPRINT with letters of agency to permit SPRINT to
                  act as  Customer's  agent to order,  test and  install  access
                  service, but the access provider will bill Customer directly.

b)       With SPRINT's prior written approval, SPRINT will permit SAVVIS to have
         Customer-provided  access to Customer Equipment that is collocated in a
         SPRINT facility.  Upon SPRINT's approval,  SPRINT will provide a Letter
         of Agency  ("LOA")  and a  Connecting  Facility  Assignment  ("CFA") to
         permit an access  provider to use common  entrance  facilities into the
         SPRINT  facility.  Approval is subject to the availability of bandwidth
         at the common  entrance  facility.  The access  provider must provide a
         Design Layout Record  ("DLR") to build the access circuit to the SPRINT
         facility.  SPRINT will be  responsible  for installing the cabling from
         the POP crossconnect switch to Customer's Equipment.

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       3
<PAGE>

c)       SPRINT will use due care to (i)  monitor,  direct,  and  supervise  the
         performance  of all local access  providers  it orders  access from and
         manages on Customer's  behalf  (including  conducting fault isolation);
         (ii) enforce any warranties and other assurances of performance  SPRINT
         has from such access  providers;  or (iii) report  promptly to Customer
         any  actual  or  threatened  failure  of  performance  by  such  access
         providers  that does or could  reasonably be expected to materially and
         adversely  affect SPRINT's ability to provide any Product or Service in
         conformity with the requirements of this Agreement.

6.       SECTION 22 (ASSIGNMENT) OF THE AGREEMENT IS DELETED IN ITS ENTIRETY AND
         IS REPLACED WITH THE FOLLOWING LANGUAGE:

         Section 22.       Assignment

         Either  party may assign or delegate  its rights or  obligations  under
         this  Agreement,  without the consent of the other party,  to an entity
         that  acquires  all or  substantially  all of that party's  assets.  In
         addition,  Sprint  has the right to assign the IP  Services  portion of
         this  Agreement to a third party provided that such third party accepts
         the  obligation  to meet or exceed the IP  Services  performance  level
         requirements  set forth in this Agreement.  In the event Sprint divests
         its IP  Services  Business  unit  during the Term and such  divestiture
         directly  affects  any or all of the IP  Services  being  purchased  by
         Customer  under this  Agreement,  Sprint  will  waive  that  portion of
         Customer's  Shortfall  Liability,  if  any,  caused  directly  by  such
         divestiture.

         Except as provided  above,  neither  party will assign or delegate  its
         rights or obligations under this Agreement to any person,  corporation,
         or other entity  without the prior written  consent of the other party.
         Neither party will unreasonably withhold consent.

7.       THE AGREEMENT IS AMENDED BY ADDING A NEW SECTION 36 AS FOLLOWS:

         36.      Preferred ATM Provider -

                  SPRINT  must  be   Customer's   Preferred   Telecommunications
                  Services  Provider  for at  least  [**]  of its  domestic  ATM
                  services.

8.       ATTACHMENT  B,  DOMESTIC  PRICING,  SECTION  III  (MAINTENANCE)  OF THE
         AGREEMENT IS AMENDED BY DELETING ALL OF THE FOLLOWING LANGUAGE:

         Ascend Pipeline 75*        Next Day                   [**] each/month
                                    Repair/Return

         Ascend Pipeline 85*        Next Day                   [**] each/month
                                    Repair/Return

         *The  maintenance  price for the Ascend Pipeline 75 and Ascend Pipeline
         85 includes maintenance for two modems.

9.       ATTACHMENT  B,  DOMESTIC  PRICING,  SECTION  III  (MAINTENANCE)  OF THE
         AGREEMENT IS AMENDED BY DELETING  "BAY NETWORK  ROUTERS  (1)(4)" IN THE
         FIRST LINE OF THE FIRST TABLE AND REPLACING IT AS FOLLOWS:

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       4
<PAGE>



         Bay Networks Routers (1)(4)
         Bay Networks ARN Router
         SA 50
         SA 100
         Cisco 26XX
         The Pipeline family

10.      ATTACHMENT B, DOMESTIC PRICING, SECTION III (MAINTENANCE) IS AMENDED BY
         DELETING  THE PRICE OF "1% OF  LIST/MO"  IN THE FIRST LINE OF THE FIRST
         TABLE AND REPLACING IT WITH THE FOLLOWING TABLE:

         -----------------------------------------------------------------------

                                              Per Maintenance Call

         Contract Year               First 5 Hours              Each Add'l Hour
         -----------------------------------------------------------------------
                    2000                  [**]                        [**]
         -----------------------------------------------------------------------
                    2001                  [**]                        [**]
         -----------------------------------------------------------------------
                    2002                  [**]                        [**]
         -----------------------------------------------------------------------
                    2003                  [**]                        [**]
         -----------------------------------------------------------------------
                    2004                  [**]                        [**]
         -----------------------------------------------------------------------

11.      ATTACHMENT B, DOMESTIC PRICING,  SECTION III (MAINTENANCE),  IS AMENDED
         BY ADDING THE FOLLOWING AS NOTE 7.):

         7.) Customer will be charged a $3.00 Monthly  Recurring  Charge ("MRC")
         per router for software upgrades.

12.      ATTACHMENT B, DOMESTIC PRICING, SECTION VI (FRAME RELAY),  SUBSECTION A
         (ACCESS),  INCLUDING OPTION 1, OPTION 2 AND HOST ACCESS,  IS DELETED IN
         ITS ENTIRETY.

13.      ATTACHMENT B, DOMESTIC PRICING, SECTION VI (FRAME RELAY),  SUBSECTION B
         (ACCESS  CHANNELS),  NOTE 3 UNDER  PORTS  AND PVCS (1) IS  DELETED  AND
         REPLACED AS FOLLOWS:

            3.) SPRINT will charge Customer a monthly  recurring  charge ("MRC")
            in the  applicable  amount  from the  table  below  for each  remote
            Domestic Sprint Frame Relay port connected to a distribution  router
            (excludes access).

                          Port Bandwith               Monthly Recurring Charge
                          -------------               ------------------------
                               56 Kbps                     [**]
                              128 Kbps                     [**]
                              256 Kbps                     [**]
                              512 Kbps                     [**]
                              768 Kbps                     [**]
                             1536 Kbps                     [**]




[**] CONFIDENTIAL TREATMENT REQUESTED


                                       5
<PAGE>



14.      ATTACHMENT B, DOMESTIC PRICING, SECTION VI (FRAME RELAY),  SUBSECTION B
         (ACCESS  CHANNELS) IS AMENDED BY ADDING A NEW "NOTE 4" FOLLOWING "PORTS
         AND PVCS (1)" AS FOLLOWS:

         4.)      SPRINT will charge Customer a monthly  recurring charge in the
                  applicable  amount  from the  table  below  for each  Domestic
                  Sprint   Enhanced  (High  Speed)  Frame  Relay  (HSFR)  remote
                  Domestic port  connected to a  distribution  router  (excludes
                  access):

                          Port Bandwith               Monthly Recurring Charge
                          -------------               ------------------------
                                3 Mbps                      [**]
                                6 Mbps                      [**]
                                9 Mbps                      [**]
                               12 Mbps                      [**]
                               45 Mbps                      [**]

15.      ATTACHMENT B, DOMESTIC PRICING, SECTION VI (FRAME RELAY),  SUBSECTION B
         (ACCESS  CHANNELS) IS AMENDED BY ADDING A NEW "NOTE 5" UNDER "PORTS AND
         PVCS (1)" AS FOLLOWS:

         5.)      HSFR  ports are  subject  to  SPRINT's  approval  and are only
                  available  on SPRINT's  PSN2  network  with the 48  contiguous
                  states of the United States and the District of Columbia. HSFR
                  allows a customer to burst above T1 bandwidth between two HSFR
                  sites. HSFR PVCs are only offered with LAN service and require
                  a minimum CIR based on the lower of the two access  bandwidths
                  between two HSFR ports.  Customer must order a minimum PVC CIR
                  based on the following table:

                  --------------------------------------------------------------
                  Lower of the two access         Minimum PVC CIR
                  bandwiths

                  --------------------------------------------------------------
                        3 Mbps                    1.5 Mbps (1,536k) CIR
                  --------------------------------------------------------------
                        6 Mbps                    2.0 Mbps (2,048k) CIR
                  --------------------------------------------------------------
                        9 Mbps                    3.0 Mbps (3,072k) CIR
                  --------------------------------------------------------------
                       12 Mbps                    4.0 Mbps (4,096k) CIR
                  --------------------------------------------------------------
                           DS3                    4.0 Mbps (4,096k) CIR
                  --------------------------------------------------------------

16.      ATTACHMENT B, DOMESTIC PRICING, SECTION VI (FRAME RELAY),  SUBSECTION C
         (PVC)  (AS  AMENDED  IN   AMENDMENT   SEVEN)  IS  AMENDED  BY  DELETING
         SUBPARAGRAPH (B) IN ITS ENTIRETY AND REPLACING IT AS FOLLOWS:

         C.       PVC

         1.)      Domestic  Sprint  Frame Relay Burst  Express  (zero CIR) PVCs.
                  SPRINT will  charge  Customer a [**] fixed  monthly  recurring
                  charge for each  Domestic  Sprint  Frame Relay  Service  Burst
                  Express  (zero CIR) PVC  installed  or in  service  during the
                  Term. Customer is not eligible for standard Tariff Term/Volume
                  or Order term Discounts.

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       6
<PAGE>



         2.)      Domestic Sprint Enhanced  (High-Speed)  Frame Relay (zero CIR)
                  PVCs.  SPRINT  will  charge  Customer  a  [**]  fixed  monthly
                  recurring  charge  for each  Domestic  Sprint  Enhanced  (High
                  Speed)  Frame  Relay  (zero CIR) PVC  installed  or in service
                  during the Term.  Customer is not eligible for standard Tariff
                  Term/Volume or Order term Discounts.

         3.)      Domestic  Sprint Frame Relay Burst Express Plus (Reserved CIR)
                  PVCs.

                  SPRINT will charge Customer a fixed monthly  recurring  charge
                  ("MRC") in the applicable amount from the table below for each
                  Domestic  Sprint Frame Relay Burst Express Plus (Reserved CIR)
                  PVC installed or in service during the Term.

                           PVC Bandwidth                          MRC

                                    16Kbps                        [**]
                                    32Kbps                        [**]
                                  38.4Kbps                        [**]
                                    64Kbps                        [**]
                                   128Kbps                        [**]
                                   192Kbps                        [**]
                                   256Kbps                        [**]
                                   320Kbps                        [**]
                                   384Kbps                        [**]
                                   448Kbps                        [**]
                                   512Kbps                        [**]
                                   576Kbps                        [**]
                                   640Kbps                        [**]
                                   704Kbps                        [**]
                                   768Kbps                        [**]
                                   832Kbps                        [**]
                                   896Kbps                        [**]
                                   960Kbps                        [**]
                                  1024Kbps                        [**]

         4.)      Domestic  Sprint  Enhanced  Frame Relay (PSN2)  (Reserved CIR)
                  PVCs

                  SPRINT will charge Customer a fixed monthly  recurring  charge
                  in the  applicable  amount  from  the  table  below  for  each
                  Domestic  Sprint  Enhanced  Frame  Relay  (Reserved  CIR) PVCs
                  installed or in service on SPRINT's  PSN2  network  during the
                  term.

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       7
<PAGE>




                PVC Bandwith                                            MRC
                ------------                                            ---
                   1.5 Mbps CIR w/
                     3.0 Mbps PVC                                       [**]

                   2.0 Mbps CIR w/
                     6.0 Mbps PVC                                       [**]

                   3.0 Mbps CIR w/
                     9.0 Mbps PVC                                       [**]

                    4.0 Mbps CIR w/
                      12.0 Mbps PVC                                     [**]




17.      ATTACHMENT B, DOMESTIC PRICING,  SECTION X (ATM SERVICES) IS DELETED IN
         ITS ENTIRETY AND REPLACED AS FOLLOWS:

         X.       DOMESTIC SPRINT ATM SERVICES

         1.)      Pricing Components for Domestic SPRINT ATM Services.  Domestic
                  Sprint ATM Services are a high bandwidth fast packet switching
                  technology  based  on fixed  length  cells  of 53  bytes.  The
                  following are the primary  pricing  components of the standard
                  SPRINT Domestic ATM Services offerings.

                  a)       Local Access  Facilities  - Local  access  facilities
                           means the  physical  telco or leased line  connecting
                           customer's  premise to the Sprint ATM network.  Local
                           access facilities  compatible with Sprint ATM Service
                           include  T1, T3,  OC3c,  and OC12.  Either  SPRINT or
                           customer  may  provide the local  access  facilities.
                           Charges for  SPRINT-provided  local access facilities
                           include   local   access   line    charges,    Access
                           Coordination   Fees  ("ACF"),   and  Central   Office
                           Connection      ("COC")     fees.     Charges     for
                           customer-provided local access facilities include COC
                           and Entrance  Facility Charges  ("EFC").  SPRINT will
                           charge customer a non-recurring  charge and a monthly
                           recurring charge.

                  b)       Port - Port means the physical entrance to the Sprint
                           ATM network.  SPRINT will charge  customer a one-time
                           installation  charge  and a fixed  monthly  recurring
                           charge  for each ATM port.  Sprint ATM  Service  port
                           bandwidths include SPRINT DS1, NxDS1, DS3, and OC3.

                  c)       Permanent  Virtual  Circuit  ("PVC")  - PVC means the
                           pre-established  logical  connection  between two ATM
                           ports for information transfer. Sprint ATM PVCs carry
                           traffic  in one  direction.  The  three  PVC  service
                           categories are:

                           1.       Constant  Bit  Rate  ("CBR")  PVCs  are  for
                                    steady  traffic  that is  sensitive to delay
                                    variation.  For each CBR PVC,  customer will
                                    select the PVC's  Peak Cell Rate  ("PCR") to
                                    define  the  maximum   rate  at  which  user
                                    traffic  will be  allowed  to  traverse  the
                                    Sprint ATM network.

[**] CONFIDENTIAL TREATMENT REQUESTED

                                       8
<PAGE>

                           2.       Variable Bit Rate, Non-Real Time ("VBR-nrt")
                                    PVCs are for  "bursty"  data traffic that is
                                    insensitive  to small delay  variation.  For
                                    each VBR-nrt PVC,  customer  will select the
                                    PVC's  PCR to  define  the  maximum  rate at
                                    which  user   traffic  will  be  allowed  to
                                    traverse  the  Sprint ATM  network,  and the
                                    PVC's  Sustainable  Cell Rate  ("SCR").  SCR
                                    means  the  average  rate  of an  end-to-end
                                    connection measured over a defined interval.

