SAVVIS COMMUNICATIONS CORP
S-1/A, 2000-01-06
BUSINESS SERVICES, NEC
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   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 6, 2000
                                                     REGISTRATION NO. 333-90881
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                      SECURITIES AND EXCHANGE COMMISSION

                            WASHINGTON, D.C. 20549
                              ------------------

                                AMENDMENT NO. 4

                                      TO
                                   FORM S-1
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                              ------------------
                       SAVVIS COMMUNICATIONS CORPORATION
            (Exact name of registrant as specified in its charter)
<TABLE>
<S>                                   <C>                              <C>
                DELAWARE                          6719                       43-1809960
  (State or other jurisdiction of     (Primary Standard Industrial        (I.R.S. Employer
  incorporation or organization)       Classification Code Number)     Identification Number)
</TABLE>

                              ------------------
                       SAVVIS COMMUNICATIONS CORPORATION
                          12007 SUNRISE VALLEY DRIVE
                               RESTON, VA 20191
                                 (703) 453-7500
       (Address, including zip code, and telephone number,  including area code,
              of registrant's principal executive offices)
                              ------------------
                            STEVEN M. GALLANT, ESQ.
                 VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY
                       SAVVIS COMMUNICATIONS CORPORATION
                          12007 SUNRISE VALLEY DRIVE
                               RESTON, VA 20191
                                (703) 453-7500
(Name,  address,  including zip code, and telephone number, including area code,
                             of agent for service)
                              ------------------
                                  Copies to:

<TABLE>
<S>                                                    <C>
CHRISTINE M. PALLARES, ESQ.                            ANDREW R. SCHLEIDER, ESQ.
   HOGAN & HARTSON L.L.P.                                 SHEARMAN & STERLING
      885 THIRD AVENUE                                    599 LEXINGTON AVENUE
      NEW YORK, NY 10022                                   NEW YORK, NY 10022
         (212) 409-9800                                      (212) 848-4000
</TABLE>
                              ------------------
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after this registration statement becomes effective.
     If any of the securities being registered on this form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, check the following box. [ ]
     If this form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the  Securities  Act,  check the following box and
list the Securities Act registration  statement number of the earlier  effective
registration statement for the same offering. [ ]
     If this form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]
     If this form is a  post-effective  amendment  filed pursuant to Rule 462(d)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]
     If  delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]
<PAGE>

                              ------------------
     THE  REGISTRANT  HEREBY  AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES  AS  MAY  BE  NECESSARY  TO  DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL  FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT  SHALL  THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE  SECURITIES  ACT  OF  1933, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION,  ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                     PART II

                                EXPLANATORY NOTE

                    THIS  AMENDMENT IS BEING FILED SOLELY TO
                    FILE  EXHIBITS  10.13,   10.14,   10.15,
                    10.16,   10.17,   10.18,  10.19,  10.20,
                    10.21, 10.22, 10.23 AND 10.24.

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     The  following  table  sets  forth  all  fees  and expenses, other than the
underwriting  discounts and commissions, payable by the Registrant in connection
with  the  sale  of  the  common  stock  being registered. All amounts shown are
estimates except for the SEC registration fee and the NASD filing fee.

<TABLE>
<CAPTION>
                                                           AMOUNT
                                                       -------------
<S>                                                    <C>
       SEC registration fee ........................    $   97,944
       NASD filing fee .............................        30,500
       Nasdaq National Market listing fee ..........        95,000
       Blue sky fees and expenses ..................        10,000
       Accounting fees and expenses ................       500,000
       Legal fees and expenses .....................       500,000
       Printing and engraving expenses .............       450,000
       Transfer agent fees and expenses ............         3,500
       Miscellaneous expenses ......................       263,056
                                                        ----------
          Total ....................................    $1,950,000
                                                        ==========
</TABLE>

ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS

     Under  Section  145  of the Delaware General Corporation Law, a corporation
may  indemnify  its  directors,  officers,  employees  and agents and its former
directors,   officers,  employees  and  agents  and  those  who  serve,  at  the
corporation's  request,  in  such  capacities  with  another enterprise, against
expenses   (including   attorneys'  fees),  as  well  as  judgments,  fines  and
settlements  in  nonderivative  lawsuits,  actually  and  reasonably incurred in
connection  with  the defense of any action, suit or proceeding in which they or
any  of  them  were  or are made parties or are threatened to be made parties by
reason  of their serving or having served in such capacity. The Delaware General
Corporation  Law  provides,  however,  that  such person must have acted in good
faith  and  in a manner such person reasonably believed to be in (or not opposed
to)  the  best  interests  of  the  corporation  and,  in the case of a criminal
action,  such  person  must  have  had no reasonable cause to believe his or her
conduct  was  unlawful.  In  addition, the Delaware General Corporation Law does
not  permit  indemnification  in  an  action  or  suit by or in the right of the
corporation,  where  such  person  has  been adjudged liable to the corporation,
unless,  and only to the extent that, a court determines that such person fairly
and  reasonably  is  entitled  to  indemnity for costs the court deems proper in
light  of  liability adjudication. Indemnity is mandatory to the extent a claim,
issue or matter has been successfully defended.

     The  Registrant's  certificate  of  incorporation  contains provisions that
provide  that  no  director  of  the  Registrant  shall  be liable for breach of
fiduciary  duty  as a director, except for (1) any breach of the directors' duty
of  loyalty  to the Registrant or its stockholders; (2) acts or omissions not in
good  faith  or  which  involve intentional misconduct or a knowing violation of
the  law;  (3)  liability  under Section 174 of the Delaware General Corporation
Law;  or  (4)  any  transaction  from  which  the  director  derived an improper
personal   benefit.   The   indemnification   provided  under  the  Registrant's
certificate  of  incorporation includes the right to be paid expenses in advance
of  any  proceeding  for  which  indemnification  may  be had, provided that the
director  or  officer  undertakes  to repay such amount if it is determined that
the director or officer is not entitled to indemnification.

ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES

     Since  the  Registrant's formation on March 3, 1998, it has issued and sold
the securities described below in the following unregistered transactions:

                                      II-1
<PAGE>

       (1) On  March  4,  1998, in connection with its formation, the Registrant
           issued  1,606,682  shares  of its common stock in exchange for all of
           the  outstanding common stock of SAVVIS Communications Corporation, a
           Missouri  corporation  ("SCC"), in connection with the reorganization
           of  SCC  and  SAVVIS  Communications  Enterprises, L.L.C., a Missouri
           limited  liability company (the "LLC"). These issuances were effected
           in  reliance  on the exemptions from registration provided by Section
           4(2) of the Securities Act.


       (2) Between  March  and  July  1998, in a series of related transactions,
           the  Registrant  sold  to  First  Union  Capital  Partners, Inc., BCI
           Growth  IV, L.P. and R-H Capital Partners, L.P. a total of 18,226,228
           shares  of  its  Series C Redeemable Preferred Stock for $18,226,228;
           to  J.P.  Morgan  Investment  Corporation  and Sixty Wall Street SBIC
           Fund,  L.P.  a  total  of 8,000,000 shares of its Series C Redeemable
           Preferred  Stock  for  $8,000,000;  and to the holders of convertible
           promissory  notes  of  SCC and the LLC a total of 3,773,772 shares of
           its  Series  C  Redeemable  Preferred  Stock  in exchange for all the
           outstanding  notes. The Registrant issued to these investors warrants
           to  purchase  up to a total of 10,334,327 shares of its common stock,
           at  an exercise price of $.01 per share. These sales were effected in
           reliance  on  the  exemptions  from  registration provided by Section
           4(2) of the Securities Act.

       (3) On  March 4, 1998, the Registrant issued 502,410 shares of its Series
           A  Convertible Preferred Stock in exchange for all of the outstanding
           shares  of  SCC's  Series A Convertible Preferred Stock. In addition,
           the  Registrant  issued  warrants  to purchase up to 15,000 shares of
           its  Series  A  Convertible  Preferred  Stock at an exercise price of
           $10.64  per  share  in  exchange  for  warrants  to purchase an equal
           amount  of  shares of SCC's Series A Convertible Preferred Stock, and
           warrants  to  purchase up to 349,228 shares of its common stock at an
           exercise  price  of  $4.13  per  share  in  exchange  for warrants to
           purchase  an  equal  amount  of  shares  of SCC's common stock. These
           issuances   were   effected   in   reliance  on  the  exemption  from
           registration provided by Section 4(2) of the Securities Act.

       (4) On  March  4,  1998,  the  Registrant  issued 5,649,241 shares of its
           Series  B Convertible Preferred Stock in exchange for an equal amount
           of  Class  B  shares  of  the  LLC.  These issuances were effected in
           reliance  on the exemption from registration provided by Section 4(2)
           of the Securities Act.

       (5) On  March 4, 1998, the Registrant issued 728,575 shares of its common
           stock  in  exchange  for the outstanding securities of Interconnected
           Associates,  Inc.  These  issuances weres effected in reliance on the
           exemption   from   registration  provided  by  Section  4(2)  of  the
           Securities Act.

       (6) Between  May  1998  and  March 1999, the Registrant issued options to
           purchase  a  total of 1,560,968 shares of its common stock to a total
           of  177  employees, at exercise prices ranging from $.30 to $1.10 per
           share.  These  options were granted under the Registrant's 1998 Stock
           Option  Plan.  These  issuances  were  effected  in  reliance  on the
           exemption  from  registration  provided by Rule 701 promulgated under
           Section 3(b) of the Securities Act.

       (7) Between  July  and September 1999,  the Registrant granted options to
           purchase  3,674,000  shares  of  the Registrant's common stock to 121
           employees  of  Bridge  Information  Systems,  Inc.  ("Bridge")  at an
           exercise   price  of  $.50  per  share.  In  that  same  period,  the
           Registrant  granted options to purchase up to 2,389,840 shares of its
           common  stock to 92 of its employees at an exercise price of $.50 per
           share.   All   of   these   options  were  granted  pursuant  to  the
           Registrant's  1999  Stock  Option  Plan.  In  October  the Registrant
           granted  its  employees  the  right  to  convert  options to purchase
           236,882  shares  of  common  stock of Bridge into options to purchase
           236,882 shares of common stock of the Registrant at


                                      II-2
<PAGE>

          an  exercise price of $.50 per share. These issuances were effected in
          reliance  on  the  exemption  from  registration  provided by Rule 701
          promulgated under Section 3(b) of the Securities Act.


       (8) During  1998  and 1999, Registrant issued 92,565 shares of its common
           stock  pursuant to the exercise of stock options by its employees for
           an   aggregate  purchase  price  of  $36,100.  These  issuances  were
           effected  in  reliance on the exemption from registration provided by
           Rule 701 promulgated under Section 3(b) of the Securities Act.

          Each  of the foregoing transactions was effected without the use of an
          underwriter.


ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES


<TABLE>
<CAPTION>
    NUMBER       EXHIBIT DESCRIPTION
- --------------   -----------------------------------------------------------------------------------------------
<S>              <C>
 1.1*            Form of Underwriting Agreement
 3.1**           Amended and Restated Certificate of Incorporation of the Registrant
 3.2**           Amended and Restated Bylaws of the Registrant
 4.1*            Form of Common Stock Certificate
 5.1*            Opinion of Hogan & Hartson L.L.P. as to the validity of the shares being offered
 10.1**          1999 Stock Option Plan
 10.2**          Form of Incentive Stock Option Agreement under the 1999 Stock Option Plan
 10.3**          Form of Incentive Stock Option Agreement under the 1999 Stock Option Plan
 10.4**          Form of Non-Qualified Stock Option Agreement under the 1999 Stock Option Plan
 10.5**          Amended and Restated Agreement and Plan of Merger, dated February 19, 1999, among the
                 Registrant, SAVVIS Acquisition Corp. and Bridge Information Systems, Inc.
 10.6**          Employment Agreement, dated December 4, 1998, between the Registrant and Clyde A.
                 Heintzelman
 10.7**          Letter Agreement, dated November 12, 1999, between the Registrant and Clyde A.
                 Heintzelman
 10.8**          Letter Agreement, dated June 14, 1999, between the Registrant and David J. Frear
 10.9**          Letter Agreement, dated September 30, 1999, between the Registrant and James D. Mori
 10.10**         Form of Master Establishment and Transition Agreement between the Registrant and Bridge
                 Information Systems, Inc., including as Exhibit B a Form of Administrative Services Agreement,
                 as Exhibit E a Form of Local Contract of Assignment and Assumption, as Exhibit F a Form of
                 Local Asset Transfer Agreement, as Exhibit H a Form of Equipment Colocation Permit, as
                 Exhibit I a Form of Promissory Note, and as Exhibit J a Form of Call Asset Transfer Agreement.
 10.11 +**       Form of Network Services Agreement between SAVVIS Communications Corporation and
                 Bridge Information Systems, Inc.
 10.12 +**       Form of Technical Services Agreement between SAVVIS Communications Corporation and
                 Bridge Information Systems, Inc.
 10.13           Managed Network Agreement, dated January 31, 1995, between Sprint Communications
                 Company L.P. and Bridge Data Company.
</TABLE>


                                      II-3
<PAGE>



<TABLE>
<CAPTION>
    NUMBER      EXHIBIT DESCRIPTION
- -------------   -----------------------------------------------------------------------------------------
<S>             <C>
  10.14         Amendment One to the Managed Network Agreement, dated August 23, 1995, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.15         Amendment Two to the Managed Network Agreement, dated August 16, 1995, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.16 +       Amendment Three to the Managed Network Agreement, dated March 1, 1996, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.17 +       Amendment Four to the Managed Network Agreement, dated July 29, 1996, between Sprint
                Communications Company L.P. and Bridge Data Company.
  10.18 +       Amendment Five to the Managed Network Agreement, dated December 5, 1996, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.19 +       Amendment Six to the Managed Network Agreement, dated May 23, 1997 between Sprint
                Communications Company L.P. and Bridge Data Company.
  10.20 +       Amendment Seven to the Managed Network Agreement, dated August 28, 1998 between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.21 +       Service Agreement, dated August 15, 1996, between the Registrant and IXC Carrier, Inc.
  10.22 +       Amendment No. 1 to the Service Agreement, dated October 22, 1996, between the Registrant and IXC
                Carrier, Inc.
  10.23 +       Master Internet Services Agreement, effective June 4, 1999, between the Registrant and
                UUNET Technologies, Inc., an MCI WorldCom Company
  10.24 +       internetMCI Dedicated Access Agreement, dated April 16, 1998, between the Registrant and
                networkMCI, Inc.
  11.1*         Statement regarding computation of net income per share
  16.1**        Letter Re Change in Certifying Accountant
  21.1**        Subsidiaries of the Registrant
  23.1**        Consent of Deloitte & Touche LLP
  23.2**        Consent of Ernst & Young LLP
  23.3*         Consent of Hogan & Hartson L.L.P. (included in Exhibit 5.1)
  24.1**        Power of attorney (included in the signature page to this registration statement)
  27.1**        Financial Data Schedule
</TABLE>


- ------------------
 * To be filed by amendment.

** Previously filed.

 + Confidential Treatment requested as to certain portions of these Exhibits.

ITEM 17. UNDERTAKINGS

     The   undersigned   registrant   hereby   undertakes   to  provide  to  the
underwriters   at   the   closing   specified  in  the  Underwriting  Agreement,
certificates  in  such  denominations  and  registered  in  such names as may be
required by the underwriters to permit prompt delivery to each purchaser.

                                      II-4
<PAGE>

     Insofar  as  indemnification  for  liabilities arising under the Securities
Act  may  be  permitted  to  directors,  officers and controlling persons of the
registrant  pursuant  to  the foregoing provisions, or otherwise, the registrant
has  been  advised that in the opinion of the Securities and Exchange Commission
such  indemnification  is  against  public policy as expressed in the Securities
Act  and  is,  therefore,  unenforceable. If a claim for indemnification against
such  liabilities (other than the payment by the registrant of expenses incurred
or  paid  by  a director, officer or controlling person of the registrant in the
successful  defense  of  any  action,  suit  or  proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered,  the  registrant  will,  unless  in  the  opinion of its counsel the
matter  has  been  settled  by  controlling  precedent,  submit  to  a  court of
appropriate  jurisdiction  the  question  whether  such indemnification by it is
against  public  policy  as expressed in the Securities Act and will be governed
by the final adjudication of such issue.

     The undersigned registrant hereby undertakes that:

     (1) For  purposes  of  determining  any liability under the Securities Act,
the  information  omitted  from  the  form  of  prospectus filed as part of this
registration  statement  in  reliance  upon Rule 430A and contained in a form of
prospectus  filed  by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under  the  Securities  Act  shall  be  deemed  to  be part of this registration
statement as of the time it was declared effective.

     (2) For  the purpose of determining any liability under the Securities Act,
each  post-effective  amendment  that  contains  a  form  of prospectus shall be
deemed  to  be  a  new registration statement relating to the securities offered
therein,  and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.


                                      II-5
<PAGE>

                                  SIGNATURES

     Pursuant  to the requirements of the Securities Act of 1933, the registrant
has  duly  caused  this  Amendment  No.  4  to this Registration Statement to be
signed  on its behalf by the undersigned, thereunto duly authorized, in the City
of St. Louis, State of Missouri, on January 6, 2000.


                                    SAVVIS COMMUNICATIONS CORPORATION





                                    By: /s/ Robert McCormick
                                       ------------------------------------
                                       Robert McCormick
                                       President and Chief Executive Officer and
                                       Chairman of the Board



     Pursuant  to the requirements of the Securities Act of 1933, this Amendment
No. 4   to this registration statement has been signed by the following persons,
in the capacities indicated below, on the dates indicated.

                                      II-6
<PAGE>



<TABLE>
<CAPTION>
          SIGNATURE                            TITLE                        DATE
- -----------------------------   ----------------------------------   ------------------
<S>                             <C>                                  <C>
      /s/ ROBERT MCCORMICK      President and Chief Executive        January 6, 2000
- ---------------------------     Officer and Chairman of the Board
          Robert McCormick      (principal executive officer)


               *                Executive Vice President, Chief      January 6, 2000
- ---------------------------      Financial Officer and Director
        David J. Frear

                                (principal financial officer and
                                principal accounting officer)
               *                Director                             January 6, 2000
- ---------------------------
      Clyde A. Heintzelman

               *                Director                             January 6, 2000
- ---------------------------
         Thomas McInerney

               *                Director                             January 6, 2000
- ---------------------------
         Patrick Welsh

               *                Director                             January 6, 2000
- ---------------------------
         Thomas M. Wendel

</TABLE>



*By: /s/ Robert McCormick
     -----------------------
     Robert McCormick
     Attorney-in-Fact
     and Agent

                                      II-7
<PAGE>

                                 EXHIBIT INDEX





<TABLE>
<CAPTION>

    NUMBER       EXHIBIT DESCRIPTION
- --------------   -----------------------------------------------------------------------------------------------
<S>              <C>


 1.1*            Form of Underwriting Agreement
 3.1**           Amended and Restated Certificate of Incorporation of the Registrant
 3.2**           Amended and Restated Bylaws of the Registrant
 4.1*            Form of Common Stock Certificate
 5.1*            Opinion of Hogan & Hartson L.L.P. as to the validity of the shares being offered
 10.1**          1999 Stock Option Plan
 10.2**          Form of Incentive Stock Option Agreement under the 1999 Stock Option Plan
 10.3**          Form of Incentive Stock Option Agreement under the 1999 Stock Option Plan
 10.4**          Form of Non-Qualified Stock Option Agreement under the 1999 Stock Option Plan
 10.5**          Amended and Restated Agreement and Plan of Merger, dated February 19, 1999, among the
                 Registrant, SAVVIS Acquisition Corp. and Bridge Information Systems, Inc.
 10.6**          Employment Agreement, dated December 4, 1998, between the Registrant and Clyde A.
                 Heintzelman
 10.7**          Letter Agreement, dated November 12, 1999, between the Registrant and Clyde A.
                 Heintzelman
 10.8**          Letter Agreement, dated June 14, 1999, between the Registrant and David J. Frear
 10.9**          Letter Agreement, dated September 30, 1999, between the Registrant and James D. Mori
 10.10**         Form of Master Establishment and Transition Agreement between the Registrant and Bridge
                 Information Systems, Inc., including as Exhibit B a Form of Administrative Services Agreement,
                 as Exhibit E a Form of Local Contract of Assignment and Assumption, as Exhibit F a Form of
                 Local Asset Transfer Agreement, as Exhibit H a Form of Equipment Colocation Permit, as
                 Exhibit I a Form of Promissory Note, and as Exhibit J a Form of Call Asset Transfer Agreement.
 10.11 +**       Form of Network Services Agreement between SAVVIS Communications Corporation and
                 Bridge Information Systems, Inc.
 10.12 +**       Form of Technical Services Agreement between SAVVIS Communications Corporation and
                 Bridge Information Systems, Inc.
 10.13           Managed Network Agreement, dated January 31, 1995, between Sprint Communications
                 Company L.P. and Bridge Data Company.


</TABLE>


<PAGE>



<TABLE>
<CAPTION>
    NUMBER      EXHIBIT DESCRIPTION
- -------------   -----------------------------------------------------------------------------------------
<S>             <C>
  10.14         Amendment One to the Managed Network Agreement, dated August 23, 1995, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.15         Amendment Two to the Managed Network Agreement, dated August 16, 1995, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.16 +       Amendment Three to the Managed Network Agreement, dated March 1, 1996, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.17 +       Amendment Four to the Managed Network Agreement, dated July 29, 1996, between Sprint
                Communications Company L.P. and Bridge Data Company.
  10.18 +       Amendment Five to the Managed Network Agreement, dated December 5, 1996, between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.19 +       Amendment Six to the Managed Network Agreement, dated May 23, 1997 between Sprint
                Communications Company L.P. and Bridge Data Company.
  10.20 +       Amendment Seven to the Managed Network Agreement, dated August 28, 1998 between
                Sprint Communications Company L.P. and Bridge Data Company.
  10.21 +       Service Agreement, dated August 15, 1996, between the Registrant and IXC Carrier, Inc.
  10.22 +       Amendment No. 1 to the Service Agreement, dated October 22, 1996, between the Registrant and IXC
                Carrier, Inc.
  10.23 +       Master Internet Services Agreement, effective June 4, 1999, between the Registrant and
                UUNET Technologies, Inc., an MCI WorldCom Company
  10.24 +       internetMCI Dedicated Access Agreement, dated April 16, 1998, between the Registrant and
                networkMCI, Inc.
  11.1*         Statement regarding computation of net income per share
  16.1**        Letter Re Change in Certifying Accountant
  21.1**        Subsidiaries of the Registrant
  23.1**        Consent of Deloitte & Touche LLP
  23.2**        Consent of Ernst & Young LLP
  23.3*         Consent of Hogan & Hartson L.L.P. (included in Exhibit 5.1)
  24.1**        Power of attorney (included in the signature page to this registration statement)
  27.1**        Financial Data Schedule
</TABLE>


- ------------------
 * To be filed by amendment.

** Previously filed.

 + Confidential Treatment requested as to certain portions of these Exhibits.




                                                                   EXHIBIT 10.13



                            MANAGED NETWORK AGREEMENT

         This Managed Network  Agreement is effective as of the last date signed
below- by and between Sprint Communications  Company L.P., with offices at 13221
Woodland Park Road,  Herndon,  Virginia  22071,  and Bridge Data  Company,  with
offices at 717 Office Parkway, St. Louis, Missouri 63141.

         WHEREAS, Sprint wishes to provide Managed Network products and services
and related  support to Bridge,  and Bridge wishes to purchase such products and
services from Sprint; and

         WHEREAS,  the  parties  have  agreed to enter  into a  Managed  Network
Agreement  by and  between  them  dated as of the last date  signed  below  (the
"Agreement").

         NOW,  THEREFORE,  in consideration of the mutual promises and covenants
contained herein and of other good and valuable  consideration,  the receipt and
sufficiency of which is hereby acknowledged, the parties agree as follows:

1.       Scope.

         Bridge agrees to order,  and Sprint  hereby  agrees to provide  certain
Products and Services at Installation  Sites to be designated by Bridge.  Sprint
shall   install,   manage  and  maintain  the  Products  and  Services  at  each
Installation Site in accordance with the terms of this Agreement,  including the
Performance  Specifications.  The scope of work to be  performed by Sprint under
this Agreement shall be as set forth in Attachment A. Subject to Section 9 below
(Minimum  Commitment),  the fact that a Product or Service is  described  herein
does not obligate  Bridge to purchase  such Product or Service from Sprint under
this Agreement.

2.       Contract Documents and Definitions.

         (a) The Agreement  shall consist of this Managed  Network  Agreement by
and between  Bridge and Sprint,  including  all  attachments  referenced  in and
appended to this  Agreement  and made a part hereof  (the  "Attachments").  This
Agreement shall be interpreted  wherever  possible to avoid conflict between the
Sections  hereof and the  Attachments,  provided  that if such a conflict  shall
arise, the Sections of this Agreement shall control. The Attachments are:

                  Attachment A        Scope of Work
                  Attachment B        Rates and Charges
                  Attachment C        Site Preparation Requirements
                  Attachment D        Installation, Management and Maintenance
                                      Services
                  Attachment E        Performance Specifications

Bridge/Sprint Confidential               -1-                    January 30, 1995
<PAGE>

         (b) Whenever used in this Agreement, the words and phrases listed below
shall have the meanings  given below,  and all defined  terms shall  include the
plural as well as the singular.  Unless  otherwise  stated,  the words "herein,"
"hereunder"  and other similar words refer to this  Agreement as a whole and not
to any  particular  Section  or  other  subdivision.  The  words  "include"  and
"including" shall not be construed as terms of limitation.

         "Affiliate" of a party means the party,  any entity that is directly or
indirectly  controlling,  controlled by or under common  control with the party,
and the directors,  officers employees and agents of all of them, when acting in
their corporate capacity.

         "Bridge"  means  Bridge  Data  Company  and  those  of  its  Affiliates
purchasing Products and Services from Sprint hereunder.

         "Chronic Service Interruption" means an "Interruption" as defined below
which occurs three (3) or more times,  each incident lasting thirty (30) or more
minutes within three (3) consecutive calendar weeks.

         "Confidential   Information"  means  all  information   concerning  the
business of Bridge, Sprint or any third party doing business with either of them
that may be  obtained  from any  source by  Sprint by virtue of its  performance
under  this  Agreement  or by Bridge by  virtue of its use of the  Products  and
Services.  Such information  shall also include the terms of this Agreement (and
negotiations  and  proposals  from  one  party  to the  other  related  directly
thereto),  network  designs  and  design  recommendations,  tools and  programs,
pricing, methods, processes,  financial data, software,  research,  development,
strategic plans or related information.  All such information disclosed prior to
the  execution  of  this  Agreement   shall  also  be  considered   Confidential
Information for purposes of this Agreement. The network design and configuration
of the  Products  and  Services  purchased  hereunder,  shall be  deemed  Bridge
Confidential   Information,   and  shall  not  be  deemed  Sprint   Confidential
Information. Confidential Information shall not include information that: (a) is
already  rightfully  known by the receiving person at the time it is obtained by
such person, free from any obligation to keep such information confidential; (b)
is or becomes  publicly  known through no wrongful act of the receiving  person;
(c) is  rightfully  received by the  receiving  person from third party  without
restriction and without breach of this Agreement.

         "Equipment"  means all items of equipment leased or purchased by Bridge
from  Sprint and used to enable  Bridge to utilize  the  Products  and  Services
provided hereunder.

         "Installation Site" means any location for which Bridge orders Products
or Services.  The Installation  Sites may be changed by Bridge from time to time
on reasonable notice pursuant to Section 7. If Bridge changes the location of an

Bridge/Sprint Confidential               -2-                    January 30, 1995

<PAGE>

Installation  Site  prior to the  actual  installation,  Bridge  will not  incur
additional charges if notice of the change is received by Sprint within ten (10)
days of the date of the order.

         "Interruption"  means  an  event  resulting  from  the  failure  of the
Products and Services which prevents  utilization of a  Sprint-provided  circuit
line,  trunk or service.  Scheduled  maintenance  downtime is not  considered an
Interruption  as long as Sprint  provides  sufficient  notice.  An  Interruption
begins when Sprint is notified or becomes aware of the failure,  whichever first
occurs.  An  Interruption  continues  until the  Products  and/or  Services  are
repaired or restored.

         "Products and Services" means the equipment,  facilities,  programming,
software  and related  services  provided by Sprint to Bridge  hereunder,  which
collectively constitute a fully managed network of Working Systems. The Products
and  Services  include  Sprint  Frame Relay  Service but do not include  special
access  lines that may be used by Bridge in  connection  with the  Products  and
Services.

         "Performance   Specifications"   means  the   standards   contained  in
Attachment  E hereto  which  may be  modified  by the  mutual  agreement  of the
parties.

         "Sprint"  means  Sprint  Communications  Company  L.P. and those of its
Affiliates providing Products and Services to Bridge hereunder.

         "Working  System"  means  a  Bridge  Installation  Site  at  which  the
installation  of the Products and Services has been accepted by Bridge  pursuant
to Section 10.

3.       Term and Extensions.

         (a) The  initial  term of this  Agreement  shall  be three  (3)  years,
commencing on the last date shown on the signature page  (Effective  Date),  and
shall continue in full force and effect unless terminated in accordance with its
provisions.

         (b) Bridge  shall  have the right to extend the term of this  Agreement
for up to two (2)  successive  one (1) year  periods.  Bridge must  exercise its
renewal right by providing  Sprint thirty (30) days' advance  written  notice of
Bridge's intent to extend.

4.       Termination by Bridge.

         Bridge shall have the right to terminate this Agreement:

         (a) with no  liability  to  Sprint  other  than for  charges  (less any
applicable credits) for Product and Services provided prior to such termination,
if:

Bridge/Sprint Confidential               -3-                    January 30, 1995

<PAGE>

                  (i) Bridge provides ten (10) days written notice of its intent
to terminate in the event the  performance  of the managed  network  falls below
that  specified  and  calculated in accordance  with  Attachment E  "Performance
Specifications"  and  Sprint is unable to cure such  failure  within  sixty (60)
days;

                  (ii)  Bridge  provides  ten (10)  days  written  notice of its
intent to  terminate  in the event  Sprint  fails to perform  or comply  with or
violates any material warranty, term, condition or obligation of this Agreement,
or any material  representation,  warranty,  certification  or statement made by
Sprint in this Agreement shall prove to have been incorrect or misleading in any
material respect when made;

                  (iii) Bridge  replaces  the  Products  and  Services  provided
hereunder  with  other  Sprint   services,   provided  that  Bridge  takes  such
replacement   services  under  agreements  that  provide  for  term  and  volume
commitments equivalent to those provided hereunder; or

                  (iv)  Bridge  provides  ten (10)  days  written  notice of its
intent to terminate  in the event  Sprint  becomes the subject of a voluntary or
involuntary  bankruptcy,  insolvency,  reorganization or liquidation proceeding;
makes an  assignment  for the  benefit  of  creditors;  admits  in  writing  its
inability to pay debts when due, or fails within ten (10) days after  receipt of
written notice to remedy any breach of this Agreement.

                  (v) During month twelve (12) of the contract,  Bridge provides
sixty (60) days written notice of its intent to terminate because of a change in
Bridge ownership  control.  The phrase "Bridge ownership control" shall mean (i)
any merger or consolidation of Bridge Information  Systems,  Inc. with any other
person or entity, (ii) any sale, lease, exchange,  mortgage, pledge, transfer or
other  disposition,  in one (1) or a series of  transactions,  of fifty  percent
(50%) or more of Bridge Information Systems, Inc.'s assets (measured by the fair
market value of all the assets of Bridge  Information  Systems,  Inc.), or (iii)
any  acquisition of fifty percent (50%) or more of the combined  voting power of
Bridge Information Systems,  Inc.'s common stock by any person or entity. In the
event Bridge  exercises this option,  Sprint will continue to provide service in
accordance  with the terms,  conditions  and rates  herein for a period of up to
three (3) months  after the  effective  date of  termination.  If  Products  and
Services have not  completely  transitioned  from Sprint after three (3) months,
Sprint will provide  Products and  Services at Sprint's  then current  tariff or
list rates.  Sprint will cooperate  with Bridge or its successor  until services
are completely migrated to another carrier.

         (b) with  liability to Sprint for Products and Services  provided prior
to such termination,  plus an amount equal to fifty percent (50%) of the monthly
price for the Products and Services  terminated for the unexpired portion of the
term of this

Bridge/Sprint Confidential               -4-                    January 30, 1995

<PAGE>

Agreement.  Bridge must provide  Sprint  thirty (30) days written  notice of its
intent to terminate.

5.       Partial Termination.

         (a)  Independent of Bridge's other rights to terminate this  Agreement,
Bridge may

                  (i)  terminate  any  or  all  Products  and  Services  at  any
Installation  Site at which there is a Chronic  Service  Interruption  affecting
Products and Services that collectively account for twenty-five (25%) or more of
Bridge's total payments for all Products and Services at such Installation Site;

                  (ii) terminate at all Installation  Sites any specific Product
or Service subject to a Chronic Service  Interruption if such Product or Service
accounts for  twenty-five  percent (25%) or more of Bridge's  total payments for
all Products and Services;

                  (iii)  terminate  any  Product or Service  when  permitted  by
Section 18(c) or 21(b).

         (b) The Minimum  Commitment shall be reduced to reflect the termination
of any Products or Services under this Section.

6.       Termination by Sprint.

         Sprint shall have the right to terminate this Agreement if:

         (a) Bridge  fails to pay any invoice  that is not the subject of a bona
fide dispute  within thirty (30) days of the date such payment is due and Sprint
provides Bridge with written notice thereof, provided that Bridge shall have ten
(10) days from the time it receives notice from Sprint of nonpayment to cure any
such default;

         (b)  Bridge  fails to  perform  or comply  with or  violates  any other
material covenant,  condition or obligation under this Agreement or any material
representation of Bridge shall prove to have been incorrect or misleading in any
material respect when made; or

         (c)  Bridge   becomes  the  subject  of  a  voluntary  or   involuntary
bankruptcy,  insolvency,  reorganization  or  liquidation  proceeding;  makes an
assignment for the benefit of creditors;  admits in writing its inability to pay
debts when due, or fails within ten (10) days after receipt of written notice to
remedy any breach of this Agreement.

Bridge/Sprint Confidential               -5-                    January 30, 1995

<PAGE>

7.       Rates and Charges.

         For the term of this  Agreement,  Sprint shall charge  Bridge the rates
and charges for the Products and Services set forth in Attachment B. The move or
relocation of an Installation  Site shall be treated as a new  installation  for
all purposes under Attachment B. Any additional charges shall be mutually agreed
upon by the parties.

8.       Invoices.

         (a) Products and Services shall be billed monthly in advance, beginning
when the Products and  Services to which the charges  apply have been  installed
and have been accepted by Bridge pursuant to Section 10. All items on an invoice
not the  subject  of a bona  fide  dispute  shall be  payable  by Bridge in U.S.
currency  within  thirty (30) days from the date of receipt of the invoice.  All
amounts not in dispute are  subject to  interest  charges of 1 3/4 percent  that
will accrue daily on all amounts not paid within thirty (30) days of the date of
receipt of the invoice.

         (b)  Bridge  shall pay  sales,  use,  federal  excise,  utility,  gross
receipt, state and local surcharges, and similar taxes lawfully levied by a duly
constituted  taxing authority against or upon the Products and Services.  In the
alternative,  Bridge shall provide Sprint with a certificate evidencing Bridge's
exemption  from  payment  of or  liability  for such  taxes.  All  other  taxes,
including  any  ad  valorem,  income,  franchise,   privilege,  value  added  or
occupational taxes of Sprint's shall be paid by Sprint.

         (c) Bona fide  disputes  concerning  invoices  shall be referred to the
parties' respective  Contract Managers for resolution.  If they cannot resolve a
dispute within a reasonable  time, the matter shall be escalated to the parties'
representatives  for  resolution.  Any amount to which  Bridge is  entitled as a
result of the resolution of a billing dispute shall be credited promptly.

         (d) In the event that  Customer is seriously  delinquent  in payment of
non-disputed  charges,  then  Sprint  reserves  the right to  require a security
deposit from Bridge prior to continuing  the  provision of existing  services or
allowing the provisioning of additional services.

9.       Minimum Commitment.

         Bridge  agrees to install a minimum of two hundred  (200)  Installation
Sites  in  the  first  year  of  the  Agreement  term,  and  an  additional  280
Installation Sites in the second year of the Agreement term. Thereafter,  Bridge
agrees to maintain a minimum of 480 Installation  Sites for the remainder of the
term of the  Agreement.  This  minimum  commitment  shall  consist  of a 60 site
minimum  for  each  pair of  routers  Sprint  installs  in a  distribution  site
location.

Bridge/Sprint Confidential               -6-                    January 30, 1995

<PAGE>

         If Bridge is not meeting the minimum number of Installation Sites per a
particular  distribution  area, Bridge shall realign the remaining  distribution
area  Installation  sites to another  distribution  area.  After month 24 of the
contract,  if the total  number of  Installation  Sites falls below 480,  Bridge
shall not be eligible to receive the discounted  pricing set forth in Attachment
B of this Agreement.

10.      Acceptance.

         (a) Upon the  installation of Products and Services at any Installation
Site,  Sprint shall conduct  appropriate  tests to establish that it performs in
accordance  with mutually  agreed upon  Acceptance  Criteria and shall  promptly
inform  Bridge of such test results.  If test results show that Products  and/or
Services are performing in accordance with the Performance Specification, Bridge
shall accept the Product or Service at an  Installation  Site within  twenty-one
(21) days of receipt of Sprint's test results.  If Bridge does not notify Sprint
of its acceptance within that period,  the Product or Service shall be deemed to
be accepted by Bridge on the last day of that period.  Sprint may invoice Bridge
for such Product or Service  effective the day after its  acceptance  under this
Subsection.

         (b) If  Sprint's  tests  establish  that a newly  installed  Product or
Service does not perform in accordance  with the mutually agreed upon Acceptance
Criteria,  or Bridge reports to Sprint within the acceptance period specified in
Subsection (a) that it does not perform in accordance  with the mutually  agreed
upon Acceptance  Criteria,  Sprint shall  immediately and diligently  exert best
efforts  to bring it into  compliance.  Sprint  shall not bill  Bridge  for such
Product or Service until its acceptance by Bridge.

         (c)  Upon  repair  or  restoration  of  Products  and  Service  at  any
Installation  Site, Sprint shall conduct  appropriate tests to establish that it
performs in accordance with mutually  agreed upon Acceptance  Criteria and shall
promptly inform Bridge of such test results.

11.      Network Optimization.

         (a)  Sprint  shall  assist  Bridge in  optimizing  the  efficiency  and
cost-effectiveness  of  the  Products  and  Services  in  general  and  at  each
Installment Site. Sprint shall, at a cost to be mutually  negotiated,  implement
upgrades  to  maximize  the  efficiency  of the  Products  and  Services at such
Installation Sites. In the event an upgrade is required to enable Sprint to meet
its  Performance  Specifications,  this  upgrade  shall  be  implemented  at  no
additional cost to Bridge.