                           3.       Unspecified  Bit Rate  ("UBR")  PVCs are for
                                    data traffic that is not  sensitive to delay
                                    variation.  For UBR PVCs, a specific PCR and
                                    SCR  are  not  assigned  and  cells  may  be
                                    transmitted up to the port bandwidth,  if it
                                    is  available.   UBR  PVCs  are  subject  to
                                    availability.

                           PCR and  SCR,  where  applicable,  are  available  in
                           increments of 64 Kbps and 1 Mbps.  Customer may order
                           multiple  one-way PVCs per port,  each with different
                           PCR  and  SCR,   subject  to  the  port's   allowable
                           bandwidth.  The total PCRs  associated  with  VBR-nrt
                           PVCs  will not  exceed  [**] of the  Sprint  ATM port
                           bandwidth, and the total SCRs associated with VBR-nrt
                           PVCs  will not  exceed  [**] of the  Sprint  ATM port
                           bandwidth.  For all PVCs' service categories,  SPRINT
                           will  charge  customer  a one time PVC  establishment
                           charge  per PVC and PVC  monthly  recurring  charges.
                           Monthly  recurring PVC charges  include  either Usage
                           Charges based on the  delivered  traffic per month or
                           fixed  monthly  recurring  charges based on the PVC's
                           PCR or SCR and service category.

                  d)       Switched Virtual Circuit  ("SVC").  SPRINT offers UBR
                           SVC service.  For SVCs, SPRINT charges a usage charge
                           per SVC based on the  delivered  traffic per megacell
                           per month.  With SVC  service,  the calling  party is
                           charged for the SVC usage  originating  from both the
                           calling  party and the called  party.  There is not a
                           non-recurring establishment charge for SVCs.

                  e)       Gateway and Service Interworking Charges.


                           1.     Domestic  Sprint ATM to Domestic  Sprint Frame
                                  Relay Service  Interworking.  Domestic  Sprint
                                  ATM to Domestic  Sprint  Frame  Relay  Service
                                  Interworking   allows  a  customer's  Domestic
                                  Sprint  ATM  Service to  communicate  with its
                                  Domestic Sprint Frame Relay Service.  Domestic
                                  Sprint  ATM to  Domestic  Sprint  Frame  Relay
                                  Service  Interworking  PVCs  carry  traffic in
                                  both directions. SPRINT will charge Customer a
                                  one-time and a monthly recurring charge, based
                                  on  the  PVC's   Peak   Cell   Rate   ("PCR").
                                  Additional  charges  apply  for  the  Domestic
                                  Sprint  Frame  Relay to  Domestic  Sprint  ATM
                                  Service Interworking PVCs.

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       9
<PAGE>

                           2.       Domestic  Sprint  ATM  to  Internet  Gateway
                                    Service.  Domestic  Sprint  ATM to  Internet
                                    Gateway Service provides Domestic Sprint ATM
                                    customers   with  access  to  the   Internet
                                    without investing in additional equipment or
                                    technology.  Customer  may  have at most one
                                    Gateway  PVC.   Internet  Service  Providers
                                    ("ISPs") may not purchase Gateway  services.
                                    SPRINT will charge Customer a one-time and a
                                    monthly  recurring  charge  for the  Gateway
                                    service.

                  f)       Customer Premise  Equipment ("CPE") - Certain CPE may
                           be  used  with  Sprint  ATM  Services.  Customer  may
                           purchase (at a one-time  price) or rent (at a monthly
                           recurring  rental  charge)  CPE  from  SPRINT  with a
                           SPRINT   CPE  Order   form.   SPRINT   must   certify
                           customer-provided  CPE. SPRINT will charge customer a
                           one-time  installation  charge for CPE  installed  by
                           SPRINT.

                  g)       Usage  Charges  -  Usage  Charges  are  the  variable
                           recurring  charges for use of SPRINT's  interexchange
                           communications  network,   determined  by  customer's
                           amount of  telecommunications  services used.  Unless
                           expressly stated in this Agreement,  Usage Charges do
                           not include taxes, interest,  surcharges, access line
                           charges,  access  facilities  charges,  other charges
                           associated  with  access,  fixed  recurring  charges,
                           feature charges, operator services charges, directory
                           assistance  charges,  installation  charges,  account
                           charges,  set up  fees,  report  charges,  and  other
                           non-recurring charges.

         2.)      Domestic Sprint ATM Pricing.  Customer will comply with SPRINT
                  Terms and  Conditions  for Sprint ATM  Services  (incorporated
                  into  this   Agreement).   SPRINT  will  charge  Customer  the
                  following for these Services:

                  a)       Domestic ATM Port Pricing.


                           1.       SPRINT   will   charge   Customer   a  fixed
                                    installation  charge  (non-recurring)  and a
                                    fixed monthly  recurring  charge  ("MRC") in
                                    the  applicable  amount from the table below
                                    for each Domestic  Sprint ATM port installed
                                    or in service  during  the Term.  Orders for
                                    all DS3,  OC3 and OC12  Sprint ATM ports are
                                    subject to availability and will be accepted
                                    at SPRINT's discretion.

                    ------------------------------------------------------------
                    Port Bandwidth       MRC               Non-Recurring
                                                        Installation Charge
                    DS3                  [**]                [**] - waived
                    ------------------------------------------------------------
                    OC3                  [**]                [**] - waived
                    ------------------------------------------------------------
                    OC12                 [**]                [**] - waived
                    ------------------------------------------------------------

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       10
<PAGE>



                  b)       Domestic ATM PVC Pricing.


                           1.       CBR PVCs. SPRINT will charge Customer a [**]
                                    fixed  monthly  recurring  charge  for  each
                                    one-way  Domestic  Sprint  ATM CBR PVC.  For
                                    PVCs with  Sustained  Cell Rate ("SCR") less
                                    than 1 Mbps,  SPRINT will charge Customer in
                                    64 Kbps  increments.  For PVCs  with a total
                                    SCR greater than or equal to 3 Mbps,  SPRINT
                                    will charge Customer in 1 Mbps increments.

                           2.       VBR and UBR PVCs. Rates for VBR and UBR PVCs
                                    will be quoted on an individual case basis.


                           3.       ATM  PVCs are not  eligible  for  volume  or
                                    Order term discounts.

                  c)       Installation Waivers. SPRINT will waive the following
                           installation charges:


                           1.       [**]   of    Domestic    Sprint   ATM   port
                                    installation (non-recurring) charges.

                           2.       [**] of Domestic Sprint ATM PVC installation
                                    (non-recurring)  charges  on PVCs  installed
                                    during the Term.

18.      ATTACHMENT B, DOMESTIC  PRICING,  IS AMENDED BY ADDING A NEW SECTION XI
         (DOMESTIC SPRINT IP SERVICES) AS FOLLOWS:

         XI. DOMESTIC SPRINT IP SERVICES

         1.)      Pricing  Components for Domestic Sprint IP Services.  Domestic
                  Sprint IP Services  consist of Internet  (public) and Intranet
                  (corporate  LAN)  network  access  to  allow  remote  users to
                  dial-in (via local or toll-free access) for access to hosts or
                  other resources available on these networks. The following are
                  the primary price  components of the standard  Domestic Sprint
                  IP Services offerings.

                  a)       Dial Access  Charges - SPRINT will charge  Customer a
                           Usage  Charge  per  remote  user per hour for  either
                           local or toll  free dial  access.  The  hourly  rates
                           cover  access  at any time from any  available  city.
                           Dial  access  Usage  Charges  do  not  include  local
                           telephone message and toll charges.