         (b) In  cooperation  with  Bridge,  Sprint  shall review the design and
configuration of the Products and Services whenever Bridge's traffic  materially
changes  (e.g.,  upon the  acquisition,  divestiture  or  cessation  of business
operations)  or new or  different  products  or  services  become  Products  and
Services hereunder.  In any event, such reviews will be conducted at least every
ninety  (90) days if so

Bridge/Sprint Confidential               -7-                    January 30, 1995

<PAGE>

requested by Bridge.  Sprint shall  provide  written  recommendations  to Bridge
based upon such reviews.

12.      Equipment Lease/Purchase.

         Bridge  may lease or  purchase  from  Sprint or from one or more  other
vendors the  equipment  necessary  to enable  Bridge to utilize the Products and
Services  provided  hereunder,  provided that Bridge must purchase or lease from
Sprint the  equipment  required  for the minimum  number of sites  specified  in
Section 9. If Bridge  chooses to lease or purchase such  equipment  from Sprint,
the parties shall execute a separate agreement for that purpose.

13.      Maintenance Support.

         Sprint shall provide  maintenance  service at each Installation Site in
accordance with the terms of Attachment D commencing upon Bridge's acceptance of
the Products and Services at such  Installation  Site and  continuing  until the
earlier of (a) the termination of all Products and Services at such Installation
Site or (b) the termination or expiration of this Agreement.

14.      Access Management.

         (a) Sprint shall order and manage on Bridge's  behalf  access  services
for use in  connection  with the Products  and  Services.  Sprint shall  utilize
Teleport Communications Group ("TCG") for access services where available. Rates
shall be Sprint Tariff 8 less fifteen  percent  (15%),  with Access Channel Fees
("ACF") and Central Office Connection ("COC") charges waived. Sprint will review
access rates annually.  Sprint will only pass through to Bridge any decreases in
Tariff 8 rates,  but shall not pass through any  increases.  For rates that have
decreased, Sprint will reprice at the then current Tariff 8 rates less 15%. Once
the SIA Local Access Services  contract is signed,  Bridge may take advantage of
the SIA  pricing if TCG  provides  the  access.  However,  Bridge may use access
pricing  from only one  contract,  i.e.,  either this  contract or the SIA Local
Access Services contract. If SIA access pricing is selected,  non-SIA sites will
be  charged at  current  Sprint  Tariff 8 rates and ACF and COC shall be waived.
(Bridge  shall  also have the option of  choosing  Sprint's  Coordinated  Vendor
Billed  Access  ("SCVBA")  service at the price  specified in  Attachment  B. If
Bridge selects this option,  Sprint act's as Bridge's  agent to order,  test and
install access services, but the access provider bills Bridge directly.)

         (b) Bridge shall supply  Sprint with letters of agency to permit Sprint
to act on Bridge's behalf for purposes of ordering and managing access services.
The access  provider  will invoice  Sprint,  and Sprint will invoice  Bridge for
access services.

Bridge/Sprint Confidential               -8-                    January 30, 1995

<PAGE>

         (c) Sprint shall use due care to (i) monitor, direct and supervise such
access  provider's  performance  (including  conducting fault  isolation);  (ii)
enforce any warranties and other  assurances of performance  obtained from it by
Sprint  pursuant to tariff or otherwise;  or (iii) report promptly to Bridge any
actual or threatened failure of performance by such access provider that does or
could  reasonably  be  expected  to affect  adversely  in any  material  respect
Sprint's  ability to provide  any  Product  or  Service in  conformity  with the
requirements of this Agreement.

15.      Rights and Obligations of Bridge.

         (a) Contract Manager.  Bridge shall assign a representative to serve as
Sprint's  point-of-contact for all matters concerning its performance under this
Agreement.

         (b) Site  Preparation.  Bridge shall,  at its own expense,  provide all
necessary  preparations of each  Installation Site in accordance with Attachment
C, including inside wiring, demarc extension and rack mount accessories.  Bridge
shall  ensure  that  Bridge-provided  equipment  is on  site  by  the  scheduled
installation  date.  If Sprint is required to  reschedule  the  installation  of
Bridge-provided   equipment   because  it  is  not  on  site  by  the  scheduled
installation date, Bridge shall pay Sprint to redispatch installation personnel.

         (c)      Proper Use of Equipment.

                  (i)  Bridge  shall  use any  equipment  provided  by Sprint in
connection with the Products and Services in accordance with its  documentation,
which documentation shall be provided by Sprint at no additional charge.  Unless
otherwise  provided herein,  Bridge shall surrender the equipment to Sprint upon
the termination of this Agreement.

                  (ii) Bridge  shall be liable for damages to the  Products  and
Services  caused by the  negligence  or willful  acts or  omissions  of Bridge's
officers,  employees,  agents  or  contractors;  for the loss  through  theft or
vandalism  of the  Products  and  Services at the  Installation  Sites;  and for
damages to Products and Services  caused by the use of equipment or supplies not
provided hereunder or otherwise authorized by Sprint.

                  (iii) Bridge shall neither permit nor assist others to use the
Products  and  Services  for any  purposes  other  than that for which  they are
intended;  fail to maintain a suitable  environment  as specified  Sprint in the
applicable  schedule;  or alter,  tamper with, adjust or repair the Products and
Services. Any such alteration,  tampering,  adjustment or repair by Bridge shall
relieve  Sprint  from any  liability  or  obligation  hereunder  (including  any
warranty  or  indemnity  obligation)  relating  to  the  affected  Products  and
Services,  and Bridge shall be liable to Sprint for any documented  direct costs
incurred by Sprint as a result of such actions.

Bridge/Sprint Confidential               -9-                    January 30, 1995

<PAGE>

         (d) Abuse or  Fraudulent  Use of Products  and  Services.  Bridge shall
neither permit nor assist others to abuse or  fraudulently  use the Products and
Services, including

                  (i)  obtaining  or   attempting  to  obtain   service  by  any
fraudulent means or device to avoid payment;

                  (ii)  accessing,  altering or destroying  any  information  of
another Sprint customer by any fraudulent  means or device,  or attempting to do
so; or

                  (iii) using the Products and Services so as to interfere  with
the use of the Sprint network by other Sprint  customers or authorized  users in
violation of the law or in support of any unlawful act.

16.      Rights and Obligations of Sprint.

         (a) Program Manager.  Sprint shall assign a representative  to serve as
Bridge's  point-of-contact for all matters concerning its performance under this
Agreement.

         (b)  Provision  of the  Products and  Services.  Sprint shall  install,
operate,  maintain and manage the Products and Services at the Installation Site
designated by Bridge in accordance with the Performance Specifications and other
terms of this  Agreement.  Sprint  shall  install  the cable that  connects  the
Products and Services to Bridge servers at such Installation  Sites to achieve a
Working System.  Bridge may at any time add, delete,  relocate or, with Sprint's
consent,  modify any  Product or  Service.  The  installation  interval  for any
addition or relocation shall be determined by agreement of the parties.

         (c)      Access and Security.

                  Sprint  personnel shall have such access to Bridge's  premises
as is  reasonably  necessary to provide the Products and Services in  accordance
with this  Agreement,  provided that Sprint  personnel shall comply at all times
with  Bridge's  reasonable  security  requirements.  Bridge shall have the right
immediately  to terminate the right of access of any Sprint  personnel to any or
all Installation  Sites should Bridge determine in its sole discretion that such
termination  is in  Bridge's  best  interest,  provided  that  Bridge  shall not
exercise this right on grounds  unrelated to job performance or in a manner that
obliges  Sprint  to  commit  any  unlawful  act.  Unless  Sprint  knew or should
reasonably have known that particular  Sprint  personnel would be barred from an
Installation Site, the time allowed for any installation,  repair,  maintenance,
or similar  action that such personnel were to perform shall be extended for the
period reasonably  required by Sprint to deploy substitute  personnel,  provided
that Sprint  shall use its best efforts to deploy such  substitute  personnel as
quickly as possible. For purposes of this Subsection, any subcontractor or other
agent of Sprint shall be treated as Sprint personnel.

Bridge/Sprint Confidential               -10-                   January 30, 1995

<PAGE>

         (d)      Insurance.

                  (i) At all times  during  the term of this  Agreement,  Sprint
shall maintain for itself, its officers,  employees, agents, and representatives
the  following:  (i) all insurance  coverage  required by federal and state law,
including workers' compensation insurance;  (ii) comprehensive general liability
insurance  with a combined  limit of not less than  $5,000,000  of coverage  for
bodily injury and property  damage under a standard or excess  policy,  together
with  additional  insurance  required to cover  claims,  losses and  liabilities
hereunder;  (iii) a fidelity  bond covering  Sprint,  its officers and employees
with a limit of not less than $5,000,000, underwritten by an insurer licensed to
do business in the state of Missouri; and (iv) automobile liability insurance in
the amount of not less than  $1,000,000.  Sprint's general  liability  insurance
shall include  coverage for claims  brought  against  Sprint as a result of work
performed  by its  subcontractors.  The policy  limits set forth in this Section
shall in no way be construed as a limitation on Sprint's liability hereunder.

                  (ii) Sprint shall  furnish to Bridge,  upon  written  request,
certificates of insurance or other appropriate documentation (including evidence
of renewal  of  insurance)  evidencing  the  general  liability  and  automobile
liability  insurance coverage  referenced above,  naming Bridge as an additional
insured.  Such  certificates  or other  documentation  shall include a provision
whereby  fifteen  (15) days' prior  written  notice  shall be provided to Bridge
prior to coverage  cancellation or other material alteration by either Sprint or
the applicable  insurer.  Such  cancellation  or material  alteration  shall not
relieve Sprint of its continuing  obligation to maintain  insurance  coverage in
accordance with this Subsection.

                  (iii)  In  lieu  of all or  part  of  the  insurance  coverage
specified  in  Subsection  (i),  Sprint  may  self-insure  with  respect  to any
insurance coverage, except where expressly prohibited by law.

         (e)      Representations and Warranties.

                  (i) Sprint  hereby  warrants  that the Products and  Services,
with the  exception  of the ISC  Cards,  will  operate  in  accordance  with the
Performance  Specifications  upon the date  installed and throughout the term of
this Agreement.  Sprint assumes no responsibility for the performance of the ISC
Cards because Bridge is contracting directly with ISC for special development of
the Cards.  Sprint  acknowledges  that, in the event of the  Interruption of any
Product or Service,  Bridge may suffer damages the amount of which cannot easily
be determined.

                           (A) In the event that Sprint does not provide overall
network  availability  as defined in  Attachment  E, Sprint shall grant Bridge a
credit (the "Credit  Allowance")  for the sites that cause  Sprint's  failure to
meet the overall network availability.

Bridge/Sprint Confidential               -11-                   January 30, 1995

<PAGE>

A separate  availability  calculation  will be derived  for those sites that are
contributory to Sprint's  failure to meet its network  availability  commitment.
Credits will be applied to those sites in accordance with the following table:

         For Site Types A, B1, B2, C1, C2, if the service availability is:

             Greater than
             or equal to            and less than             the credit is
               99.95%                  --                          0%
               99.85%                  99.95%                      1%
               99.75%                  99.85%                      2%
               99.65%                  99.75%                      3%
               99.55%                  99.65%                      4%
               99.45%                  99.55%                      5%
               99.35%                  99.45%                      6%
               99.25%                  99.35%                      7%
               99.15%                  99.25%                      8%
               99.05%                  99.15%                      9%
               98.95%                  99.05%                     10%

         For Site Types D, E1, E2, if the service availability is:

             Greater than
             or equal to            and less than             the credit is
               99.91%                  --                          0%
               99.81%                  99.91%                      1%
               99.71%                  99.81%                      2%
               99.61%                  99.71%                      3%
               99.51%                  99.61%                      4%
               99.41%                  99.51%                      5%
               99.31%                  99.41%                      6%
               99.21%                  99.31%                      7%
               99.11%                  99.21%                      8%
               99.01%                  99.11%                      9%
               98.91%                  99.01%                     10%

No credit shall exceed 10% for any site.

                            (B) For any  Interruption  that the parties agree is
likely to last  beyond  ten (10) days,  Bridge  shall have the right in its sole
discretion to subscribe to an alternative Sprint service to replace the affected
Product or Service for the period of time that the  Products  and  Services  are
interrupted.  If Sprint cannot provide a suitable  alternative  service over its
own facilities,  Sprint shall obtain from other vendors or carriers the services
or  facilities  necessary  to provide  substitute  service to Bridge.  If Bridge
elects to obtain these alternative services through Sprint, Bridge shall pay the
lesser of the rates and  charges  for the  affected  Product  or  Service or the
charges incurred for the alternative  service (including usage charges, if any).
Sprint shall not charge Bridge to connect, commence or terminate any alternative
service obtained under this Subsection.

Bridge/Sprint Confidential               -12-                   January 30, 1995

<PAGE>

                            (C) Sprint shall not be liable for Credit Allowances
for an  Interruption  in  connection  with a Product or Service for which Bridge
obtains  alternative  service  under  Subsection  (B) after it begins using such
alternative service.


                  (ii) Sprint  hereby  represents  and  warrants  that the terms
hereof do not conflict in any respect  whatsoever with any Sprint tariff on file
with the Federal Communications  Commission or other regulatory body. If, during
the  term of this  Agreement,  Sprint  shall  file a  contract  specific  tariff
governing the Products and Services or any portion  thereof,  such tariff filing
shall be consistent in all respects with the terms of this Agreement, and Sprint
shall give Bridge ten (10) days'  advance  notice of making such a tariff filing
and of filing any subsequent modifications thereto.

                  (iii)  THE  FOREGOING  WARRANTIES  ARE IN  LIEU  OF ALL  OTHER
WARRANTIES,   EXPRESS  OR  IMPLIED,   INCLUDING   THE  IMPLIED   WARRANTIES   OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

17.      Limitations on Liability.

         (a) Each party's liability to the other during the service term for all
injuries  other than those listed in  Subsection  (c) below shall not exceed one
hundred thousand dollars ($100,000).

         (b)  Neither   party  shall  be  liable  to  the  other  for  indirect,
incidental,  consequential,  exemplary,  reliance or special damages,  including
damages for lost profits,  regardless of the form of action whether in contract,
indemnity, warranty, strict liability, or tort, including negligence of any kind
with regard to the Products and Services or other conduct under this Agreement.

         (c)  Nothing  contained  in this  Section  shall limit  either  party's
liability to the other for (i) willful or intentional misconduct; or (ii) injury
or death,  or damage to  tangible  real or  tangible  personal  property  or the
environment,  when proximately caused by Sprint's or Bridge's negligence or that
of their  respective  agents,  subcontractors  or employees.  Nor shall anything
contained in this Section limit Sprint's intellectual  property  indemnification
obligations under Section 21.

18.      Equipment and Software Not Provided by Sprint.

         (a) Sprint shall not be responsible for the installation,  operation or
maintenance  of equipment or software not  provided  under this  Agreement;  nor
shall Sprint be responsible for the  transmission or reception of information by
equipment  or software  not  provided  hereunder.  In the event that Bridge uses
equipment or software not provided  hereunder in a manner that impairs  Bridge's
use of the Products and  Services,  Bridge shall not be excused from payment for
such use.

Bridge/Sprint Confidential               -13-                   January 30, 1995

<PAGE>

Upon notice  from Sprint that  equipment  or software  not  provided  under this
Agreement  is  causing  or is likely to cause  hazard,  interference  or service
obstruction,  Bridge shall eliminate the likelihood of such hazard, interference
or service obstruction.

         (b)  Notwithstanding  the  foregoing,  Sprint  shall,  at no additional
charge,  provide all  interface  specifications  for the  Products  and Services
reasonably  requested by Bridge.  Sprint shall,  upon the receipt of appropriate
specifications from Bridge, inform Bridge of the compatibility with the Products
and  Services  of any  equipment  or  software  that  Bridge  proposes to use in
connection  therewith;  the  effects,  if any, of the use of such  equipment  or
software  on the  quality,  operating  characteristics,  and  efficiency  of the
Products and  Services;  and the effects if any, of the Products and Services on
the operating characteristics and efficiency of any such equipment or software.

         (c) If any material  modification or reprovisioning of Sprint's network
(including  any  modification  of the  software  for which a license is provided
hereunder)  undertaken other than at Bridge's request (i) adversely  affects any
of the Products and Services,  (ii) causes Bridge to incur significant costs for
any Products and Services (a write-down of equipment or equipment-related assets
being a cost for purposes of this  Subsection),  (iii) prevents proper operation
of any Bridge equipment, or (iv) prevents any Products and Services from meeting
any  Performance  Specification,  Bridge shall have the right to  terminate  any
adversely  affected  Products and  Services  pursuant to Section 5. Sprint shall
provide   advance   notification   to  Bridge  of  any  such   modification   or
reprovisioning.

19.      Proprietary Rights; License.

         (a) Sprint hereby grants to Bridge a non-exclusive and non-transferable
license to use all  programming  and  software  necessary  for Bridge to use the
Products and  Services.  Such license is granted for the term of this  Agreement
and for the sole purpose of enabling Bridge to use the Products and Services.

         (b) All title and  property  rights  (including  intellectual  property
rights) to Products and Services (including associated programming and software)
are and shall  remain with Sprint.  Bridge  shall not attempt to examine,  copy,
alter,  "reverse  engineer,"  tamper with or otherwise  misuse such Products and
Services,  programming  and software.  Bridge accepts title to the Equipment and
risk of loss of Equipment FOB destination.

20.      Confidentiality.

         (a)  During  the term of this  Agreement  and for a period  of five (5)
years  from the date of its  expiration  or  termination  or the  expiration  or
termination of all extensions  thereto,  each party agrees to maintain in strict
confidence  all  Confidential  Information.  Neither party shall,  without prior
written consent,

Bridge/Sprint Confidential               -14-                   January 30, 1995

<PAGE>

use the other party's  Confidential  Information  for any purpose other than for
the performance of its duties and obligations  under this Agreement.  Each party
shall use, and cause all authorized recipients of the other party's Confidential
Information  to use,  the same  degree  of care to  protect  the  other  party's
Confidential Information as it uses to protect its own.

         (b)  Notwithstanding  Subsection  (a),  either  party may  disclose the
Confidential Information of other party to: (i) its employees and the employees,
directors  and  officers  of its  affiliates  as  necessary  to  implement  this
Agreement;  (ii)  employees,  agents or  representatives  of the other party; or
(iii) other  persons  (including  counsel,  consultants,  lessors or managers of
facilities  or  equipment  used  by  such  party)  in  need  of  access  to such
information for purposes specifically related to either party's responsibilities
under this Agreement,  provided that any disclosure of Confidential  Information
under  clause  (iii) shall be made only upon the prior  written  approval of the
other party and subject to  appropriate  assurances  that the  recipient of such
information shall hold it in strict confidence.

         (c)  Upon  the  request  of the  party  having  proprietary  rights  to
Confidential  Information,  the party in  possession of such  information  shall
promptly return it (including any copies, extracts and summaries thereof) to the
requesting  party,  or, with the other party's written  consent,  shall promptly
destroy it and provide the other party with written certification of same.

         (d) Either party may request in writing that the other party waive all,
or any portion, of the requesting party's responsibilities relative to the other
party's  Confidential  Information.  Such  waiver  request  shall  identify  the
affected information and the nature of the proposed waiver. The recipient of the
request shall respond within a reasonable  time, and if, in its sole discretion,
it determines to grant the requested  waiver,  it will do so in writing over the
signature of an employee authorized to grant such request.

         (e)   Bridge   and   Sprint   acknowledge   that  any   disclosure   or
misappropriation  of  Confidential  Information  in violation of this  Agreement
could cause irreparable harm, the amount of which may be extremely  difficult to
determine,  thus potentially making any remedy at law or in damages  inadequate.
Each party, therefore, agrees that the other party shall have the right to apply
to any court of competent  jurisdiction  for an order  restraining any breach or
threatened  breach of this Section and for any other  appropriate  relief.  This
right shall be in addition to any other remedy available in law or equity.

         (f) A party requested or ordered by a court order or other governmental
authority of competent  jurisdiction to disclose  another  party's  Confidential
Information  shall notify the other party in advance of any such disclosure and,
absent the other  party's  consent to such  disclosure,  use its best efforts to
resist and to assist  the other  party in  resisting  such  disclosure.  A party
providing  another

Bridge/Sprint Confidential               -15-                   January 30, 1995

<PAGE>

party's  Confidential  Information  to a court or other  governmental  authority
shall use its best efforts to obtain a protective order or comparable  assurance
that the Confidential Information so provided will be held in confidence and not
further disclosed to any other person, absent the owner's prior consent.

21.      Indemnification.

         (a) Sprint shall defend,  settle,  or otherwise manage its own cost and
expense any claim or action against  Bridge or any of its  directors,  officers,
employees  or  permissible  assigns  for actual or alleged  infringement  of any
patent, copyright,  trademark, trade secret, or similar proprietary right to the
extent that such claim or action  arises from  Bridge's  use of the Products and
Services.  Bridge shall notify  Sprint  promptly in writing of any such claim or
suit and shall  cooperate  with Sprint in a  reasonable  way to  facilitate  the
settlement  or defense  thereof.  Sprint  further  agrees to indemnify  and hold
Bridge  harmless  from and against  and all  liabilities  and  damages  (whether
incurred as the result of a judicial decree or a settlement),  and the costs and
expenses  associated  with any claim or action  of the type  identified  in this
Subsection.

         (b) If, as a consequence  of a claim or action of the kind described in
Subsection  (a),  Sprint's or Bridge's  use of any Product or Service or related
documentation is enjoined,  Sprint shall, at its own option and expense, either:
(i)  procure  for Bridge the right to  continue  using the  affected  Product or
Service or  documentation;  (ii) modify such Product or Service or documentation
so that it is  non-infringing  (provided that such  modification does not affect
the  intended  use of the Product or Service or  documentation  as  contemplated
hereunder);  or (iii) upon written notice to Bridge, substitute for such Product
or  Service  or   documentation   a   comparable,   non-infringing   service  or
documentation.  If Sprint  cannot do (i)-(iii)  above,  Bridge may terminate any
affected  Product or Service  pursuant to Section 5, and Sprint  shall refund to
Bridge any prepaid charges therefor.

         (c) Sprint and Bridge  will be  indemnified  and saved  harmless by the
other  from and  against  all loss,  liability,  damage and  expense,  including
reasonable counsel fees, caused by:

                  (i)  Claims  for  libel,  slander,   invasion  of  privacy  or
infringement of copyright,  and invasion and/or alteration of private records or
data  arising  from any  information,  data,  or messages  transmitted  over the
network by Bridge; and

                  (ii) Claims for  infringement  of patents arising from the use
of equipment  and  software,  apparatus  and systems not  provided  hereunder in
connection with Products and Services.

Bridge/Sprint Confidential               -16-                   January 30, 1995

<PAGE>

22.      Assignment.

         Neither  party may assign this  Agreement or any rights or  obligations
hereunder, without the prior written consent of the other party, which the other
party  may  grant  or  withhold  in its  sole  discretion.  Notwithstanding  the
foregoing,  either  party may assign this  Agreement or any or all of its rights
and obligations hereunder,  to its parent, any of its affiliates or subsidiaries
upon notice to, but without the consent of, the other party.  No  assignment  of
this Agreement  shall relieve either party of any  obligations  thereunder.  Any
attempted assignment in violation of this Section shall be void.

23.      Force Majeure.

         (a) In no event  shall  either  party be  liable  to the  other for any
failure to perform  hereunder that is due to war, riots,  embargoes,  strikes or
other  concerted  acts of workers  (whether  Sprint's or  others'),  casualties,
accidents or other causes beyond the control of the party  claiming  excuse.  No
failure to perform  shall be excused under this  Subsection  unless such failure
and the  consequences  thereof  are beyond the  control and without the fault or
negligence of the party claiming excuse.  Each party shall, with the cooperation
of the other,  use  reasonable  efforts to mitigate the extent of any failure to
perform and the adverse consequences thereof.

         (b) If Sprint  cannot  promptly  provide a  suitable  temporary  Sprint
alternative  to a Product or Service  subject to an  Interruption  in connection
with the existence of a force majeure  condition,  Bridge may, at its option and
at its own cost, contract with one or more third parties for any or all affected
Products and Services for the shortest  commercially  available period likely to
cover the  reasonably  expected  duration of the  Interruption,  and may suspend
Sprint's  provision of such Products and Services for such period.  Sprint shall
not charge Bridge for any Products and Services thus suspended during the period
of  suspension.  Sprint shall resume  provision  of the  suspended  Products and
Services upon the later of the  termination  or  expiration of Bridge's  legally
binding commitments under contracts with third parties for alternative  services
or the cessation or remedy of the force majeure condition.

         (c) In the event that a force majeure condition shall continue for more
than sixty (60) days,  Bridge may cancel the affected Products and Services with
no further  liability to Sprint other than for Products and Services received by
it prior to the occurrence of the force majeure condition.

24.      Modifications.

         No  modification,  amendment,  or supplement to the Agreement or any of
its  provisions  shall be binding  upon the  parties  unless made in writing and
signed by an authorized  representative  of the party  against whom  enforcement
thereof is  sought.  A failure  or delay of either  party to enforce  any of the
provisions of this

Bridge/Sprint Confidential               -17-                   January 30, 1995

<PAGE>

Agreement,  to exercise  within the time specified (if any) any option  provided
herein,  or to require  performance  of any provision  hereof shall in no way be
construed to be a waiver of such option or provision.

25.      Notices.

         All notices or other  communications  required or permitted to be given
or delivered  under this Agreement shall be in writing and shall be sufficiently

given if delivered,  in the case of disputes  arising under this  Agreement,  by
registered  mail or overnight  express  mail service or, in all other cases,  by
first class mail as follows:

Notice to Sprint shall be to:    Sprint Communications Company
                                 13221 Woodland Park Road
                                 Herndon, Virginia  22170
                                 Attn:  Data Contracts Administration

Notice to Bridge shall be to:    Bridge Data Company
                                 717 Office Parkway
                                 St. Louis, MO  63141
                                 Attn:  Bernice Pennington

Either party may from time to time designate  another address or other addresses
by notice to the other  party in  compliance  with this  Section.  Any notice or
other communication shall be deemed to be given when received.

26.      Advertisement and Publicity.

         Neither  Sprint  nor  Bridge  shall  use the  name of the  other in any
publicity  release,  solicitation  or  promotional  material,  or  advertisement
without the prior written consent of the other. This prohibition includes use of
the other's name,  trademarks or logos or any other reference to the other party
directly or indirectly in any  advertising,  sales  presentation,  news release,
release to any professional or trade publication or for any other purpose.  Each
party may withhold consent under this Section in its sole discretion.

27.      Headings.

         The headings in this  Agreement are for purposes of reference  only and
shall not in any way limit or otherwise affect the meaning or  interpretation of
any of the terms hereof.

28.      Severability.

         If any provision of this Agreement is held to be invalid,  illegal,  or
unenforceable,  the unaffected  provisions of this Agreement shall be unimpaired
and remain in full force and effect.  Sprint and Bridge shall  negotiate in good
faith to

Bridge/Sprint Confidential               -18-                   January 30, 1995

<PAGE>

substitute  for such invalid,  illegal,  or  unenforceable  provision a mutually
acceptable provision consistent with the original intention of the parties.

29.      Governing Law.

         This Agreement shall be construed and enforced in accordance  with, and
validity and  performance  hereof shall be governed by, the laws of the State of
New York.

30.      Performance Pending Outcome of Disputes.

         (a) Pending the resolution of any dispute or controversy  arising under
this Agreement,  Sprint shall continue to perform its obligations  hereunder and
shall not discontinue,  disconnect, or in any other fashion cease to provide all
or any  substantial  portion  of the  Products  and  Services  to Bridge  unless
otherwise directed by Bridge.

         (b) This Section  shall not apply where (i) Bridge is in default  under
this Agreement or (ii) the dispute or  controversy  between  parties  relates to
harm to the  Sprint  network  allegedly  caused by Bridge  and  Bridge  does not
immediately  cease and desist  from the  activity  giving rise to the dispute or
controversy.

31.      Entirety of Agreement.

         This Agreement,  together with all Attachments,  constitutes the entire
Agreement and supersedes  all previous  agreements,  promises,  representations,
understandings,  and negotiations between the parties,  whether written or oral,
with respect to the subject matter hereof.

         IN WITNESS  WHEREOF,  the  parties  hereto,  each by a duly  authorized
officer,  have caused this  Agreement  to be executed as of the date first above
written.

SPRINT COMMUNICATIONS CO. L.P.            BRIDGE DATA COMPANY

                                          /s/ Charles A. Dill
- ----------------------------              --------------------------------
Signature                                 Signature




Bridge/Sprint Confidential               -19-                   January 30, 1995

<PAGE>



                                          Charles A. Dill
- ----------------------------              --------------------------------
Printed Name                              Printed Name


                                          President & CEO
- ----------------------------              --------------------------------
Title                                     Title


                                          1/31/95
- ----------------------------              --------------------------------
Date                                      Date







Bridge/Sprint Confidential               -20-                   January 30, 1995

<PAGE>


                                  ATTACHMENT C

                          SITE PREPARATION REQUIREMENTS

I        WELLFLEET AN ROUTER

         A.       PHYSICAL CHARACTERISTICS (TABLE TOP/RACK MOUNT)

<TABLE>
<CAPTION>
         Height                             Width                                 Depth
         ------                             -----                                 -----
<S>                                         <C>                                  <C>
         3.33 inches (8.45 cm)              17.5 inches (44.45 cm)               9.15 inches (23.24 cm)
</TABLE>

         B.       AIR PLENUM REQUIREMENTS

<TABLE>
<CAPTION>
         Access Feeder Note                 Required Air Plenum                  Suggested Air Plenum
         ------------------                 -------------------                  --------------------
<S>                                         <C>                                  <C>
         Right side                         2 inches (5.1 cm)                    3 inches (7.6 cm)
         Left side                          2 inches (5.1 cm)                    3 inches (7.6 cm)
         Rear side                          6 inches (15.3 cm)                   6 inches (15.3 cm)
</TABLE>

         C.       POWER REQUIREMENTS

<TABLE>
<CAPTION>
           Voltage              Current           Frequency          Watts Max         Connector            Protection
           -------              -------           ---------          ---------         ---------            ----------
<S>                             <C>                <C>                 <C>              <C>                 <C>
           100-240              1.0A @             47.63 Hz            97               Nema 5-15P          Fuse in power
           VAC                  110 VAC                                                 (USA)               Supply
                                                                                        Country
                                                                                        Specific
</TABLE>

         D.       ENVIRONMENTAL REQUIREMENTS

<TABLE>
<CAPTION>
         Altitude                   Operating Humidity                          Temperature
         --------                   ------------------                          -----------
<S>                                 <C>                                         <C>
         0-8,000 feet (0-2400m)     20%-80% non-condensing                      32 to 104 F
                                                                                (0-40 C) stable
</TABLE>

II.      TELEBIT NETBLAZER PN

         A.       PHYSICAL SIZE                           2.4"H x 8.5"L x 13"D
                                                          (6cm x 22 cm x 33 cm)

         B.       WEIGHT                                  4lbs. (2 kg)

         C.       POWER REQUIREMENTS                      100-250VAC,
                                                          (50/60 Hz)

         D.       POWER CONSUMPTION                       25 Watts


- --------------------------------------------------------------------------------
Bridge                                C-1                                1/30/95

<PAGE>

                                  ATTACHMENT D

                     DOMESTIC INSTALLATION, MAINTENANCE, AND
                               MANAGEMENT SERVICES

This document describes the installation,  maintenance,  and management services
provided by Sprint for Bridge's managed router network.

I.       INSTALLATION

Sprint  will  provide  installation  services  for all  routers,  Telebit  PN2DE
Netblazers,  and Telebit modems ordered from Sprint.  Sprint reserves the rights
to employ third party vendors for the actual on-site installation.  Installation
for fully managed routers consists of:

         1.       A physical or telephone  site survey may be required  prior to
                  installation.

         2.       Collection  of  necessary  configuration  information  using a
                  Sprint  provided  router   installation  form  (joint  process
                  between  Sprint and the customer).  Configuration  information
                  must be  completed  prior to the install and each site must be
                  certified  by Bridge as ready for  installation.  Physical and
                  electrical   requirements   must  be  met  for  each  site  in
                  accordance  with standard  requirements  provided by Wellfleet
                  and Telebit.

         3.       Sprint will provide installation services for the Bridge owned
                  Codex 3520 DSUs.  Bridge will be responsible for de-installing
                  these DSUs and shipping them to Bridge where a V.35 cable will
                  be  installed.  Bridge will then send the DSU and cable to the
                  Sprint Repair Depots (RDs).  Bridge agrees to have one month's
                  supply   (approximately   80)  DSUs  in  the  RDs  during  the
                  implementation period.

II.      MAINTENANCE PLANS

         A. WELLFLEET ROUTERS

         Maintenance  Plans for  Wellfleet  routers  include  both  software and
         hardware   maintenance.   The  main   differentiating   factor  between
         maintenance  plans is the level of on-site  hardware  maintenance.  The
         following list indicates the key differences in the various maintenance
         options. A detailed description of each option follows.


- --------------------------------------------------------------------------------
Bridge                                D-1                                1/30/95

<PAGE>

         Support Program:                        8 X 5 next business day on-site
                                                 remedial services

         Extended Plus Support Program:          24 X 7 with four hour response,
                                                 same day on-site remedial
                                                 services

         Both of the router maintenance plans provide the following services:

                  1)       Software Subscription Service:

                  The  customer   automatically   receives  new  major  software
                  releases, documentation updates and maintenance bulletins.

                  2)       24 X 7 Hot Line Support:

                  Sprint's  Internet  Network Service Center (INSC) is manned 24
                  hours per day,  365 days per year.  Round the clock  telephone
                  support during network outages is provided.  Sprint's INSC has
                  access to  Wellfleet's  24 X 7  emergency  hotline  service as
                  needed.

                  3)       24 X 7 Dial-in Diagnostics:

                  A  Sprint   technician  from  the  INSC  will  dial  into  the
                  customer's  equipment to help  diagnose and correct  problems.
                  This is available 24 hours per day, 365 days per year.

                  4)       Help Desk and Configuration Support:

                  Sprint's Enterprise Internet  Engineering (EIE) group provides
                  configuration  management  services for fully managed routers.
                  Configuration  management  consultation  is  available  during
                  normal business hours.  The EIE has access to Wellfleet's help
                  desk as needed.

                  Services Specific to each support program are as follows:

                  5)       Support Program

                  Upon verification of a hardware related problem, Sprint's INSC
                  will  dispatch a certified  technician to the customer site by
                  the  end  of the  next  business  day  after  the  replacement
                  equipment is delivered to the customer  site.  The  technician
                  will  correct   hardware   malfunctions  by  replacing  faulty
                  components.  All parts and labor are provided at no



- --------------------------------------------------------------------------------
Bridge                                D-2                                1/30/95

<PAGE>

                  additional  charge  when  required  to correct  any  equipment
                  malfunction that is a result of normal use.

                  6)       Extended Plus Support Program:

                  24 X 7 with  four  hour  response  Same Day  On-site  Remedial
                  Hardware  Service:  Upon Sprint's  verification  of a hardware
                  related  problem,  Sprint's  INSC will  dispatch  a  certified
                  technician  to  the  distribution   site  the  same  day.  The
                  technician will diagnose and correct hardware malfunctions and
                  replace  faulty  components if necessary.  All parts and labor
                  are provided at no additional  charge when required to correct
                  any  equipment  malfunction  that is a result of  normal  use.
                  Available  24  hours a day,  7 days a week,  excluding  Sprint
                  defined  holidays.  Four hours  response is the  objective for
                  sites within 50 miles of a Sprint  designated  service  depot.
                  On-site  response time  objectives  begin when Sprint verifies
                  the existence of a hardware related problem.

         B.       TELEBIT NETBLAZERS AND MODEMS

         Next Day On-site  Remedial.  Upon  verification  of a hardware  related
         problems, Sprint's INSC will order the appropriate hardware and have it
         shipped to the Bridge site. A certified  technician  will be dispatched
         to the  customer  site by the end of the next  business  day  after the
         replacement equipment is delivered to the customer site. The technician
         will correct the hardware malfunction by replacing the faulty unit.

         C.       CODEX 3520 DSU

         Next Day On-site Remedial.  Sprint will maintain the Bridge owned Codex
         3520 DSUs. Upon  verification  of a DSU problem,  the INSC will order a
         DSU and  associated  V.35 cable  from  Sprint's  inventory  and have it
         shipped to the Bridge size.  By the end of the next  business day after
         the  replacement  equipment is delivered to the customer site, a Sprint
         technician  will correct the hardware  problem by replacing  the faulty
         unit.  Sprint will ship the faulty unit to the Bridge designated repair
         company.  Bridge  will be  responsible  for the costs  associated  with
         shipping  the faulty unit to the repair  company,  the repair,  and the
         shipment to Sprint's Regional Depot.

III.     NETWORK MANAGEMENT SERVICES

Sprint's  Network  Systems  Internet  Services  (NSIS)   organization   provides
customers with responsive,  integrated management of services for the detection,
reporting,



- --------------------------------------------------------------------------------
Bridge                                D-3                                1/30/95


<PAGE>

analysis, and correction of troubles. This group is accountable to customers for
the end-to-end  management of network  services.  The Internet  Network  Service
Center (INSC) is the group that actually monitors customer router networks.  The
Enterprise Internet Engineering (EIE) group is responsible for the configuration
and design of a customers  network.  Sprint will  provide  Customer  with router
network management  services  including Single Point of Contact,  Trouble Ticket
Handling,  Maintenance  Coordination,  24 X 7 Proactive  Network  Monitoring and
Fault Management,  Out of Band Dial-in Network Management Access,  Configuration
Management, and Router Network Engineering.

         A.       SINGLE POINT OF CONTACT:

         24 hours per day, 7 days per week, 365 days a year,  Sprint's  Internet
         Network  Service  Center (INSC)  provides a single point of contact for
         troubles  (Routers and  Transport)  associated  with the managed router
         service. Trouble reports are received from the customer's help desk via
         a domestic toll-free number.

         B.       TROUBLE TICKET HANDLING:

         A trouble  ticket  number will be provided  to the  customer  Help Desk
         reporting  trouble.  For each  trouble  report,  Sprint  will  maintain
         information about the trouble,  the steps taken to resolve the trouble,
         and  the   final   disposition   of  the   trouble   report.   Customer
         representatives  will  be  kept  apprised  of  the  status  of  service
         restoration  actions.  A  trouble  ticket  will not be closed by Sprint
         until Bridge is satisfied that the problem has been corrected.

         C.       MAINTENANCE COORDINATION:

         The services of any third party vendors required to service portions of
         the managed router service will be coordinated by Sprint. The INSC will
         dispatch vendor  technicians to perform  on-site router  maintenance as
         necessary.  Any higher-level assistance will also be coordinated by the
         INSC.

         D.       OUT-OF-BAND DIAL-IN NETWORK MANAGEMENT ACCESS:

         Bridge is  required  to  provide a  standard  business  line for remote
         out-of-band  dial-in to each customer site. V.32 compatible modems will
         be attached to the business  line and an auxiliary  port on the router.
         Sprint's  INSC will then be able to dial in to customer  routers.  If a
         problem  occurs where the INSC can no longer access the router  in-band
         from the network  management  system,  a technician will dial in to the
         affected router's modem port. The technician will then be able to check
         the router and its ports for trouble.



- --------------------------------------------------------------------------------
Bridge                                D-4                                1/30/95


<PAGE>

         E.       NETWORK MONITORING AND FAULT MANAGEMENT:

         Sprint's  INSC will provide  network  monitoring  and fault  management
         services 24 hours per day, 7 days per week, and 365 days per year. This
         includes the detection, isolation, diagnosis, and correction of network
         troubles. The INSC operates a Simple Network Management Protocol (SNMP)
         based  management  system which provides  real-time,  graphics-oriented
         network management of routers and associated communications links. This
         management  system will be used for initial  screening  of all customer
         trouble reports.  It is Sprint's objective to respond within 15 minutes
         of all detectable network events.

         F.       CONFIGURATION MANAGEMENT AND ROUTER NETWORK ENGINEERING:

         As part of the provisioning process, Sprint may conduct site surveys of
         user  locations  to  develop  data  required  for  circuits  and router
         installation.  Pre-coordination  with  customer  technical  staff  will
         ascertain  information needed to properly configure the routers such as
         routing protocols,  applications,  traffic,  connectivity requirements,
         and  interfaces  to be  supported.  Sprint will  develop and maintain a
         company wide router structure,  in terms of routing protocols,  routing
         parameters and Interconnection  schemes.  Configurations for individual
         routers will also be developed and maintained as part of the life cycle
         maintenance/administration process.

         Sprint's Network Management Services apply from Sprint's network out to
         the LAN port on the routers.

         G.       PERFORMANCE STATISTICS

         Sprint  will poll all  routers in the  network  and obtain  performance
         statistics and reports. These reports will be available to Bridge in an
         electronic form.  Sprint will monitor these statistics on a daily basis
         for trends and potential problems.


- --------------------------------------------------------------------------------
Bridge                                D-5                                1/30/95




                                                                   EXHIBIT 10.14



                                  AMENDMENT ONE
                                     TO THE
                            MANAGED NETWORK AGREEMENT
                                     BETWEEN
                       SPRINT COMMUNICATIONS COMPANY, L.P.
                                       AND
                               BRIDGE DATA COMPANY

The  Managed  Network  Agreement  ("Agreement")  between  Sprint  Communications
Company,  L.P.  ("Sprint")  and  Bridge  Data  Company  ("Customer"),  having an
effective date of March 1, 1995, is hereby amended as set forth below.

WHEREAS,  Sprint and Customer have previously  entered into an Agreement for the
provision of managed network services; and

WHEREAS, Customer wishes to procure managed network services internationally.

NOW THEREFORE, the parties mutually agree to the following:

1.       The following  Sections of the Agreement  shall not apply to any orders
         for Canadian services:

         Section 16(e)(i)
         Attachment  D -  Domestic  Installation,  Maintenance,  and  Management
         Services

2.       Attachment  B - Global  Pricing is hereby  revised to  incorporate  the
         enclosed Addendum for Canadian pricing.

3.       Attachment  E  -  Performance   Specifications  is  hereby  revised  to
         incorporate  the  enclosed  Addendum  for Global  Frame  Relay  Service
         performance objectives.

4.       All other terms and  conditions of the  Agreement  shall remain in full
         force and effect, except as expressly stated herein.

IN WITNESS WHEREOF,  the parties have executed this Amendment One as of the date
of the last signature below.

SPRINT COMMUNICATIONS CO., L.P.                BRIDGE DATA COMPANY

/s/ James Mori                                 /s/ Robert McCormick
- ---------------------------------              -------------------------------
Signature                                      Signature

Bridge/Sprint Confidential               -1-

<PAGE>

James Mori                                     Robert McCormick
- ---------------------------------              -------------------------------
Printed Name                                   Printed Name


Regional Director                              Senior Vice President
- ---------------------------------              -------------------------------
Title                                          Title


8/23/95                                        8/22/95
- ---------------------------------              -------------------------------
Date                                           Date




Bridge/Sprint Confidential               -2-



                                                                   EXHIBIT 10.15


                                  AMENDMENT TWO
                                     TO THE
                            MANAGED NETWORK AGREEMENT
                                     BETWEEN
                       SPRINT COMMUNICATIONS COMPANY, L.P.
                                       AND
                               BRIDGE DATA COMPANY

The  Managed  Network  Agreement  ("Agreement")  between  Sprint  Communications
Company,  L.P.  ("Sprint")  and  Bridge  Data  Company  ("Customer"),  having an
effective date of March 1, 1995, as amended,  is hereby  further  amended as set
forth below.

WHEREAS,  Sprint and Customer have previously  entered into an Agreement for the
provision of managed network services; and

WHEREAS,  Customer  wished  to  procure  additional  equipment  for use with the
managed network services.

NOW THEREFORE, the parties mutually agree to the following:

1.       Revise Attachment A Scope of Work as follows:

Site Types A, B1,  C1, D, and E will  utilize a Telebit 2 Port  Netblazer  LS in
place of the Netblazer PN.  Microcomm  modems at all customer sites are replaced
by Teleblazer Standalone Modems.

2. Revise  Attachment  B, Section I - Equipment - Purchase  Price to include the
following  items. The LS 2S/A Telebit 2 Port Netblazer LS is replacing the PN2DE
Telebit  Netblazer  Router  at Site  Types A, B1,  C1, D and E. The  AP-8810  SA
Teleblazer  Standalone Modem replaces the Microcomm Deskport 28.8ES modem at all
customer sites.

A.       Equipment Part of Domestic Design

Model             Description               Qty      List Price    Net Price
- -----             -----------               ---      ----------    ---------

LS 2S/A      Telebit 2 Port Netblazer LS    1        $1,259/ea     $1,070.15/ea
AP-8810 SA   Teleblazer Standalone Modem    1        $  349/ea     $  296.65/ea


Bridge/Sprint Confidential                 -1-

<PAGE>

B. Other Equipment

Model              Description          Qty      List Price        Net Price
- -----              -----------          ---      ----------        ---------

7220         V.35 DSU to Router Cable    1       $195.00/ea       $126.75/ea
SP1530       Adtran DSU (5)              1       $735.00/ea       $551.00/ea

2. Revise  Attachment B, Section I - Equipment - Purchase Price as follows:  The
list price for the PN2DE Telebit  Netblazer Router is hereby reduced from $2,299
each to  $1,849.00.  The net  price  is  therefore  reduced  from  $1,954.15  to
$1,571.65.

3. All other terms and  conditions of the  Agreement  shall remain in full force
and effect, except as expressly stated herein.

IN WITNESS WHEREOF,  the parties have executed this Amendment Two as of the date
of the last signature below.

SPRINT COMMUNICATIONS CO. L.P.            BRIDGE DATA COMPANY

/s/ James Mori                            /s/ Robert McCormick
- -----------------------------             ----------------------------
Signature                                 Signature


James Mori                                Robert McCormick
- -----------------------------             ----------------------------
Name                                      Name


Regional Director                         Senior VP
- -----------------------------             ----------------------------
Title                                     Title


8/16/95                                   8/11/95
- -----------------------------             ----------------------------
Date                                      Date







Bridge/Sprint Confidential               -2-



                                                                   EXHIBIT 10.16

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 THREE
                                     TO THE
                            MANAGED NETWORK AGREEMENT
                                     BETWEEN
                       SPRINT COMMUNICATIONS COMPANY, L.P.
                                       AND
                               BRIDGE DATA COMPANY

The  Managed  Network  Agreement  ("Agreement")  between  Sprint  Communications
Company, L.P. ("Sprint") and Bridge Data Company ("Bridge"), having an effective
date of March 1, 1995, as amended, is hereby further amended as set forth below.

WHEREAS,  Sprint and Bridge have  previously  entered into an Agreement  for the
provision of managed network services; and

WHEREAS, Sprint and Bridge desire to amend the Agreement.

NOW THEREFORE, the parties mutually agree to the following:

1.       Section 2. Contract  Documents and Definitions.  The following  changes
         are hereby made to the Attachments:

              Attachment  A  is  superseded  in  its  entirety  by  the  revised
              Attachment A (Scope of Work) which is hereby incorporated into the
              Agreement.

              Attachment  B  is  superseded  in  its  entirety  by  the  revised
              Attachment B (Rates and Charges) which is hereby incorporated into
              the Agreement.

              Attachment  E  is  superseded  in  its  entirety  by  the  revised
              Attachment  E   (Performance   Specifications)   which  is  hereby
              incorporated into the Agreement.

              Attachment   F   (Facilities   Services   Agreement)   is   hereby
              incorporated into the Agreement.

 2.      Section 3. Term and  Extensions.  Delete  Paragraph (a) in its entirety
         and replace with the following language:

         (a)      The initial term of this Agreement  shall commence on the last
                  date shown on the signature page (Effective  Date),  and shall
                  continue  in full force and effect  through  January  31, 1999
                  unless terminated in accordance with its provisions.

Bridge/Sprint Confidential               -1-                             1/26/96

<PAGE>

3.       Section 4. Termination by Bridge. Delete Paragraph (b) in its entirety
         and replace with the following language:

         (b)      with  liability  to  Sprint  for  the  Products  and  Services
                  provided  prior to such  termination,  plus an amount equal to
                  one  hundred  percent of the  difference  between  the Minimum
                  Commitment and the actual charges  invoiced for each remaining
                  contract year or any portion thereof.

4.       Section 9. Minimum Commitment.  Delete this Section in its entirety and
         replace with the following language:

                  BRIDGE  agrees  to  achieve  the  following   minimum   annual
                  commitments ("MAC") as follows:

                  For  Bridge's  domestic  and  international  frame  relay  and
                  managed   router   services,   the   following   MACs   apply.
                  Contributing  to this MAC are  recurring  charges for domestic
                  and international  access channels  (ports),  PVCs' IPVCs' and
                  access  line  charges  (including   recurring  Central  Office
                  Connection charges and Access  Coordination Fees), and monthly
                  equipment  maintenance  and  management  charges.  The  MAC is
                  calculated after the application of any discounts.

                  MAC for 1996:     $4,100,000
                  MAC for 1997:     $5,400,000
                  MAC for 1998:     $5,400,000

         For Bridge's  domestic and  international  SprintNet X.25 service,  the
         following MACs apply.  Contributing  to this MAC are recurring  charges
         for domestic and international dedicated access facilities ("DAFs").

                  MAC for 1996:     $1,550,000
                  MAC for 1997:     $2,160,000
                  MAC for 1998:     $2,160,000

         Sprint  commits  to having  Bridge's  X.25  Collections  Network  fully
         installed by June 1, 1996 under the following conditions:

                  a)    Sprint has received all orders by February 1, 1996; and

                  b)    Sprint's  failure to meet this  commitment is not due to
                        force  majeure  events as  specified  in  Section  23 or
                        Bridge's failure to perform its responsibilities.

Bridge/Sprint Confidential               -2-                             1/26/96

<PAGE>

         If Sprint's  failure to meet this commitment  causes Bridge not to meet
         its MAC for SprintNet X.25 service,  then Sprint shall reduce  Bridge's
         1996 MAC for SprintNet X.25 service by the amount  Sprint's  failure to
         meet the committed installation date causes Bridge not to meet the MAC.

         If Bridge fails to achieve the MAC in any of the above contract  years,
         the  amount  by which  Bridge  fails to meet the MAC (the  "shortfall")
         shall carry over to the following contract year, thereby increasing the
         following  year's  MAC by such  shortfall  amount.  If Bridge  fails to
         achieve  the MAC in 1998 (as it may be  adjusted),  then  Sprint  shall
         extend  the  Term of the  Agreement  until  total  invoiced  cumulative
         recurring charges, net of credits, exceeds $19,750,000.

5.       Section 22.  Assignment.  Revise this  paragraph  in its  entirety  and
         replace with the following language:

         Neither  party may assign this  Agreement or any rights or  obligations
         hereunder,  without the prior written consent of the other party, which
         the  other  party  may  grant  or  withhold  in  its  sole  discretion.
         Notwithstanding  the foregoing,  either party may assign this Agreement
         or any of all of its rights and obligations  hereunder,  to its parent,
         any of its affiliates or  subsidiaries  upon notice to, but without the
         consent of, the other party. Specifically,  Bridge shall have the right
         to assign  the X.25  SprintNet  Network in its  entirety  to any of its
         affiliates or subsidiaries upon notice to Sprint. No assignment of this
         Agreement shall relieve either party of any obligations thereunder. Any
         attempted assignment in violation of this Section shall be void.

6.       The following new Sections are hereby incorporated in the Agreement.

         A.       Section 32.  Exclusive Provider.

                  Bridge agrees that Sprint shall be its  exclusive  provider of
                  frame relay services during the Term of this Agreement as long
                  as Sprint complies with the terms of this Agreement.  As such,
                  Bridge shall award to Sprint one hundred percent (100%) of its
                  frame  relay  business.  In the event that  Bridge  acquires a
                  company  that has a term plan for the  Products  and  Services
                  with another  carrier,  this provision will only apply to such
                  acquired  company  after the  expiration  of any existing term
                  plan.

         B.       Section 33.  New Technology.

                  Sprint  understands that Bridge has a substantial  interest in
                  state of the art  technologies  that may offer  efficient  and
                  cost-

Bridge/Sprint Confidential                      -3-                      1/26/96

<PAGE>

                  effective    solutions    to    Bridge's    telecommunications
                  requirements.  Bridge may request  that  Sprint  provide a new
                  technology  to Bridge  that would serve as a  replacement  for
                  some of the Products and Services  being provided by Sprint to
                  Bridge under this Agreement ("Replacement Service"). If Sprint
                  is unable to provide such Replacement  Service under terms and
                  rates as favorable to Bridge as those offered through any bona
                  fide  written  offer  to  Bridge  from  a  comparable  service
                  provider, and such Replacement Service will materially improve
                  the  performance  and  efficiency  of Bridge's  network,  then
                  Sprint  agrees that it will  reduce  Bridge's  Minimum  Annual
                  Commitment  ("MAC")  under this  Agreement  to the extent that
                  substituting  a  Replacement  Service  for  the  Products  and
                  Services hereunder affects Bridge's ability to meet the MAC.

                  If Bridge or an affiliate of Bridge can provide a  Replacement
                  Service under terms and rates more  favorable  than  Sprint's,
                  then Sprint  reserves the option to provide the  transport and
                  equipment  purchases,  but  agrees  to  reduce  the MAC to the
                  extent that the decrease in management and maintenance  caused
                  Bridge not to achieve the MAC.

                  Sprint shall have the right to have an independent third party
                  auditor examine any bona fide offer from a comparable  service
                  provider  to  ensure  that  such  bona  fide  offer is in fact
                  consistent with the terms as described by Bridge.

7.       Implementation Schedule for Frame Relay service.

         Sprint hereby agrees to escalate the implementation schedule under this
         Agreement  from  forty-five  (45) sites per month to one hundred  (100)
         sites per month for six (6)  consecutive  months.  Bridge must  provide
         Sprint with the appropriate quantity of complete orders sixty (60) days
         in advance of installation,  and an  implementation  schedule to insure
         that one hundred (100) sites are ready for  installation in each of the
         six (6) months.

8.       Signing Credits.

         In consideration  for Bridge extending the Agreement for one additional
         year,  Sprint  agrees that Bridge will receive the below  credits to be
         paid as follows:

                  $50,000  per  month  will be issued  as a credit  against  the
                  invoices  for  July  through  December,  1996,  as long as the
                  monthly

Bridge/Sprint Confidential                  -4-                          1/26/96

<PAGE>

                  recurring  charges for all  services is $500,000  per month or
                  greater, net of all discounts.

                  $50,000  per  month  will be issued  as a credit  against  the
                  invoices for January  through  December,  1997, as long as the
                  monthly  recurring  charges for all  services is $600,000  per
                  month or greater, net of all discounts.

                  $50,000  per  month  will be issued  as a credit  against  the
                  invoices  for  January  and  February,  1998,  as  long as the
                  monthly  recurring  charges for all  services is $625,000  per
                  month or greater, net of all discounts.

         No  credits  shall be  applied  in any month in which  Bridge  does not
         achieve the level of recurring charges required to receive the credits,
         unless  the  failure  to  achieve  the level of  recurring  charges  is
         directly  attributable  to  Sprint's  failure  to  meet  the  committed
         implementation  schedule,  and Sprint's failure is not due to (i) force
         majeure  events as specified in Section 23 or (ii) Bridge's  failure to
         perform its responsibilities.

         If Bridge terminates this Agreement for any reason prior to January 31,
         1999,  Bridge shall reimburse  Sprint one hundred percent (100%) of the
         amount paid to Bridge through the effective date of termination.

         In no event will a credit  issued in any given month exceed the monthly
         billing for that month.

         Credits to be applied under this section shall not exceed $1,800,000.

9.       All other terms and  conditions of the  Agreement  shall remain in full
         force and effect, except as expressly stated herein.

IN WITNESS  WHEREOF,  the parties have executed this  Amendment  Three as of the
date of the last signature below.




Bridge/Sprint Confidential               -5-                             1/26/96

<PAGE>

SPRINT COMMUNICATIONS CO., L.P.                BRIDGE DATA COMPANY

/s/ Patti Manuel                               /s/ Tom Wendel
- -------------------------------------          ---------------------------------
Signature                                      Signature


Patti Manuel                                   Tom Wendel
- -------------------------------------          ---------------------------------
Printed Name                                   Printed Name


President, Business Sales & Marketing          COO & President
- -------------------------------------          ---------------------------------
Title                                          Title

3/1/96                                         2/22/96
- -------------------------------------          ---------------------------------
Date                                           Date






Bridge/Sprint Confidential               -5-                             1/26/96

<PAGE>

                                  ATTACHMENT E
                           PERFORMANCE SPECIFICATIONS

SECTION 1 - DOMESTIC FRAME RELAY SERVICE LEVEL AGREEMENTS
1.1      Network Availability:*
         Site Types A, B1, C1: 99.95%
         Availability  shall  be  measured  end  to  end.  Network  availability
         percentage is for sites located in the  continental  USA.  Availability
         figure assumes four hours  scheduled  maintenance  for each month.  For
         sites  with  next  day   remedial   hardware   maintenance,   the  site
         availability will be excluded form the network availability calculation
         for 24 hours.  If service  is  restored  in 24 hours,  the site will be
         considered to have met its performance  requirements for that period of
         time. Availability is calculated based on manufacturer's  statistics on
         Mean-Time-Between-Failure   ("MTBF").
         *Site  types are  defined in  Attachment  A,  Scope of Work
         Components Included:

         o All Sprint Frame Relay network components
         o DSU at Customer Site
         o Distribution Routers
         o Customers Site Routers
         o LEC
         o Dial Backup Modems

Components Excluded:

         o Scheduled maintenance downtime
         o Downtime due to any of the reasons stated in Section 23 Force Majeure
         o Downtime due to Customer inaccessibility
         o Network anomalies caused by Cascade outages or impaired performance

Calculation:

   Network    =    (24 Hours X Days in Month X # of Sites) - (Total Outage Time)
Availability       -------------------------------------------------------------
                               (24 Hours x Days in Month X # of Sites)

Total Outage Time  Measurement:  An outage condition exists when Customer is out
of service and unable to transmit  data.  Sprint will analyze the out of service
trouble rickets in the Sprint Trouble  Reporting System (TRS).  Outage time will
be measured  from the time the trouble  ticket was opened to the time service is
restored.



- --------------------------------------------------------------------------------
Bridge                                E-1                       January 26, 1996
Amendment 3


<PAGE>

All sites types A, B1, and C1 will be included in the number of sites. A minimum
of 100 sites are required for this calculation.

1.2      Delay                                            192ms round Trip Delay

         This  delay  assumes  the  following   configuration   and  application
characteristics:

         o        Originating Access Speed: 56 Kbps
         o        Terminating Access Speed: T-1
         o        Average Frame Size: 64 bytes
         o        CIR Level of PVCs: 0 Kbps
         o        Average Distance of PVCs 500 miles

         Components Included:
         o        All Sprint Frame Relay network components
         o        CSU/DSU (if Sprint provided)

         Components Excluded:
         o        Network  delay does not include  delay  induced by the router.
                  Any PING test  performed  by  Customer  must  subtract  router
                  delay.

         Calculation:

              Average            =          Total Network Delay for all PVCs
         Network Delay                      --------------------------------
                                                  Total Number of PVCs

         Network Delay will be measured  based on Customer  initiated PING test.
         The PING test will be done over  multiple  days (minimum of 30 days) to
         adequately determine a consistent performance level.

         Delay Administration Process:

         o        Sprint   Account   Manager   will  notify  the  SE,  NASM  (if
                  applicable),  SE Director,  NCC  Director,  NCC  Manager,  and
                  Product


- --------------------------------------------------------------------------------
Bridge                                E-2                       January 26, 1996
Amendment 3

<PAGE>

                  Marketing of  customers  who have signed an SLA. A short SMAIL
                  script  has been  developed  (Compose  FR.SLA)  to notify  the
                  appropriate groups.

         o        Customer notifies Sprint's Service  Management Center that the
                  average Network Delay  performance is  non-compliant  with the
                  Service Level Agreement. The SMC opens a trouble ticket.

         o        The NCC works the trouble  ticket to diagnose the problem.  If
                  they are  unable to  diagnose  or fix the  problem,  they will
                  notify the SE.

         o        Sprint's  System  Engineer  will conduct  Network  Delay tests
                  using  datascopes  and report the results to the  customer and
                  NCC.

         o        If the  results  of the SE  tests  concur  with  the  customer
                  report,  then the SE will provide the  information  to the NCC
                  Technical Assistance Center (TAC) Manager.

         o        TAC will work with the Customer and SE to determine root cause
                  for the problem and resolve as quickly as possible (maximum of
                  60 days).

1.3      Data Delivery Rate.                         98% with 0-CIR

         Calculation:

<TABLE>
<CAPTION>
<S>                           <C>
                                                Total Egress Kiloframes
                               --------------------------------------------------------
         Data Delivery Rate  = Total Ingress Kiloframes - (Bc + Be Exceeded Kiloframes)
</TABLE>

         Calculation is based on total monthly statistics per PVC.

         Excluded Components:

         o        Discarded Frames due to excess Bc + Be.
         o        Discarded Frames caused by Mis-matched access channel speeds.
         o        Data loss due to local exchange circuit failures.
         o        Data loss during scheduled maintenance window.
         o        Data Delivery Rate percentage  assumes Customer  Configuration
                  on Egress port is  engineered  with enough  capacity to handle
                  traffic loads from the remote sites.

SECTION 2 - GLOBAL FRAME RELAY SERVICE LEVEL AGREEMENTS


- --------------------------------------------------------------------------------
Bridge                                E-3                       January 26, 1996
Amendment 3

<PAGE>

         The following  performance  specifications  represent  Sprint's network
         performance objectives for its Global Frame Relay Services.

2.1      Global Network Availability Objective

<TABLE>
<CAPTION>
<S>                                 <C>
         POP-to-POP                 99.22% monthly (excluding scheduled maintenance downtime)
</TABLE>

         Availability is measured  POP-to-POP.  Network maintenance is generally
         performed Sunday mornings between 00:01 and 05:00 GMT.

2.2      Network Transmission Quality Objective

         Transmission Bit Error Rates (BER) vary by operating region.

                  Transatlantic BERs                 10(-8)

                  Transpacific BERs                  10(-7) to 10(-8)

                  European and Pacific BERs          10(-7)

2.3      Burst Capability Objectives

         Burst Capacity                     Up to Access Channel Speed
         Minimum Burst Interval             AT LEAST One Second

2.4      Data Delivery Rate Objective

         Data  Delivery  Rate (DDR) is the ratio of total egress frames to total
         input  frames.  Its time  interval  is  monthly  and it is a measure of
         frames lost in the network  primarily  due to  transmission  errors and
         network overloads.

                  DDR, Bc (commited bits)              >99.90%, network average
                  DDR, Be (non-commited bits)          99.00%, network average

         Total  input  frames do not include  frames that exceed  Bc+Be as would
         occur with mismatches in access channel speeds.

2.5      Network Delay Objects

         For  delay in the  global  operating  environment,  network  sites  are
         categorized as:

         NA-E:  North America-East        Eastern US and Canada


- --------------------------------------------------------------------------------
Bridge                                E-4                       January 26, 1996
Amendment 3

<PAGE>

         NA-C:   North America-Central    Central US and Canada
         NA-W:   North America-West       Western US and Canada
         EUR-N:  Europe-North             Belgium, UK, Finland, France,
                                             Ireland, Luxembourg, Netherlands,
                                             Norway

         EUR-C:  Europe-Central           Germany, Austria, Switzerland
         EUR-S:  Europe-South             Italy and Spain
         PAC-N:  Pacific-North            Japan and Hong Kong
         PAC-WS  Pacific-West/South       Australia, New Zealand, Singapore

         Figures  presented are average  values of one-way  network delay for 64
         and  1024   byte   frames.   (Ninety-fifth   percentile   figures   are
         approximately 2.5 time the average values). Estimated round-trip delays
         must consider both sides of the customer network access,  CPE and other
         application delays.

                  Average One Way Network Delays (msec) for a 64 Byte Packet

<TABLE>
<CAPTION>
- ------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
               NA-E         NA-C         NA-W         EUR-N        EUR-C        EUR-S        PAC-N        PAC-SW
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
<S>            <C>          <C>          <C>          <C>          <C>          <C>           <C>          <C>
NA-E            27           32           65           83           86           95           157          189
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
NA-C            32           25           49           86           91           101          146          174
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
NA-W            65           49           43           113          116          129          131          148
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
EUR-N           83           86           113          32           29           35           214          252
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
EUR-C           86           91           116          29           25           32           229          260
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
EUR-S           95           101          129          35           32           28           235          266
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
PAC-N           157          146          131          214          229          235          40           260
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
PAC-SW          189          174          148          252          260          266          260          275
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
</TABLE>

         Access  (Approximate  one way delay for a 64 byte  frame for  access at
         various speeds (add two sides for round trip estimations)

<TABLE>
<CAPTION>
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
Access (Kbps)                   Delay (Msec)                 Access (Kbps)                Delay (msec)
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
<S>                             <C>                          <C>                          <C>
56                              20                           768                          3
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
64                              18                           1024                         3
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
128                             10                           1544                         3
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
256                             6                            2048                         3
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
512                             4
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
</TABLE>

         Average One way Network Delays (msec) for a 1024 Byte Packet

<TABLE>
<CAPTION>

- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
               NA-E         NA-C         NA-W         EUR-N        EUR-C        EUR-S        PAC-N        PAC-SW
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
<S>            <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
</TABLE>



- --------------------------------------------------------------------------------
Bridge                                E-5                       January 26, 1996
Amendment 3

<PAGE>
<TABLE>
<CAPTION>
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
<S>            <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
NA-E           63           68           131          149          132          183          231          256
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
NA-C           68           62           116          152          137          189          211          240
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
NA-W           131          116          109          180          162          218          196          213
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
EUR-N          149          152          180          122          97           124          291          322
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
EUR-C          132          137          162          97           73           120          306          327
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
EUR-S          183          189          218          124          120          120          327          317
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
PAC-N          231          211          196          291          306          327          96           337
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
PAC-SW         256          240          213          322          327          317          337          344
- -------------- ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------
</TABLE>

         Access:  Approximate  one way delay for a 1024 byte frame for access at
         various speeds (add two sides for round trip estimations)

<TABLE>
<CAPTION>

- ------------------------------- ---------------------------- ---------------------------- ----------------------------
Access (Kbps)                   Delay (Msec)                 Access (Kbps)                Delay (msec)
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
<S>                             <C>                          <C>                          <C>
56                              167                          768                          14
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
64                              146                          1024                         11
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
128                             74                           1544                         8
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
256                             38                           2048                         7
- ------------------------------- ---------------------------- ---------------------------- ----------------------------
</TABLE>

         Sprint is committed to provide high quality telecommunications services
         to all of its customers.  The following  details Sprint's Service level
         Commitments to Customer for International dedicated X.25 service.

SECTION 3 - GLOBAL X.25 SERVICE LEVEL AGREEMENTS

3.1      X.25     Ticket Priority and Trouble Resolution Objectives

         The following  tables define the ticket  prioritization  scheme and the
         service restoral objectives for international X.25 dedicated services.

         DESCRIPTION

<TABLE>
- ------------------------------------------------------------ ---------------------------------------------------------
<S>                                                          <C>
         Priority 1                                          Critical condition (entire router, PAD
                                                             Or location is out of service)
- ------------------------------------------------------------ ---------------------------------------------------------
         Priority 2                                          Out-of-service condition (X.25 access
                                                             facility or inoperable port on router/
                                                             PAD/switch).  Alternate backup pathway
                                                             connection functional
- ------------------------------------------------------------ ---------------------------------------------------------
</TABLE>



- --------------------------------------------------------------------------------
Bridge                                E-6                       January 26, 1996
Amendment 3

<PAGE>
<TABLE>
<CAPTION>
- ------------------------------------------------------------ ---------------------------------------------------------
<S>                                                          <C>
         Priority 3                                          Service impairment condition (slow
                                                             Response, Virtual Circuit (VC)
                                                             instability).
- ------------------------------------------------------------ ---------------------------------------------------------
</TABLE>

         SERVICE RESTORAL OBJECTIVES
<TABLE>
<CAPTION>
- ------------------------------------------------------------ ---------------------------------------------------------
<S>                                                          <C>
         Priority 1                                          4 hours
- ------------------------------------------------------------ ---------------------------------------------------------
         Priority 2                                          12 hours
- ------------------------------------------------------------ ---------------------------------------------------------
         Priority 3                                          5 days
- ------------------------------------------------------------ ---------------------------------------------------------
</TABLE>

         Problems  reported after 1700 hours or any time on Saturdays,  Sundays,
         or local holidays are expected to be resolved within the  presubscribed
         period beginning at 0800 hours local time on the next business day.

         Sprint  requires  that a Customer  representative  be  available at the
         affected site throughout the  identification,  repair and  confirmation
         process.

3.2      SprintNet X.25 International Service Credits

         Sprint shall award a SprintNet X.25 Service Credit as follows:

         For a Priority 1 outage with an actual  SprintNet  outage  greater than
         eight (8) hours  Sprint  shall award a Service  Credit equal to 1/30 of
         the monthly  non-usage  based  recurring  X.25 Charge for the  affected
         site. For each  additional  eight hours of actual outage,  Sprint shall
         award an  additional  Service  Credit equal to 1/30 of the monthly X.25
         Network Charge for that site. Service Credits shall only be awarded for
         eight hour outage increments.

         For  example,  for a Priority 1 problem  which  exists for sixteen (16)
         hours,  Sprint  shall  issue a  Service  Credit  equal  to 1/15 of that
         month's  non-usage  based X.25  Charges for the  affected  site.  For a
         Priority 1 problem which exists for thirteen  (13) hours,  Sprint shall
         issue a  Service  Credit  equal to 1/30 of that  month's  X.25  Network
         charge for the affected site.

         Outage time will be measured  from the time a trouble  ticket is opened
         to the time service is restored,  utilizing the service trouble tickets
         in the Sprint  Trouble  Reporting  System  (TRS).  No time between 1700
         hours and 0800 hours local time of the next  business  day, or any time
         between  tickets  opened on Saturdays,  Sundays,  or local holidays and
         0800 hours of the next  business  day will be  included  in outage time
         calculations.

         Sprint shall only award Service Credits for Priority 1 problems.



- --------------------------------------------------------------------------------
Bridge                                E-7                       January 26, 1996
Amendment 3

<PAGE>


         Any troubles resulting from a problem with Customer provided equipment,
         software, applications, or personnel will not be included.




- --------------------------------------------------------------------------------
Bridge                                E-8                       January 26, 1996
Amendment 3

<PAGE>
                                  ATTACHMENT F

                        FACILITIES AND SERVICES AGREEMENT

This Facilities and Services  Agreement  ("Agreement")  sets forth the terms and
conditions  which shall  govern  Customer's  lease of certain  space at Sprint's
Point-of-Presence  ("POP") for the purpose of locating certain Customer-provided
equipment at such space.

         1. TERM.  The term of this  Agreement  ("Term") shall coincide with the
period set forth in Section 3 of the Managed  Network  Agreement  between Sprint
and  Customer as amended,  unless  terminated  by either  Party  pursuant to the
provisions  of  Paragraph  16  herein.  The  Term of  this  Agreement  shall  be
automatically  renewed for  successive  one year  periods,  unless  either Party
provides written notice of termination  ninety (90) days prior to the end of the
then current Term.

         2.  EQUIPMENT  RACK  SPACE.  Sprint  agrees to lease to  Customer,  and
Customer  agrees to lease from  Sprint,  during the Term,  floor  space and such
other space as is reasonably necessary for the installation of Customer provided
equipment  ("Equipment  Rack  Space")  at the Sprint POP  site(s)  specified  on
Exhibit  "A"  attached  hereto.  Access to the  Equipment  Rack  Space  shall be
provided to Customer at all times upon reasonable  advance notice to Sprint,  by
Sprint  escort  only,  at such  rates as are set  forth in  Paragraph  7 hereof.
Customer  accepts  the  Equipment  Rack Space "as is" and hereby  covenants  and
agrees to use the Equipment Rack Space for the purposes herein set forth and for
no other purpose and in strict  accordance  with the terms and conditions of any
applicable Sprint leases,  and further agrees to not do, or omit to do, anything
which  will  breach any of the terms or  conditions  of such  applicable  Sprint
leases or cause damage and/or injury to the property and/or  personnel of Sprint
and/or other Sprint customers.

         For lease of the Equipment  Rack Space during the Term,  Customer shall
pay Sprint (i) non-recurring  site preparation  charge of * per each instance of
rack and/or ancillary  services  installation  activity which includes up to two
(2)   consecutive   working  days  for   installation   supervision  and  escort
(thereafter, the escort rates as outlined in Paragraph 7 herein will apply); and
(ii) a monthly  recurring fee of *per each  Equipment  Rack Space per Sprint POP
site used,  which  shall  include  the cost of  electrical  power  furnished  to
Customer by Sprint  hereunder.  The  non-recurring  site preparation  charge and
monthly recurring fee shall not begin until the equipment specified in Exhibit A
is installed.

* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                F-1                       January 26, 1996
Amendment 3

<PAGE>

         3. SITE  CLEAN UP.  Customer  will be  responsible  for  removal of all
installation  material and clean up of effected POP site(s) after  completion of
Customer equipment installation in the Equipment Rack Space.

         4.  DEMARCATION  POINT.  The  point at  which  the  Customer's  network
interconnects  with the Sprint  network  shall be the Sprint  provided DSX cross
connect  (interface) at each Sprint POP site.  This point will be referred to as
the Demarcation  Point. The Demarcation  Point will designate where the division
of responsibility of providing  service and connectivity  takes place.  Customer
shall provide the necessary  interface cabling to the Demarcation Point.  Sprint
will be  responsible  for the service  from the  Demarcation  Point  through the
completion  of the circuit  through the Sprint  network.  The  Customer  will be
responsible for the service from the  Demarcation  Point at each Sprint POP site
to the Customer's premises.

         5. INSTALLATION AND TESTING. Customer shall engineer,  furnish, install
and test, at its sole cost and expense,  all Customer supplied  equipment in the
Equipment  Rack Space.  Prior to  installation,  this  Agreement  shall be fully
executed by both Parties or otherwise  incorporated into any existing  agreement
between the Parties,  and  Customer  shall submit to Sprint for its approval all
engineering plans and  specifications  pertaining to Customer supplied equipment
to be  installed  in the  Equipment  Rack  Space.  Installation  and  testing by
Customer of equipment  located in the Equipment Rack Space shall at all times be
under the direct supervision of a Sprint escort. Title to equipment furnished by
Customer  hereunder  shall,  at all times,  remain in  Customer.  All  equipment
supplied by Customer shall be labeled by the Customer as such.

         6.  EQUIPMENT  MAINTENANCE.  During the Term,  Customer  shall  provide
maintenance  on all Customer  supplied  equipment  installed  in Equipment  Rack
Space.

         All requests for escort service are to be made to the  appropriate  POP
site or Sprint designated location for each Equipment Rack Floor Space location.
Contact  telephone numbers for each POP site are specified on EXHIBIT A, and can
be called 24 hours per day, 7 days a week.

7. ESCORT RATES. Sprint will provide escort service for the Customer to maintain
equipment as  aforesaid,  on a per call basis at the rate of * per hour.  Escort
services  are  provided  for  emergency  repair and  routine  maintenance  under
guidelines as specified in Paragraph 22.

* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                F-2                       January 26, 1996
Amendment 3

<PAGE>

         The foregoing rate shall apply to all Customer  escort requests and are
subject to a one (1) hour minimum charge per call as well as the  specifications
as noted in EXHIBIT A.

         8.  PERMITS  AND FEES.  Customer  will be  responsible  for any permits
and/or fees, as required,  between the Demarcation Point at each Sprint POP site
to the Customer's premises.

         9. ORDER ADMINISTRATION.  Customer shall place orders from time to time
during the Term for Sprint  services to be provided  hereunder by  submitting to
Sprint such information as Sprint shall reasonably request.

         10. POWER. During the Term, Sprint shall furnish to Customer electrical
power  necessary  to meet the  reasonable  requirements  of  Customer at the POP
site(s)  specified  on  Exhibit  A.  If the  power  provided  by  Sprint  causes
interference  with the proper  operation of Customer's  equipment,  the Customer
will be  responsible  for providing at Customer's  sole expense any filtering or
regulation devices within the Equipment Rack Space, to correct the interference.

         11.  TRANSFER,  SALE AND ASSIGNMENT.  Customer shall not sell,  assign,
transfer or otherwise  encumber any interest it has hereunder or may have in the
Equipment Rack Space,  the POP(s),  POP site(s),  or  Sprint-supplied  equipment
therein, or any portion thereof, by virtue of this Agreement,  without the prior
written consent of Sprint, which shall not be unreasonably withheld.

         12. NOTICES.  Any notices or  communications  required or desired to be
given in  connection  with  this  Agreement  shall be in  writing  and  shall be
delivered to the  applicable  Party by hand or by U.S.  Certified  Mail,  return
receipt requested, addressed as follows:

         Sprint:         Sprint Communications Company L.P.
                         9350 Metcalf Avenue
                         Overland Park, KS 66212
                         Attn:  Network Real Estate Acquisition & Administration

         With a copy to: Sprint Communications Company L.P.
                         8140 Ward Parkway
                         Kansas City, MO 64114
                         Attn:  General Counsel

         Customer:


- --------------------------------------------------------------------------------
Bridge                                F-3                       January 26, 1996
Amendment 3

<PAGE>

         Any notice given under this  Agreement  shall be effective upon receipt
of notice by the other  Party.  Either  Party may  change  the above  address by
written notice to the other Party as provided above.