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       11
<PAGE>


                  b)       Sprint IP Dedicated Port Charges - SPRINT will charge
                           Customer a one-time  installation  charge and monthly
                           recurring  charges per Sprint IP Dedicated  port for:
                           (a) local  access  facilities  (per SPRINT FCC Tariff
                           No.  8),  (b) the  Sprint IP  Dedicated  port and (c)
                           Customer Premise  Equipment ("CPE") required for each
                           Sprint  IP  Dedicated  port.  The  following   access
                           methods are available for Sprint IP Dedicated  ports:
                           (a) Fractional DS1 (FSD1) for port bandwidths between
                           56 Kbps and 768 Kbps; (b) DS1 for a port bandwidth of
                           1536 Kbps;  (c) NxT1 Inverse  Multiplexer  (IMUX) for
                           port  bandwidths  between 3 Mbps and 6 Mbps; (d) NxT1
                           Multi-Megabit  (MMb)  for port  bandwidths  between 3
                           Mbps and 9 Mbps;  (e)  Fractional DS3 (FDS3) for port
                           bandwidths  between 6 Mbps and 34 Mbps; (f) DS3 for a
                           port  bandwidth  of 45  Mbps;  (g)  OC3  for  a  port
                           bandwidth  of  155  Mbps;  and  (h)  OC12  for a port
                           bandwidth  of 622 Mbps.  Orders for MMb,  FDS3,  DS3,
                           OC3,  and OC12  Sprint  IP  Dedicated  ports  will be
                           accepted at SPRINT's discretion.

                  c)       User ID  Charges  - SPRINT  will  charge  Customer  a
                           monthly   charge  per  user  ID  for  assignment  and
                           administration of the Customer-managed  user IDs with
                           fixed addressing or  SPRINT-managed  user Ids. SPRINT
                           may charge  Customer a monthly charge per user ID for
                           Customer-managed  user  IDs with  dynamic  addressing
                           subject to Customer's specific pricing structure.

                  d)       CPE  -  Certain  CPE  may  be  used  with  SPRINT  IP
                           Services.   Customer  may  purchase  (as  a  one-time
                           purchase  price)  or  rent  (at a  monthly  recurring
                           rental  charge)  CPE from  SPRINT  with a SPRINT  CPE
                           order  form.  SPRINT must  certify  Customer-provided
                           CPE.   SPRINT   will   charge   customer  a  one-time
                           installation charge for CPE installed by SPRINT.

                  e)       Sprint  Frame Relay and Sprint ATM Gateway  Charges -
                           Sprint,  at  customer's  request,   will  provide  to
                           Domestic Sprint IP Dedicated  service customer Sprint
                           Frame  Relay  to IP  Dedicated  gateway  service  and
                           Sprint ATM to IP Dedicated  gateway  service.  Sprint
                           will charge customer a one-time  installation  charge
                           and a monthly charge for each gateway PVC and gateway
                           port.

                  f)       Usage  Charge(s)  - Usage  Charges  are the  variable
                           recurring  charges for use of SPRINT's  interexchange
                           communications  network,   determined  by  customer's
                           amount of  telecommunications  services used.  Unless
                           expressly stated in this Agreement,  Usage Charges do
                           not include taxes, interest,  surcharges, access line
                           charges,  access  facilities  charges,  other charges
                           associated  with  access,  fixed  recurring  charges,
                           feature charges, operator services charges, directory
                           assistance  charges,  installation  charges,  account
                           charges,  set up  fees,  report  charges,  and  other
                           non-recurring charges.

                  g)       Internet Service Providers  ("ISPs") - If Customer is
                           or becomes an ISP,  additional  terms and  conditions
                           will apply.

                                       12
<PAGE>

         2.)      Domestic  Sprint IP Dedicated  Pricing.  Customer  will comply
                  with  SPRINT's  Standard  Terms and  Conditions  for  Domestic
                  SPRINT IP Services (incorporated into this Agreement).  SPRINT
                  will charge Customer the following for these Services:

                  a)       IP Dedicated Port Pricing.


                  1.       DS3 (45 Mbps) Ports.

                           i)       Except as provided in subsection  ii) below,
                                    SPRINT  will  charge  Customer an [**] fixed
                                    monthly  recurring  charge  and a [**] fixed
                                    non-recurring  installation  charge for each
                                    45 Mbps  Domestic  Sprint IP Dedicated  port
                                    with an  individual  Order term of 24 months
                                    or longer installed during the Term.

                           ii)      If  Customer  orders and  installs  at least
                                    eighteen  (18) 45 Mbps  Domestic  Sprint  IP
                                    Dedicated Ports with individual  Order terms
                                    of 24 months or longer,  SPRINT  will charge
                                    Customer  an [**]  fixed  monthly  recurring
                                    charge  and  a  [**]   fixed   non-recurring
                                    installation   charge   for   each  45  Mbps
                                    Domestic  Sprint IP  Dedicated  Port with an
                                    individual Order term of 24 months or longer
                                    installed during the Term.

                  2.       OC3 (155 Mbps) Transit Ports.

                           i)       SPRINT  will  charge  Customer  a [**] fixed
                                    monthly   recurring  charge  with  no  fixed
                                    non-recurring  installation  charge for each
                                    of  the  first   four  (4)  OC3   Sprint  IP
                                    Dedicated  Transit  ports with an individual
                                    Order term of 24 months or longer  installed
                                    during the Term.

                           ii)      Beginning  with  the  fifth  OC3  Sprint  IP
                                    Dedicated  Transit port installed during the
                                    Term,   SPRINT  will  charge  a  [**]  fixed
                                    monthly   recurring  charge  with  no  fixed
                                    non-recurring  installation  charge for each
                                    OC3 Sprint IP Dedicated Transit port with an
                                    individual Order term of 24 months or longer
                                    installed during the Term.

                  3.       OC3 (155 Mbps) Non-transit Ports.


                           i)       SPRINT  will  charge  Customer  a [**] fixed
                                    monthly   recurring  charge  with  no  fixed
                                    non-recurring  installation  charge for each
                                    of  the  first   four  (4)  OC3  (155  Mbps)
                                    Non-Transit  ports with an individual  Order
                                    term of 24 months or longer installed during
                                    the Term.

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       13
<PAGE>


                           ii)      Beginning  with  the  fifth  OC3  Sprint  IP
                                    Dedicated   Non-transit  port,  SPRINT  will
                                    charge a [**] fixed monthly recurring charge
                                    with  no  fixed  non-recurring  installation
                                    charge  for each  OC3  Sprint  IP  Dedicated
                                    Non-Transit  port with an  individual  Order
                                    term of 24 months or longer installed during
                                    the Term.

                  4.       OC12 (622 Mbps) Transit Ports - Flat Rated Ports.

                           i)       SPRINT  will  charge  Customer  a [**] fixed
                                    monthly   recurring  charge  with  no  fixed
                                    non-recurring  installation  charge for each
                                    of  the  first  five  (5)  OC12   Sprint  IP
                                    Dedicated  Transit  ports with an individual
                                    Order term of 24 months or longer  installed
                                    during the term.

                           ii)      Beginning  with the sixth  OC12  (622  Mbps)
                                    Sprint IP Dedicated  Transit port  installed
                                    during the Term, SPRINT will charge Customer
                                    a [**] fixed monthly  recurring  charge with
                                    no fixed  non-recurring  installation charge
                                    for each OC12  Sprint IP  Dedicated  Transit
                                    port  with an  individual  Order  term of 24
                                    months or longer installed during the term.