         13.  WARRANTIES.  THE  PARTIES DO NOT MAKE ANY  WARRANTIES,  EXPRESS OR
IMPLIED,  WITH RESPECT TO THE POP SITE(S) AS LISTED ON EXHIBIT A, ANY  EQUIPMENT
PLACED THEREIN AND OTHER SERVICES,  MATERIALS AND EQUIPMENT PROVIDED  HEREUNDER,
INCLUDING,  WITHOUT  LIMITATION,  WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.

         14.  LIMITATION OF LIABILITY.  IN NO EVENT SHALL EITHER PARTY HEREUNDER
BE LIABLE  TO THE OTHER  PARTY FOR ANY  INDIRECT,  CONSEQUENTIAL  OR  INCIDENTAL
DAMAGES,  INCLUDING,  WITHOUT LIMITATION,  LOSS OF REVENUE, LOSS OF CUSTOMERS OR
CLIENTS,  LOSS OF GOODWILL  OR LOSS OF PROFITS,  ARISING IN ANY MANNER FROM THIS
AGREEMENT  AND THE  PERFORMANCE  OR  NONPERFORMANCE  OF  OBLIGATIONS  HEREUNDER.
FURTHERMORE,  IN NO EVENT WILL  SPRINT BE LIABLE TO  CUSTOMER  FOR ANY  DAMAGES,
DIRECT OR INDIRECT, TO CUSTOMER SUPPLIED EQUIPMENT ARISING OUT OF CUSTOMER'S USE
OF THE POP  SITE(S)  LISTED ON  EXHIBIT A OR THE  SERVICES  PROVIDED  HEREUNDER,
UNLESS SUCH DAMAGES ARE THE RESULT OF SPRINT'S NEGLIGENCE OR WILLFUL MISCONDUCT.
SPRINT SHALL TAKE  REASONABLE  PRECAUTIONS TO PROVIDE A SECURE  ENVIRONMENT  FOR
CUSTOMER SUPPLIED EQUIPMENT.

         15.      INDEMNIFICATION.

                  15.1  Customer  shall  indemnify,  defend  and  hold  harmless
         Sprint,  its  directors,   officers,   employees,   trade  contractors,
         suppliers,  successors  and  assigns  from any  loss,  damage,  cost of
         defense  (including  reasonable  attorneys' fees and court costs),  and
         injuries,  including death to any person, arising out of this Agreement
         (including  any breach  hereof by Customer) to the extent caused by the
         negligence or willful misconduct of Customer, its agents or employees.



- --------------------------------------------------------------------------------
Bridge                                F-4                       January 26, 1996
Amendment 3

<PAGE>

                  15.2  Sprint  shall   indemnify,   defend  and  hold  harmless
         Customer,  its  directors,   officers,  employees,  trade  contractors,
         suppliers,  successors  and  assigns  from any  loss,  damage,  cost of
         defense  (including  reasonable  attorneys' fees and court costs),  and
         injuries,  including death to any person, arising out of this Agreement
         (including  any breach  hereof by  Sprint) to the extent  caused by the
         negligence or willful misconduct of Sprint, its agents, or employees.

         16.      TERMINATION OF SERVICES/FACILITIES:  COMPLIANCE.

                  16.1  Sprint may limit the use of the Equipment  Rack Space or
         any portion  thereof by Customer  hereunder when  necessary  because of
         conditions  beyond  its  control  as set  forth  in  Paragraph  23.  In
         addition,  Sprint  reserves  the right at all times  during the Term to
         suspend  any  and  all  services  and/or   facilities  to  be  provided
         hereunder,  including,  without  limitation to furnishing of electrical
         power,  and remove,  change or  otherwise  terminate  the  operation of
         Customer-supplied  equipment  installed  in the  Equipment  Rack  Space
         without  notice,  if Sprint deems,  in its sole  discretion,  that such
         action is necessary to protect the public or Sprint personnel,  agents,
         and Sprint  facilities  or services from damages or injury of any kind.
         Sprint  may also  effect  such  action  after  notice  to  Customer  in
         accordance with Paragraph 20 hereof. Where possible, Sprint will notify
         Customer  promptly of such action and work in cooperation with Customer
         to effect such remedies so as to permit the Customer-supplied equipment
         to  be  returned   to   operation   in  an   acceptable   manner.   All
         Customer-supplied equipment installed in the Equipment Rack Space shall
         comply with all applicable laws, regulations and standards,  including,
         without limitation, those standards established by Sprint, and shall be
         maintained by Customer in a manner so as to ensure continued compliance
         therewith  and so as to avoid hazard or damage to Sprint  facilities or
         injury to Sprint  employees,  agents and suppliers or to the public. In
         the case where additional protection facilities are required,  the same
         shall be provided by Customer, at Customer's sole expense. Sprint shall
         maintain  the  environmental  parameters  of the  Equipment  Rack Space
         within  customary  limits for commercial  operation so long as Customer
         maintains  Customer-supplied  equipment installed therein in accordance
         with the applicable specifications.

                  16.2  Either Party may terminate this Agreement at any time by
         giving  written  notice  as  outlined  in  Paragraph  12.  The  maximum
         liability to the Customer,  due to termination,  will be six (6) months
         of rental  charges for each Equipment Rack Space as stated in Paragraph
         2, Equipment Rack



- --------------------------------------------------------------------------------
Bridge                                F-5                       January 26, 1996
Amendment 3

<PAGE>

         Space,  from the date of termination  and any charges  associated  with
         Sprint escort during equipment removal.

         17.      INSURANCE.

                  17.1 CUSTOMER'S INSURANCE. Customer shall, at its own expense,
         procure and maintain  throughout the Term, the following insurance from
         an   insurance   company   or   companies   of   recognized   financial
         responsibility:   (i)  Comprehensive   General   Liability   insurance,
         including  Contractual   Liability,   insuring  against  liability  for
         Personal  Injury or death,  Property  Damage or other loss in amount of
         not less than  $5,000,000  Combined  Single  Limit with  respect to any
         occurrence,  and  (ii)  Comprehensive  Automobile  Liability  insurance
         insuring the ownership, maintenance or use of owned, non-owned or hired
         automobiles in an amount not less than $1,000,000 Combined Single Limit
         for  Bodily  Injury or  Property  Damage  for any one  accident,  (iii)
         Worker's  Compensation  insurance,  including Employer's Liability with
         limits of not less than $100,000 per accident,  in compliance  with any
         Worker's Compensation or similar statute in the State where any work is
         performed. The insurance specified in subparagraphs i and ii shall name
         Sprint as Additional Insured.  Customer shall deliver to Sprint,  prior
         to and as a  condition  of its  use of  the  Equipment  Rack  Space,  a
         Certificate  of  Insurance   evidencing  all  of  the  above  insurance
         requirements  and shall indicate that Sprint shall be notified not less
         than thirty (30) days prior to any  cancellation  or material change in
         any  coverage.  In no  event  shall  the  limits  of said  policies  be
         considered as limiting the liability of Customer under this  Agreement.
         Customer may not enter Sprint's POP locations if the provisions of this
         paragraph have not been met.

         18.  GOVERNING  LAW.  This  Agreement  shall be  constructed  under and
enforced in accordance  with, and the validity and  performance  hereof shall be
governed by, the laws of the State of Kansas.

         19. ENTIRE AGREEMENT.  This Agreement supersedes and replaces any prior
agreements,  understanding or arrangements,  whether oral or written, heretofore
made  between the  Parties and  relating  to the  subject  matter  hereof.  This
Agreement  shall not be  modified,  changed,  altered  or  amended  except by an
express written agreement signed by duly authorized  representatives  of both of
the Parties hereto.

         20.  DEFAULT.  In addition  to any right of  termination  provided  for
elsewhere herein, the  non-defaulting  Party hereto may terminate this Agreement
upon the  occurrence  of any of the  following  events which shall  constitute a
default hereunder:



- --------------------------------------------------------------------------------
Bridge                                F-6                       January 26, 1996
Amendment 3

<PAGE>

                  (a)  Material  breach of this  Agreement  after notice of such
         breach and failure of the  breaching  Party to cure such breach  within
         thirty (30) days of receipt of such notice;
                  (b) A final  determination by any  governmental  entity having
         jurisdiction  over the facilities  and/or services  provided under this
         Agreement  that the  relationship  of Sprint  and  Customer  and/or the
         facilities  and/or  services  provided  hereunder  are contrary to then
         existing laws; or
                  (c) The  filing  of  bankruptcy  by  either  Party  under  any
         federal,  state or  municipal  bankruptcy  or  insolvency  act,  or the
         appointment  of a receiver or any act or action  constituting a general
         assignment  by either  Party of its  properties  and  interest  for the
         benefit of its  creditors.
         Upon the  occurrence of a default by either Party,  the other Party may
exercise one or more of the following remedies:  (i) terminate this Agreement as
aforesaid;  and/or  (ii)  exercise  any other  rights or  remedies  which may be
available at law or in equity. Upon the occurrence of a default,  the prevailing
Party shall have all reasonable  expenses  (including court costs and reasonable
attorneys' fees) paid by the other Party.
         21.  PAYMENTS.  All  charges  incurred by  Customer  hereunder  will be
invoiced monthly by Sprint. Total Customer recurring and non-recurring Equipment
Rack Space lease  charges for the Term of this  Agreement are shown on Exhibit A
and are based upon the rates set forth in Paragraph 2, Equipment Rack Space, and
the POP site(s) and  quantities of Equipment Rack Space(s) as shown on Exhibit A
hereof.  Escort charges will be charged and invoiced  monthly in accordance with
the terms set forth in  Paragraph 7 herein.  All amounts  stated on each invoice
shall be due and payable within thirty (30) days of receipt of said invoice. The
charges for service  provided  hereunder are exclusive of any applicable  sales,
use, excise and like taxes which will be separately  stated and included on each
applicable  invoice.  All charges for services  provided  hereunder  that remain
unpaid for a period of 10 days or more after written  notice  thereof,  shall be
subject  to  interest  thereon  at a rate of the  lesser of 18% per annum or the
maximum rate allowable by applicable law.
         22.  RESPONSE TIME. In the  performance of its  obligations  hereunder,
Sprint  shall  endeavor  to  respond to a Customer  request  for escort  service
hereunder  within (i) one (1) hour when  notified by  Customer  from 8:00 a.m. -
5:00 p.m. on business days and when such request  pertains to a manned POP site,
(ii)  within  three (3) hours when  notified by Customer at any other time for a
manned POP site, and (iii) within four (4) hours for an unmanned POP site at any
time.  THE ABOVE RESPONSE TIMES APPLY TO CUSTOMER  EMERGENCY  REPAIR  SITUATIONS
ONLY.  THESE RESPONSE TIMES ASSUME THAT NO EMERGENCY  REPAIRS ARE IN PROGRESS ON
THE SPRINT  NETWORK IN THIS AREA.  Emergency  Repairs on the Sprint network will
take precedence over escort services which may cause lengthening of the response
times. For routine maintenance,  72 hours notice is required.  Route maintenance
will only



- --------------------------------------------------------------------------------
Bridge                                F-7                       January 26, 1996
Amendment 3

<PAGE>

be allowed  between the hours of 8:00 a.m. and 5:00 p.m.  Monday through Friday,
with  holidays   excluded.   Service  affecting   routine   maintenance  may  be
accomplished  outside of the normal routine maintenance window, but requires 120
hour advance  notification.  When escort service is provided by Sprint, both the
Sprint representative and Customer  representative will sign a CPE Repair/Vendor
Escort Record form  confirming  the location,  time, and date the escort service
took place.

         23. INABILITY TO PERFORM. Neither Party shall be responsible for delays
in the  performance  of its  obligations  hereunder  caused by events beyond its
reasonable control.



- --------------------------------------------------------------------------------
Bridge                                F-8                       January 26, 1996
Amendment 3


                                                                   EXHIBIT 10.17


                                 AMENDMENT FOUR
                                     TO THE
                            MANAGED NETWORK AGREEMENT
                                     BETWEEN
                       SPRINT COMMUNICATIONS COMPANY, L.P.
                                       AND
                               BRIDGE DATA COMPANY

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.

The  Managed  Network  Agreement  ("Agreement")  between  Sprint  Communications
Company, L.P. ("Sprint") and Bridge Data Company ("Bridge"), having an effective
date of March 1, 1995, as amended, is hereby further amended as set forth below.

WHEREAS,  Sprint and Bridge have  previously  entered into an Agreement  for the
provision of managed network services; and

WHEREAS,  Bridge now  desires  to  perform  the  management  services  currently
performed by Sprint under the Agreement, and Sprint agrees to allow Bridge to do
so; and

WHEREAS,  Bridge desires to purchase Asynchronous Transfer Mode ("ATM") services
from Sprint, and Sprint desires to provide ATM services to Bridge.

NOW THEREFORE, the parties mutually agree to amend the Agreement as follows:

1.       Section 2. Contract Documents and Definitions. Delete the definition of
         "Products and Services" and replace with the following definition:

"Products and Services" means the equipment, facilities,  programming,  software
and related services  provided by Sprint to Bridge  hereunder.  The Products and
Services  include Sprint Frame Relay service  and/or Sprint ATM service,  but do
not include  special access lines that may be used by Bridge in connection  with
the Products and Services.

2.       Section 9. Minimum  Commitment.  Delete the words "and management" from
         the second sentence of the second paragraph.

3.       Section 10. Acceptance. Delete the second sentence of paragraph (a) and
         replace with the following sentence:

                  "If test  results  show  that  Products  and/or  Services  are
                  performing in accordance with the Performance  Specifications,
                  Bridge shall accept the Product or Service at an  Installation
                  Site immediately unless the Installation Site


Bridge/Sprint Confidential               -1-                             6/26/96

<PAGE>

                  is an order type "Conversion," in which case Bridge shall have
                  twenty-one  (21) days from receipt of Sprint's test results to
                  accept the Products and Services."

3.       Section 16(b) Provision of Products and Services. Delete the words "and
         manage" from the first sentence.

4.       Attachment  A  (Scope  of  Work).  Attachment  A is  superseded  in its
         entirety  by the revised  Attachment  A (Scope of Work) which is hereby
         incorporated into the Agreement.

5.       Attachment B (Pricing).  Attachment B is  superseded in its entirety by
         the revised  Attachment B (Pricing) which is hereby  incorporated  into
         the Agreement.

6.       Bridge has agreed to buy out the maintenance contract from Telebit that
         Sprint has prepaid as follows:

<TABLE>
<CAPTION>

                  Distribution          Annual Price   Months Remaining        Total

Equipment        Site         Qty
<S>             <C>           <C>     <C>                   <C>            <C>
    NB40        Chicago         1       $    539.33           8              $   359.55

    NB40        New York        2       $   1078.66           8              $   719.11

    NB40        Kansas          1       $    539.33           8              $   359.55

    NB40        Boston          1       $    539.33           8              $   359.55

    NB40        Rialto          1       $    539.33           8              $   359.55

    NB40        Oroville        1       $    539.33           8              $   359.55
</TABLE>

         Total Amount owed to Sprint for maintenance buyout:  $2,516.86

7.       All other terms and  conditions of the  Agreement  shall remain in full
         force and effect, except as expressly stated herein.

IN WITNESS WHEREOF, the parties have executed this Amendment Four as of the date
of the last signature below.

Bridge/Sprint Confidential               -2-                             6/26/96

<PAGE>


SPRINT COMMUNICATIONS CO., L.P.                BRIDGE DATA COMPANY

/s/ George Putney                               /s/ Robert McCormick
- ------------------------------                  ---------------------------
Signature                                       Signature


George Putney                                   Robert McCormick
- ------------------------------                  ---------------------------
Printed Name                                    Printed Name


Branch Manager                                  Executive Vice President
- ------------------------------                  ---------------------------
Title                                           Title


7/29/94                                         7/22/96
- ------------------------------                  ---------------------------
Date                                            Date



Bridge/Sprint Confidential               -3-                             6/26/96


<PAGE>

                                  ATTACHMENT A

                                  SCOPE OF WORK

SECTION 1.  INTRODUCTION

1.1      SCOPE

         This Attachment  describes the technical  functionality and topology of
         the   domestic   telecommunications   requirements   of   Bridge.   The
         Sprint-supplied  Products and Services will provide  network  transport
         for the Bridge network.

1.2      OVERVIEW

         Sprint will  provide  Bridge with frame relay wide area  network  (WAN)
         transport for it's  router-based  network as well as  installation  and
         next day swap-out maintenance.  All other functions previously provided
         by Sprint will be delegated to and provided by Bridge.  These functions
         include router configuration,  router monitoring, and router management
         including  troubleshooting  and  resolution  of  all  software  related
         anomalies.

         Further,  Bridge shall undertake all transport  management,  including,
         but not  limited  to WAN  access  facility  sizing at  customer  sites,
         distribution  sites and St.  Louis  data  centers,  density of PVCs per
         hardware port on routers and switches,  and the number of WAN ports and
         associated access facilities  required at customer sites,  distribution
         sites and St.  Louis data  centers.  Bridge shall also order and manage
         dial backup functionality including equipment and analog telco lines at
         distribution  sites.  Sprint will mange the  ordering  of analog  telco
         lines at the client sites at time of initial installation.  Sprint will
         provide  maintenance  on associated  hardware at client sites only. All
         dedicated circuits will be ordered through Sprint.

1.3      SPRINT'S SOLUTION

         Sprint will provide all WAN transport  consisting  of dedicated  access
         from  Bridge  customer  sites,  distribution  sites and St.  Louis data
         centers.  Additionally,  Sprint will provide  installation and hardware
         swap-out  maintenance  of routers,  modems and DSUs at customer  sites.
         Sprint will also install Bridge servers at client sites. Maintenance of
         the servers will be provided by Bridge.

- --------------------------------------------------------------------------------
Amendment 4                           A-1                                6/26/96


<PAGE>

SECTION 2.  NETWORK OVERVIEW

2.1      NETWORK DESIGN OVERVIEW

         The network design for the Bridge network is summarized in Figure 2-1.

         [GRAPHIC OMITTED]

2.2      NETWORK NOTES

         The following list of assumptions and design  considerations  have been
         utilized  on  the  Bridge  Information   network  design  and  includes
         associated Sprint and Bridge responsibilities.

         o        Bridge will provide WAN bandwidth  management  for all network
                  facilities.  This includes remote customer sites, distribution
                  sites,  and the St. Louis data centers.  Bandwidth  management
                  includes but is not limited to  determination  of  appropriate
                  channel  sizes at all customer,  distribution

- --------------------------------------------------------------------------------
Amendment 4                           A-2                                6/26/96


<PAGE>

                  and data center sites, numbers of channels,  PVCs per channel,
                  PVCs per port on  routers  and  switches,  number of ports per
                  switch or router, and number of switches or routers required.

         o        Bridge   will   use   Sprint-standard    circuit   utilization
                  guidelines.  Once a circuit utilization exceed 50%, procedures
                  will be initiated for the installation of additional  circuits
                  or  higher  bandwidth  circuits  on  the  affected  path.  The
                  objective is to have additional bandwidth installed so that no
                  circuit  utilization  exceeds  70% at  any  time  to  maintain
                  optimal network performance.

         o        Sprint will provide support for 100  installations  per month.
                  These can be any  combination of new  installations  or Bridge
                  reschedules installations.  The minimum number of installs per
                  day  is 6.  Installations  will  be  scheduled  during  normal
                  business hours, 8-5 CST.

         o        For new  installations,  Sprint will  install the Bay Networks
                  router and Netblazer,  the dial backup and  diagnostic  modem,
                  and the DSU.  Sprint  will  also  cable  the  newly  installed
                  equipment to the Bridge provided LAN.

         o        Sprint  will  configure  the  Telebit  NetBlazer  and load the
                  router with the final router configuration provided/created by
                  Bridge.  This configuration file will be located on a platform
                  provided by Bridge.  Bridge  must  provide  readily  available
                  remote access to this system. The configuration  files must be
                  available  two (2) business  days prior to site  installation.
                  The IP address and the required  directory  structure  must be
                  provided  to  Sprint  five  (5)  business  days  prior  to the
                  scheduled install date.

         o        Sprint will not troubleshoot any protocol problems,  including
                  protocol  problems  which occur  during  client site  hardware
                  installation.

         o        Bridge will perform a site acceptance when they receive a call
                  from Sprint  saying the site  installation  is complete.  Site
                  acceptance will be based on the following tests:
                  -        Telnet/Ping to router
                  -        Telnet/Ping to Net Blazer
                  -        Telnet/Ping to the Bridge servers
                  -        Check  operation  of dial back up by  unplugging  56k
                           line  and   determining   whether   the  dial  backup
                           connection to a distribution site is established
                  -        Check whether dial backup  disconnects  after the 56k
                           is restored
                  Should   Bridge  be  unable  to  perform   these   tests  upon
                  notification   from  Sprint  that  the  site  installation  is
                  complete, the site installation will be accepted by default.

         o        Bridge will be responsible for all network software upgrades.

- --------------------------------------------------------------------------------
Amendment 4                           A-3                                6/26/96


<PAGE>

         o        Bridge will  provide all  maintenance  of Bridge  equipment at
                  collocation sites.

         o        Sprint will provide only next day swap-out  maintenance Monday
                  - Friday 8 am - 5 pm for  failed or  suspected  failed  CPE at
                  Bridge customer sites. The CPE technician will ensure that the
                  failed CPE is cabled  properly  and that the device  powers up
                  successfully.   Bridge   will  have   software   configuration
                  responsibility.

         o        Sprint  will not  provide  any router  network  monitoring  or
                  management.

         o        Bridge  will  report  all  appropriate  problems  to  Sprint's
                  Service  Management  Center (SMC). The Network Service Manager
                  (NSM) will support  resolution  of those  tickets that require
                  hardware maintenance.

         o        There will be charge for  dispatch to sites that are not ready
                  for  installation or swap-out  maintenance  (refer to contract
                  page B-3, item 6).

         o        Bridge will purchase all equipment through Sprint.

         o        Bridge will be responsible for working  directly with hardware
                  vendors  with  regard to  hardware  engineering  and  software
                  malfunction.

2.3      TOPOLOGY

         Sprint will  provide  Bridge with WAN  transport  for the frame  relay,
         router-based   network.   This  will  include  the   installation   and
         maintenance of Bay Networks routers,  Telebit routers, Sprint certified
         DSUs and CSUs and dial backup modems at client sites.

         Each  remote site will be provided  with  dedicated  access to Sprint's
         wide area network  (WAN).  The bandwidth of the access  channel will be
         determined  by Bridge.  The remote site will build one or two PVCs into
         Sprint's WAN which will  terminate at one of six regional  distribution
         sites. The  distribution  sites are collocated at Sprint POPs and house
         Telebit routers,  Bay Networks routers,  Cascade switches,  modem banks
         and CSUs. The Cascade switches are used both as a point of connectivity
         for GFIC  customers as well as an ATM  platform as Bridge  migrates the
         backbone   (distribution  site  to  St.  Louis  data  centers)  to  ATM
         transport.

         Each  distribution  site  Bay  networks  router  will act as a point of
         consolidation  for  Bridge  customer  traffic.  The  distribution  site
         routers will  terminate  traffic  from all  customer  sites within that
         region.  The routers will in turn route the traffic from those customer
         sites to  discrete  PVCs built from the  distribution  sites to each of
         Bridge's two St. Louis data centers.

- --------------------------------------------------------------------------------
Amendment 4                           A-4                                6/26/96


<PAGE>

2.4      TROUBLE RESOLUTION RESPONSIBILITY

         Bridge will provide all  proactive  monitoring  of network  facilities.
         Sprint  will  provide  only  reactive  maintenance.  Upon  report of an
         anomaly, Bridge will undertake the following diagnostic procedures.

         Client Sites

         AN Router -

                  Software - Bridge  will  access the  router  and  inspect  the
                  configuration   files.   Bridge  workstations  have  pull-down
                  screens that display the proper  configuration of the routers.
                  If a  configuration  is determined to be corrupted,  they will
                  rebuild the software configuration.

                  Hardware  - If an AN router  remains  in the  "boot" or "diag"
                  mode after being power  cycled,  it must be  replaced.  Bridge
                  will arrange to have power  cycling done by their client or by
                  their dispatch technicians. Other problems will be isolated by
                  using  the  router  logs,   Site  Manager,   and  the  network
                  management console.  When  troubleshooting  indicated a failed
                  router,  Sprint will be  contacted to open a ticket for router
                  replacement.

         CSU - If  diagnostics  reveal a good  router and  Sprint/telco  find no
         problems with the telco  access,  Bridge will open a ticket with Sprint
         for CSU replacement.

         Netblazer - If Netblazer alarm appears on Bridge's  network  management
         console,   Bridge  will  work  with  their  client  or  their  dispatch
         technician to power cycle the Netblazer. If the Netblazer fails to come
         up, Bridge will open a ticket with Sprint for Netblazer replacement.

         Modem - Bridge will determine  whether a problem appears to be with the
         local  dial line or the  modem.  If the dial line is tested  and proven
         functional,  Bridge will access the Netblazer for another view into the
         modem.  If these tests indicate a defective  modem,  Bridge will open a
         ticket with Sprint for modem  replacement.  If the dial line tests bad,
         Bridge will report the problem directly to the LEC.

         Cabling  - Telco  will be  responsible  for  wiring  to the  demarc  or
         extended  demarc  (when  telco  installed)  where  appropriate.   After
         accepted  installation,  Bridge will be responsible for troubleshooting
         all other customer premise wiring.

- --------------------------------------------------------------------------------
Amendment 4                           A-5                                6/26/96


<PAGE>

         Transport  - Sprint  will be the  point of  contact  for all  transport
         related problems, including amamolies associated with the LEC access on
         dedicated  circuits.  Bridge  will open a ticket with the SMC to report
         any transport problems.

         Distribution Sites

         Bridge will be responsible for the  troubleshooting  and maintenance of
         all distribution equipment located in Sprint POPs. This will include:

         o        Bay BLN Routers
         o        Cascade Switches
         o        Telebit Netblazer 40 Router
         o        Microcom Modems and QX chassis
         o        Adtran CSUs and chassis.  (Will be replaced by Visual Networks
                  CSUs)
         o        Ethernet transceivers
         o        UPS (May be Sprint provided. Procedures to be addressed)
         o        Dial lines (Both dial back-up and equipment management lines)
         o        Cabling associated with the above equipment.**

         ** Sprint   is   responsible   for   installing   and   replacing   all
         intra-cabinet/bay  and  inter-cabinet/bay   wiring.  Sprint  will  also
         connect such cabling to the equipment under Bridge direction at time of
         installation or replacement.

         Bridge will perform  troubleshooting of distribution site problems from
         their St. Louis  Network  Management  Center using  network  management
         tools such as HP OpenView, Bay Site Manager, etc.

         If  assistance is required  from local Sprint  operations  (such as for
         power cycling  equipment),  Bridge will open a trouble  ticket with the
         SMC.  The NSM or SE will then call the Sprint POP  stating  that Bridge
         has an open ticket and needs  assistance.  This will result in a charge
         to Bridge.

         If Bridge  determines  that equipment  needs to be replaced,  they will
         arrange for  shipment  and  schedule  the  dispatch  of a Bridge  field
         service  technician.  A trouble  ticket  will be opened with the SMC so
         that the Sprint personnel are aware and can provide access.

         If  there  is  a  failure  of  the  dial  lines   associated  with  the
         distribution   site,  Bridge  will  open  a  trouble  ticket  with  the
         appropriate  local exchange  carrier.  If the local exchange carrier or
         Bridge  field  service  requires  access to the  Sprint  POP, a trouble
         ticket will be opened with the SMC.

         For  routine or  preventative  maintenance,  Bridge will open a trouble
         ticket with the SMC in order to gain access to the Sprint POP.

- --------------------------------------------------------------------------------
Amendment 4                           A-6                                6/26/96


<PAGE>

         Sprint will be the point of contact for all transport related problems,
         including  amamolies  associated  with  the  LEC  access  on  dedicated
         circuits.  Bridge  will  open a  ticket  with  the  SMC to  report  any
         transport problems.

2.5      DISPATCH PROCEDURE

         Upon notification of a network anomaly,  Bridge will attempt to isolate
         the problem.  If the problem  appears to be with either the client site
         hardware or WAN  transport,  Bridge  will open a ticket  with  Sprint's
         Service  Management  Center  (SMC) using  either the network or private
         line address.

         The SMC will forward the ticket to the appropriate transport fix agency
         (Private Line Service Center or Frame Relay Network Control Center). If
         the WAN tests  clean,  and the anomaly  appears to be  associated  with
         client site  hardware,  either the Network  Services  Manager  (NSM) or
         Systems  Engineer (SE) will submit  script to the Dallas  warehouse for
         overnight  shipment of the failed  hardware to the client site.  Bridge
         and/or the NSM will  coordinate  CPE dispatch  with the SMC on the open
         ticket.

         After  replacement,  Sprint will ship the failed router to Bay Networks
         for repair. After repair, Bay Networks will ship the router back to the
         Dallas depot for placement in the Bridge spares inventory.

2.6      CANADA SITES

         Sprint management practices and procedures will remain unchanged for an
         interim period for sites in Canada until these practices and procedures
         can be fully addressed.

- --------------------------------------------------------------------------------
Amendment 4                           A-7                                6/26/96


<PAGE>


                                  ATTACHMENT B

                                DOMESTIC PRICING

I.       EQUIPMENT - PURCHASE PRICE

<TABLE>
<CAPTION>
Model                    Description                                                 List Price          Net Price
- -----                    -----------                                                 ----------          ---------
<S>                      <C>                                                           <C>                <C>
20002                    BayNetworks AN Ethernet                                          *                   *
                         (4M DRAM) Incl 7919 & 7526 (2)

42001006                 BayNetworks AN IP System Suite                                   *                   *

AE 1001006               BayNetworks 1 Ethernet X2 Sync                                   *                   *
                         (4 M DRAM) incl DTE/DTE cable (2)(II)
AE008017                 BayNetworks IP Access Suite Software (I)                         *                   *
7919                     BayNetworks Power Cord (2)                                       *                   *

AE10011007               BayNetworks AN Ethernet X2 Sync                                  *                   *
                         (8M DRAM) incl DTE/DCE cable (2)

PN2DE                    Telebit Netblazer & Modem Cable (3)                              *                   *

LS2-PT                   Telebit Netblazer LS & Modem Cable (3)(10)                       *                   *

AP-8810SA                Teleblazer Standalone Modem (3)(10)                              *                   *

LEOA                     BNC Transeiver Package (4)                                       *                   *

28.8ES                   Desporte Fast 28.8 ES Standalone (5)                             *                   *

SP1530                   Adtran DSU III AR Standalone (6)                                 *                   *

930703-008               HD44 (m) to V.35(M) Wan                                          *                   *
                         Interface cable

910418-008               DB9(M)/DB25 Cable                                                *                   *
950846-006               DB25(F)/V.35(M) Cable                                            *                   *

3520                     Codex DSU (7)                                                    *                   *

PFLX4700-002             DTS DSU/CSU Card Set(8)                                          *                   *
PFLX4704-002             DTS CD Powered 4 slot Equip Shelf(8)                             *                   *
PFLX4700-004             DTS SNMP Card Set (8)                                            *                   *
KMTG4704-001             DTC 4704 Rack Mounting KIT(8)                                    *                   *
PCBL4700-010             DTS Daisy Chain CSU Interconnect(8)                              *                   *

                         Cascade (9)
</TABLE>

* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-1                               6/26/96

<PAGE>
<TABLE>
<CAPTION>
MODEL                    DESCRIPTION                                                   LIST PRICE         NET PRICE
- -----                    -----------                                                   ----------         ---------
<S>                      <C>                                                           <C>                <C>
ASE-BDE                  Visual Networks DSU                                              *                   *
                         V.35 Router Cable (12)                                           *                   *
                         Cable Package includes:                                          *                   *
                           (1) Network Interface Cable
                           (1) Ethernet Patch Cable
                           (1) Administration Port Cable

ASE-EDE                  Visual Networks DSU                                              *                   *
</TABLE>

NOTES:

1.)      The  equipment  listed is  equipment  currently  being  installed.  See
         product discounts for other equipment not listed.

2.)      BayNetworks  equipment will be discounted * off of List Price, provided
         Bridge purchases all BayNetworks equipment through Sprint.

3.)      Sprint  will offer a * discount  on Telebit  Networking  Hardware  List
         Price.

4.)      Net price includes one Transceiver, (2) Terminators, and installation.

5.)      Sprint will offer a * discount on Microcom Modem Equipment List Price.

6.)      If Bridge  does not  purchase a DSU from  Sprint,  and Sprint  utilizes
         Bridge DSUs, it is Bridge's responsibility to provide two DSU cables as
         well as the DSU.  One  cable  will  connect  to the  router  and one to
         connect to the Telco demarc.

7.)      Sprint  will  utilize  existing  Bridge  Codex  3520  DSUs.  It will be
         Bridge's  responsibility  to de-install the DSU, upgrade the cables and
         ship the DSU to Sprint's inventory site(s).

8.)      Sprint will offer a * discount  on Digital  Transmission  System,  Inc.
         (DTS) equipment.

9.)      Cascade equipment will be discounted * off of current list price.

10.)     Sprint  will  offer  these  modem  models  or  those  with   equivalent
         functionality.

11.)     Number of ethernet  cables  required  will vary upon site type and site
         configuration.

* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-2                                6/26/96


<PAGE>

II.      CPE INSTALLATION

<TABLE>
<CAPTION>
                                                                    First Device(6)               Second Device (5)
                 Equipment                                          Install Price                   Install Price
                 ---------                                          -------------                   -------------

<S>                                                                 <C>                           <C>
                 Bay Networks Router/DSU (2)                          * /Router                     * /Router
                 Microcom Modem and NetBlazer Server (1)              * /pair                       * /pair
                 Server (1) (3)                                       * /Server                     * /Server
                 Transceiver/Terminator/T-Connector (1,4)           No Charge                     No Charge

                 Microcom 28.8ES Modem                               * /modem                      * /modem

                          OR
                 Teleblazer Modem (1)

                 Cascade Switch                                       *  /ea                        * /ea
                 DTS                                                     (2)                           (2)

                 Visual Networks DSU ASE-BDE                          * /ea                         * /ea
                 Visual Networks DSU ASE-EDE                        List                          List
</TABLE>

NOTES:

1.)      Installation  must be done at the same time the Bay Networks  router is
         installed.

2.)      Installation  of a DSU at any other  time  than  with a router  will be
         * /occurrence.

3.)      Installation  of a server at any other time than with a router  will be
         * /occurrence.

4.)      Installation  of a transceiver  and two  terminators  at any time other
         than with a router is * /occurrence.

5.)      Installation  of the second  device must be at the same site and at the
         same time as the first device.

6.)      A  dispatch  charge  of * will be  assessed  for any site when a Sprint
         technician is dispatched and the site is not prepared for the install.

7.)      A dispatch charge of * will be assessed any time a Sprint technician is
         dispatched to a site but (i) the technician is unable to gain access to
         the Bridge facility or (ii) the technician finds no trouble.

8.)      If  a  router  upgrade  requires  the  installation  of a  new  router,
         installation charges will apply.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-3                                6/26/96


<PAGE>

III.     MAINTENANCE

<TABLE>
<CAPTION>
                           Equipment                               Response                     Price
                           ---------                               --------                     -----
<S>                                                      <C>                           <C>
        Bay Networks Routers (1)(4)                      Next day, On-site Remedial     * of List/mo

        Bay Networks Routers (1)(3)(4)                   7x24 w/4 hr response,          * of List/mo
                                                         On-site Remedial

        PN2DE NetBlazer or Netblazer LS                  Next Business day,             * /pair/mo (6)
        (2) Microcom 28.8ES Modem or                     On-site Remedial
        Teleblazer Standalone Modem

        Microcom 28.8ES Modem                            Next Business day, On-site     * /month
                                                         Remedial

        DSU (2) (4)                                      Next Business day, On-site     * /site visit
                                                         Remedial

        Cascade (5)                                      7x24 with 4 hour response,     * /switch/year
        B-STDX 9000                                      on-site remedial

        Visual Networks DSU ASE-BDE                      Next Business day, On-site     * /ea/month
                                                         Swap-out

        Visual Networks DSU ASE-EDE                      Next Business day, On-site    List
                                                         Swap-out
</TABLE>

NOTES:

1.)      Prices are only valid when all  routers  purchased  are  maintained  by
         Sprint.

2.)      Bridge is  responsible  for all  repairs  and  return  charges  of this
         equipment.

3.)      Subject  to site  verification.  (Site  must be  within 50 miles of the
         service depot.)

4.)      Bridge is  responsible  for providing  required  spares,  which will be
         stocked at the Sprint repair depot. If Bridge requires on-site remedial
         maintenance  outside normal business  hours,  the following rates shall
         apply:  * per  site  visit  for  two  (2)  hour  minimum  charge.  Each
         additional 1/4 hour shall be *.

5.)      Bridge may purchase maintenance directly from Cascade.

6.)      Pair equals Netblazer and modem.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-4                                6/26/96


<PAGE>

IV.      MANAGEMENT (1)

<TABLE>
<CAPTION>
         Equipment                                                              Unit Price
         ---------                                                              ----------
<S>                                                                             <C>
         Router (1) (5)                                                          * /mo
         Transport Back-up Management (2) (3)                                    * /mo
         LAN Server Management (4)                                               * /mo
</TABLE>

NOTES:

1.)      Bridge is not  required to purchase  management  under this  Agreement.
         This pricing is  available as an option in the event Bridge  chooses to
         have Sprint manage their network.

2.)      Includes Telebit NetBlazer and Microcom modems or Teleblazer modems.

3.)      Valid only when the Telebit  NetBlazer and Microcom modem or Teleblazer
         modems are co-located with the router.

4.)      Pricing is valid only if Sprint provides  router and Transport  Back-up
         Management.

5.)      One annual  software  upgrade  is  included  in the  price;  additional
         software downloads after the first is * each per router.

         SOFTWARE RELEASE POLICY

         The latest Sprint  certified  software release is used for a new router
         network installation.

         Sprint reserves the right to upgrade Bridge software  revision level if
         the installed  revision  level is no longer  supported by Sprint.  This
         up-grade will be at no charge to Bridge.

         Sprint  reserves  the right to  up-grade  a  router's  software  to fix
         software  bugs in the existing  version.  This  up-grade  will be at no
         charge to Bridge.

         When adding new routers to an existing  network,  Sprint  reserves  the
         right to  install  the same  version  of the  software  running  on the
         existing network on the new routers.

         Sprint  support for software  revision  levels is  consistent  with the
         vendor's support for software revision levels.

         The one free  annual  software  up-grade  is for a major  release not a
         maintenance release.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-5                                6/26/96


<PAGE>

         If the software  up-grade  requires  additional  hardware or a hardware
         up-grade, equipment and installation charges will apply.

         If Sprint  performs a software  up-grade in order to meet the  contract
         performance  criteria,  Bridge  will  not be  required  to pay  for the
         software upgrade.

         Sprint will provide adequate notice of any upcoming software upgrades.

V.       CO-LOCATION FEES

         A.       Cascade                                       * /rack/mo
                  Install                                       * /rack
         B.       Distribution router & Netblazer               * /rack/mo
                  Install                                       * /rack

VI.      FRAME RELAY

         A.       ACCESS

                  OPTION 1 (1)

<TABLE>
<CAPTION>
                                                          Install                        Monthly Recurring
                                                          -------                        -----------------
<S>                                            <C>                                <C>
                 56 Kbps, T-1                  Waived for TCG Type 1 & 2          * discount off Sprint Tariff
                                               facilities                         8 rates

                                                                                  See Note 2
</TABLE>

                  1.)      If TCG is the access  provider for the SIA  contract,
                           Bridge  may  take   advantage  of  the  SIA  pricing.
                           However,   Bridge  may  use  pricing  from  only  one
                           contract,  i.e. either this contract or the SIA Local
                           Access Services contract. If SIA pricing is selected,
                           non-SIA  sites  will be  charged  at  current  Sprint
                           Tariff 8 rates.  Tariff 8 installation  charges apply
                           to non-SIA sites.

                  2.)      All  monthly  recurring  charges  for ACF and COC are
                           waived.

                  OPTION 2

                  Sprint Coordinated Vendor Billed Access (SCVBA) (1)

<TABLE>
<CAPTION>
                                                   Non - Reucrring               Monthly Recurring
                                                       56 Kbps                        56 KBPS
                                                       -------                        -------
<S>                                                     <C>                            <C>
                          ACF (2)                        *                              *
                          EFC (3)                        *                              *
                          COC (4)                        *                              *
</TABLE>


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-6                                6/26/96


<PAGE>

                  1.)      Bridge  may  select  this  option for Access in which
                           Sprint  acts as  Bridge's  agent and orders and tests
                           the  service,  but the access  provider  bills Bridge
                           directly.

                  2.)      Access Coordination Fee

                  3.)      Entrance  Facility  Charge  (Pass  through  from  the
                           Access provider)

                  4.)      Central Office Connection

                  HOST ACCESS  (St. Louis)

                  DS3                                             * /ea/month

         B.       ACCESS CHANNELS

         INGRESS T-1 DISTRIBUTION PORT (1)(2)(3)(4)(5)(6)         * /EA/MO

NOTES:

1.)      Connects the router to the TP Frame Relay Switch

2.)      56K ports are defined as having 32 Kbps distribution router capacity.

3.)      128  Kbps  ports  are  defined  as  having  128 Kbps of  capacity  or 4
         equivalent 32 Kbps users.

4.)      Each T-1 distribution  ingress port supports a maximum of 48 equivalent
         32 Kbps users.

5.)      Once 48 equivalent 32 Kbps users are assigned to a distribution ingress
         T-1 port, customer must order an additional T-1 port.

6.)      Distribution   site  T-1  Ports:   (The   following   is  the   minimum
         configuration during the contract Term)

<TABLE>
<S>                                 <C>                                                 <C>
         New York                   distribution ingress T-1 ports                      Four (4)
         Los Angeles                distribution ingress T-1 ports                      Two (2)
         Chicago                    distribution ingress T-1 ports                      Two (2)
         San Francisco              distribution ingress T-1 ports                      Two (2)
         Boston                     distribution ingress T-1 ports                      Two (2)
         Kansas City                distribution ingress T-1 ports                      Two (2)
</TABLE>

         INGRESS T-1 NETWORK PORT (1)(2)                             */EA/MO

NOTES:


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-7                                6/26/96


<PAGE>

1.)      For  each  distribution  site  one T1 -  distribution  port and one T-1
         network port are required.

         HOST PORTS (1)(2)(3)                                    * /EA/MO

NOTES:

1.)      Egress TP port at Bridge hosts

2.)      Each host port must have a back-up T-1 port i.e. Data 1 and Data 2.

3.)      Back-up T-1 port price is */ea/mo.

PORTS AND PVCS (1)

         56KBPS Port and two (2) ZERO CIR PVC into the
         distribution router (1)(2)(3)                           * /EA/MO

NOTES:

1.)      Price is only valid in the user is connected to a distribution site.

2.)      Excludes access.

3.)      Remote  domestic  US  ports  which  connect  to  distribution   routers
         (excludes access)

<TABLE>
<CAPTION>
         Ports                            Monthly Price                    Equivalent 32 Kbps Users
         -----                            -------------                    ------------------------
<S>                                   <C>                                           <C>
         56 Kbps                         * /ea/mo                                     1
         128 Kbps                        * /ea/mo                                     4
         192 Kbps                        * /ea/mo                                     6
         256 Kbps                        * /ea/mo                                     8
         320 Kbps                        * /ea/mo                                    10
         384 Kbps                        * /ea/mo                                    12
         448 Kbps                        * /ea/mo                                    14
         512 Kbps                        * /ea/mo                                    16
         576 Kbps                        * /ea/mo                                    18
         640 Kbps                        * /ea/mo                                    20
         704 Kbps                        * /ea/mo                                    22
         768 Kbps                        * /ea/mo                                    24
         896 Kbps                        * /ea/mo                                    28
         1024 Kbps                       * /ea/mo                                    32
         1280 Kbps                       * /ea/mo                                    40
         1536 Kbps                       * /ea/mo                                    48
</TABLE>

         C.       PVC


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-8                                6/26/96


<PAGE>

                  Backbone Zero CIR PVC                           * /ea/mo

         D.       INSTALL

                  PVC                                             * /each

                  Access Channel                                  * /each

VII.     DIAL BACK-UP

         A.       DISTRIBUTION SITE DIAL BACK-UP SERVICE (1)

                  Each of the distribution sites will offer Dial Back-Up Service
                  via Sprint's  Switched Clarity 800 service.  Customers needing
                  dial  back-up  outside a local  calling area will dial the 800
                  number.

                  Charge:  * service  fee per month plus  Tariff rate per minute
                  cost.

<TABLE>
<CAPTION>
                                                   TARIFF RATE PER MINUTE

                  -------------------------------------------- -----------------------------------------
                                   Regional                                    National
                  -------------------------------------------- -----------------------------------------
                           Peak                Off Peak               Peak               Off Peak
                  ----------------------- -------------------- -------------------- --------------------
<S>                                              <C>                  <C>                  <C>
                           *                     *                    *                    *
                  ----------------------- -------------------- -------------------- --------------------
</TABLE>


                  1.)      Bridge is responsible for providing the business line
                           for each distribution site and all charges associated
                           with the business line.

VIII.    SPRINTNET SERVICES  (DOMESTIC X.25)

         A.       Product Discount
                     * off of list price
         B.       Install Wavier (1)
                     * for a three year order term
         C.       See Hub Pricing - Page B-30

         NOTES:

1.)      Customer is liable for a pro-ratA  amount of any waived  install if the
         site is  disconnected  prior  to  being  installed  for 36  consecutive
         months.

IX.      DISTRIBUTION SITE EQUIPMENT PURCHASE

         Distribution site equipment (1)(2)                         *

         NOTES:


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-9                                6/26/96


<PAGE>

1.)      See List of Equipment  and  quantities  in each  existing  distribution
         site, page B-31.

2.)      Equipment is located at  distribution  sites in New York, NY;  Chicago,
         IL; Boston,  MA; San  Francisco,  CA; Kansas City, MO; and Los Angeles,
         CA.

X.       ATM SERVICES

         A.       Local Access  Facilities - Customer shall be  responsible  for
                  arranging and providing all Local Access  Facilities  required
                  to utilize the ATM Products and Services. For T-3 Local Access
                  Facilities, the COC and ACF charges are as follows:

<TABLE>
<CAPTION>
                                    Non-Recurring Charge                   Monthly Recurring Charge
                                    --------------------                   ------------------------
<S>                                 <C>                                               <C>
                  COC                 * each                                         * each
                  ACF                 * each                                         * each
</TABLE>

         B.       Port Connection Charges

<TABLE>
<CAPTION>
                  Port              Installation Charge                    Monthly Recurring Charge
                  ----              -------------------                    ------------------------
<S>                                 <C>                                    <C>
                  T-1 Port:          * each                                  * each per Month
                  T-3 Port:          * each                                  * each per Month
</TABLE>

                  Sprint  shall  apply  the  following  discounts  to  the  Port
                  Connection charges specified above.

<TABLE>
<CAPTION>
                  Contract Year             Discount
                  -------------             --------
<S>                                           <C>
                  Year 1                      20%
                  Year 2                      10%
                  Year 3                      10%
</TABLE>

         C.       PVC Charges

                  1.       The monthly recurring charges for use of one-way PVCs
                           are as follows:

                           (a)      CBR PVCs

<TABLE>
<CAPTION>
                  Information Rate          Flat Rate Price               Usage-Based Price
                  ----------------          ---------------               -----------------
<S>                                         <C>                           <C>
                  64 Kbps                    * per 64 Kbps                 * per 64 Kbps plus usage
                  1 Mbps                     * per 1 Mbps                  * per 1 Mbps plus usage
</TABLE>

                  For the Usage-Based  Price, the usage component of the CBR PVC
                  price is * per 1 Megacell of  delivered  CBR Traffic per month
                  based on the egress counts.

                           (b)      VBR PVCs


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-10                               6/26/96


<PAGE>

<TABLE>
<CAPTION>
                  Information Rate          Flat Rate Price               Usage-Based Price
                  ----------------          ---------------               -----------------
<S>                                         <C>                           <C>
                  64 Kbps                    * per 64 Kbps                 * per 64 Kbps plus usage
                  1 Mbps                     * per 1 Mbps                  * per 1 Mbps plus usage
</TABLE>

                  For the Usage-Based  Price, the usage component of the VBR PVC
                  price  is * per 1  Megacell  of  delivered   VBR  Traffic  per
                  month  based on the egress  counts,   not  to  exceed  * per 1
                  Mbps PVC per month.

                  2.       Flat Rate Price  Discounts  - Sprint  shall apply the
                           following discounts to the Flat Rate price for use of
                           a  VBR   and   CBR  PVC   based   on  the   following
                           corresponding gross monthly PVC charges per Port:

<TABLE>
<CAPTION>
                           Gross Monthly                            VBR PVC               CBR PVC
                           PVC Charges per Port                    Discount              Discount
                           --------------------                    --------              --------
<S>                                                                  <C>                   <C>
                           $2,000 - $3,999                             *                    *
                           $4,000 - $6,399                             *                    *
                           $6,400 - $8,999                             *                    *
                           $9,000 - $14,400                            *                    *
                           Over $14,400                                *                    *
</TABLE>

                  3.       VBR PVC Cap - The total VBR PVC  charge  per port per
                           month shall not exceed the following amounts based on
                           the Port Speed:

<TABLE>
<CAPTION>
                           Port Speed                Total Monthly Charge
                           ----------                --------------------
<S>                                                  <C>
                           T-1                        * per Port
                           T-3                        * per port
</TABLE>

                  4.       The PVC Establishment Charge is $35 per site.

         SPECIAL ATM TERMS

         A.       Wavier  of  Installation  Charges  - Sprint   shall   waive  *
                  of the ATM   installation  charges  (Port Connection  and  PVC
                  Establishment  only) for  each  site  which is installed for a
                  minimum    period   of   thirty-six  (36)  consecutive months.
                  If the ATM Service  is disconnected  prior to thirty-six  (36)
                  consecutive  months   of  Service,  then  Customer  shall  pay
                  Sprint a pro-rata amount of the waived installation charges.

         B.       Change or Upgrade of Service - Customer  may  upgrade  the ATM
                  Service  at a site or  change  an ATM site  without  liability
                  except for the  pro-rata  payment  of any waived  installation
                  charges  if  such  ATM  Service  was  disconnected   prior  to
                  twenty-four continuous months of Service.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-11                               6/26/96


<PAGE>


                                 GLOBAL PRICING

I.       FRAME RELAY

A.       FRAME RELAY (ONE TO ONE)
         CREVE COEUR TO LONDON

<TABLE>
<CAPTION>
                                                       Access            MRC        Port/IPVC          ALC
Speed         Port       IPVC         ALC        T-1   Channel(4)        Total      Install(1)(3)      Install(2)
- -----         ----       ----         ---        ---   ----------        -----      -------------      ----------
<S>          <C>         <C>          <C>        <C>        <C>           <C>            <C>            <C>
128K            *          *           *          *        *               *              *              *
258K            *          *           *          *        *               *              *              *
512K            *          *           *          *        *               *              *              *
768K            *          *           *          *        *               *              *              *
T-1             *          *           *          *        *               *              *              *
</TABLE>

B.       FRAME RELAY (ONE-TO-ONE)
         MANCHESTER TO WATFORD

<TABLE>
<CAPTION>
                                                       Access            MRC        Port/IPVC          ALC
Speed         Port       IPVC         ALC        T-1   Channel(4)        Total      Install(1)(3)      Install(2)
- -----         ----       ----         ---        ---   ----------        -----      -------------      ----------
<S>          <C>         <C>          <C>        <C>        <C>           <C>            <C>            <C>
128K            *          *           *          *        *               *              *              *
258K            *          *           *          *        *               *              *              *
512K            *          *           *          *        *               *              *              *
768K            *          *           *          *        *               *              *              *
T-1             *          *           *          *        *               *              *              *
</TABLE>

Notes:

1.)      * waiver of the * Global Port  Install  charge if the order term is two
         years or longer (Each site must be installed for 24 continuous months).

2.)      Bridge must pay ALC charges for install.

3.)      Bridge is liable  for a pro-rata  amount of any  waived  install if the
         site is disconnected.

4.)      A Global  Frame  Relay  Connectivity  Fee is  applied  to  Frame  Relay
         customers  if  the  host  port  is in the US  and  there  are  multiple
         international   locations.   See  below  for  an   explanation  of  the
         Connectivity fee.

C.       FRAME RELAY CONNECTIVITY FEES

         The Global  Frame  Relay  Connectivity  Fee is based on either the port
         speed of the US Port or the Global Port as follows:


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-12                               6/26/96


<PAGE>

                  a.)      The US Port Speed determined the "Base" port speed of
                           the  Global  Connectivity  Fee if it is lower than or
                           equal to the port speed of the  Global  Port to which
                           it is connected.

                  b.)      The Global Port speed  determines the "base" port for
                           the  calculation if it is greater than the US port to
                           which it is connected.  If multiple  Global Ports are
                           connected  to the  same US  port,  then  the  highest
                           Global  Port speed  determines  the  "base"  port for
                           calculation purposes.

         FRAME RELAY CONNECTIVITY FEES (1)

<TABLE>
<CAPTION>
                  US Port                        Global Port                      Connectivity
                  (Kbps)                         (Kbps)                                Fee
                  ------                         ------                                ---
<S>                                              <C>                                  <C>
                  56/64                          56/64                                  *
                  56/64                          128                                    *
                  56/64                          256                                    *
                  128                            56/64                                  *
                  128                            128                                    *
                  128                            256                                    *
                  256                            56/64                                  *
                  256                            128                                    *
                  256                            256                                    *
</TABLE>

                  1.)      For  calculation  purposes,  the Global  Frame  Relay
                           Connectivity  Fee is the  List  Price  of the  Global
                           "base"  port  less  the List  Price  of the  domestic
                           "base" port.

II.      CUSTOM LINK  (X.25 SERVICE)

                  A.       See Site Pricing, pp. B33 - B37

                  B.       Install Wavier (1)
                                * for a three year order term

NOTE:  (1)

1.)      Customer is liable for a pro-rata  amount of any waived  install if the
         site is disconnected prior to being installed for 36 continuous months.

III.     PRICING FOR CANADA

A.       EQUIPMENT INSTALLATION

         * PER SITE  (1)(2)(3)(4)(5)(6)


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-13                               6/26/96


<PAGE>

1)       Sprint International will install the following equipment:

         a.       Wellfleet AN running 8.0.1 software
         b.       Telebit Netblazer Dial Back Up Router Model PN-2
         c.       Microcom Modem Model Deskport 28.8ES
         d.       Cabinet to hold equipment
         e.       Dell OS/2 Server
         f.       UPS Unit
         g.       Monitor and Keyboard
         h.       AB Switch Box
         i.       Associated cabling

2)       The  equipment  will be staged and  configured in the US and shipped to
         the Bridge customer locations by either Sprint or Bridge. If shipped by
         Sprint, shipping charges are as specified in Section V herein.

3)       The install is limited to install, power up, and connect cables.

4)       Sprint reserves the right to use a third party for installation.

5)       An  engineering  diagram must be provided to the  installing  agent for
         proper cabling of the CPE.

6)       Sprint will provide  installation of Bridge  equipment in the following
         cities:

                  a)       Edmonton, Alberta
                  b)       Toronto, Ontario
                  c)       Vancouver, British Columbia
                  d)       Victoria, British Columbia
                  e)       Montreal
                  f)       Quebec

B.       EQUIPMENT MAINTENANCE/MANAGEMENT  (5)(6)

<TABLE>
<S>                                                       <C>
Access Node and Modem (1)                                 * PER LOCATION/PER MONTH
Netblazer (2)                                             * PER LOCATION/PER MONTH
Optional Maintenance (3)(4)                               * PER HOUR
   24 X 7, with minimum 3 hours
</TABLE>

1)       Maintenance service is based on 8X5 with 8 hour response.

2)       This  charge is in  addition  to the  standard  * per month  charge per
         location.

3)       This per hour  charge is in  addition  to the  standard * per month per
         location charge.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-14                               6/26/96


<PAGE>

4)       24 X 7 coverage is subject to availability.

5)       Spares will be stocked in Etobicoke, ON (Toronto), and Vancouver, BC.

6)       Sprint reserves the right to use a third party for maintenance.

C.       MONTHLY RECURRING GLOBAL FRAME RELAY CHARGES

1.       Canada Ports (Excludes local access charges)

<TABLE>
<CAPTION>
         Speed                      Unit Price
         -----                      ----------
<S>                                 <C>
         56/64                      * each per month
         128                        * each per month
         256                        * each per month
</TABLE>

2.       IPVC Charges between the US and Canada

<TABLE>
<CAPTION>
         CIR                        Unit Price
         ---                        ----------
<S>                                 <C>
         Zero                       * each per month
         9.6                        * each per month
         14.4                       * each per month
         19.2                       * each per month
         38.4                       * each per month
         48.0                       * each per month
         56/64                      * each per month
         128                        * each per month
         192                        * each per month
         256                        * each per month
</TABLE>

D.       FRAME RELAY INSTALLATION

         Port and IPVC installation charge: * each

         Installation Waiver:

<TABLE>
<CAPTION>
                           Order Term                Discount
                           ----------                --------
<S>                                                  <C>
                           2 years                   * (1)(2)(3)(5)
                           3 years                   * (2)(3)(4)(5)
</TABLE>

         1)       Site must be installed for 24 continuous months.
         2)       Install waiver does not include ALCs.
         3)       Install waiver is for GFRS ports in Canada.
         4)       Site must be installed for 36 continuous months.
         5)       Bridge is liable for a pro-rata  amount of the waived  install
                  if the site is

* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-15                               6/26/96


<PAGE>

         terminated  prior to the end of the order term,  per the  conditions of
         this contract.

E.       SHIPPING CHARGES

         Shipping Fee:  *
         (Wellfleet AN Router, Telebit Netblazer, Microcom Modem)

F.       DIAL BACK UP (OPTIONAL)

         Customer is  responsible  for the business line charges to the customer
         and distribution sites.

VII.     TERM COMMITMENT

         The minimum order term for a Canadian site in one year.

G.       TERMINATION LIABILITY FOR CANADIAN ORDERS

         Access:  If a site  is  terminated  prior  to  being  installed  for 12
         continuous months,  Customer shall be liable for fifty percent (50%) of
         the monthly price for access for each month  remaining in the unexpired
         portion of the one year order term.

         Sprint Charges:  There is a * charge per site for each order terminated
         prior to expiration of the order term.  This charge shall be waived for
         Bridge.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-16                               6/26/96


<PAGE>


                              MISCELLANEOUS CHARGES

I.       CANCEL BEFORE START CHARGES

1.)      General

Cancel  Before Start  charges  apply to all orders for new circuits or hardware.
Table changes, IDs and orders for software modifications are excluded.

2.)      Charges

         a.       * per voice  grade/analog  circuit  (speeds of 19.2 and below)
                  (e.g.,  if 3 circuits are ordered and all 3 are canceled,  the
                  charge is *)

         b.       * per DDS/DSO circuit (56/64 Kbps)

         c.       * per DS1 or Fractional DS1 circuit

         d.       If  equipment  is  shipped  to  the  customer  site  prior  to
                  cancellation,   Sprint's  then  current  handling  charge  are
                  applicable.  A separate handling charge will apply to both the
                  shipment  to the  customer  site and from the  customer  site.
                  (Refer to Sprint's Handling Charge Policy.)

3.)      Cancel without Charges

An order for new services may be canceled without incurring the *, * or * charge
specified  above within 10 business days of the date shown on the Order for Data
Communications Service.  Customers who wish to terminate their order must send a
written cancellation  request to Contracts  Administration to be received within
the prescribed time limit (10 business days) or the charge will be automatically
applied.

4.)      Other

In the event of technical problems or other mitigating circumstances, the cancel
before start charge may be waived.  However,  Contracts  Administration  and the
Sprint Sales  Representative must be notified in writing for these charges to be
waived.

II.      HANDLING CHARGES

1.)      General

         Sprint will provide shipment from its designated  shipping point(s) via
         the Sprint carrier of choice,  subject to the following  charges listed
         below.  These charges do not include  insurance  coverage for purchased
         equipment;

* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-17                               6/26/96


<PAGE>

         customers are responsible for insurance from Sprint shipping  point(s).
         The  charges  apply  to  both  rental   (sprint-owned)   and  purchased
         (customer-owned  at shipping  point)  equipment.  These  charges do not
         apply to  equipment  provided  by  Sprint  as part of a Sprint  service
         offering (e.g.,  modems supplied in conjunction  with dedicated  access
         facilities).

2.)      Charges

<TABLE>
<CAPTION>
                                                                             Price Per Unit Shipped
                                                                             ----------------------
<S>                                                                                  <C>
                  Modems, standalone (a)                                              *
                  Modems, rach mount (a)                                              *
</TABLE>

                  a)       Does not apply to Dedicated Access Facility  Service,
                           including Multidrop Plus.

3.)      Exceptions

         If an expedited or overnight  shipment is requested,  the above charges
         do not apply. The charges for an  expedited/overnight  shipment is 100%
         of the cost incurred by Sprint for providing this service.



* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-18                               6/26/96

<PAGE>


                              DOMESTIC LIST PRICES

I.       FRAME RELAY

         A.       ACCESS

<TABLE>
<CAPTION>
                  Speed                              Install                        Monthly Recurring
                  -----                              -------                        -----------------
<S>                                                  <C>                            <C>
                  56 Kbps, T-1, DS3                  Current Sprint                 Current Sprint
                                                     Tariff 8                       Tariff 8
                                                     Plus ACF & COC                 Plus ACF & COC
</TABLE>

         B.       ACCESS CHANNEL

<TABLE>
<CAPTION>
                                                                                 Unit Rate
                        Access Channel Speed                                     Per Month
                        --------------------                                     ---------
<S>                                                                                 <C>
                                  56/64                                              *
                                112/128                                              *
                                168/192                                              *
                                224/256                                              *
                                280/320                                              *
                                336/384                                              *
                                392/448                                              *
                                448/512                                              *
                                504/576                                              *
                                560/640                                              *
                                616/704                                              *
                                672/768                                              *
                                784/896                                              *
                               896/1024                                              *
                              1120/1280                                              *
                                     T1                                              *
</TABLE>

         C.       PVC RATES

<TABLE>
<CAPTION>
                                 PVC                                             Unit Rate
                          Minimum Data Rate                                      Per Month
                          -----------------                                      ---------
<S>                                                                                 <C>
                          Burst Express                                              *
                                   19.2                                              *
                                   38.4                                              *
                                  56/64                                              *
                                    128                                              *
                                    192                                              *
                                    256                                              *
                                    320                                              *
</TABLE>

* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-19                               6/26/96


<PAGE>

<TABLE>
<S>                                                                                <C>
                                    384                                             *
                                    448                                             *
                                    512                                             *
                                    576                                             *
                                    640                                             *
                                    704                                             *
                                    768                                             *
                                    832                                             *
                                    896                                             *
                                    960                                             *
                                   1024                                             *
</TABLE>

II.      SPRINTNET SERVICES

The pricing components for Customer Link Series include the following:

         o        Recurring charges

                  -        Access  line  charge per  dedicated  access  facility
                           (DAF).
                  -        Network port charge per DAF.
                  -        Flat monthly usage charge.

         o        Non-recurring charges

                  Installation charge per DAF.

ONE-to-ONE Configurations

Unlike static  leased  lines,  each  ONE-to-ONE  site can take  advantage of the
global reach of SprintNet,  with  bidirectional  access to or from all SprintNet
locations  as well as  networks  in more  than  100  countries.  For  access  to
locations  other than the  specified  point-to-point  location,  standard  rates
apply.

Customers  may  contract  for more than a single  ONE-to-ONE  connection  at any
location.   ONE-to-ONE   is  primarily   available  to  customers   who  require
connectivity either between two non U.S. locations, or a U.S. location and a non
U.S.  location.  Customers  who  require  ONE-to-ONE  connectivity  between  two
locations within the U.S. only, must submit a special pricing request.

The flat monthly rate depends upon:

         o        Service level (national, regional or global).

         o        Connection speed (9.6 kbps - 256 kbps; varies by country).

         o        Location.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-20                               6/26/96


<PAGE>

ALL-to-ALL Configurations

Global ports can do the following without incurring  additional traffic charges,
assuming a customer-specific network configuration:

         o        Initiate  calls with any other  defined  global,  regional  or
                  national ALL-to-ALL port.

         o        Initiate calls to an All-to-ONE hub port belonging to the same
                  customer.

ALL-to-ALL  permits customers to combine service levels. A large user can create
regional and global networks.  Whether a traffic charge is incurred depends upon
the call initiator's port classification and the geographic  boundaries the call
crosses.

<TABLE>
<CAPTION>
                                                   GDC

SPEED                    INSTALL                          MONTHLY                   PROMOTIONAL
<S>                      <C>                              <C>                           <C>
4.8                       *                                 *                             *
9.6                       *                                 *                             *
19.2                      *                                 *                             *
56 kb                     * + telco + CPE                   * + telco + CPE
112/128 kbps              * + telco + CPE                   * + telco + CPE
224/256 kbps              * + telco + CPE                   * + telco + CPE

<CAPTION>
                                               GDC - PITAP

SPEED                    INSTALL                          MONTHLY
<C>                      <C>                              <C>
9.6 analog                 *                                *
9.6 digital                *                                * cs
19.2 analog                *                                *
56 kb                      *                                *
112/128 kb                 *                                *
224/256 kb                 *                                *

<CAPTION>
                                       CUSTOMLINK (DOMESTIC X.25)

SPEED                    INSTALL                          MONTHLY
<C>                      <C>                              <C>
9.6                       *                                *
19.2                      *                                *
56 kb                     *                                * + telco + CPE
112/128 kb                *                                * + telco + CPE
224/256 kb                *                                * + telco + CPE
</TABLE>

All prices shown above are for 90-day rates.


* CONFIDENTIAL TREATMENT REQUESTED
- --------------------------------------------------------------------------------
Bridge                                B-21                               6/26/96


<PAGE>


<TABLE>
<CAPTION>
                                                 GLOBAL LIST PRICES

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

                                       Global Frame Relay and Global SprintNet
                                                Zone Pricing Matrix

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

                              All Countries have Global SprintNet AND Global Frame Relay
                                       services unless otherwise noted

- ------------------- -------------------- -------------------- ----------------- -------------------- ----------------
REGION              ZONE 1               ZONE 2               ZONE 3            ZONE 4               ZONE 5
- ------------------- -------------------- -------------------- ----------------- -------------------- ----------------
<S>                 <C>                  <C>                  <C>               <C>                  <C>
North America       Contiguous US        Alaska               Puerto Rico       Canada
                    (CONUS)              Hawaii               Mexico*
- ------------------- -------------------- -------------------- ----------------- -------------------- ----------------
Europe              UK (England and      Austria              Bulgaria*         Russia (CIS)*        Denmark*
                    Scotland)            Belgium              Hungary*          Latvia (CIS)*        Norway
                                         France               Greece*           Ukrain (CIS)*        Sweden*
                                         Germany                                Uzbekistan           Finland
                                         Ireland                                (CIS)*               Lithuania*
                                         Italy                                  Kazakhstan
                                         Luxembourg                             (CIS)*
                                         Netherlands                            Extonia (CIS)*
                                         Portugal*                              Romania*
                                         Spain                                  Armenia*
                                         Switzerland
- ------------------- -------------------- -------------------- ----------------- -------------------- ----------------
Asia Pacific        Japan                Australia                              Taiwan*              Guam*
                                         New Zealand                            Singapore*
                                         Hong Kong                              Indonesia*
                                         Korea
                                         Phillipines*
                                         Malaysia
- ------------------- -------------------- -------------------- ----------------- -------------------- ----------------
Mid-East Africa,    Israel*              Nigeria*             Kuwait*
Ctr. Asia
- ------------------- -------------------- -------------------- ----------------- -------------------- ----------------
Latin America &                          Venezuela*
Carrib.                                  Peru*
                                         Columbia*
- ------------------- -------------------- -------------------- ----------------- -------------------- ----------------
</TABLE>
All  Countries  have Global  SprintNet  AND Global Frame Relay  services  unless
otherwise noted


- --------------------------------------------------------------------------------
Bridge                                B-22                               6/26/96


<PAGE>


<TABLE>
<CAPTION>
                                    Custom Link Series - All-to-One Spoke Pricing

                                                  Line Speed 9.6 Kbps

                              PLEASE SEE COUNTRY PRICING MATRIX FOR CURRENT COUNTRY ZONES.

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

                            Monthly Charge = ALC + Flat Rate Usage (Port Charges are included)

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

                                   9.6 Kbps Spoke Pricing for Spokes in all locations**

- -------------------- ----------------------------------------------- ----------------------------------------------
Region/                              North America                                      Europe
Zone                    1        2        3         4         5        1        2         3        4         5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
<S>                     <C>     <C>      <C>       <C>       <C>       <C>     <C>       <C>      <C>       <C>
                  1              700      950       550                1000    1200      1400     2000      1200
            North 2     700      700     1100       650                1300    1400      1600     2100      1400
            Amer. 3     950     1100      700                          1400    1500      1700     2300      1500
                  4     550      650                550                1000    1200      1400     2000      1200
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1000     1300     1400      1000                         850      1050     1400       850
                  2    1200     1400     1500      1200                 850     850      1050     1400       850
           Europe 3    1400     1600     1700      1400                1050    1050      1050     1400      1050
                  4    2000     2100     2300      2000                1400    1400      1400     1400      1400
                  5    1200     1400     1500      1200                 850     850      1050     1400       850
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1300     1500     1700      1300                1400    1400      1700     2300      1400
             Asia 2    1500     1700     1900      1500                1600    1600      1900     2300      1600
          Pacific 3
                  4    1800     2000     2200      1800                1900    1900      2200     2300      1900
                  5    1300     1500     1600      1300                1900    1900      2200     2300      1900
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1700     1900     2100      1700                2000    2000      2200     2400      2000
          MidEast 2    3000     3200     3400      3000                2100    2200      2500     3000      2200
           Africa 3    2400     2500     2600      2400                2500    2600      2700     3300      2600
             Asia 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1
           L Amer 2    1300     1400     1500      1300                1400    1500      1800     2400      1500
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
</TABLE>


- --------------------------------------------------------------------------------
Bridge                                B-23                               6/26/96



<PAGE>

<TABLE>
<CAPTION>
- -------------------- ----------------------------------------------- ----------------------------------------------
Region/                               Asia/Pacific                               Mid East/Africa/Asia
Zone                    1        2        3         4         5        1        2         3        4         5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
<S>                    <C>      <C>      <C>       <C>      <C>        <C>     <C>       <C>      <C>       <C>
                  1    1300     1500               1800     1300       1700    3000      2400
            North 2    1500     1700               2000     1500       1900    3200      2500
            Amer. 3    1700     1900               2200     1600       2100    3400      2600
                  4    1300     1500               1800     1300       1700    3000      2400
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1400     1600               1900     1900       2000    2100      2500
                  2    1400     1600               1900     1900       2000    2200      2600
           Europe 3    1700     1900               2200     2200       2200    2500      2700
                  4    2300     2300               2300     2300       2400    3000      3300
                  5    1400     1600               1900     1900       2000    2200      2600
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1             1700               1900     1900       1900    3500      2500
             Asia 2    1700      900               2000     2000       2000    3700      2600
          Pacific 3
                  4    1900     2000               2200     2200       2400    3700      2600
                  5    1900     2000               2200                2400    3600      2600
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1900     2000               2400     2400               1500      1900
          MidEast 2    3500     3700               3700     3600       1500              1500
           Africa 3    2500     2600               2600     2600       1900    1500       700
             Asia 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1
           L Amer 2    1500     1500               1700     1700       2200    3200      2700
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
</TABLE>


- --------------------------------------------------------------------------------
Bridge                                B-24                               6/26/96



<PAGE>



<TABLE>
<CAPTION>
- -------------------- -----------------------------------------------
Region/                             L Amer & Caribb
Zone                    1        2        3         4         5
- -------------------- -------- -------- --------- -------- ----------
<S>                     <C>     <C>      <C>       <C>       <C>
                  1             1300
            North 2             1400
            Amer. 3             1500
                  4             1300
                  5
- -------------------- -------- -------- --------- -------- ----------
                  1             1400
                  2             1500
           Europe 3             1800
                  4             2400
                  5             1500
- -------------------- -------- -------- --------- -------- ----------
                  1             1500
             Asia 2             1500
          Pacific 3
                  4             1700
                  5             1700
- -------------------- -------- -------- --------- -------- ----------
                  1             2200
          MidEast 2             3200
           Africa 3             2700
             Asia 4
                  5
- -------------------- -------- -------- --------- -------- ----------
                  1
           L Amer 2              700
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ----------
</TABLE>

** Installation,  Access Line ChargeS (ALC) also apply.  Prices include Port and
   Traffic.

Matrix represents traffic between countries.


- --------------------------------------------------------------------------------
Bridge                                B-25                               6/26/96



<PAGE>


<TABLE>
<CAPTION>
                                Custom Link Series - All-to-One Spoke Pricing

                                              Line Speed 14.4 Kbps

                          PLEASE SEE COUNTRY PRICING MATRIX FOR CURRENT COUNTRY ZONES.

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

                                      Monthly Charge = ALC + Flat Rate Usage

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

                              14.4 Kbps Spoke Pricing for Spokes in all locations**

- -------------------- ----------------------------------------------- ----------------------------------------------
Region/                              North America                                      Europe
Zone                    1        2        3         4         5        1        2         3        4         5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
<S>                    <C>      <C>      <C>       <C>       <C>       <C>     <C>       <C>      <C>       <C>
                  1              900     1150                          1200    1400      1600     2300      1400
            North 2     900      900     1300                          1500    1600      1800     2400      1600
            Amer. 3    1150     1300      900                          1600    1700      1900     2700      1700
                  4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1200     1500     1600                           900    1050      1250     1700      1050
                  2    1400     1600     1700                          1050    1050      1250     1700      1050
           Europe 3    1600     1800     1900                          1250    1250      1250     1700      1250
                  4    2300     2400     2700                          1700    1700      1700     1700      1700
                  5    1400     1600     1700                          1050    1050      1250     1700      1050
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1500     1700     1900                          1600    1600      1900     2800      1600
             Asia 2    1700     1900     2100                          1800    1800      2100     2800      1800
          Pacific 3
                  4    2000     2200     2400                          2100    2100      2400     2800      2100
                  5    1500     1700     1800                          2100    2100      2400     2500      2100
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1900     2100     2300                          2200    2200      2400     2600      2200
          MidEast 2
           Africa 3    2600     2700     2800                          2700    2800      2900     3700      2800
             Asia 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1
           L Amer 2    1500     1600     1700                          1600    1700      2000     2600      1700
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
</TABLE>


- --------------------------------------------------------------------------------
Bridge                                B-26                               6/26/96



<PAGE>

<TABLE>
<CAPTION>
- -------------------- ----------------------------------------------- ----------------------------------------------
Region/                               Asia/Pacific                               Mid East/Africa/Asia
Zone                    1        2        3         4         5        1        2         3        4         5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
<S>                    <C>      <C>      <C>       <C>      <C>        <C>      <C>      <C>      <C>       <C>
                  1    1550     1700               2000     1500       1900              2600
            North 2    1700     1900               2200     1700       2100              2700
            Amer. 3    1900     2100               2400     1800       2300              2800
                  4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1600     1800               2100     2100       2200              2700
                  2    1600     1800               2100     2100       2200              2800
           Europe 3    1900     2100               2400     2400       2400              2900
                  4    2800     2800               2800     2500       2600              3700
                  5    1600     1800               2100     2100       2200              2800
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1     900     1900               2100     2100       2100              2700
             Asia 2    1900     1100               2200     2200       2200              2800
          Pacific 3
                  4    2100     2200               2400     2400       2600              2800
                  5    2100     2200               2400                2600              2800
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    2100     2200               2600     2600        900              2100
          MidEast 2
           Africa 3    2700     2800               2800     2800       2100               900
             Asia 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1
           L Amer 2    1700     1700               1900     1900       2400              2900
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
</TABLE>


- --------------------------------------------------------------------------------
Bridge                                B-27                               6/26/96



<PAGE>



<TABLE>
<CAPTION>
- -------------------- -----------------------------------------------
Region/                             L Amer & Caribb
Zone                    1        2        3         4         5
- -------------------- -------- -------- --------- -------- ----------
<S>                     <C>     <C>      <C>       <C>       <C>
                  1             1500
            North 2             1600
            Amer. 3             1700
                  4
                  5
- -------------------- -------- -------- --------- -------- ----------
                  1             1600
                  2             1700
           Europe 3             2000
                  4             2600
                  5             1700
- -------------------- -------- -------- --------- -------- ----------
                  1             1700
             Asia 2             1700
          Pacific 3
                  4             1900
                  5             1900
- -------------------- -------- -------- --------- -------- ----------
                  1             2400
          MidEast 2
           Africa 3             2900
             Asia 4
                  5
- -------------------- -------- -------- --------- -------- ----------
                  1
           L Amer 2              900
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ----------
</TABLE>

!!!! INTRA COUNTRY SPOKE RATES ARE * !!!!

** Installation, ALC charges also apply.  Prices include port and traffic.


- --------------------------------------------------------------------------------
Bridge                                B-28                               6/26/96



<PAGE>
<TABLE>
<CAPTION>
                                    Custom Link All-to-One Spoke Pricing

                                            Line Speed 19.2 Kbps

                        PLEASE SEE COUNTRY PRICING MATRIX FOR CURRENT COUNTRY ZONES.