                           iii)     Beginning  with the eleventh OC12 (622 Mbps)
                                    Sprint IP Dedicated  Transit port  installed
                                    during the Term, SPRINT will charge Customer
                                    a [**] fixed monthly  recurring  charge with
                                    no fixed  non-recurring  installation charge
                                    for each OC12  Sprint IP  Dedicated  Transit
                                    port  with an  individual  Order  term of 24
                                    months or longer installed during the term.

                  5.       OC12 (622 Mbps) Transit Ports - Burstable Ports.

                           i)       SPRINT will charge  Customer a fixed monthly
                                    recurring charge with no fixed non-recurring
                                    installation  charge  based  upon the  table
                                    below for each of the  Sprint  IP  Dedicated
                                    Transit  Burstable  ports with an individual
                                    Order term of 24 months or longer  installed
                                    during the term.
<TABLE>
<CAPTION>
                  ----------------------------------------------------------------------------------------
                         Bandwidth            Percentage
                           Tiers                 Tiers           Ports 1 - 5     Ports 6 - 10    Ports 11+
                  ----------------------------------------------------------------------------------------
<S>                          <C>    <C>           <C>             <C>             <C>            <C>
                             0.00 - 155.00         [**]            [**]           [**]             [**]
                  ----------------------------------------------------------------------------------------
                          155.021 - 310.00         [**]            [**]           [**]             [**]
                  ----------------------------------------------------------------------------------------
                           310.01 - 465.00         [**]            [**]           [**]             [**]
                  ----------------------------------------------------------------------------------------
                           465.01 - 622.00         [**]            [**]           [**]             [**]
                  ----------------------------------------------------------------------------------------

</TABLE>

                           Customer  may  convert   from  a  burstable   pricing
                           structure  to a  fixed  rate  pricing  structure  (or
                           vice-versa), one time during a port's order term.

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       14
<PAGE>


                  6.       As Customer installs a sufficient  quantity of Sprint
                           IP Dedicated ports to qualify for lower pricing under
                           Subsections  XI.2.)a)1 through XI.2)a)5 above, Sprint
                           will  proactively  apply  the  adjusted  rates to the
                           existing  Sprint IP Dedicated  Transit or Non-transit
                           ports that  qualify for such  pricing.  The new rates
                           will be  effective  on the 1st day of the 1st billing
                           month after installation has been completed.

                  7.       Orders for all IMUX,  FDS3,  45Mbps,  OC3 (155 Mbps),
                           OC12  (622  Mbps)  or  greater  bandwidth  Sprint  IP
                           Dedicated  ports will be accepted  at  SPRINT's  sole
                           discretion.

                  8.       The monthly  recurring  charges  above do not include
                           charges  for Local  Access  Facilities,  CPE or other
                           rates and charges described in the Agreement. Charges
                           for  Local  Access   Facilities   are  set  forth  in
                           Attachment B, Section XIII of the Agreement.

                  9.       Customer is not  eligible to receive  standard  Order
                           term discounts.

19.    ATTACHMENT  B, DOMESTIC  PRICING,  IS AMENDED BY ADDING A NEW SECTION XII
       (DOMESTIC CLEARLINE AND OC3C PRIVATE LINE SERVICES) AS FOLLOWS:

       XII.  DOMESTIC  CLEARLINE AND OC3C PRIVATE LINE  SERVICES.  - SPRINT WILL
       CHARGE CUSTOMER THE FOLLOWING FOR THESE SERVICES.

                  1.)      Clearline DDS,  Fractional  Clearline 1.5,  Clearline
                           1.5, Clearline 45.


                           a)       Clearline  DDS,  Fractional  Clearline  1.5.
                                    SPRINT will charge  Customer a fixed monthly
                                    recurring charge ("MRC") per circuit and per
                                    IXC circuit  mile in the  applicable  amount
                                    from the table below, for the  interexchange
                                    portion   of    point-to-point    interstate
                                    Clearline  DDS,  Fractional  Clearline  1.5,
                                    Clearline   1.5   bandwidth   private   line
                                    circuits  installed or in service during the
                                    Term.

<TABLE>
<CAPTION>

                          ----------------------------------------------------------------------------------
                          Circuit           MRC per             MRC per                Minimum
                          Bandwidth         circuit             IXC circuit mile       Charge
                          ----------------------------------------------------------------------------------

<S>                       <C>               <C>                <C>                    <C>
                          56 Kbps           [**]                [**]                   -
                          ----------------------------------------------------------------------------------

                          512 Kbps          [**]                [**]                   -
                          ----------------------------------------------------------------------------------

                          T1                [**]                [**]                   [**]
                          ----------------------------------------------------------------------------------
</TABLE>

                           b)       Clearline 45. SPRINT will charge  customer a
                                    fixed monthly  recurring  charge ("MRC") per
                                    circuit  and  per  IXC  circuit  mile in the
                                    applicable  amount from the table below, for
                                    the interexchange  portion of point-to-point
                                    interstate   Clearline   45   private   line
                                    circuits  installed or in service during the
                                    Term.
<TABLE>
c
                          ----------------------------------------------------------------------------------
                          Circuit           MRC per             MRC per                Minimum
                          Bandwidth         circuit             IXC circuit mile       Charge
                          ----------------------------------------------------------------------------------
<S>                         <C>            <C>                 <C>                    <C>
                          DS3               [**]                [**]                   [**]
                          ----------------------------------------------------------------------------------
                          OC3               [**]                [**]                   [**]
                          ----------------------------------------------------------------------------------
</TABLE>

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       15
<PAGE>


                           c)       Orders  for   Clearline  45  (DS3)  and  OC3
                                    private  lines will be  accepted in SPRINT's
                                    sole   discretion,   subject   to   capacity
                                    availability.

                           d)       Non-recurring  installation  charges  do not
                                    apply  for  the  interexchange   portion  of
                                    Customer's Clearline private line circuits.

                           e)       No other discounts apply.

                  2.)      IXC Private Line Backhaul Waivers.


                           a)       OC3c Backhaul  Waiver for SAVVIS's  Telerate
                                    locations.  For SAVVIS's Telerate  locations
                                    described  in  columns  (2)  and  (3) of the
                                    table  below,  SPRINT will waive the monthly
                                    recurring  charge  for one OC3c IXC  private
                                    line  backhaul from SPRINT's POP serving the
                                    applicable  Telerate location to the closest
                                    SPRINT/SAVVIS   collocated   equipment  site
                                    listed in column (1) of the table below.
<TABLE>
<CAPTION>