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

                                Monthly Charge = ALC + Flat Rate Usage Charge

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

                         19.2 Kbps Spoke Pricing for Spokes in all destinations**

- -------------------- ------------------------------------ ----------------------------------------------
Region/                         North America                                Europe
Zone                    1        2        3         4        1        2        3         4        5
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
<S>                    <C>      <C>      <C>       <C>      <C>      <C>      <C>       <C>      <C>
                  1             1100     1350       700     1400     1600     1800      2500     1600
            North 2    1100     1100     1500       800     1700     1800     2000      2600     1800
            Amer. 3    1350     1500     1100               1800     1900     2100      2900     1900
                  4     700      800                700     1400     1600     1800      2500     1600
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1    1400     1700     1800      1400     1100     1250     1450      1900     1250
                  2    1600     1800     1900      1600     1250     1250     1450      1900     1250
           Europe 3    1800     2000     2100      1800     1450     1450     1450      1900     1450
                  4    2500     2600     2900      2500     1900     1900     1900      1900     1900
                  5    1600     1800     1900      1600     1250     1250     1450      1900     1250
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1    1700     1900     2100      1700     1800     1800     2100      3000     1800
             Asia 2    1900     2100     2300      1900     2000     2000     2300      3000     2000
          Pacific 3
                  4    2200     2400     2600      2200     2300     2300     2600      3000     2300
                  5    1700     1900     2000      1700     2300     2300     2600      2700     2300
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1    2100     2300     2500      2100     2400     2400     2600      2800     2400
          MidEast 2
           Africa 3    2800     2900     3000      2800     2900     3000     3100      3900     3000
          Central 4
             Asia 5
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1
           L Amer 2
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
</TABLE>


- --------------------------------------------------------------------------------
Bridge                                B-29                               6/26/96



<PAGE>



<TABLE>
<CAPTION>
- -------------------- ----------------------------------------------- ----------------------------------------------
Region/                               Asia/Pacific                             Mid East/Africa/Cent Asia
Zone                    1        2        3         4         5        1        2         3        4         5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
<S>                    <C>      <C>      <C>       <C>      <C>        <C>      <C>      <C>      <C>       <C>
                  1    1700     1900               2200     1700       2100              2800
            North 2    1900     2100               2400     1900       2300              2900
            Amer. 3    2100     2300               2600     2000       2500              3000
                  4    1700     1900               2200     1700       2100              2800
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1800     2000               2300     2300       2400              2900
                  2    1800     2000               2300     2300       2400              3000
           Europe 3    2100     2300               2600     2600       2600              3100
                  4    3000     3000               3000     2700       2800              3900
                  5    1800     2000               2300     2300       2400              3000
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1100     2100               2300     2300       2300              2900
             Asia 2    2100     1300               2400     2400       2400              3000
          Pacific 3
                  4    2300     2400               2600     2600       2800              3000
                  5    2300     2400               2600                2800              3000
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    2300     2400               2800     2800       1100              2300
          MidEast 2
           Africa 3    2900     3000               3000     3000       2300              1100
             Asia 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1
           L Amer 2
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
</TABLE>

!!!! INTRA COUNTRY SPOKE RATES ARE * except Canada is *!!!!
** Installation, ALC charges also apply.  Prices include port and traffic.
See Domestic Rate Schedule for all Intra-Country prices.


- --------------------------------------------------------------------------------
Bridge                                B-30                               6/26/96



<PAGE>
<TABLE>
<CAPTION>
                                    Custom Link All-to-One Spoke Pricing

                                             Line Speed 64 Kbps

                         PLEASE SEE COUNTRY PRICING MATRIX FOR CURRENT COUNTRY ZONES.

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

                                Monthly Charge = ALC + Flat Rate Usage Charge

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

                        64 Kbps Spoke Pricing for Spokes between all destinations**

- -------------------- ------------------------------------ ----------------------------------------------
Region/                         North America                                Europe
Zone                    1        2        3         4        1        2        3         4        5
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
<S>                    <C>      <C>      <C>       <C>      <C>      <C>      <C>       <C>      <C>
                  1             1500     1750       900     1800     2000     2200      2900     2000
            North 2    1500     1500     1900      1000     2100     2200     2400      3000     2200
            Amer. 3    1750     1900     1500               2200     2300     2500      3300     2300
                  4     900     1000                900     1800     2000     2200      2900     2000
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1    1800     2100     2200      1800     1500     1500     1850      2300     1500
                  2    2000     2200     2300      2000     1500     1500     1850      2300     1500
           Europe 3    2200     2400     2500      2200     1850     1850     1850      2300     1850
                  4    2900     3000     3300      2900     2300     2300     2300      2300     2300
                  5    2000     2200     2300      2000     1500     1500     1850      2300     1500
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1    2100     2300     2500      2100     2200     2200     2500      3400     2200
             Asia 2    2300     2500     2700      2300     2400     2400     2700      3400     2200
          Pacific 3
                  4    2600     2800     3000      2600     2700     2700     3000      3400     2700
                  5    2100     2300     2400      2100     2700     2700     3000      3100     2700
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1    2500     2700     2900      2500     2800     2800     3000      3200     2800
          MidEast 2
           Africa 3
          Central 4
             Asia 5
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
                  1
           L Amer 2
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- -------- -------- --------- -------- ---------
</TABLE>


- --------------------------------------------------------------------------------
Bridge                                B-31                               6/26/96



<PAGE>
<TABLE>
<CAPTION>
- -------------------- ----------------------------------------------- ----------------------------------------------
Region/                               Asia/Pacific                             Mid East/Africa/Cent Asia
Zone                    1        2        3         4         5        1        2         3        4         5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
<S>                    <C>      <C>      <C>       <C>      <C>        <C>      <C>       <C>      <C>       <C>
                  1    2100     2300               2600     2100       2500
            North 2    2300     2500               2800     2300       2700
            Amer. 3    2500     2700               3000     2400       2900
                  4    2100     2300               2600     2100       2500
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    2200     2400               2700     2700       2800
                  2    2200     2400               2700     2700       2800
           Europe 3    2500     2700               3000     3000       3000
                  4    3400     3400               3400     3100       3200
                  5    2200     2400               2700     2700       2800
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    1500     2500               2700     2700       2700
             Asia 2    2500     1700               2800     2800       2800
          Pacific 3
                  4    2700     2800               3000     3000       3200
                  5    2700     2800               3000                3200
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1    2700     2800               3200     3200
          MidEast 2
           Africa 3
          Central 4
             Asia 5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
                  1
           L Amer 2
                & 3
           Caribb 4
                  5
- -------------------- -------- -------- --------- -------- ---------- ------- --------- -------- --------- ---------
</TABLE>

!!!! INTRA COUNTRY SPOKE RATES ARE * except Canada is * !!!!
** Installation, ALC charges also apply.  Prices include port and traffic.
See Domestic Rate Schedule for all Intra-Country prices.


- --------------------------------------------------------------------------------
Bridge                                B-32                               6/26/96



<PAGE>
<TABLE>
<CAPTION>
                                                                                          Monthly Charges
One Time Total Charges
                                                            Charges
                                                                                                 SprintNet
Service                                 Installation
- -------------------- ------------------ ------------- --------------------- --------------------- -----------------------
                                                                                                  X.25 SERVICE
                                                                                                  -----------------------
                        Origination                       Destination       Access TP Port        Access
City                 Country            Dist co       City      Country     Speed     Protocol    Line        Traffic

- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
<S>                  <C>                <C>           <C>       <C>         <C>       <C>         <C>         <C>
Sidney               Australia          AAPR          St.       United      300       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Sidney               Australia          AAPR          St.       United      300       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Sidney               Australia          AFR           St.       United      1200      Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Sidney               Australia          AFR           St.       United      1200      Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Sidney               Australia          SFE           St.       United      2400      Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Sidney               Australia          SFE           St.       United      2400      Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Austria            VSE           St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Austria            VSE           St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Brussels             Belgium            BSE           St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Brussels             Belgium            BSE           St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     BARC          St.       United      300       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     BARC          St.       United      300       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     CAPE          St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     CAPE          St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     EXTEL         St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     EXTEL         St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     FINSTA        St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     GWM           St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     GWM           St.       United      9.6       Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     IPE           St.       United      2.4.      Async       *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------

<CAPTION>

One Time Total Charges


Service
- -------------------- ------------------  --------------------- ------------ -------------- --------------
                                         X.75 SERVICE
                                         -------- ------------
                        Origination      Per      Per          Access       Monthly        Non
City                 Country             Hour     Kilosg-      Line         Recurring      Recurring
                                                  ment
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
<S>                  <C>                 <C>      <C>          <C>          <C>            <C>
Sidney               Australia              -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Sidney               Australia              -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Sidney               Australia              -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Sidney               Australia              -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Sidney               Australia              -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Sidney               Australia              -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Austria                -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Austria                -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Brussels             Belgium                -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Brussels             Belgium                -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -       *            *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
</TABLE>

                                      B-33

<PAGE>
<TABLE>
<CAPTION>
                                                                                          Monthly Charges
One Time Total Charges
                                                            Charges
                                                                                                 SprintNet
Service                                 Installation
- -------------------- ------------------ ------------- --------------------- --------------------- -----------------------
                                                                                                  X.25 SERVICE
                                                                                                  -----------------------
                        Origination                       Destination       Access TP Port        Access
City                 Country            Dist co       City      Country     Speed     Protocol    Line        Traffic
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
<S>                  <C>                <C>           <C>       <C>         <C>       <C>         <C>         <C>
London               United Kingdom     LIFFE1        St.       United      19.2      Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     LIFFE2        St.       United      19.2      Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     LME           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     LME           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     NWB1          St.       United      300       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     NWB1          St.       United      300       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     OM            St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     SMNCLN        St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     SMNCLN        St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     VWB           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Paris                France             MATIF         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Paris                France             MATIF         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     England            SBID          St.       United      64        Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Hong Kong            Hong Kong          HKFE          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Hong Kong            Hong Kong          HKFE          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Hong Kong            Hong Kong          HKSB          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Hong Kong            Hong Kong          HKSE          St.       United      19.2      Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Hong Kong            Hong Kong          HKSE          St.       United      19.2      Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Indonesia          JSEX          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Italy              MILAN         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Italy              MILAN         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              JASDAQ        St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              JASDAQ        St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
</TABLE>
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>
<TABLE>
<CAPTION>
One Time Total Charges
Service
- -------------------- ------------------  --------------------- ------------ -------------- --------------
                                         X.75 SERVICE
                                         -------- ------------
                        Origination      Per      Per          Access       Monthly        Non
City                 Country             Hour     Kilosg-      Line         Recurring      Recurring
                                                  ment
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
<S>                  <C>                   <C>        <C>      <C>          <C>            <C>
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Paris                France                 -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Paris                France                 -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     England                -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Hong Kong            Hong Kong              -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Hong Kong            Hong Kong              -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Hong Kong            Hong Kong              -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Hong Kong            Hong Kong              -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Hong Kong            Hong Kong              -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Indonesia              -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Italy                  -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Italy                  -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -         *            *            *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
</TABLE>
* CONFIDENTIAL TREATMENT REQUESTED
                                      B-34
<PAGE>
<TABLE>
<CAPTION>
                                                                                          Monthly Charges
One Time Total Charges
                                                            Charges
                                                                                                 SprintNet
Service                                 Installation
- -------------------- ------------------ ------------- --------------------- --------------------- -----------------------
                                                                                                  X.25 SERVICE
                                                                                                  -----------------------
                        Origination                       Destination       Access TP Port        Access
City                 Country            Dist co       City      Country     Speed     Protocol    Line        Traffic

- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
<S>                  <C>                <C>           <C>       <C>         <C>       <C>         <C>         <C>
Tokyo                Japan              JBT           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              JBT           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              JBW           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              NEN           St.       United      2.4       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              TCE           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              TCE           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              TIFFE         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              TIFFE         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Lisbon               Portugal           LISBON        St.       United      10.6      Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Malaysia           BRNMA         St.       United      1.2       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Malaysia           BRNMA         St.       United      1.2       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Malaysia           KLSE          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Malaysia           KLSE          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Mexico             BANAMEX       St.       United      2.4       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Mexico             BLFIN         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Amsterdam            Netherlands        AMSE          St.       United      19.2      Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Amsterdam            Netherlands        AMSE          St.       United      19.2      Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Amsterdam            Netherlands        EOE           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Amsterdam            Netherlands        EOE           St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     New Zealand        NZSE          St.       United      2.4       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Singapore            Singapore          SESX          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Singapore            Singapore          SESX          St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Singapore            Singapore          SIMEX         St.       United      9.6       Async         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------


<CAPTION>

One Time Total Charges


Service
- -------------------- ------------------  --------------------- ------------ -------------- --------------
                                         X.75 SERVICE
                                         -------- ------------
                        Origination      Per      Per          Access       Monthly        Non
City                 Country             Hour     Kilosg-      Line         Recurring      Recurring
                                                  ment
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
<S>                  <C>                   <C>        <C>      <C>          <C>            <C>
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Lisbon               Portugal               -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Malaysia               -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Malaysia               -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Malaysia               -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Malaysia               -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Mexico                 -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Mexico                 -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Amsterdam            Netherlands            -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Amsterdam            Netherlands            -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Amsterdam            Netherlands            -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Amsterdam            Netherlands            -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     New Zealand            -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Singapore            Singapore              -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Singapore            Singapore              -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Singapore            Singapore              -          -            *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
</TABLE>

* CONFIDENTIAL TREATMENT REQUESTED

                                      B-35


<PAGE>
<TABLE>
<CAPTION>
                                                                                          Monthly Charges
One Time Total Charges
                                                            Charges
                                                                                                 SprintNet
Service                                 Installation
- -------------------- ------------------ ------------- --------------------- --------------------- -----------------------
                                                                                                  X.25 SERVICE
                                                                                                  -----------------------
                        Origination                       Destination       Access TP Port        Access
City                 Country            Dist co       City      Country     Speed     Protocol    Line        Traffic

- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
<S>                  <C>                <C>           <C>       <C>         <C>       <C>         <C>         <C>
Singapore            Singapore          SIMEX         St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Singapore            Singapore          SPHLSG        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Johannesburg         South Africa       _SE           St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Madrid               Spain              MSE           St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Madrid               Spain              MSE           St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Stockholm            Sweden             NORDQT        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Stockholm            Sweden             NORDQT        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Stockholm            Sweden             NORDQT        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Bangkok              Thailand                         St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZBRHQ        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZBRHQ        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZMOSL        St.       United      19.2      Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZBRHQ        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZBRHQ        St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZMOSL        St.       United      19.2      Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZBRHQ        St.       United      1.2       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Canada             ZZNYNY        St.       United      1.2       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Ireland                          St.       United      9.6       Async          *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     United Kingdom     TELEK         St.       United      9.6       Bisync         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     United Kingdom     TELEK         St.       United      9.6       Bisync         *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Japan              TKSEX         St.       United      64        Bisync/EB      *            *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Tokyo                Japan              TKSEX         St.       United      64        Bisync/EB      *            *
                                                      Louis     States                CDIC
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------



<CAPTION>

One Time Total Charges


Service
- -------------------- ------------------  --------------------- ------------ -------------- --------------
                                         X.75 SERVICE
                                         -------- ------------
                        Origination      Per      Per          Access       Monthly        Non
City                 Country             Hour     Kilosg-      Line         Recurring      Recurring
                                                  ment
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
<S>                  <C>                   <C>        <C>      <C>          <C>            <C>
Singapore            Singapore              -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Singapore            Singapore              -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Johannesburg         South Africa           *          *            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Madrid               Spain                  -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Madrid               Spain                  -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Stockholm            Sweden                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Stockholm            Sweden                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Stockholm            Sweden                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Bangkok              Thailand               *          *            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Canada                 -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Ireland                -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     United Kingdom         -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     United Kingdom         -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Japan                  -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Tokyo                Japan                  -          -            *            *               *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
</TABLE>

* CONFIDENTIAL TREATMENT REQUESTED

                                      B-36

<PAGE>
<TABLE>
<CAPTION>
                                                                                          Monthly Charges
One Time Total Charges
                                                            Charges
                                                                                                 SprintNet
Service                                 Installation
- -------------------- ------------------ ------------- --------------------- --------------------- -----------------------
                                                                                                  X.25 SERVICE
                                                                                                  -----------------------
                        Origination                       Destination       Access TP Port        Access
City                 Country            Dist co       City      Country     Speed     Protocol    Line        Traffic

- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
<S>                  <C>                <C>           <C>       <C>         <C>       <C>         <C>         <C>
Taipei               Taiwan             TWSE          St.       United      2.4       Async-            *           *
                                                      Louis     States                Dial
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Sydney               Australia          ASX           St.       United      9.6       X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Sydney               Australia          ASX           St.       United      9.6       X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     AO            St.       United      64        X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     BO            St.       United      64        X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     A1            St.       United      64        X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
London               United Kingdom     B1            St.       United      64        X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Frankfurt            Germany            DTBF          St.       United      64        X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Frankfurt            Germany            DTBF          St.       United      64        X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Frankfurt            Germany            TPF           St.       United      19.2      X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Frankfurt            Germany            TPF           St.       United      19.2      X.25              *           *
                                                      Louis     Stated
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Mexico             BOLSA         St.       United      9.6       X.25              *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Switzerland        ATB           St.       United      64        X.25              *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
                     Switzerland        ATB           St.       United      64        X.25              *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------
Paulo                Brazil                           St.       United      9.6       X.75              *           *
                                                      Louis     States
- -------------------- ------------------ ------------- --------- ----------- --------- ----------- ----------- -----------

- -------------------- ------------------ ------------- --------- --------------------------------- ----------- -----------
                                                                TOTALS                                  *           *
- -------------------- ------------------ ------------- --------- --------------------------------- ----------- -----------
* CONFIDENTIAL TREATMENT REQUESTED

<CAPTION>

One Time Total Charges


Service
- -------------------- ------------------  --------------------- ------------ -------------- --------------
                                         X.75 SERVICE
                                         -------- ------------
                        Origination      Per      Per          Access       Monthly        Non
City                 Country             Hour     Kilosg-      Line         Recurring      Recurring
                                                  ment
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
<S>                  <C>                   <C>        <C>      <C>          <C>            <C>
Taipei               Taiwan                 -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Sydney               Australia              -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Sydney               Australia              -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
London               United Kingdom         -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Frankfurt            Germany                -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Frankfurt            Germany                -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Frankfurt            Germany                -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Frankfurt            Germany                -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Mexico                 -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Switzerland            -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                     Switzerland            -          -             *             *              *

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
Paulo                Brazil                 *          *             *             *              *

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

- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
                                            *          *             *             *              *
- -------------------- ------------------  -------- ------------ ------------ -------------- --------------
</TABLE>

RATES:                              Async =        83
                                    X.25 =         14
                                    Bisync =        4
Pricing provided is in US dollars

Access Line  Installation  charges  include  access line  installation  and port
installation
Access line charges are budgetary
Value added tax (VAT) is not included in pricing
Service is subject to availability at time of order
* Service charges noted but not included in totals

* CONFIDENTIAL TREATMENT REQUESTED

                                      B-37



                                                                   EXHIBIT 10.18

                                 AMENDMENT FIVE
                                     TO THE
                            MANAGED NETWORK AGREEMENT
                                     BETWEEN
                       SPRINT COMMUNICATIONS COMPANY, L.P.
                                       AND
                               BRIDGE DATA COMPANY

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.

The  Managed  Network  Agreement  ("Agreement")  between  Sprint  Communications
Company, L.P. ("Sprint") and Bridge Data Company ("Bridge"), having an effective
date of March 1, 1995, as amended, is hereby further amended as set forth below.

WHEREAS,  Sprint and Bridge have  previously  entered into an Agreement  for the
provision of managed network services; and

WHEREAS, Sprint and Bridge desire to amend the Agreement.

NOW THEREFORE, the parties mutually agree to the following:

1.       Attachment B.  The following changes are hereby made to Attachment B:

         a)    DOMESTIC  PRICING Section I. Equipment - Purchase Price.  Add the
               following equipment to the list of equipment.
<TABLE>
<CAPTION>

          Model                 Description                       List Price           Net Price
          -----                 -----------                       ----------           ---------
<S>                             <C>                               <C>                  <C>
          AE1001010             BayNetworks ANH                   $2245                $1459.25
                                8 Port Router

          88039901              DB25M-DB25F Cable                 $29                  $29
</TABLE>

         b)    DOMESTIC  PRICING  Section I. Equipment - Purchase  Price.  Model
               AE008017 should now read Model AE008023.

         c)    DOMESTIC  PRICING Section I. Equipment - Purchase Price. The list
               price and net price for the Model 7919 BayNetworks Power Cord (2)
               should now be N/C.


         d)    DOMESTIC  PRICING  Section I. Equipment - Purchase Price Note 4.)
               Add (1) T-Connector.


          e)   GLOBAL  PRICING  Section III.  Pricing for Canada.  A - Equipment
               Installation.  Price  should now be * per site.  Delete the words
               "and configured" from 2).

* CONFIDENTIAL TREATMENT REQUESTED
Bridge/Sprint Confidential               -1-                            11/21/96

<PAGE>

         f)    GLOBAL  PRICING  Section III.  Pricing for Canada . B - Equipment
               Maintenance/Management. Delete this entire section and insert the
               following  language:  "Equipment  Maintenance  and  Management in
               Canada are the responsibility of Bridge."

2.       All other terms and  conditions of the  Agreement  shall remain in full
         force and effect, except as expressly stated herein.

IN WITNESS WHEREOF,  the parties have executed this Amendment Six as of the date
of the last signature below.

SPRINT COMMUNICATIONS CO., L.P.                BRIDGE DATA COMPANY

/s/ George Putney                              /s/ Robert McCormick
- -------------------------------                ---------------------------------
Signature                                      Signature


George Putney                                  Robert McCormick
- -------------------------------                ---------------------------------
Printed Name                                   Printed Name


Branch Manager                                 Executive Vice President
- -------------------------------                ---------------------------------
Title                                          Title


12/05/96                                       12/06/96
- -------------------------------                ---------------------------------
Date                                           Date



Bridge/Sprint Confidential               -2-                            11/21/96


                                                                   EXHIBIT 10.19


                                  AMENDMENT SIX
                                     TO THE
                            MANAGED NETWORK AGREEMENT
                                     BETWEEN
                       SPRINT COMMUNICATIONS COMPANY, L.P.
                                       AND
                               BRIDGE DATA COMPANY

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.

The  Managed  Network  Agreement  ("Agreement")  between  Sprint  Communications
Company, L.P. ("Sprint") and Bridge Data Company ("Bridge"), having an effective
date of March 1, 1995, as amended, is hereby further amended as set forth below.

WHEREAS,  Sprint and Bridge have  previously  entered into an Agreement  for the
provision of managed network services; and

WHEREAS, Sprint and Bridge desire to amend the Agreement.

NOW THEREFORE, the parties mutually agree to the following:

1.       Attachment B. The following item is hereby incorporated into Attachment
         B - MISCELLANEOUS CHARGES:

         III.     CD-ROM CHARGES

                  Provides electronic format for Frame Relay Billing
                  Customer's  monthly  recurring  charge  for  receipt  of  it's
invoice on CD-ROM is *

2.       All other terms and  conditions of the  Agreement  shall remain in full
         force and effect, except as expressly stated herein.

IN WITNESS WHEREOF, the parties have executed this Amendment Five as of the date
of the last signature below.

SPRINT COMMUNICATIONS CO., L.P.              BRIDGE DATA COMPANY

/s/ George Putney                            /s/ Kevin J. Schott
- ----------------------------------           ----------------------------------
Signature                                    Signature


George Putney                                Kevin J. Schott
- ----------------------------------           ----------------------------------
Printed Name                                 Printed Name


Branch Manager                               Vice President/Controller
- ----------------------------------           ----------------------------------
Title                                        Title


5/23/97                                      5/23/97
- ----------------------------------           ----------------------------------
Date                                         Date


* CONFIDENTIAL TREATMENT REQUESTED
Bridge/Sprint Confidential               -1-



                                                                   EXHIBIT 10.20

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 SEVEN
                                     TO THE
                            MANAGED NETWORK AGREEMENT
                                     BETWEEN
                       SPRINT COMMUNICATIONS COMPANY L.P.
                                       AND
                               BRIDGE DATA COMPANY

The  Managed  Network  Agreement  ("Agreement")  between  Sprint  Communications
Company L.P. ("Sprint") and Bridge Data Company ("Bridge"),  having an effective
date of March 1, 1995, as amended, is hereby further amended as set forth below.

WHEREAS,  Sprint and Bridge have  previously  entered into an Agreement  for the
provision of Sprint Frame Relay Service and Sprint Managed Network Services; and

WHEREAS,  Sprint and Bridge  desire to extend the  Agreement  for an  additional
three (3) year period.

NOW THEREFORE, the parties mutually agree to the following:

1.       Section  3.  Term and  Extensions.  Paragraphs  (a) and (b) are  hereby
         deleted in their entirety and replaced with the following:

         (a)    The initial term of this  Agreement  shall  commence on the last
                date shown on the signature  page (Seventh  Amendment  Effective
                Date),  and shall  continue  in full  force and  effect  through
                January  31,  2002  unless  terminated  in  accordance  with its
                provisions.

         (b)    Bridge shall have the right to extend the term of this Agreement
                for up to two (2)  successive  one (1) year  periods  after  the
                expiration of the term (as the same may be extended  pursuant to
                section 9).  Bridge must exercise its renewal right by providing
                Sprint thirty days advance  written notice of Bridge's intent to
                extend.

2.       Section 7. Rates and Charges. Section 7 is amended to add the following
         new paragraph:

         "Sprint may adjust its rates and charges or impose additional rates and
         charges on Customer in order to recover amounts that Sprint is

Bridge/Sprint Confidential               -1-                             8/28/98

<PAGE>
         required by governmental or  quasi-governmental  authorities to collect
         on behalf of or pay to others in support  of  statutory  or  regulatory
         programs.  Examples of such programs  include,  but are not limited to,
         the Universal  Service Fund, the  Presubscribed  Interexchange  Carrier
         Charge, and compensation to payphone service providers for use of their
         payphones to access sprint's service."

3.       Section 9.  Minimum  Commitment.  Delete  Section 9 in its entirety and
         replace with the following language:

                  "BRIDGE agrees to achieve a minimum annual commitment  ("MAC")
                  of  * of  Contributory  Services  during  each  Contract  Year
                  (defined  as the 12 billing  month  period  commencing  on the
                  Effective  Date) of the Term.  "Contributory  Services"  shall
                  include  Service  usage  charges for the  following  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 Managed Network
                  Services,  Global Sprint Managed  Network  Services,  Domestic
                  Sprint Dedicated  Access  Facilities  ("DAFs"),  Global Sprint
                  DAFs,  Domestic  Sprint  Dedicated  IP  Service,   Sprint  ATM
                  Service,  and  the  total  monthly  circuit  charges  for  the
                  domestic  portion of International  private line circuits.  In
                  the  event  the  Term 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.

                  If Bridge is unable to satisfy  the MAC for a  Contract  Year,
                  Bridge  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.

                  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

Bridge/Sprint Confidential               -2-                             8/28/98
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                  will  be  due  and  payable  according  to the  payment  terms
                  contained in this Agreement.


4.       Attachment  B (Rates  and  Charges)  -  Domestic  Pricing - SECTION I -
         EQUIPMENT  PURCHASE  PRICE.  This SECTION is superseded in its entirety
         and is replaced by the following paragraphs:

SECTION I -  EQUIPMENT PURCHASE PRICE

The following  prices and discount  percentages  will apply to Equipment  Bridge
purchases from Sprint during the Term which is to be located in the  continental
USA.

         a)       Customer will receive a * discount off Sprint's list price (at
                  time of purchase) on all Bay Networks Equipment purchased from
                  Sprint  (except as set forth in  paragraph  (o) below) that is
                  located in the  continental  USA, as long as Bridge  purchases
                  all Bay Networks Equipment through Sprint.

         b)       Customer will receive a * discount off Sprint's list price (at
                  time of purchase)  on Telebit  Networking  Hardware  purchased
                  from Sprint.

         c)       Customer  will be charged a * fixed  non-recurring  charge for
                  each BNC Transceiver  Package purchased from Sprint during the
                  Term. The charge for each BNC Transceiver  Package consists of
                  one  transceiver,   two  terminators,   one  T-Connector,  and
                  installation.

         d)       Customer will receive a * discount off Sprint's list price (at
                  time of purchase) on Microcom Modem  Equipment  purchased from
                  Sprint.

         e)       Customer will be  charged a * fixed  non-recurring  charge for
                  each SP1530 Aduan  purchased from Sprint.  If Bridge  provides
                  the DSUs,  Bridge is responsible  for providing two DSU cables
                  as well as the DSU.  One cable will  connect to the router and
                  one will connect to the Telco demare.

         f)       Customer  will be  charged  a fixed * for each  WAN  Interface
                  Cable (Model No. 930703-008) purchased from Sprint.

         g)       Customer  will be charged a * fixed  non-recurring  charge for
                  each 910418-008 DB(M)/DB25 Cable purchased from Sprint.


Bridge/Sprint Confidential               -3-                             8/28/98
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

         h)       Customer  will be charged a * fixed  non-recurring  charge for
                  each 950846-006 DB25(F)/V.35(M) Cable purchased from Sprint.

         i)       Customer  will be charged a * fixed  non-recurring  charge for
                  each 3520 Codex DSU purchased from Sprint.  If Bridge provides
                  the Codex DSUs,  Bridge is responsible for  de-installing  the
                  DSU,  upgrading  the cables,  and shipping the DSU to Sprint's
                  inventory site(s).

         j)       Bridge will receive a * discount  off Sprint's  list price (at
                  time of purchase) on Digital  Transmission  System, Inc. (DTS)
                  Equipment purchased from Sprint.

         k)       Bridge will receive the following  discounts off Sprint's list
                  price  (at time of  purchase)  on  Ascend  (formerly  Cascade)
                  Equipment purchased from Sprint.

         (1)      a * discount on Ascend (formerly Cascade) Equipment  purchased
                  from Sprint, except as set forth in subparagraph (2), below;

         (2)      a * discount on Ascend  Pipeline 75 and  Pipeline 85 Equipment
                  purchased from Sprint; and

         l)       Bridge  will be  charged an * fixed  non-recurring  charge for
                  each Visual Networks  ASE-BDE DSU purchased from Sprint.  This
                  charge  includes  a V.35  Router  Cable,  and a cable  package
                  consisting of one Network  Interface Cable, one Ethernet Patch
                  Cable, and one Administration Port Cable.

         m)       Bridge will be charged a * fixed non-recurring charge for each
                  Visual Networks ASE-EDE purchased from Sprint.

         n)       Bridge will be charged a * fixed non-recurring charge for each
                  Visual Networks ASE-CDE DI purchased from Sprint.

         o)       Bridge will be charged a * fixed non-recurring charge for each
                  Bay Networks ARN Router  purchased from Sprint,  provided that
                  Bridge  places an initial  order for at least 500 ARN  Routers
                  with the following configuration:  Bay Stack 101 10Base-T Hub,
                  ARN Ethernet Base Unit 16 DRAM, ARN Serial Adapter Module,  IP
                  Access Suite 8M PCMCIA, 7919 Power Cord US.

Bridge/Sprint Confidential                    -4-                        8/28/98

* CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

5.       Attachment B (Rates and Charges) - Domestic Pricing - SECTION II. - CPE
         INSTALLATION.  Add  and/or  revise  the  language  in this  Section  as
         follows:

<TABLE>
<CAPTION>

                                       First Device(6)      Second Device (5)
      Equipment                        Install Price        Install Price (same location)
      ---------                        -------------        -----------------------------
<S>                                    <C>                  <C>
      Ascend Pipeline 75                  *                      *
      Ascend Pipeline 85                  *                      *
      Bay Networks ARN Router             *                      *
      Visual Networks ASE-EDE DSU         *                      *
      Visual Networks ASE-CDE DI          *                      *
</TABLE>

"Customer will be charged a * fixed  non-recurring  installation charge for each
of the following occurrences during the Term:

         TP to Cascade Conversions
         TP to TP Conversions
         Hot Cut Moves
         Cascade to Cascade Conversions"

6.       Attachment  B (Rates and  Charges) - Domestic  Pricing - SECTION  III -
         MAINTENANCE. Add and/or revise the language in this Section as follows:


Bridge/Sprint Confidential               -5-                             8/28/98
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>


         Equipment                       Response               Price

         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.

7.       Attachment  B (Rates and  Charges).  Domestic  Pricing - SECTION  VI. -
         FRAME  RELAY -  Paragraph  A.  Access.  Option  I.  This  paragraph  is
         superseded in its entirety by the following paragraphs:

         "Option I

         (a)      If Customer utilizes the access pricing from the SIA contract,
                  Customer will be charged the applicable  rate for local access
                  from the SIA contract for each SIA Domestic Sprint Frame Relay
                  site. For non-SIA Domestic Sprint Frame Relay sites,  Customer
                  will  receive a *  discount  off  Sprint's  monthly  recurring
                  Tariff 8 rates for each  Sprint-provided  56Kbps and T-1 local
                  access line installed or in service during the Term.

         (b)      Sprint  will  waive * of the COC  and  ACF  monthly  recurring
                  charges for each  Sprint-provided  56Kbps or T-1 local  access
                  line installed or in service during the Term.

         (c)      Customer will be charged the  applicable  Sprint Tariff 8 non-
                  recurring  installation charge for each Sprint-provided 56Kbps
                  or T-1 local access line installed during the Term,  except as
                  set forth in subparagraph (d) below.

         (d)      Sprint will waive * of the non-recurring  installation  charge
                  for each  Sprint-provided  TCG type I or type 2 56Kbps  or T-1
                  local access line installed during the Term.

         (e)      Customer  will be charged a * fixed monthly  recurring  charge
                  and a * fixed   non-recurring  installation  charge  for  each
                  additional DSX  assignment  installed or in service during the
                  Term.

         (f)      Customer  will  be  charged  a * fixed  non-recurring  mishome
                  charge for each 56/64 Kbps  access  circuit  mishomed  between
                  Sprint POPs in New York City.

Bridge/Sprint Confidential                 -6-                           8/28/98

* CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

         (g)    Customer  will  be  charged  a  *  fixed  non-recurring  mishome
                charge for each T-1 access circuit  mishomed between Sprint POPs
                in New York City.

8.       Attachment  B (Rates and  Charges)  -  Domestic  Pricing - SECTION VI -
         FRAME RELAY - Paragraph C. PVC.  This  paragraph is  superseded  in its
         entirety by the following paragraphs:

         (a)    Burst Express (Zero CIR) PVCs

         Customer will be charged  a  * fixed monthly  recurring charge for each
         Domestic  Sprint Frame Relay Burst  Express (Zero CIR) PVC installed or
         in service during the Term.

         (b)    Burst Express Plus (Reserved CIR) PVCs

         Customer will be charged the applicable fixed monthly  recurring charge
         from the table below for Domestic Sprint Frame Relay Burst Express Plus
         (Reserved  CIR) PVCs  installed  or in  service  during  the Term.  The
         Monthly Recurring Charge includes two (2) Burst Express Plus PVCs.

                                                  Monthly Recurring Charge
         PVC Speed                                For 2 Burst Express Plus PVCs
         ---------                                -----------------------------
         16 Kbps                                         *
         32 Kbs                                          *
         38.4 Kbs                                        *
         64 Kbps                                         *
         128 Kbps                                        *
         192 Kbps                                        *
         256 Kbps                                        *
         320 Kbps                                        *
         384 Kbps                                        *
         448 Kbps                                        *
         512 Kbps                                        *
         576 Kbps                                        *
         640 Kbps                                        *
         704 Kbps                                        *
         768 Kbps                                        *
         832 Kbps                                        *
         896 Kbps                                        *
         960 Kbps                                        *
         1,024 Kbs                                       *


Bridge/Sprint Confidential                  -7-                          8/28/98
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

9.       Attachment B (Rates and Charges) - Domestic  Pricing- SECTION VI. - ATM
         SERVICES. Insert the following item to this Section:

         B.  Port Connection Charges

              Port        Installation Charge        Monthly Recurring Charge
              ----        -------------------        ------------------------
              OC-3            *  each                    *  each per month**

        **No other discounts apply to OC-3 Ports.  Each Port must be ordered for
          a   minimum   term  of  3  years.   Additional   charges   apply   for
          diversity/alternate routing.

10.      Attachment F  (Facilities  Services  Agreement) - Section 2.  Equipment
         Rack Space. Replace the second paragraph with the following language:

         "For lease of the Equipment  Rack Space during the Term,  Customer will
         be charged the fixed  charges set forth  below.  The charges  shall not
         begin until the equipment is installed.

         1)    a fixed  non-recurring  site  preparation  charge  of * for  each
               instance of rack and/or ancillary services  installation activity
               which  includes  up to  two  (2)  consecutive  working  days  for
               installation supervision and escort (thereafter, the escort rates
               as outlined in Paragraph 7 herein will apply);

         2)    the applicable fixed monthly recurring fee set forth below, which
               shall  include  the cost of up to 20 AMPS of AC or DC  electrical
               power furnished to Customer by Sprint hereunder. Customer will be
               charged a  *  fixed charge for each  additional AMP of electrical
               power used by Customer in a month.

                  a)  for each Equipment Rack Space  installed  prior to January
                      1, 1997, a monthly  recurring fee of * for each  Equipment
                      Rack Space per Sprint POP site used; or

                  b)  for each Equipment Rack Space  installed  after January 1,
                      1997, a monthly recurring fee of * for each Equipment Rack
                      Space per Sprint POP site used.

11.      A new section 34 is hereby added to the Agreement, as follows:

         34.   Applicability  of Tariff.  All Standard  Custom  Network  Service
               Arrangement  terms and conditions in Sprint F.C.C.  Tariff No. 12
               apply to this  Agreement.  Rates,  charges and  discounts for all
               types, service

Bridge/Sprint Confidential               -8-                             8/28/98
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

         elements,  features  and  other  products  and  services  not  in  this
         Agreement  will be those  provided  under the  applicable  Sprint  base
         service  tariff or public price list.  Additional  terms and conditions
         relating  to  services  provided  to  Customer  are  contained  in  the
         applicable tariffs. The terms and conditions of any Tariff and/or other
         discount or incentive  programs  apply to the services and discounts or
         incentives  available under such Tariff or program. In order to receive
         Term  Plan or other  incentive  discounts  Customer  must  execute  the
         applicable  agreements.  Any terms and  conditions  applicable  to such
         discounts  and/or  programs which Customer elects to participate in are
         in addition to the terms and conditions applicable to the Discounts.


12.      A new section 35 is hereby added to the Agreement, as follows:

         35.   Use of Sprint  Products and  Services.  Customer  uses the Sprint
               Products  and Services as an element of the products and services
               it provides to its customers.  Customer  acknowledges  that it is
               solely  obligated to provide billing and customer  service to its
               customers,  and that it is solely  responsible for collecting all
               amounts owed from its customers. Customer assumes all risk of bad
               debt or  non-payment by its  customers.  Customer  represents and
               warrants  that  invoices  and other  materials it provides to its
               customers  do  not  identify  Sprint.  If it is  determined  that
               Customer's  activities  constitute a resale of telecommunications
               services or similar  activity or if Customer  becomes  subject to
               regulatory filing, licensing or reporting requirements,  Customer
               will be solely  responsible  for  complying  with any  applicable
               laws, regulations, decisions, or orders, inclding the FCCs rules,
               regulations and decisions.

13.      All other terms and  conditions of the  Agreement  shall remain in full
         force and effect, except as expressly stated herein.

IN WITNESS  WHEREOF,  the parties have executed this  Amendment  Seven as of the
date of the last signature below.

SPRINT COMMUNICATIONS                       BRIDGE DATA COMPANY
COMPANY L.P.

                                            /s/ Robert McCormick
- ------------------------------              -----------------------------
Signature                                   Signature

Bridge/Sprint Confidential               -9-                             8/28/98

<PAGE>


                                                Robert McCormick
- ------------------------------                  ----------------------------
Printed Name                                    Printed Name


                                                Executive Vice President
- ------------------------------                  ----------------------------
Title                                           Title

                                                8/28/98
- ------------------------------                  ----------------------------
Date                                            Date



Bridge/Sprint Confidential               -10-                            8/28/98



                                                                   EXHIBIT 10.21

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.

                                SERVICE AGREEMENT

         This  Agreement  is made as of August 15,  1996,  between IXC  Carrier.
Inc.,  a Nevada  corporation  ("Lessor"),  5000  Plaza on the Lake,  Suite  200,
Austin,  Texas 78746,  and  Diamond-Net,  I.S.P.,  Inc., a Missouri  Corporation
("Lessee") 7777 North Bonhomme, Suite 1000, Clayton, Missouri 63105.

         1. Scope and Rates.  Lessor  and/or its  affiliates  own and  operate a
fiber  optic and digital  microwave  telecommunications  system (the  "System").
Lessor desires to lease DS-1, DS-3 or other  telecommunications  capacity on the
System to Lessee.  Lessor shall use its best efforts  (considering  the needs of
its other  customers) to provide Service for which a Marketing  Service Order in
the form attached  hereto as Exhibit A (as such form may be amended from time to
time by  Lessor)  has been  accepted.  The  rates for  Service  are set forth in
Exhibit D, unless  otherwise  specified in the applicable  Purchase  Order.  The
Marketing  Service Order shall contain the  applicable  lease terms for Lessee's
utilization of the System.  Lessee may also order the services listed in Exhibit
B, subject to availability.  Lessor may lease  telecommunications  capacity from
another carrier in order to provide the Services hereunder.

         2.  Payments.  Lessee shall pay Lessor each month within 30 days of the
date of invoice: (i) the monthly lease rate (prorated for any partial month) for
each Available Circuit;  and (ii) the charges for other services  received.  The
first invoice shall be for the first two months;  each invoice  thereafter shall
be for the  following  month.  If any  invoice is not paid when due:  (i) a late
charge shall accrue equal to 1-1/2% (or the maximum  legal rate, if less) of the
unpaid balance per month; and (ii) Lessor may suspend or terminate the Service.

         3. Term. The term hereof shall continue  through the end of the Circuit
Lease  Term  which is last to  expire.  If  Service  continues  thereafter,  the
applicable rates may be renegotiated;  provided,  however, that such rates shall
not exceed the present rates increased by a percentage  equal to the rise in the
Department of Labor,  Bureau of Labor  Statistics,  Consumer Price Index for all
Urban Consumers,  U.S. City Average,  Subgroup "All Items"  (1982-1983=100) (the
"Consumer  Price Index")  during the period  beginning with the first full month
following  the date  hereof  and  ending  with the last full  mouth  immediately
preceding  the date on which the rates  hereunder are to be adjusted and Service
may be terminates by either parry upon 30 days' written notice.  If the Consumer
Price Index ceases to be published  or is  converted  into a different  standard
reference base or otherwise revised, such other index as the parties shall agree
upon in writing  shall be  substituted  for the  Consumer  Price  Index;  if the
parties are unable to agree as to such substituted  index,  such matter shall be
submitted to arbitration. Lessee may terminate any Circuit upon 90 days' notice;
provided that if termination  occurs:  (i) prior to the Activation Date,  Lessee
shall reimburse Lessor for all costs of the implementation of such Circuit;  and
(ii) on or after such  date,  Lessee  shall pay:  (A)

<PAGE>

all charges for Service previously rendered;  and (B) the amount due through the
end of the  applicable  Circuit  Lease Term (Lessor  shall try to re-lease  such
Circuit for such term, refunding to Lessee the amount so collected,  if any). If
Lessor:  (i) fails to provide Service within six months of the Requested Service
Date;  or (ii) fails to cure a material  breach  hereof within 45 days of notice
from Lessee, Lessee may, as its only remedy, terminate the affected Circuit.

         4.  Limits of  Liability.  Lessor  shall not be liable for any  direct,
indirect,  reliance or consequential damages, whether foreseeable or not, or for
any damage to property, loss of profits, cost of replacement services, or claims
of customers for service problem caused by any defect, delay in availability, or
failure in the Service or by any other cause. In no event shall Lessor be liable
in excess of the aggregate amount it has collected from Lessee hereunder. Lessor
shall give Lessee a credit in accordance with its then-current outage policy for
periods  in  which  any  Circuit  loses  continuity  and  fails to  comply  with
applicable  specifications.  Such  credit  shall be  Lessee's  sole  remedy with
respect  to such an event;  provided,  however,  that no such  credits  shall be
allowed  and  Lessor  shall not be liable for any  Service  defect  from  causes
outside  its  control,   including   accidents,   cable  cuts,  fires,   floods,
emergencies,  government regulation,  wars, or acts of God. Lessor shall have no
obligation  to provide  Lessee  with any backup  Circuits  for  Service  ordered
hereunder.  LESSOR  DISCLAIMS  ALL EXPRESS AND  IMPLIED  WARRANTIES  RELATING TO
SERVICE,  INCLUDING BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE.  LESSEE HAS NOT RELIED ON ANY REPRESENTATION NOT SET
FORTH HEREIN.

         5. General Terms.  This Agreement  shall be construed under the laws of
Texas.  All notices shall be in writing and shall be deemed given as of the date
of delivery to the  addresses  set forth  below.  The waiver of a breach  hereof
shall not be  construed  to be a waiver of any  subsequent  breach.  Lessor  may
terminate  this  Agreement  without  liability  if Lessee  becomes  bankrupt  or
insolvent.  Each party may refer any dispute  relating  hereto to arbitration in
Austin,  Texas under the rules of the American Arbitration  Association,  and in
such event neither party may commence any action based on such dispute,  and any
action  which has been  commenced  shall be stayed,  pending the outcome of such
arbitration. Each party shall pay its own costs, expenses and attorneys' fees in
connection with any  arbitration  proceeding,  unless the  arbitration  award in
connection  therewith  specifies  otherwise.  If any term  hereof  is held to be
invalid or unenforceable, this Agreement shall be construed without such invalid
or  unenforceable  term.  This  Agreement  is the entire  agreement  between the
parties  pertaining to the Circuits.  This  Agreement may only be modified by an
instrument  in writing  executed  by each party.  Neither  party may assign this
Agreement  without the written  consent of the other party;  provided,  however,
that a  security  interest  in this  Agreement  may be  granted by Lessor to its
lenders so long as such lenders agree in writing to fulfill Lessor's obligations
hereunder. Subject to the limitations of liability set forth in

<PAGE>

Section 4 above,  Lessee shall not  disclose to any third party any  information
regarding  the  rates  hereunder.  Each  party  (each,  an  "Indemnitor")  shall
indemnify the other party (each,  an  "Indemnitee")  for any damage or liability
incurred by the Indemnitee arising from the Indemnitor's  intentional misconduct
or  negligence.  The rates  hereunder  do not include any sales,  use or utility
taxes.  Lessee shall pay to Lessor any such taxes that Lessor may be required to
collect or pay.

         6.  Definitions.  For purposes hereof:  "Available" means all necessary
equipment for a Circuit has been installed.  "Activation  Date" means the date a
Circuit is first made Available to Lessee. "Circuit" means a DS-0, DS-1 or DS-3.
"Circuit  Lease Term" means the term of a Circuit  specified  in the  applicable
Purchase Order. "Circuit Mileage" means the length of a Circuit specified in the
applicable  Purchase Order.  "DS-0" means a circuit complying with TR-TSY-000333
"Switched  and  Special  Access  Services -  Transmission  Parameter  Limits and
Interface  Combinations"  Issue 1, July 1990.  "DS-1" means a circuit  complying
with AT&T Tech. Ref. Pub. 62411, December 1990, with Addendum 1, March 1991, and
Bellcore  TR-MWT-000499,  Issue 5,  December  1993.  "DS-3" shall mean a circuit
meeting the  specifications  set forth in AT&T  Technical  Reference  Pub. 54014
Addendum 1, November 1992 and Bellcore  TB-NWT-608499,  Issue 5, December  1993.
"Purchase Order" means any Lessee purchase order accepted by Lessor.  "Requested
Service  Date"  means the date  Service on a Circuit is  requested  to  commence
specified in the applicable Purchase Order. "Service" means transmission service
provided  between North  American DSX standard  cross-connect  panels located in
Lessor's terminal locations.

         To  confirm  their  agreement  to be bound  hereby,  the  parties  have
executed this agreement below:

IXC Carrier, Inc.                               Diamond Net, I.S.P., Inc.
5000 Plaza on the Lake, Suite 200               7777 North Bonhomme, Suite 1000
Austin, Texas 78746-1050                        Clayton, MO 63105
Attention: Contract Administration              Attention:  Kevin Yarbrough
Telephone No.: (512) 328-1112                   Telephone No.: (314) 727-5596
Facsimile No.: (512) 328-7902                   Facsimile No.: (314) 727-0180

By:  /s/ John R. Flemming                       By:  /s/ Andrew Gladney
    --------------------------------               -----------------------------
         John R. Flemming,                               Andrew Gladney,
         Executive Vice President                        President & CEO
- ------------------------------------            --------------------------------
 (Please Print - Name and Title)                (Please Print - Name and Title)

<PAGE>


                                LIST OF EXHIBITS

Exhibit A             Form of Purchase Order

Exhibit B             Maintenance and other Additional Services

Exhibit C             List of On-net Cities

Exhibit D             List of Rates for Service


<PAGE>
                                    EXHIBIT B

                          CUSTOMER MAINTENANCE SUPPORT

         IXC Carrier,  Inc.'s (hereinafter referred to as IXC) standard fees for
customer  maintenance  support services are as follows (unless set by precedence
in a service contract):

         Maintenance  services  shall be defined as all work performed by IXC on
equipment  provided  by or on  behalf of the  Customer,  or  supervision  of the
Customer's work within IXC's terminate  facilities.  Maintenance Service charges
are not billed for troubles  found within that portion of a circuit  provided by
IXC. The following billing rates apply for these services:

                  A. *  per  hour (4 hour  minimum - if  dispatch  is  required)
Monday  through  Friday during the business hours of 8:00 a.m. - 5:00 p.m. local
time, exclusive of the following holidays:

                           New Years Day
                           President's Day
                           Memorial Day
                           Independence Day
                           Labor Day
                           Thanksgiving Day and the day after Thanksgiving
                           Christmas Day

                  B. * per  hour (4  hour  minimum) for overtime work done after
business hours (defined above) and/or on holidays (defined above) and/or all day
on Saturdays and Sundays.

                  C. As requests for maintenance services are typically made via
telephone,  IXC  must  be  advised,  in  writing  as to the  person(s)  who  are
authorized to request service.  It is the Customer's  responsibility to keep IXC
apprised of any changes to its list of representative(s).

                  D.  To  request  technical   assistance  and  help  under  the
maintenance  services,  a call  must be made to out  Network  Control  Center at
1-800-526-2488.  This  number  should  be  used  for IXC  technical  assistance,
troubleshooting  or testing of circuits,  not for service impairment or outages.
The  person  calling  in must be on the  authorized  list in order to commit for
charges for this  technical  assistance.  If that person is not on the list, the
request cannot be accommodated.

                          1. The Network Control Center  personnel will take the
         call,  record  the  caller's  name and phone  number  along  with facts
         concerning the assistance and support  needed.  The caller will then be
         given the number of the "Assistance Ticket."

                                  Page 1 of 4
<PAGE>

                          2. Upon completion of work, this  "Assistance  Ticket"
         will be given to IXC's  Accounting  Department,  and the customer  will
         subsequently  be billed based upon the  information  on that ticket.  A
         copy will be attached to the invoice.

                  E.  Except  for   emergencies,   IXC  technicians   cannot  be
dispatched  unless  requests  are made in  accordance  with the  above  call-out
procedure.







                                  Page 2 of 4
<PAGE>


                  ANCILLARY PRICING SCHEDULE FOR ON-NET SERVICE
<TABLE>
<CAPTION>

NON-RECURRING CHARGES                                                DS-1                    DS-3
- ---------------------                                                ----                    ----
<S>                                                                  <C>                     <C>
New Order Installation (On-Net)                                      *                          *

New Order Installation (Off-Net)                                     *                          *

DS-1 Ramp-Up per DS-O                                                *                          *

Order Change (less than 5 business days)                             *                          *

Order Cancellation (less than 5 business days)                       *                          *

ASR (new or disconnect) (Special Access Only)                        *                          *

ASR Supplement                                                       *                          *

Order Expedite                                                       *                          *

Reconfiguration                                                      Same as install         Same as install

MONTHLY RECURRING CHARGES                                            DS-1                    DS-3
- -------------------------                                            ----                    ----

Monthly circuit charge (IXC portion)                                 *                         *

Cross-connect charge                                                 *                         *
    Other Interexchange Carrier to Lessor local access
    or bypass facility (Lessor long haul not involved)

Local bypass charge                                                  *                         *
    Lessor POP to Lessor POP in same city, with no
    Lessor long haul attached at either Lessor POP

MISCELLANEOUS                                                        RECURRING               NON-RECURRING
- -------------                                                        ---------               -------------

M13 1 yr Term                                                            *                        *
    2+yr Term                                                            *                        *
    3+yr Term                                                            *                        *
ECHO CANCELLER (per circuit end)                                         *                        *
SECOND END LOOP (Ex: for ADPCM)                                          *                        *
DEMAND MAINTENANCE                                                   */hr 8a.m.-5p.m. M-F, 4 hour minimum
                                                                     if dispatch is required; */hr after hours
                                                                     with 4 hour minimum
RACK SPACE                                                           * - subject to availability
SHELF SPACE                                                          */ea/mo              ICB install
DC POWER                                                             */amp/mo (5 amp minimum; 5 amp
                                                                     increments)
CIF AC/DC POWER                                                      *
ALL OTHER SERVICES                                                   See Note (2)
</TABLE>

(1)  All of the above charges are subject to change with a 30-day notice.
(2)  Services not described above will be considered special handling and
     charges will be assessed on an individual basis.

                                  Page 3 of 4
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

DSO ANCILLARY PRICING

New Order Installation                                                        *

Order Cancellation Prior to Turn up                                           *

Order Expedite                                                                *

Reconfiguration (City Pairs the Same)                                         *

DACS Charge (Switching Only)                                                  *

DS0 DACS Port Charge (Bell access at DACS)                                    *

DS1 DACS Port                                                                 *

Minimum Charge per DS-0                                                       *

Notes:

1.   All of the above charges are subject to change with a 30 day notice.

2.   Services  not  described  above will be  considered  special  handling  and
     charges will be assessed on an individual basis.

* CONFIDENTIAL TREATMENT REQUESTED


                                  Page 4 of 4
<PAGE>


                                    EXHIBIT C
                           ON-NET DS-1 AND DS-3 CITIES

<TABLE>
<CAPTION>

<S>                                       <C>                                           <C>
ARIZONA                                   DISTRICT OF COLUMBIA                           Flint
  Phoenix  LATA 666                         Washington, D.C.  LATA 236                     2001 S. Grand Traverse
    Phelps-Dodge Twr, Ste 1702              1828 L Street, N.W., Ste 260                     (313)767
    2600 N. Central (602)279                  (202)833
                                                                                         Grand Rapids
Tucson  LATA 668                          ILLINOIS                                         209 Graham, S.W.
   Arizona Bank Bldg.                       Chicago  LATA 358                              (616)235
   33 N. Stone, Suite 1610                  Prudential Building
    (520)792                                130 E. Randolph, Suite 4001                  Jackson
                                              (312)861                                     170 W. North Street
CALIFORNIA                                                                                   (517)783
  Bakersfield  LATA 734                   INDIANA
   1430 Truxton Ave., Ste 730               Indianapolis  LATA 336                       Kalamazoo
    (805)327                                Merchants Bank Bldg.                           303 Mills St.
                                            11 S. Meridian                                   (616)385
  Fresno  LATA 728                          Suite 1798/1799
   4605 E. Vine                               (317)637                                   Lansing
   (209)486                                                                                230 South St.
                                          Southbend  LATA 332                              (517)482
  Fresno Ter                                211 West Washington St.
   Guarantee Savings                        19th Floor                                   Midland
   B1171 Fulton Mall, Ste. 1201               (219)233                                     1000 Jefferson
    (209)268                                                                                 (517)631
                                          MARYLAND
  Los Angeles  LATA 730                     Baltimore  LATA 238                          Pontiac
   One Wilshire                             1220 S. Howard                                 324 S. Saginaw
   624 S. Grand, Suite 1615                   (301)752                                       (313)338
    (213)689
                                          MICHIGAN                                       Royal Oak
  San Diego  LATA 732                       Ann Arbor                                      3100 W. 14 Mile Rd.
   8933 Complex Dr.                         1615 Plymouth Rd.                                (313)435
    (619)569                                  (313)994
                                                                                         Saginaw
  San Francisco  LATA 722                   Battle Creek                                   315 Meredith
   Metropolitan Life Bldg.                  175 Main Street                                  (517)771
   425 Market St, Ste 3800C                   (616)962
    (415)543                                                                             MISSOURI
                                            Bay City                                       Kansas City  LATA 524
  Sunnyvale  LATA 722                       100 E. Hart                                    Bank of Kansas City
   111 Uranium                                (517)667                                     1125 Grand Ave., Suite 1704
    (408)739                                                                                 (816) 283
                                            Detroit  LATA 340
COLORADO                                    Book Bldg. Suite 2609                          St. Louis  LATA 520
  Colorado Springs  LATA 658                1249 Washington Blvd.                          900 Walnut, Suite 220
   102 S. Tejon, Suite 780                    (313)961                                       (314)231
    (719)471
                                            Detroit                                      NEVADA
 **Denver  LATA 656                         1860 Gratiot Ave.                             **Las Vegas LATA 821
   Bell Building                              (313)259                                      Centel Bldg, Ste 400
   931 14th Street, Ste. 622                                                                125 S Las Vegas Blvd.
    (303)572                                                                                  (702)388

</TABLE>

                                  Page 1 of 3

<PAGE>

<TABLE>
<CAPTION>

<S>                                         <C>                                              <C>
NEW JERSEY                                     Tulsa  LATA 538                                Harlingen  LATA 568
  Newark  LATA 224                               Lookout Mountain                               513 E. Jackson
    744 Broad Street, 3rd Floor                  3500 S. 26th West Avenue                       Matz Building
    (201)824                                     (918)584                                       (210)425
                                                 (918)446
NEW MEXICO                                                                                    Houston  LATA 560
  Albuquerque  LATA 664                      PENNSYLVANIA                                       293 N. Main Street
    200 Lomas Blvd, N.W.                       Philadelphia  LATA 228                           (713)224
    13th Floor                                   2401 Locust St., 2nd Floor
    (505)247                                     (215)564                                     Lubbock  LATA 544
                                                                                                1220 Broadway, #1901
NEW YORK                                       Pittsburgh  LATA 234                             (806)762
  New York  LATA 132                             Oliver Building
    60 Hudson St., Ste 206                       535 Smithfield St., Ste 2650                 McAllen  LATA 568
    (212)285                                     (412)281                                       200 S. 10th Street, Suite 704
                                                                                                (210)687
OHIO                                         TEXAS
  Akron  LATA 325                              Abilene  LATA 550                              Midland  LATA 542
    1 Cascade Plaza, Ste 1950                    1049 N. Third, Suite 500                       KMID-TV Studio
  Main & Bowery                                  (915)675                                       La Force Blvd &
  (216)535                                                                                      Air Terminal
                                               Amarillo  LATA 546                               (915)561
  Cincinnati  LATA 922                           Amarillo Petroleum Bldg.
    2300 Carew Tower                             203 W. 8th, Suite 607/608                  San Angelo  LATA 961
    Suite 4701                                   (806)373                                       36 E. Twohig, 15th Floor
    441 Vine St. (513)651                                                                       (915)653
                                               Austin  LATA 558
  Cleveland  LATA 320                            621 Pleasant Valley Road                     San Antonio  LATA 566
    R.F. Keith Bldg., Suite 2117                 (512)389                                       660 S. Santa Rosa
    1621 Euclid Ave.                                                                            (210)225
    (216)771                                   Corpus Christi  LATA 564
                                                 606 N. Carancahua, Ste 816                   Waco  LATA 556
  Columbus  LATA 324                             Wilson Plaza                                   100 S. 26th Street
    Borden Bldg., Level 2B                       (512)882                                       (817)750
    180 E. Broad St.
    614(469)                                   Dallas  LATA 552                              **Priced on an Individual
                                                 Tower of the Americas                         Case Basis (ICB)
  Dayton  LATA 328                               2323 Bryan, Suite 380
    1 National Bank Bldg.
    Suite 2220                                   2223 Houston St.
    130 W. Second (513)461                       (214)954 (214)969

  Toledo  LATA 326                             El Paso  LATA 540
    319 Madison Ave., Ste 2901                   El Paso National
    (419)242                                     Bank Bldg.

OKLAHOMA                                         201 E. Main, Suite 1702
  Oklahoma City  LATA 536                        (915)533
    Liberty Tower
    100 N. Broadway, Ste 3020                  Fort Worth  LATA 552
    (405)232                                     WT Waggoner Blvd.
                                                 810 Houston Suite 1705
                                                 (817)870
</TABLE>

                               Page 2 of 3

<PAGE>

<TABLE>
<CAPTION>

INSTALLED DS-0 CITIES                                               AUGUST, 1996

<S>                                      <C>                          <C>
ARIZONA                                  NPA/NNX                       TEXAS                            NPA/NNX
      Phoenix                            602-279
                                                                       Austin                             512-389
CALIFORNIA                                                             Corpus Christi                     512-883
                                                                       Dallas                             214-741
      Los Angeles                        213-622                       El Paso                            915-533
      San Diego                          619-419                       Fort Worth                         817-777
      Stockton                           209-463                       Harlingen                          210-425
                                                                       Houston                            713-224
DISTRICT OF COLUMBIA                                                   San Antonio                        210-222
      Washington, DC                     202-245                       McAllen                            210-632

ILLINOIS
      Chicago                            312-861                 VIRGINIA
                                                                       Norfolk                            804-622
MARYLAND
      Baltimore                          410-752                 TOTAL DS-O CITIES                        26

MICHIGAN                                                         All cities are equipped for DSO services.
      Birmingham                         313-435
                                                                 Additional cities will be added if cost
MISSOURI                                                         is justified.
      Kansas City                        816-221
      St. Louis                          314-231

NEW MEXICO
      Albuquerque                        505-247

NEW YORK
      New York City                      212-285

OHIO
      Dayton                             513-252

OKLAHOMA
      Oklahoma City                      405-232
      Tulsa                              918-582

PENNSYLVANIA
      Philadelphia                       215-988                    NPA/NNX
      Austin                             512-389
      Corpus Christi                     512-883
      Dallas                             214-741
      El Paso                            915-533
      Fort Worth                         817-777
      Harlingen                          210-425
      Houston                            713-224
      San Antonio                        210-222
      McAllen                            210-632
</TABLE>


                       Page 3 of 3
<PAGE>
                                    EXHIBIT D
                            List of Rates for Service
                            -------------------------

                                 On-Net Service
                                 --------------

DS-0 Service                                                   I.C.B.

DS-1 Service                                                   .1410

DS-3 Service                                                   I.C.B.

Service is for a one (1) year term for On-Net.

                                 Off-Net Service
                                 ---------------

DS-0 Service                                                   I.C.B.

DS-1 Service                                                   I.C.B.

DS-3 Service                                                   I.C.B.

Service  is for a one (1)  year  term or the  term  of the  Underlying  Carrier,
whichever is greater.


                                  Page 1 of 1
<PAGE>
<TABLE>
<CAPTION>
                                                                                   ------------------
<S>                                         <C>                                 <C>
Req'st Svc. Date:                                     EXHIBIT A                     OFFICE USE ONLY
                 -----------------                IXC CARRIER, INC.
      Accepted Earlier Activation:           MARKET SERVICE ORDER (MS0)
Y       N                                                                          MSO#
 ------  ----------                                                                    ------------
Ckt ID:
        ----------------------                                                     ------------------
         PURCHASE ORDER FORM FOR CUSTOMER ORDER NO:
                                                   --------------------
Pursuant to the DIGITAL SERVICE AGREEMENT by and between IXC CARRIER, INC.
As LESSOR and                                                                           as LESSEE,
              --------------------------------------------------------------------------
dated            ,  19   ,  LESSEE orders and LESSOR shall provide the following Digital Transmission Service:
       ----------     ---
   New                      Renew                                  Qty        Rate       Term           Miles
           ---------------             --------------
   Cancel                   Disconnect                 DS-3
           ---------------             --------------           ----------  ---------  ----------  ----------------
   Change                   Expedite   Y      N        DS-1
           ---------------              -----  ------           ----------  ---------  ----------  ----------------
   On Net                   Off Net                    DS0
           ---------------             --------------           ----------  ---------  ----------  ----------------
   Protocol                 Reconfigure                CIF
           ---------------             --------------           ----------  ---------  ----------  ----------------
   Other                                               Other
           ------------------------------------------           ----------  ---------  ----------  ----------------
   Customer Contact:                                   Phone #:                      Fax #
                     --------------------------------          --------------------       -------------------------
   Technical Contact:                                  Phone #:                      Fax #
                     --------------------------------          --------------------       -------------------------
   CITY LOCATION A:                                    CITY LOCATION B:
                     --------------------------------                  --------------------------------------------
- -------------------------------------------------------------------------------------------------------------------
   Special                    Switched                 Special                           Switched
           ----------                    ------------           ----------                         ----------------
   Bypass Y      N            Owner                    Bypass   Y       N                Owner
            ---    ----                  ------------             ----    -----                    ----------------
   LESSOR TO PROVIDE:         CFA:       Y     N       LESSOR TO PROVIDE:                CFA:      Y       N
                                           ---  ----                                                 ----    ------
   LOA:    Y      N           ASR:       Y     N       LOA:     Y      N                 ASR:      Y       N
             ---    ---                    ---  ----              ---    ----                        ----    ------
   CUSTOMER (LESSEE) TO PROVIDE:                       CUSTOMER (LESSEE) TO PROVIDE:
   LOA:    Y      N      Coordinated Convert Y     N   LOA:     Y      N       Coordinated Convert Y       N
             ---    ---                        ---                ---    ---                         -----   ------
   CIF Arrangement  Y     N      CIF Attach  Y     N   CIF Arrangement  Y      N        CIF Attach Y       N
                      ---   ---                ---                        ---    ---                 ----    ------
   Special Instructions                               Special Instructions
                       ------------------------------                     -----------------------------------------
- -----------------------------------------------------  ------------------------------------------------------------
- -----------------------------------------------------  ------------------------------------------------------------

MONTHLY LEASE RATE:                                    NON RECURRING CHARGES:
Monthly IXC Charge:     $                              Installation$                   ASR:      $
                         ----------------                           ----------------              -----------------
Eqpt. Lease Charge:     $                              Installation$                   Reconfig  $
                         ----------------                           ----------------              -----------------
Echo Canceller:         $                              Installation$                   Expedite  $
                         ----------------                           ----------------              -----------------
CIF Racks:              $                              Installation$
                         ----------------                           ----------------
CIF Power:              $                              Installation$
                         ----------------                           ----------------
Other:                  $                              Installation$
                         ----------------                           ----------------
TOTAL:                  $                              TOTAL OF NON RECURRING CHARGES:            $
                         ----------------                                                          ----------------
     Notwithstanding  anything in the Digital Service Agreement to the contrary,
     (1) a security  interest in this  Agreement may be granted by Lessor to any
     Lender  and (2)  Lessor  may from time to time  assign  all its  rights and
     obligations  hereunder with respect to any Circuits to any Affiliate.  Upon
     such  assignment  herein  this  Agreement  shall be deemed  to be  multiple
     agreements,  each  upon the terms and  conditions  set forth  herein by and
     between  Lessee and such  affiliate  with respect to such  circuit  between
     Lessor and Lessee with respect to the circuit not so assigned.

     IN WITNESS  WHEREOF,  the parties have executed this PURCHASE  ORDER on the         day of           19
                                                                                 -------        ---------   ---
- ------------------------------------------------------   -------------------------------------------------------
     LESSOR APPROVAL/TITLE                                   LESSEE AUTHORIZED REPRESENTATIVE/TITLE
     (Service Provider)                                     (Customer)
</TABLE>

<TABLE>
<S>                               <C>

                                  PLEASE FAX THIS DOCUMENT TO CUSTOMER SERVICE FAX # (512) 328-7810

- ----------------------------------------------------------------------------------------------------------------------
For Office Use Only Version 2.0    4/11/95
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>


<PAGE>
                      AMENDMENT NO. 1 TO SERVICE AGREEMENT

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.

                  This Amendment No. 1 to Service  Agreement (this  "Amendment")
is made as of October 22, 1996 (the "Amendment  Effective  Date") by and between
IXC Carrier,  Inc., a Nevada corporation  ("Lessor"),  and Diamond.Net,  I.S.P.,
Inc., a Missouri corporation ("Lessee").

                                   BACKGROUND

                  This Amendment is made with reference to the following facts:

                  A.  Lessee  and Lessor are  parties  to that  certain  Service
Agreement (the "Agreement") dated as of August 15, 1996.

                  B. The parties  desire to amend the Agreement  pursuant to the
terms set forth below.  Each  capitalized  term used and not  elsewhere  defined
herein shall have the meaning set forth for it in the Agreement.

                               TERMS OF AMENDMENT

                  Accordingly, in consideration of the mutual promises set forth
below, the parties hereto hereby agree as follows:

                  1. The  following  paragraphs  are hereby  added to the end of
Section  1.  Scope  and  Rates of the  Agreement  to read in their  entirety  as
follows:

                           Lessee may, at its option,  reconfigure  On-net DS-0,
                  DS-1 or On-net DS-3  Circuits by  disconnecting  such Circuits
                  and simultaneously  ordering new On-net Circuits from Lessor's
                  unused capacity,  but only if all the following conditions are
                  met: (i) such Circuits to be disconnected have been in service
                  at the time of such  reconfiguration for at least three months
                  (for  DS-0  and  DS-1   Circuits)  or  six  months  (for  DS-3
                  Circuits),  (ii) Service  capacity on each such new Circuit is
                  available  from  Lessor  (Lessor  shall  not be  obligated  to
                  construct new Circuit  capacity to fill any Marketing  Service
                  Order);  (iii) Lessee shall pay for such  reconfiguration  the
                  charge  therefore  set  forth  in  Exhibit  B;  and  (iv)  the
                  aggregate  monthly  invoicing  hereunder  for the new Circuits
                  involved in such  reconfiguration must be equal to, or greater
                  than,  the aggregate  monthly  invoicing for the  disconnected
                  Circuits.  Lessee shall have the right to  reconfigure  on-net
                  service and such on-net reconfiguration, so long as it results
                  in an  upgrade  in service  and  revenue  to Lessor,  shall be
                  reconfigured  at * of  the normal  reconfiguration  charges on
                  the ancillary pricing exhibit.

                           Lessor may in the future offer high-capacity services
                  of on-net OC-3C service or larger  capacity  services.  In the
                  event  Lessor   offers

                                       1
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>


                  such on-net services, Lessee may reconfigure existing circuits
                  into such high-capacity services on mutually agreeable terms.


                           Notwithstanding  the  foregoing  paragraph,  Lessee's
                  existing DS-1 Circuit (the "Existing  DS-1  Circuit")  between
                  St. Louis and Kansas City (No. DNN017903) shall be made a part
                  of a  DS-3  Circuit  ordered  by  lessee  (the  "Ordered  DS-3
                  Circuit")  between St. Louis and Kansas City,  Lessee shall be
                  charged  only for the  Ordered  DS-3  Circuit  and not for the
                  Existing  DS-1 Circuit as of the date the Ordered DS-3 Circuit
                  is activated or the  Amendment  Effective  Date,  whichever is
                  later (the "Start Date"),  and Lessee shall remain responsible
                  for any charges  incurred in connection with the Existing DS-1
                  Circuit prior to the Start Date.

                           Lessee  shall order each of the Circuits set forth in
                  Phase I of  Exhibit E (the  "Phase 1  Circuits")  on or before
                  November  29, 1996 and each of the Circuits set forth in Phase
                  2 of Exhibit E (the  "Phase 2  Circuits")  on or before May 1,
                  1997. Prior to ordering the Phase 2 Circuits, Lessee may elect
                  to  replace  any  of  the  Phase  2  Circuits   with  Circuits
                  originating   and/or  terminating  in  different  cities  (the
                  "Replacement  Phase 2 Circuits")  subject to  availability  by
                  Lessor;  provided,  however,  that  Lessee  shall  pay for the
                  Replacement Phase 2 Circuits at the rates set forth in Exhibit
                  D and the  aggregate  monthly  lease rate for the  Replacement
                  Phase 2  Circuits  must be equal  to,  or  greater  than,  the
                  aggregate  monthly lease rate for the replaced  Circuits.  The
                  monthly  lease rate for each of the Phase I Circuits  shall be
                  $0  for  the  five  month  period  immediately  following  the
                  activation  date of each  Circuit in Phase I (the "Five  Month
                  Free  Period")  and  Lessee's  first  invoice  for the Phase I
                  Circuits  shall be for two  months  Service  for each  Phase I
                  Circuit  and be due  within  the  30  day  period  immediately
                  following  the Five Month Free Period.  The monthly lease rate
                  for the Phase 2 Circuits  shall be $0 for the one month period
                  immediately  following the activation  date of each Circuit in
                  Phase 2 (the "One  Month  Free  Period")  and  Lessee's  first
                  invoice  for  each of the  Phase 2  Circuits  shall be for two
                  months  Service for the Phase 2 Circuits and be due within the
                  30 day period immediately following the One Month Free Period.
                  In the event  Lessor  fails to provide the  Service  within 60
                  days  of the  Requested  Service  Commencement  Date  for  any
                  Circuit,  then (a) Lessee,  at its option,  may terminate that
                  Service  on  the  affected   Circuit   without  any  liability
                  whatsoever  and (b)  Lessee's *  Take-or-Pay  Commitment  (set
                  forth below) shall be reduced by the total  aggregate  monthly
                  lease  rates of the  Circuits  which  could not be supplied by
                  Lessor  within  such  period (the  "Unsupplied  Circuits")  if
                  Lessee  procures the Unsupplied  Circuits from another carrier
                  and provides Lessor with a copy of an invoice from such 2

* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                  carrier within 90 days from the Requested Service Commencement
                  Date.   Lessor  shall  provide  Lessee  with  Circuit  routing
                  information  for all on-net  Circuits  ordered  hereunder  for
                  Lessee's network planning purposes as soon as such information
                  is available.


                           Lessee shall have a  Take-or-Pay  Commitment of * per
                  month   beginning  July  1,  1997  and  continuing  60  months
                  thereafter (the "Take-or-Pay Commitment Period")."

                  2.  The  following  sentence  is  hereby  added  to the end of
Section 2. Payments of the Agreement to read in its entirety as follows:

                      "Notwithstanding  anything  herein  to  the  contrary,  no
                  termination  of this  Agreement or any Circuit shall affect or
                  reduce   Lessee's   obligation   to  make   the   "Take-or-Pay
                  Commitment"  payments required by Section 1; other than as set
                  forth in Section 1. Scope and Rates above."

                  3. The first  sentence of Section 3. Term of the  Agreement is
hereby amended to read in its entirety as follows:

                      "The term of this  Agreement  shall commence upon the date
                  hereof and shall  continue  until the later of: (i) the end of
                  the  Take-or-Pay  Commitment  Period;  and (ii) the end of the
                  Circuit Lease Term of the Circuit  ordered  hereunder which is
                  last to expire."

                  4. The definition of "Take-or-Pay  Commitment" is hereby added
to the end of Section 6. Definitions of the Agreement to read in its entirety as
follows:

                      "Take-or-Pay  Commitment"  shall mean,  with  respect to a
                  certain  period and amount,  that Lessee has the obligation to
                  pay for Service hereunder in such amount for each month during
                  such period,  whether or not such Service is used. Charges for
                  Services  other than DS-0,  DS-1,  DS-3,  OC type services and
                  monthly  recurring  ancillary  services (such as installation,
                  local  loops and any  other  services)  shall  not be  counted
                  toward the Take-or-Pay Commitment."

                  5. The Non-Recurring Charge for New Order Installation of each
On-Net DS-3 as set forth in Exhibit B of the Agreement is hereby  increased from
* to * and the  following  paragraph  is hereby added to the end of Exhibit B to
read in its entirety as follows:

                      "For purposes of this Exhibit B, "Configuration" means the
                  relative  arrangement,  Phases,  or  connection  pattern  of a
                  circuit and its subcomponent parts/objects;  "Reconfiguration"
                  means any change from

                                       3

<PAGE>

                  the  original  configuration  of a  circuit  specified  in  an
                  original Marketing Service Order;

                      "Cross Connect" means a point in a network where a circuit
                  is connected  from one facility to another by cabling  between
                  the equipment.

                  6. Exhibit D of the Agreement is hereby amended to read in its
entirety as set forth in Exhibit D hereto.

                  7.  Exhibit  E hereto  is  hereby  added to the  Agreement  as
Exhibit E thereto.

                  8. This  Amendment is effective as of the Amendment  Effective
Date.

                  9. To the extent amended hereby, this Amendment supersedes the
Agreement  and any prior  written or oral  agreement  between the  parties  with
respect to the subject matter  contained in this Amendment.  All other terms and
conditions of the Agreement not specifically amended herein shall remain in full
force and effect.

                  IN WITNESS WHEREOF, the parties have executed this Amendment.
<TABLE>
<CAPTION>
<S>                                                           <C>
IXC CARRIER, INC.                                             DIAMOND.NET, I.S.P., INC.

By:   /s/ John R. Flemming                                   By:  /s/ Andrew Gladney
    -------------------------------------------------            -------------------------------------------------
Name:     John R. Flemming                                   Name:   Andrew Gladney
     ------------------------------------------------              ------------------------------------------------
Title:    Executive Vice President                           Title:  President & CEO
      -----------------------------------------------               -----------------------------------------------

- -----------------------------------------------------         -----------------------------------------------------
</TABLE>


Approved as to form Legal dept.