                  ---------------------------------------------------------------------------------------------------
                  (1)                      (2)                    (3)                      (4)
                  SPRINT/SAVVIS            Telerate Location      Telerate Address         Number of SPRINT IXC
                  Collocation Site                                                         Backhaul Miles from
                                                                                           SPRINT's POP for the
                                                                                           Telerate locations in
                                                                                           (2) and (3) to the site
                                                                                           in (1)
                  ---------------------------------------------------------------------------------------------------
<S>                                         <C>                  <C>                      <C>
                  Atlanta, GA              SAVVIS/Atlanta, GA     3340 Peachtree Rd. NE    0
                                                                  2nd Floor
                                                                  Atlanta, GA  30326
                  ---------------------------------------------------------------------------------------------------
                  Boston, MA               SAVVIS/Boston, MA      99 Summer Street, 12th   0
                                                                  Floor
                                                                  Boston, MA  02110
                  ---------------------------------------------------------------------------------------------------
                  New York, NY             SAVVIS/New York, NY    1 State Street           0
                                                                  New York, NY  10004
                  ---------------------------------------------------------------------------------------------------
                  Cheyenne, WY             SAVVIS/Denver, CO      999 18th St., Suite 215  95
                                                                  North Tower
                                                                  Denver, CO  80202
                  ---------------------------------------------------------------------------------------------------
                  Chicago, IL              SAVVIS/Chicago, IL     10 South LaSalle         0
                                                                  Street,
                                                                  24th Fl.
                                                                  Chicago, IL  60603
                  ---------------------------------------------------------------------------------------------------
                  Ft. Worth, TX            SAVVIS/Dallas, TX      600 N. Pearl Street      31
                                                                  8th Fl.
                                                                  Dallas, TX  75201
                  ---------------------------------------------------------------------------------------------------
                  Orlando, FL              SAVVIS/Miami, FL       First Union Financial    199
                                                                  200 South Biscayne
                                                                  Blvd.
                                                                  Ste. 950
                                                                  Miami, FL  33024
                  ---------------------------------------------------------------------------------------------------
                  Oroville, CA             SAVVIS/San             444 Market St. 13th Fl.  129
                                           Francisco, CA          San Francisco, CA
                                                                  94111
                  ---------------------------------------------------------------------------------------------------
                  Relay, MD                SAVVIS/Washington DC   1411 K Street NW         36
                                                                  Washington, DC  20036
                  ---------------------------------------------------------------------------------------------------
                  Rialto, CA               SAVVIS/Los Angeles,    515 South Flower, 10th   51
                                           CA                     Fl
                                                                  Los Angeles, CA  90071
                  ---------------------------------------------------------------------------------------------------
                  St. Paul, MN             SAVVIS/Minneapolis,    511 11th Avenue          11
                                           MN                     Minneapolis, MN  55415
                  ---------------------------------------------------------------------------------------------------
</TABLE>



                           b)       DS3 Backhaul  Waiver for  Customer's  SAVVIS
                                    Locations.  For Customer's  SAVVIS locations
                                    described  in  columns  (2)  and  (3) of the
                                    table  below,  SPRINT will waive the monthly
                                    recurring  charge for one  Clearline DS3 IXC
                                    private  line  backhaul  from  SPRINT's  POP
                                    serving the  applicable  SAVVIS  location to
                                    the   closest    SPRINT/SAVVIS    collocated
                                    equipment  site  described  in column (1) of
                                    the table below.

                                       16
<PAGE>

<TABLE>
<CAPTION>

                ---------------------------------------------------------------------------------------------------
                 (1)                       (2)                    (3)                      (4)
                 SPRINT/SAVVIS             SAVVIS Location        SAVVIS Address           Number of SPRINT IXC
                 Collocation Site                                                          Backhaul Miles from
                                                                                           SPRINT's POP for the
                                                                                           SAVVIS locations in (2)
                                                                                           and (3) to the site in
                                                                                           (1)
                ---------------------------------------------------------------------------------------------------
<S>                                        <C>                    <C>                      <C>
                 Atlanta, GA               SAVVIS/Atlanta, GA     55 Marietta              0
                                                                  19th Floor
                                                                  Atlanta, GA  30303
                ---------------------------------------------------------------------------------------------------
                 Boston, MA                SAVVIS/Boston, MA      230 Congress             0
                                                                  Boston, MA
                ---------------------------------------------------------------------------------------------------
                 Chicago, IL               SAVVIS/Chicago, IL     600 S. Federal           5
                                                                  Suite 400
                                                                  Chicago, IL  60607
                ---------------------------------------------------------------------------------------------------
                 Ft. Worth, TX             SAVVIS/Dallas, TX      13601 Preston Road       41
                                                                  Bldg. A
                                                                  Cage E3
                                                                  Dallas, TX  75240
                ---------------------------------------------------------------------------------------------------
                 Satsuma, TX               SAVVIS/Houston, TX     1301 Fannin Street       21
                                                                  Suite 1290
                                                                  Houston, TX  77002
                ---------------------------------------------------------------------------------------------------
                 Rialto, CA                SAVVIS/Los Angeles,    700 S. Flower Street     51
                                           CA                     3rd Floor
                                                                  Los Angeles, CA  90017
                 ---------------------------------------------------------------------------------------------------
                 New York, NY              SAVVIS/New York, NY    67 Broad Street          0
                                                                  8th Floor
                                                                  New York, NY  10004
                 ---------------------------------------------------------------------------------------------------
                 Oroville, CA              SAVVIS/Santa Clara,    S. Bay                   153
                                           CA                     3450 Garrett Drive
                                                                  Santa Clara, CA  95054
                 ---------------------------------------------------------------------------------------------------
                 Seattle, WA               SAVVIS/Seattle, WA     2001 6th Ave., Ste.      0
                                                                  2700
                                                                  27th Floor, Seattle,
                                                                  WA  98121
                 ---------------------------------------------------------------------------------------------------
                 Relay, MD                 SAVVIS/Washington DC   1331 F Street NW, 2nd    36
                                                                  Floor
                                                                  Washington, DC 20004
                 ---------------------------------------------------------------------------------------------------
</TABLE>


         c) Backhaul Waiver Eligibility.  If the SPRINT POP at the SPRINT/SAVVIS
         collocation  site  specified  in one of the tables  above serves both a
         Telerate location listed in subsection  XII.2.)a) and a SAVVIS location
         listed in  subsection  XII.2.)b),  then  SPRINT  will waive the monthly
         recurring charge for one OC3 backhaul private line and one DS3 backhaul
         private  line,  regardless  which  location  (Telerate  or  SAVVIS)  is
         connected to the DS3 or OC3 backhaul private line.

20.      ATTACHMENT B, DOMESTIC PRICING, IS AMENDED BY ADDING A NEW SECTION XIII
         (DOMESTIC LOCAL ACCESS FACILITIES) AS FOLLOWS:

         XIII.    DOMESTIC LOCAL ACCESS FACILITIES.

                  1.)      General.   The  pricing  for  Domestic  Local  Access
                           Facilities  is  provided  in this  Section  under two
                           different   arrangements:    SPRINT-Provided   Access
                           ("SPA") or Customer  Provided  Access  ("CPA").  Each
                           pricing   arrangement  is  sub-divided  into  several
                           options   depending   on  whether  the  end  location
                           requesting the Domestic Local Access  Facilities is a
                           SAVVIS  Company  Site or a SAVIS  Customer  Site  (as
                           defined in Section 2(b) above).

                                       17
<PAGE>

                  2.)      SPRINT-Provided Access ("SPA").


                           a)       SPRINT-Provided  Access  to  SAVVIS  Company
                                    Sites.


                                    SPRINT will waive  non-recurring and monthly
                                    recurring  COC and ACF  charges  for  SAVVIS
                                    Company Sites requiring  SPRINT-provided  56
                                    Kbps,  T-1, T-3, OC3 and OC12 Domestic local
                                    access   lines.   SPRINT   will   waive  any
                                    termination  liability for early termination
                                    of  Domestic  56  Kbps  or T1  local  access
                                    lines.  If Customer  terminates any Domestic
                                    T3 local  access  line before the end of the
                                    applicable access line Order term,  Customer
                                    will  pay   SPRINT   an  early   termination
                                    liability unless Customer orders,  within 10
                                    days  of  requesting   the   disconnect,   a
                                    Domestic  SPRINT  T3  or  greater  bandwidth
                                    local  access  line  using  the same  access
                                    provider  and with an Order term equal to or
                                    greater  than  the  replaced  access  line's
                                    order  term.  Customer  will pay  SPRINT any
                                    early  termination  liabilities  assessed by
                                    the  domestic   local  access   provider  if
                                    Customer  terminates  OC3c or OC12  domestic
                                    local access liens before the  expiration of
                                    the applicable access line Order term.

                           b)       SPRINT-Provided  Access to  SAVVIS  Customer
                                    Sites.


                                    SPRINT will charge  Customer the  applicable
                                    amounts set forth herein for SPRINT-provided
                                    access to SAVVIS Customer Sites. SPRINT will
                                    waive any  termination  liability  for early
                                    termination  of Domestic 56 Kbps or T1 local
                                    access  lines.  If Customer  terminates  any
                                    Domestic T3 local access line before the end
                                    of the  applicable  access  line Order term,
                                    Customer    will   pay   SPRINT   an   early
                                    termination    liability   unless   Customer
                                    orders,  within  10 days of  requesting  the
                                    disconnect,  a Domestic SPRINT T3 or greater
                                    bandwidth  local  access line using the same
                                    access provider and with an Order term equal
                                    to  or  greater  than  the  replaced  access
                                    line's order term.  Customer will pay SPRINT
                                    any early termination  liabilities  assessed
                                    by the  domestic  local  access  provider if
                                    Customer terminates any OC3 or OC12 domestic
                                    access  lines before the  expiration  of the
                                    applicable access line Order term.

                                   1.       56 Kbps and T1 Local Access Lines to
                                            SAVVIS Customer  Sites.  SPRINT will
                                            charge     Customer     the    fixed
                                            non-recurring  and monthly recurring
                                            charges  in  the  applicable  amount
                                            below  for  SPRINT-provided  56 Kbps
                                            and T1 local  access lines to SAVVIS
                                            Customer Sites.

                                             (a)      SPRINT-provided   56  Kbps
                                                      local   access   lines  to
                                                      SAVVIS Customer Sites.
<TABLE>
<CAPTION>

                                   ---------------------------------------------------------------------------------
                                          Access
                                         Bandwidth                        MRC                          NRC
                                   ---------------------------------------------------------------------------------
<S>                                <C>                           <C>                         <C>
                                   56 Kbps                Tariff 8 Non-Term MRC Rate with      [**]
                                                          [**]Discount.
                                   ---------------------------------------------------------------------------------
</TABLE>

                                       18
<PAGE>

<TABLE>
<CAPTION>

                                            (b)      SPRINT-provided T1 local access to SAVVIS Customer Sites.

                                   ------------------------------------------------------------------------------------
                                        Access        Non-Term Tariff 8 MRC Rate
                                       Bandwith                                             MRC                NRC
                                   ------------------------------------------------------------------------------------

<S>                                 <C>              <C>                           <C>                    <C>
                                   T1                 Up to [**]                   Tariff 8 Non-Term Rate  [**]
                                   ------------------------------------------------------------------------------------
                                   T1                 [**]                         [**]                    [**]
                                   ------------------------------------------------------------------------------------

                                   T1                 [**]                         [**]                    [**]
                                   ------------------------------------------------------------------------------------

                                   T1                 [**]                         [**]                    [**]
                                   ------------------------------------------------------------------------------------

                                   T1                 [**]                         [**]                    [**]
                                   ------------------------------------------------------------------------------------

                                   T1                 Greater than [**]            Tariff 8 Non-Term Rate  [**]
                                   ------------------------------------------------------------------------------------
</TABLE>


                                            (c)      The  rates   and   discount
                                                     percentages   in   Table  6
                                                     below  apply if the  SAVVIS
                                                     Customer  Site  NPA-NXX (i)
                                                     is in  one  of  the  LATA's
                                                     listed  column 2 of Table 2
                                                     below.

                                                     TABLE 2.
<TABLE>
<CAPTION>

                           --------------------------------------------------------------
<S>                        <C>                                   <C>
                           (1)                                   (2)
                           City Name/State                       LATA
                           --------------------------------------------------------------
                           Atlanta, GA                           [**]
                           --------------------------------------------------------------
                           Boston, MA                            [**]
                           --------------------------------------------------------------
                           Chicago, IL                           [**]
                           --------------------------------------------------------------
                           Dallas, TX                            [**]
                           --------------------------------------------------------------
                           Denver, CO                            [**]
                           --------------------------------------------------------------
                           Houston, TX                           [**]
                           --------------------------------------------------------------
                           Los Angeles, CA                       [**]
                           --------------------------------------------------------------
                           Miami, FL                             [**]
                           --------------------------------------------------------------
                           Minneapolis, MN                       [**]
                           --------------------------------------------------------------
                           New York, NY                          [**]
                           --------------------------------------------------------------
                           San Francisco, CA                     [**]
                           --------------------------------------------------------------
                           Seattle, WA                           [**]
                           --------------------------------------------------------------
                           Washington DC with Baltimore, MD      [**] & [**]
                                                                 (Baltimore Only)
                           --------------------------------------------------------------
</TABLE>

                                    TABLE 6.
<TABLE>
<CAPTION>

    ------------------------------------------------------------------------------------------------------
                                                                                              Customer
    Circuit Bandwidth     Access MRC      Access NRC     ACF MRC/ ACF    COC MRC / COC NRC   Connection
                                                              NRC                              Fee MRC
    ------------------------------------------------------------------------------------------------------
<S>                 <C>              <C>                 <C>              <C>               <C>
    DS3                 Individual      Individual      Waived/ Waived   [**] MRC/          Waived
                        Case Basis -    Case Basis -                     Waived NRC
                        WinNewt         WinNewt
    ------------------------------------------------------------------------------------------------------
    OC3                 Individual      Individual      Waived/ Waived   [**] MRC/          Individual
                        Case Basis      Case Basis                       Waived NRC         Case Basis
    ------------------------------------------------------------------------------------------------------
</TABLE>

[**] CONFIDENTIAL TREATMENT REQUESTED

                                       19
<PAGE>


                                             (d)      The rates in Table 8 below
                                                      apply   if   the    SAVVIS
                                                      Customer   Site   is   not
                                                      covered    under   Section
                                                      B.2(a) above.

                                    TABLE 8.
<TABLE>
<CAPTION>

---------------------------------------------------------------------------------------------------------------------
                                            IXC        IXC Per Mile           Customer                      ADF/
Circuit          Access        Access       Fixed MRC  MRC           IXC      Connection  ACF      COC      COC
Bandwidth        MRC           NRC                                   NRC      Fee         MRC      MRC      NRC
---------------------------------------------------------------------------------------------------------------------
<S>               <C>          <C>          <C>        <C>          <C>       <C>        <C>      <C>      <C>
DS3              Individual    Individual   [**]       [**]Per       Waived   Waived      Waived   Waived   Waived
                 Case Basis-   Case Basis-             Mile with
                 WinNewt       WinNewt                 [**]Minimum
---------------------------------------------------------------------------------------------------------------------
OC3c             Individual    Individual   [**]       [**]Per       Waived   Individual  Waived   Waived   Waived
                 Case Basis    Case Basis              Mile with              Case Basis
                                                       [**]Minimum
---------------------------------------------------------------------------------------------------------------------
</TABLE>

                  2.)      Customer-Provided Access ("CPA").


                           a)       Customer-Provided  Access to SAVVIS  Company
                                    Sites.

                                    SPRINT will charge  Customer  the  following
                                    charges  for  Customer-provided   access  to
                                    SAVVIS Company Sites. Local access providers
                                    under Customer-provided  access arrangements
                                    are subject to SPRINT's approval.

                                    1.      Customer-Provided     Access      to
                                            SPRINT's  POP over a Common Entrance
                                            Facility.

                                            SPRINT will waive  non-recurring and
                                            monthly recurring  Entrance Facility
                                            charges  ("EFC") and COC charges for
                                            SAVVIS   Company   Sites   requiring
                                            Customer-provided 56 Kbps, T-1, T-3,
                                            OC3c   and   OC12    Local    Access
                                            Facilities  to  Sprint's  POP over a
                                            common entrance facility.

                                    2.      Customer-Provided     Access      to
                                            SPRINT's  LEC   Serving  Wire Center
                                            over a Common Entrance Facility.

                                            The rates in Table 1 below apply for
                                            COC and ECF for SAVVIS Company Sites
                                            requiring Customer-provided 56 Kbps,
                                            T-1, T-3, OC3c and OC12 Local Access
                                            Facilities  to SPRINT's  LEC Serving
                                            Wire Center  over a Common  Entrance
                                            Facility:

[**] CONFIDENTIAL TREATMENT REQUESTED


                                       20
<PAGE>
<TABLE>
<CAPTION>

                                                        TABLE 1.

                        ---------------------------------------------------------------------------
                                         COC           COC                            EFC
                        Speed            MRC           NRC           EFC MRC          NRC
                        ---------------------------------------------------------------------------

<S>                     <C>              <C>           <C>           <C>             <C>
                        56 Kbps          Waived        Waived        [**]             Waived
                        ---------------------------------------------------------------------------

                        T-1              Waived        Waived        [**]             Waived
                        ---------------------------------------------------------------------------

                        DS3              Waived        Waived        [**]             Waived
                        ---------------------------------------------------------------------------

                        OC3c             Waived        Waived        [**]             Waived
                        ---------------------------------------------------------------------------

                        OC12             Waived        Waived        [**]             Waived
                        ---------------------------------------------------------------------------

</TABLE>


                           (b)      Customer-Provided  Access to SAVVIS Customer
                                    Sites.


                                    SPRINT will charge  Customer  the  following
                                    for   Customer-provided   access  to  SAVVIS
                                    Customer Sites. Local access providers under
                                    Customer-provided  access  arrangements  are
                                    subject to SPRINT approval.

                                    1.       Customer-Provided     Access     to
                                             SPRINT's POP over a Common Entrance
                                             Facility.

                                             (a)     56 Kbps and T1 Local Access
                                                     Facilities     to    SAVVIS
                                                     Customer Sites.

                                                     SPRINT      will      waive
                                                     non-recurring  and  monthly
                                                     recurring   EFC   and   COC
                                                     charges for SAVVIS Customer
                                                     Sites             requiring
                                                     Customer-provided  56  Kbps
                                                     or   T-1    Local    Access
                                                     Facilities  to SPRINT's POP
                                                     over  a   common   entrance
                                                     facility.

                                             (b)     T3 and  OC3c  Local  Access
                                                     Facilities     to    SAVVIS
                                                     Customer Sites.

                                                     The  rates in Table 2 below
                                                     apply  for  COC and ECF for
                                                     SAVVIS    Customer   Sites,
                                                     located    in   the   LATAs
                                                     detailed   in  Table  2  of
                                                     Section 2.b.2.a., requiring
                                                     Customer-provided   T3   or
                                                     OC3c      Local      Access
                                                     Facilities  to SPRINT's POP
                                                     over  a   common   entrance
                                                     facility.

<TABLE>
<CAPTION>
                                                 TABLE 2.
                         -----------------------------------------------------------------
                         Circuit Bandwidth   COC              COC           EFC
                                             MRC              NRC           MRC/NRC
                         -----------------------------------------------------------------
<S>                        <C>               <C>              <C>           <C>
                         T-3                 [**]             Waived        Waived
                         -----------------------------------------------------------------
                         OC3c                [**]             Waived        Waived
                         -----------------------------------------------------------------
</TABLE>

                                       21
<PAGE>

                                    2.       Customer-Provided     Access     to
                                             SPRINT's  LEC  Service  Wire Center
                                             over a Common Entrance Facility.

                                             (a)     56 Kbps and T1 Local Access
                                                     Facilities     to    SAVVIS
                                                     Customer Sites.

                                             (b)     The  rates in Table 3 below
                                                     apply  for  COC and ECF for
                                                     SAVVIS    Customer    Sites
                                                     requiring Customer-provided
                                                     56 Kbps or T1 Local  Access
                                                     Facilities  to SPRINT's LEC
                                                     Serving  Wire Center over a
                                                     common entrance facility.

<TABLE>
<CAPTION>
                                                            TABLE 3.
                         --------------------------------------------------------------------------------
                         Circuit Bandwidth   COC              COC           EFC            EFC
                                             MRC              NRC           MRC            NRC
                         --------------------------------------------------------------------------------
<S>                      <C>                <C>               <C>           <C>            <C>
                         56 Kbps             [**]             Waived        [**]           Waived
                         --------------------------------------------------------------------------------
                         T-1                 [**]             Waived        [**]           Waived
                         --------------------------------------------------------------------------------
</TABLE>

                                             (c)     T3 and  OC3c  Local  Access
                                                     Facilities     to    SAVVIS
                                                     Customer Sites.


                                                     The  rates in Table 4 below
                                                     apply  for  COC and ECF for
                                                     SAVVIS    Customer    Sites
                                                     located    in   the   LATAs
                                                     detailed   in  Table  2  of
                                                     Section 2.b.2.a., requiring
                                                     Customer-provided   T3   or
                                                     OC3c      Local      Access
                                                     Facilities  to SPRINT's LEC
                                                     Serving  Wire Center over a
                                                     common entrance facility.

<TABLE>
<CAPTION>
                                                            TABLE 4.
                         --------------------------------------------------------------------------------
                         Circuit Bandwidth   COC              COC           EFC            EFC
                                             MRC              NRC           MRC            NRC
                         --------------------------------------------------------------------------------
<S>                        <C>               <C>              <C>          <C>           <C>
                         T-3                 [**]             Waived        [**]           Waived
                         --------------------------------------------------------------------------------
                         OC3c                [**]             Waived        [**]           Waived
                         --------------------------------------------------------------------------------
</TABLE>

21.      ALL OTHER TERMS AND  CONDITIONS IN THE  AGREEMENT,  NOT AMENDED  ABOVE,
         WILL REMAIN IN EFFECT.  THIS AMENDMENT AND ANY  INFORMATION  CONCERNING
         ITS TERMS AND CONDITIONS ARE SPRINT'S  PROPRIETARY  INFORMATION AND ARE
         GOVERNED BY THE PARTIES'  NONDISCLOSURE  AGREEMENT.  ANY CHANGE TO THIS
         AMENDMENT  IS SUBJECT TO WRITTEN  ACCEPTANCE  BY A SPRINT  OFFICER.  TO
         BECOME EFFECTIVE, THIS AMENDMENT MUST BE:

A.       Signed by an authorized representative of Customer;

  [**] CONFIDENTIAL TREATMENT REQUESTED

                                       22
<PAGE>

          B.      Delivered to SPRINT on or before May 31, 2000; and

          C.      Signed by a SPRINT officer or authorized designee.



SAVVIS COMMUNICATIONS                           SPRINT COMMUNICATIONS
CORPORATION                                     COMPANY L.P.

By: /s/ James Mori                              By: /s/ Kevin Kunkel
    ----------------------------------------        ---------------------------

Name: James Mori                                Name: Kevin Kunkel
     ---------------------------------------          -------------------------
Title: EVP GM Americas                          Title: VP
       -------------------------------------           ------------------------

Date: 5/24/00                                   Date: 7-10-00
      --------------------------------------          -------------------------