                                       4
<PAGE>
<TABLE>
<S>                                          <C>                                  <C>
                                                                                   --------------------------------
Req'st Svc. Date:                                     EXHIBIT A                            OFFICE USE ONLY
                  ----------------                IXC CARRIER, INC.
      Accepted Earlier Activation:            MARKET SERVICE ORDER (MSO)              MSO#
Y       N                                                                                   -------------------
 ------  ----------                                                                --------------------------------
Ckt ID:
        ----------------------

                                PURCHASE ORDER FORM FOR CUSTOMER ORDER NO:
                                                                           ----------------------

Pursuant to the DIGITAL SERVICE AGREEMENT by and between IXC CARRIER, INC.
As LESSOR and                                                                                            as LESSEE,
              ------------------------------------------------------------------------------------------
dated              ,  19  ,  LESSEE orders and LESSOR shall provide the following Digital Transmission Service:
       ------------     --

   New                      Renew                                  Qty        Rate       Term           Miles
           ---------------             --------------
   Cancel                   Disconnect                 DS-3
           ---------------             --------------           ----------  ---------  ----------  ----------------
   Change                   Expedite   Y      N        DS-1
           ---------------              -----  ------           ----------  ---------  ----------  ----------------
   On Net                   Off Net                    DS0
           ---------------             --------------           ----------  ---------  ----------  ----------------
   Protocol                 Reconfigure                CIF
           ---------------             --------------           ----------  ---------  ----------  ----------------
   Other                                               Other
           ------------------------------------------           ----------  ---------  ----------  ----------------

   Customer Contact:                                   Phone #:                        Fax #
                    ---------------------------------          ----------------------        ----------------------
   Technical Contact:                                  Phone #:                        Fax #
                    ---------------------------------          ----------------------        ----------------------
   CITY LOCATION A:                                    CITY LOCATION B:
                    ---------------------------------                  --------------------------------------------
- -------------------------------------------------------------------------------------------------------------------
   Special                    Switched                 Special                           Switched
           ----------                    ------------           ----------                         ----------------
   Bypass Y      N            Owner                    Bypass   Y       N                Owner
            ---    ----             -----------------             ----    -----                --------------------
   LESSOR TO PROVIDE:         CFA:       Y     N       LESSOR TO PROVIDE:                CFA:      Y       N
                                           ----  -----                                               -----   ------
   LOA:    Y      N           ASR:       Y     N       LOA:     Y      N                 ASR:      Y       N
             ----  ----                    ----  -----            ----   ----                        ----    ------
   CUSTOMER (LESSEE) TO PROVIDE:                       CUSTOMER (LESSEE) TO PROVIDE:
   LOA:    Y      N      Coordinated Convert Y    N    LOA:     Y      N       Coordinated Convert Y       N
             ----   ----                      ---  ---            ---    ---                         ----    ------
   CIF Arrangement  Y     N     CIF Attach  Y     N    CIF Arrangement  Y      N       CIF Attach  Y       N
                      ---   ---               ---  ---                    ---    ---                 ----    ------
   Special Instructions                  `                      Special Instructions
                        ------------------------------                               ------------------------------


MONTHLY LEASE RATE:                                    NON RECURRING CHARGES:
Monthly IXC Charge:     $                              Installation $                   ASR:      $
                         ----------------                           ----------------              -----------------
Eqpt. Lease Charge:     $                              Installation $                   Reconfig  $
                         ----------------                           ----------------              -----------------
Echo Canceller:         $                              Installation $                   Expedite  $
                         ----------------                           ----------------              -----------------
CIF Racks:              $                              Installation $
                         ----------------                           ----------------
CIF Power:              $                              Installation $
                         ----------------                           ----------------
Other:                  $                              Installation $
                         ----------------                           ----------------
TOTAL:                  $                              TOTAL OF NON RECURRING CHARGES:            $
                         ----------------                                                         -----------------


     Notwithstanding   anything  in  the   Digital   Service Agreement to the contrary,  (1) a security  interest in
     this  Agreement  may be granted by Lessor to any Lender and (2)  Lessor  may from time to time  assign  all its
     rights and  obligations  hereunder  with respect to any Circuits to any Affiliate.  Upon such assignment herein
     this   Agreement   shall  be  deemed  to  be   multiple agreements,  each  upon the terms  and  conditions  set
     forth herein by and between  Lessee and such  affiliate with respect to such circuit  between Lessor and Lessee
     with respect to the circuit not so assigned.


     IN WITNESS  WHEREOF,  the parties have executed this PURCHASE  ORDER on the       day of           19
                                                                                 -----        ---------   --


- ------------------------------------------------    ------------------------------------------------------------------
     LESSOR APPROVAL/TITLE                             LESSEE AUTHORIZED REPRESENTATIVE/TITLE
     (Service Provider)                                     (Customer)

                                   PLEASE FAX THIS DOCUMENT TO CUSTOMER SERVICE FAX # (512) 328-7810
- ----------------------------------------------------------------------------------------------------------------------
For Office Use Only Version 2.0    4/11/95
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>


<PAGE>

                          CUSTOMER MAINTENANCE SUPPORT

         IXC Communications,  Inc.'s  (hereinafter  referred to as IXC) standard
fees for customer  maintenance  support  services are as follows  (unless set by
precedence in a service contract):

         Maintenance  services  shall be defined as all work performed by IXC on
equipment  provided  by or on  behalf of the  Customer,  or  supervision  of the
Customer's work within IXC's terminate  facilities.  Maintenance Service charges
are not billed for troubles  found within that portion of a circuit  provided by
IXC. The following billing rates apply for these services:

                  A. * per  hour (4 hour  minimum  - if  dispatch  is  required)
Monday  through  Friday during the business hours of 8:00 a.m. - 5:00 p.m. local
time, exclusive of the following holidays:

                      New Years Day
                      President's Day
                      Memorial Day
                      Independence Day
                      Labor Day
                      Thanksgiving Day and the day after Thanksgiving
                      Christmas Day

                  B. * per hour (4 hour  minimum) for  overtime  work done after
business hours (defined above) and/or on holidays (defined above) and/or all day
on Saturdays and Sundays.

                  C. As requests for maintenance services are typically made via
telephone,  IXC  must  be  advised,  in  writing  as to the  person(s)  who  are
authorized to request service.  It is the Customer's  responsibility to keep IXC
apprised of any changes to its list of representative(s).

                  D.  To  request  technical   assistance  and  help  under  the
maintenance  services,  a call  must be made to our  Network  Control  Center at
1-800-526-2488.  This  number  should  be  used  for IXC  technical  assistance,
troubleshooting  or testing of circuits,  not for service impairment or outages.
The  person  calling  in must be on the  authorized  list in order to commit for
charges for this  technical  assistance.  If that person is not on the list, the
request cannot be accommodated.

                          1. The Network Control Center  personnel will take the
         call,  record  the  caller's  name and phone  number  along  with facts
         concerning the assistance and support  needed.  The caller will then be
         given the number of the "Assistance Ticket."

                                   Page 1 of 3

  * CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                          2. Upon completion of work, this  "Assistance  Ticket"
         will be given to IXC's  Accounting  Department,  and the customer  will
         subsequently  be billed based upon the  information  on that ticket.  A
         copy will be attached to the invoice.

                  E.  Except  for   emergencies,   IXC  technicians   cannot  be
dispatched  unless  requests  are made in  accordance  with the  above  call-out
procedure.


                                  Page 2 of 3
<PAGE>

                                    EXHIBIT E
                             DIAMONDNET DS3 CIRCUITS

<TABLE>
<CAPTION>
                                              Rate Section
        ---------------------------------------------------------------------------------------------
                                                       V&H      Banded
            City A         City B       Availability   Miles  $250k Rate    Monthly    Installation
- -----------------------------------------------------------------------------------------------------
<S>     <C>            <C>                 <C>          <C>    <C>          <C>          <C>
   P    St. Louis      Kansas City         Normal       208    *                *        $2,000
   H    Chicago        Detroit             Normal       207    *                *        $2,000
   A    Detroit        Pittsburgh          Normal       206    *                *        $2,000
   S    Pittsburgh     New York            Normal       318    *                *        $2,000
   E    New York       Philadelphia        Normal        34    *                *        $2,000
        Philadelphia   Washington, DC      Normal       124    *                *        $2,000
   1    Washington, DC Atlanta             Normal       541    *                *        $2,000
        Atlanta        Houston             Normal       702    *                *        $2,000
        Houston        Austin              Normal       144    *                *        $2,000
        Dallas         Phoenix         12/31/96 Note**  888    *                *        $2,000
        Phoenix        Los Angeles     2/28/97 Note**   359    *                *        $2,000
        Total                                                                   *

<CAPTION>
                 Rate Section                                   Billing Summary
        -----------------------------------------------------------------------------------------------------
                                                                                           Month    Month 7
            City A         City B      Month 1   Month 2   Month 3    Month 4   Month 5      6      thru 65
- -------------------------------------------------------------------------------------------------------------
<S>     <C>            <C>             <C>       <C>       <C>        <C>       <C>        <C>      <C>
   P    St. Louis      Kansas City
   H    Chicago        Detroit
   A    Detroit        Pittsburgh
   S    Pittsburgh     New York
   E    New York       Philadelphia
        Philadelphia   Washington, DC
   1    Washington, DC Atlanta
        Atlanta        Houston
        Houston        Austin
        Dallas         Phoenix
        Phoenix        Los Angeles
        Total                               *        *          *         *          *      *        *



Note:  Above rates under Phase 1 offer are provided with the following terms and conditions.
       o     Total contract term of 65 months for each circuit provided.                -------------------------------------------
       o     Billing during the first five months is *.                                 Five Months of Billing                    *
       o     Billing  from 5th month forward is Monthly  recurring  plus monthly        60 Months Amortize                        *
             amortized  amount of first five  months.                                   -------------------------------------------
       o     All circuits of Phase 1 must be ordered as a package.
       o     Normal  Availability is approximately 30 days after receipt of firm
             order.

       ** If the availability of the  Dallas-Phoenix or the Phoenix-Los  Angeles
       circuit is  unsatisfactory,  they can be deleted from this Phase  without
       penalty.

<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------

   P    Los Angeles    Santa Clara         Normal       313    *               *         $2,000
   H    Santa Clara    San Francisco       Normal        38    *               *         $2,000
   A    San Francisco  Salt Lake           Normal       598    *               *         $2,000
   S    Salt Lake      Denver              Normal       370    *               *         $2,000
   E    Denver         Kansas City         Normal       558    *               *         $2,000
        Atlanta        Miami               Normal       600    *               *         $2,000
   2    Chicago        New York            Normal       712    *               *         $2,000
        Total                                                                  *

<CAPTION>
- ---------------------------------------

   P    Los Angeles    Santa Clara
   H    Santa Clara    San Francisco
   A    San Francisco  Salt Lake
   S    Salt Lake      Denver
   E    Denver         Kansas City
        Atlanta        Miami
   2    Chicago        New York
        Total                               *     *          *         *          *          *      *

Note:  Above rates under Phase 2 offer are provided with the following terms and conditions:
 o     Total contract term of 81 months for each circuit provided.                ----------------------
 o     All circuits of Phase 2 must be ordered as a package.                      One Month of Billing *
 o     All  circuits of Phase 1 must be ordered to quantity for Phase 2 circuits. 60 Months Amortize   *
 o     Billing during first month is *.                                           ----------------------
 o     Billing from 2nd month forward is Monthly recurring plus amortized amount of first month.
 o     Normal Availability is approximately 30 days after receipt of firm order.
- -----------------------------------------------------------------------------------------------------------------------------------
* CONFIDENTIAL TREATMENT REQUESTED
</TABLE>

                                  Page 3 of 3
<PAGE>

                                    EXHIBIT D

                            List of Rates for Service
                            -------------------------

DS-0 Service                                                      *

DS-1 Service                                                      *

DS-3 Service

                         Term                  Miles          Rate per DS-0 Mile
                         ----                  -----          ------------------

       ON-NET                                 0 - 250               *
       PHASE 1         65 months
                                             251 - 500              *
       OFF-NET                              501 - 1,000             *
       PHASE 2         61 months
                                              1,000+                *

* CONFIDENTIAL TREATMENT REQUESTED

<PAGE>

<TABLE>
<CAPTION>
INSTALLED DS-0 CITIES                                                                                 OCTOBER, 1996
<S>                                      <C>            <C>                                      <C>
ARIZONA                                  NPA/NNX        TEXAS NPA/NNX
      Phoenix                            602-279              Austin                             512-389
                                                              Corpus Christi                     512-883
CALIFORNIA                                                    Dallas                             214-741
      Los Angeles                        213-622              El Paso                            915-533
      San Diego                          619-419              Fort Worth                         817-777
      Stockton                           209-463              Harlingen                          210-425
                                                              Houston                            713-224
DISTRICT OF COLUMBIA                                          San Antonio                        210-222
      Washington, DC                     202-245              McAllen                            210-632

ILLINOIS                                                VIRGINIA
      Chicago                            312-861              Norfolk                            804-622

MARYLAND                                                TOTAL DS-0 CITIES                        26
      Baltimore                          410-752
                                                        All cities are equipped for DSO services.
MICHIGAN
      Birmingham                         313-435        Additional cities will be added if cost is justified.

MISSOURI
      Kansas City                        816-221
      St. Louis                          314-231

NEW MEXICO
      Albuquerque                        505-247

NEW YORK
      New York City                      212-285

OHIO
      Dayton                             513-252

OKLAHOMA
      Oklahoma City                      405-232
      Tulsa                              918-582

PENNSYLVANIA
      Philadelphia                       215-988
</TABLE>

<PAGE>

                                    EXHIBIT C

                           ON-NET DS-1 AND DS-3 CITIES

<TABLE>
<CAPTION>
<S>                                    <C>                                       <C>
ARIZONA                                DISTRICT OF COLUMBIA                      Flint
  Phoenix  LATA 666                      Washington, D.C.  LATA 236                2001 S. Grand Traverse
    Phelps-Dodge Twr, Ste 1702             1828 L Street, N.W., Ste 260              (313)767
    2600 N. Central (602)279                 (202)833
                                                                                 Grand Rapids
  Tucson  LATA 668                     ILLINOIS                                    209 Graham, S.W.
    Arizona Bank Bldg.                   Chicago  LATA 358                           (616)235
    33 N. Stone, Suite 1610                Prudential Building
      (520)792                             130 E. Randolph, Suite 4001           Jackson
                                             (312)861                              170 W. North Street
CALIFORNIA                                                                           (517)783
  Bakersfield  LATA 734                INDIANA
    1430 Truxton Ave., Ste 730           Indianapolis  LATA 336                  Kalamazoo
      (805)327                             Merchants Bank Bldg.                    303 Mills St.
                                           11 S. Meridian                            (616)385
  Fresno  LATA 728                         Suite 1798/1799
    4605 E. Vine                             (317)637                            Lansing
      (209)486                                                                     230 South St.
                                       Southbend  LATA 332                           (517)482
  Fresno Ter                               211 West Washington St.
    Guarantee Savings                      19th Floor                            Midland
    B1171 Fulton Mall, Ste. 1201             (219)233                              1000 Jefferson
      (209)268                                                                       (517)631
                                       MARYLAND
  Los Angeles  LATA 730                  Baltimore  LATA 238                     Pontiac
    One Wilshire                           1220 S. Howard                          324 S. Saginaw
    624 S. Grand, Suite 1615                 (301)752                                (313)338
      (213)689
                                       MICHIGAN                                  Royal Oak
  San Diego  LATA 732                    Ann Arbor                                 3100 W. 14 Mile Rd.
    8933 Complex Dr.                       1615 Plymouth Rd.                         (313)435
      (619)569                               (313)994
                                                                                 Saginaw
  San Francisco  LATA 722                Battle Creek                              315 Meredith
    Metropolitan Life Bldg.                175 Main Street                           (517)771
    425 Market St, Ste 3800C                 (616)962
      (415)543                                                                 MISSOURI
                                         Bay City                                Kansas City  LATA 524
  Sunnyvale  LATA 722                      100 E. Hart                             Bank of Kansas City
    111 Uranium                              (517)667                              1125 Grand Ave., Suite 1704
      (408)739                                                                       (816) 283
                                         Detroit  LATA 340
COLORADO                                   Book Bldg. Suite 2609                 St. Louis  LATA 520
  Colorado Springs  LATA 658               1249 Washington Blvd.                   900 Walnut, Suite 220
    102 S. Tejon, Suite 780                  (313)961                                (314)231
      (719)471
                                         Detroit                               NEVADA
  **Denver  LATA 656                        1860 Gratiot Ave.                    **Las Vegas LATA 821
    Bell Building                            (313)259                              Centel Bldg, Ste 400
    931 14th Street, Ste. 622                                                      125 S Las Vegas Blvd.
      (303)572                                                                       (702)388
</TABLE>

<PAGE>

<TABLE>
<CAPTION>
<S>                                    <C>                                       <C>
NEW JERSEY                               Tulsa  LATA 538                           Harlingen  LATA 568
  Newark  LATA 224                         Lookout Mountain                          513 E. Jackson
    744 Broad Street, 3rd Floor            3500 S. 26th West Avenue                  Matz Building
      (201)824                               (918)584                                  (210)425
                                             (918)446
NEW MEXICO                                                                         Houston  LATA 560
  Albuquerque  LATA 664                PENNSYLVANIA                                  293 N. Main Street
    200 Lomas Blvd, N.W.                 Philadelphia  LATA 228                        (713)224
    13th Floor                             2401 Locust St., 2nd Floor
      (505)247                               (215)564                              Lubbock  LATA 544
                                                                                     1220 Broadway, #1901
NEW YORK                                 Pittsburgh  LATA 234                          (806)762
  New York  LATA 132                       Oliver Building
    60 Hudson St., Ste 206                 535 Smithfield St., Ste 2650            McAllen  LATA 568
      (212)285                               (412)281                                200 S. 10th Street, Suite 704
                                                                                       (210)687
OHIO                                   TEXAS
  Akron  LATA 325                        Abilene  LATA 550                         Midland  LATA 542
    1 Cascade Plaza, Ste 1950              1049 N. Third, Suite 500                  KMID-TV Studio
    Main & Bowery                            (915)675                                La Force Blvd &
      (216)535                                                                       Air Terminal
                                         Amarillo  LATA 546                            (915)561
  Cincinnati  LATA 922                     Amarillo Petroleum Bldg.
    2300 Carew Tower                       203 W. 8th, Suite 607/608               San Angelo  LATA 961
    Suite 4701                               (806)373                                36 E. Twohig, 15th Floor
    441 Vine St. (513)651                                                              (915)653
                                         Austin  LATA 558
  Cleveland  LATA 320                      621 Pleasant Valley Road                San Antonio  LATA 566
    R.F. Keith Bldg., Suite 2117             (512)389                                660 S. Santa Rosa
    1621 Euclid Ave.                                                                   (210)225
      (216)771                           Corpus Christi  LATA 564
                                           606 N. Carancahua, Ste 816              Waco  LATA 556
  Columbus  LATA 324                       Wilson Plaza                              100 S. 26th Street
    Borden Bldg., Level 2B                   (512)882                                  (817)750
    180 E. Broad St.
      614(469)                           Dallas  LATA 552                       **Priced on an Individual Case Basis (ICB)
                                           Tower of the Americas
  Dayton  LATA 328                         2323 Bryan, Suite 380
    1 National Bank Bldg.
    Suite 2220                             2223 Houston St.
    130 W. Second (513)461                 (214)954 (214)969

  Toledo  LATA 326                       El Paso  LATA 540
    319 Madison Ave., Ste 2901             El Paso National
      (419)242                             Bank Bldg.
                                           201 E. Main, Suite 1702
OKLAHOMA                                     (915)533
  Oklahoma City  LATA 536
    Liberty Tower                        Fort Worth  LATA 552
    100 N. Broadway, Ste 3020              WT Waggoner Blvd.
      (405)232                             810 Houston, Suite 1705
                                             (817)870
</TABLE>

<PAGE>


<TABLE>
<CAPTION>
                                             ANCILLARY PRICING SCHEDULE FOR ON-NET SERVICE

NON-RECURRING CHARGES                                                DS-1                    DS-3
- ---------------------                                                ----                    ----
<S>                                                                  <C>                     <C>
New Order Installation (On-Net)                                        *                      *

New Order Installation (Off-Net)                                       *                      *

DS-1 Ramp-Up per DS-O                                                  *                      *

Order Change (less than 5 business days)                               *                      *

Order Cancellation (less than 5 business days)                         *                      *

ASR (new or disconnect) (Special Access Only)                          *                      *

ASR Supplement                                                         *                      *

Order Expedite                                                         *                      *

Reconfiguration                                                      Same as install         Same as install

<CAPTION>
MONTHLY RECURRING CHARGES                                            DS-1                    DS-3
- -------------------------                                            ----                    ----
<S>                                                                  <C>                     <C>
Monthly circuit charge (IXC portion)                                    *                      *

Cross-connect charge                                                    *                      *
    Other Interexchange Carrier to Lessor local access
    or bypass facility (Lessor long haul not involved)

Local bypass charge                                                     *                      *
    Lessor POP to Lessor POP in same city, with no
    Lessor long haul attached at either Lessor POP.

<CAPTION>
MISCELLANEOUS                                                        RECURRING               NON-RECURRING
- -------------                                                        ---------               -------------
<S>                                                                  <C>                     <C>
M13 1 yr Term                                                           *                         *
    2+yr Term                                                           *                         *
    3+yr Term                                                           *                         *
ECHO CANCELLER (per circuit end)                                        *                         *
SECOND END LOOP (Ex: for ADPCM)                                         *                         *
DEMAND MAINTENANCE                                                   * /hr 8a.m.-5p.m. M-F, 4 hour minimum
                                                                     if dispatch is required;  *  /hr after hours
                                                                     with 4 hour minimum
RACK SPACE                                                           * - subject to availability
SHELF SPACE                                                          * /ea/mo              ICB install
DC POWER                                                             * /amp/mo (5 amp minimum; 5 amp
                                                                     increments)
CIF AC/DC POWER                                                      *
ALL OTHER SERVICES                                                   See Note (2)
</TABLE>

(1)   All of the above charges are subject to change with a 30-day notice.
(2)   Services  not  described  above will be  considered  special  handling and
      charges will be assessed on an individual basis.

* CONFIDENTIAL TREATMENT REQUESTED

                                                                   EXHIBIT 10.23
UUNET
An MCI WorldCom Company

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.

UUNET
AN MCI WorldCom Company

                       MASTER INTERNET SERVICES AGREEMENT

                  This Master Internet Services Agreement  ("Agreement") is made
by and between UUNET  Technologies,  Inc.,  with its  principal  offices at 3060
Williams  Drive,   Fairfax,   VA  22031  ("UUNET")  and  Savvis   Communications
("Customer") with its principal offices at 7777 N. Boonhomme,  #1000, St. Louis,
Missouri  63105 for the  purpose  of  setting  forth  the  terms and  conditions
relating  to the  purchase  of UUNET's  Internet  products  and  services by the
Eligible Participants, as defined in Section 1 below.

                  1. DEFINITIONS.  "Affiliate" means with respect to a party, an
entity  controlled by,  controlling,  or under common control with,  such party.
"Effective Date" means the effective date of this Agreement,  which shall be the
last  date  of the  signature  of a duly  authorized  representative  of a party
affixed below.

                  2. SERVICES.  The services currently  available hereunder from
UUNET and its Affiliates  ("Services") are set forth in the attached Schedule 1.
UUNET may amend  Schedule 1 from time to time to remove  Services if they should
be  discontinued or to add new services (which shall be included within the term
Services  upon such  addition)  by  providing  a revised  copy of  Schedule 1 to
Customer. Such amendments shall be prospective only, shall be effected only upon
at least six  months'  prior  written  notice and shall not affect any  existing
Service  being  provided by UUNET or its  Affiliates  to Customer at the time of
amendment.

                  3.  PRICING.  The  prices  for  Services  applicable  to  this
Agreement  (exclusive of any telco and equipment  changes,  which are Customer's
responsibility),  are  detailed in Schedule  1, and shall be  applicable  to new
services  only in the United  States and to the  Services  in effect on the date
hereof as of the date of this  Agreement  referenced  as UUNET  account  numbers
U03914,  U04418,  U04419,  U05810,  U05811,  U05814,  U05817 and U05049.  UUNETs
obligation to provision  any service  under this  Agreement and to make Services
available  at the  prices  set forth on  Schedule  1 shall be  conditioned  upon
receipt from Customer on or before the date of this  Agreement of a certified or
cashier's check in the amount of at least $475,000.00, in which case, the prices
set forth on  Schedule  1 shall be  applicable  as of April 2, 1999 Any  Service
shall  only be  available  if the  Customer  agrees  to the  standard  terms and
conditions  applicable  to  such  Service  (as  modified  by the  terms  of this
Agreement)  and commits to purchase  that  Service for at least a one-year  term
from the date of Service installation.

                  4.  FORECASTS.  Two  weeks  prior to the end of each  calendar
quarter Customer shall, based on the best available information, provide UUNET a
forecast of orders likely to be generated  pursuant to this Agreement during the
subsequent  quarter on a per Service basis.  Within two weeks of receipt of each
forecast,


                                       1
<PAGE>

UUNET shall provide to Customer  non-binding  estimated  installation  times for
such forecasted orders.

                  5. SERVICE ORDERS AND  COORDINATION.  Customer will coordinate
all orders for Services through UUNET's  designated  Account  Manager.  Customer
will enter into an Agreement  for Service  using  UUNET's  then-current  service
agreement.  Each service  agreement  shall set forth the terms and conditions of
the Service,  provided, that (a) Monthly Fees for the Service shall be set forth
in this Agreement, and (b) any service level agreements and related credit terms
set forth in such service  agreement  shall not apply to any Services under this
Service Agreement.

                  6. TERM.  The initial  term of this  Agreement  shall be three
years from the Effective Date. Thereafter, this Agreement shall be automatically
renewed for  additional  one (1) year terms,  provided  that  neither  party has
delivered  to the  other  a  written  notice  of  intent  not to  renew  for the
forthcoming term not less than 60 days in advance of the end of the then-current
term.  Customer may  terminate  any Service if the Service fails to meet for any
three-month  consecutive  period  the  Latency  Guarantee  set forth in  UUNET's
Service  Level  Agreement,  as in  effect  from  time to time and  available  at
www.uunet/customers/sla/terms.html  after Customer provides UUNET at least sixty
60 days' written notice of such intention to terminate and the Latency Guarantee
is not met for at least thirty 30 days during such 60-day period.

                  7. LIMITATION OF LIABILITY.  NOTWITHSTANDING  ANYTHING ELSE TO
THE CONTRARY STATED OR IMPLIED HEREIN OR IN ANY SERVICE AGREEMENT, NEITHER PARTY
SHALL  HAVE ANY  LIABILITY  TO THE  OTHER  PARTY  WHATSOEVER  FOR ANY  INDIRECT,
INCIDENTAL,  CONSEQUENTIAL,  PUNITIVE,  OR SPECIAL  DAMAGES,  INCLUDING  WITHOUT
LIMITATION, LOSS OF PROFIT, LOSS OF REVENUE, OR LOSS OF BUSINESS SUFFERED BY THE
OTHER OR BY ANY  ELIGIBLE  PARTICIPANT,  ASSIGNEE,  OR OTHER  TRANSFEREE  OF THE
OTHER. EVEN IF INFORMED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES.

                  8.  ACCEPTABLE  USE.  UUNET's  Services  may  only be used for
lawful purposes. Use of any Service must comply with the then-current version of
the UUNET Acceptable Use Policy  ("Policy") for the country in which the service
is provided,  available at the following  URL:  www.uunet/usepolicy,  and in the
event no Policy is available for that country the U.S. policy shall apply. UUNET
reserves  the right to change  the  Policy  from  time to time,  effective  upon
posting of the revised  Policy at the URL.  UUNET  reserves the right to suspend
the Service or terminate this Agreement effective upon notice for a violation of
the Policy.

                  9. INVOICING AND PAYMENT.  UUNET will invoice Customer for the
Service  ordered by  Customer  in  accordance  with the terms of the  applicable
service


                                       2
<PAGE>

agreement,  provided,  that in addition to the early cancellation fees set forth
therein,  Customer shall pay an additional  cancellation fee equal to telco fees
for a sixty (60) day period if UUNET has ordered the  applicable  telco circuit.
Customer will make payment for such Service in accordance  with the terms of the
applicable service agreement.

                  10. PUBLICITY.  Neither party shall publicize the existence of
this Agreement  without the written consent of the other.  Neither party may use
the name,  logo,  trademarks,  service marks, or other  proprietary  identifying
symbols of the other party in any  advertising,  signage,  marketing  materials,
brochures,  or any other  materials  in any  medium  without  the other  party's
express  advance  written  consent.  Any such permitted use shall be only within
guidelines  provided by such party. UUNET has approved the use of Customer's map
sent on May 25, 1999, by Customer to UUNET depicting UUNET's Services.  Customer
may revise such maps and may use such maps in its marketing materials, each in a
manner  consistent with UUNET's  approval without seeking UUNET approval of each
revision.  Any  change in the  manner or  description  of such  depiction  shall
require  prior  written  approval  by UUNET.  Changes in port speeds and circuit
locations shall not require UUNET approval.  Neither party shall issue any press
release, announcement, or public statement with respect to this Agreement or the
other party without the other  party's  express  advance  written  consent.  Any
breach of this Section shall be a material breach of this Agreement constituting
cause for termination.

                  11. CONFIDENTIALITY. The terms of this Agreement shall be held
confidential  by each party,  as shall each party's  confidential or proprietary
information  ("Confidential  Information").  The prices set forth in Schedule 1,
and any non-public data provided by UUNET to Customer  regarding  performance of
the UUNET network shall be deemed UUNET Confidential Information.  Neither party
shall  disclose the other  party's  Confidential  Information  to third  parties
without the other party's written consent,  except as permitted pursuant to this
Section. Each party shall disseminate the other party's Confidential Information
among its  employees,  Affiliates,  or agents only on a  need-to-know  basis and
shall use such Confidential  Information only for the purposes of performing its
obligations  hereunder.  To the extent a party is  required by  applicable  law,
regulation,  government agency or court order, subpoena, or investigative demand
to disclose  the  existence  or terms of this  Agreement,  or the other  party's
Confidential  Information,  such  party  shall  use its  reasonable  efforts  to
minimize such  disclosure  and to obtain an assurance  that the recipient  shall
accord confidential treatment to such Confidential Information, and shall notify
the other party  contemporaneously  of such  disclosure.  Either  party,  in its
discretion,  may  terminate  this  Agreement for cause upon ten days' notice and
without  penalty in the event of any breach of this Section.  The obligations in
this Section 11 shall survive termination or expiration of this Agreement for an
additional period of two years.

                  12.  GENERAL.  This  Agreement  may not be  assigned by either
party without the prior written consent of the other, which consent shall not be
unreasonably withheld,  conditioned, or delayed; provided, that either party may
assign or transfer  this  Agreement to any  Affiliate of such party upon advance
written  notice to the other  party.  No failure on the part of either  party to
exercise,  and no delay in  exercising,  any  right or  remedy  hereunder  shall
operate as a waiver  thereof;  nor shall any single or partial  exercise  of any
right or remedy hereunder  preclude any other or further exercise thereof or the
exercise of any other right or remedy  granted  hereby or by law. This Agreement
supersedes  all  prior  or  contemporaneous   representations,   agreements,  or
understandings  concerning  the  subject  matter  hereof.  If any  term  of this
Agreement,  or application of such term to any person or circumstance,  shall be
held invalid,  the remainder of this Agreement,  or the application of such term
to persons or circumstances other than those to which it is held invalid,  shall
not be affected thereby.


                                       3
<PAGE>

/s/ Robert McCormick                          /s/ Clint Heiden
- ---------------------------------             ------------------------------
Customer Authorized Signature                 UUNET Authorized Signature


Robert McCormick                              Clint Heiden
- ---------------------------------             ------------------------------
Printed Name                                  Printed Name


EVP/CTO                                       VP SALES
- ---------------------------------             ------------------------------
Title                                         Title


5/27/99                                       6/4/99
- ---------------------------------             ------------------------------
Date                                          Date


                                       4
<PAGE>

                         SCHEDULE 1: PRICING OF SERVICES

The  Monthly  Fees  set  forth  below  do not  apply  to any  equipment  charges
(including without limitation, routers, CSUs/DSUs, and firewall hardware), telco
installation  and line  charges,  or any other charges not included in the UUNET
Monthly Fee for a Service specified herein.


Dedicated Access Services

          Service          Start-up Charge           Monthly Fee(1)

          T-3                    N/A                      *

          OC-3                   N/A                      *


Equipment(1)
UUNET will provide  Customer  with a   *    discount off Cisco list price on any
Cisco equipment  offered by UUNET for resale and ordered from UUNET by Customer.
UUNET will provide  Customer with a   *    discount off published  list price on
any other  equipment  offered  by UUNET for  resale  and  ordered  from UUNET by
Customer.


- --------
(1) For Burstable  OC-3  services:  if actual usage is under 90 Mbps the Monthly
Fee shall be     *    , and if equal to or over 90 Mbps the Monthly Fee shall be
    *    . The Monthly Fees and discounts on equipment sales set forth above are
conditioned  upon  (a)  Customer's  order,  effective  upon  execution  of  this
Agreement by Customer, of OC-3 or, at Customer's option, full 45 Mbps T-3 leased
lines and (b) Customer's  commitment,  effective  upon 30 days after  Customer's
execution  of this  Agreement,  to have on order or in service an  aggregate  of
sixteen  (16) 45 Mbps  equivalents  with at  least  one-year  terms  under  this
Agreement.  If Customer fails to order and maintain such  Services,  the Monthly
Fee for T-3 leased line Service currently in effect shall be as set forth in the
service  agreements in effect as of the date hereof and any additional  Services
shall be at UUNET's list prices in effect as of the Service order date. There is
no maximum number of circuits that Customer may order under this Agreement.



                                       1
* CONFIDENTIAL TREATMENT REQUESTED


                                                                   EXHIBIT 10.24

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.



                     INTERNETMCI DEDICATED ACCESS AGREEMENT
                             FOR FULL RATE DS3 (ICB)

MCI  Telecommunications  Corporation ("MCI") will provide and Customer will take
internetMCI Dedicated Access Service on the terms contained in Attachments 1, 2,
3, 4, and 5 of this cover sheet (this cover sheet and such Attachments  referred
to collectively as the "Agreement"). Note: all correspondence should include the
entire account team and point of contact.

   ** The address for Contract Administration for Cindy Andreotti's regions is:

                           MCI
                           Contract Administration
                           Attention:  Justin Schlifkin
                           6 Concourse Parkway
                           Suite 1000
                           Atlanta, GA  30328

   ** The  address  for  Contract  Administration  for Vince  Corica's  regions,
      Government Markets and International Orders is:

                           MCI
                           Contract Administration
                           Attention:  Stacy Poppell
                           6 Concourse Parkway
                           Suite 1000
                           Atlanta, GA  30328

SAVVIS COMMUNICATIONS
- -------------------------------           networkMCI, INC.
CUSTOMER NAME
 7777 BONHOMME, SUITE 1000                MCI Telecommunications Corporation
- -------------------------------           Business Markets Headquarters
STREET ADDRESS                            Three Ravinia Drive
ST. LOUIS, MO 63635                       Atlanta, Georgia  30346
- -------------------------------
CITY/STATE/ZIP
/s/ Gary Zimmerman                           /s/ Justin Schlifken
- -------------------------------             ----------------------------------
CUSTOMER SIGNATURE                          AUTHORIZED MCI SIGNATURE
Gary Zimmerman, VP Network Ops               Justin Schlifkin
- -------------------------------             ----------------------------------
PRINT NAME AND TITLE                        PRINT NAME AND TITLE
3/24/98                                      4/16/98
- -------------------------------             ----------------------------------
CUSTOMER SIGNATURE DATE                     MCI ACCEPTANCE DATE

Notice:  This  Agreement will not go into effect until executed by both Customer
and MCI. This offer is subject to MCI's credit approval of Customer.


<PAGE>

                                  ATTACHMENT 1

                internetMCI DEDICATED ACCESS SERVICE DESCRIPTION

1.       OVERVIEW.

         MCI's  internetMCI  Dedicated  Access  Service  is a suite of  Internet
         access services that can be integrated with its existing  business long
         distance services. At the originating customer premises, the customer's
         equipment  places data into  Internet  Protocol  (IP) packets and gives
         each packet a  terminating  address.  MCI routes  registered IP packets
         over  the  MCI  IP  backbone  to  the  terminating  Internet  location.
         internetMCI  Dedicated  Access  is  available  at  speeds up to 45 Mbps
         (where access is available).

2.       TECHNICAL DESCRIPTION.

         MCI's Internet  Protocol (IP) backbone is a  packet-switched  interLATA
         data transport service comprised of dedicated 622 Mbps digital circuits
         connected  in a  mesh  topology  and  based  on  the  TCP/IP  suite  of
         protocols:  the Internet  standard.  IP provides a connectionless  data
         transfer service operating as layer three of the OSI reference model.

3.       ACCESS.

         Customers   currently   obtain  dedicated  access  to  internetMCI  via
         dedicated digital  facilities or via logical permanent virtual circuits
         (PVC) available as part of MCI's HyperStream Frame Relay service.

4.       AVAILABILITY.

         internetMCI  Dedicated  Access  Service is  available  nationwide  from
         cities listed in MCI Tariff FCC No. 1, Section C.12,  Table IV, Part A,
         as amended from time to time, or any successor tariff, unless otherwise
         specified.


[END OF ATTACHMENT 1]


                                     - 2 -
<PAGE>

                                  ATTACHMENT 2

                              TERMS AND CONDITIONS


1.  CHARGES:  You agree to pay all  applicable  charges for the Internet  access
service  ordered on the attached Cover Sheet (the  "Service").  Charges shall be
invoiced  monthly and are due 30 days net. Amounts not paid within 30 days after
the date of the  invoice  will be  considered  past due.  Prices do not  include
applicable  taxes,  for which you are  responsible.  Rates  and  charges  may be
changed  by MCI per  the  terms  of  Attachment  3,  and  you  agree  to pay any
additional charges which may result. If the Service becomes tariffed, the tariff
will supersede any conflicting provisions of this Agreement.

MCI may require, in MCI's sole discretion, alternate or additional security from
Customer.  Customer's  failure or refusal to comply with such  requirement  upon
MCI's request  therefore may result in the  cancellation  of this  Agreement and
Customer's  service for cause.  At MCI's request,  you shall provide a letter of
credit or provide a security  deposit to assure payment.  Letters of credit must
be  irrevocable  to be  acceptable  as  security  deposits.  MCI may reject such
letters of credit if they contain any conditions  which MCI finds  objectionable
in MCI's sole  discretion.  MCI shall release any letter of credit or return any
security  deposit  within  thirty (30) days after the later of: (a) the customer
terminating  service with MCI, and, (b) the customer  satisfying all outstanding
invoices and indebtedness shown on MCI's books and records of account.

2. TERM AND  TERMINATION:  The service  term begins when MCI's  circuit has been
fully installed and tested and the Service is available for your use, regardless
of the status of your  equipment.  The term of the  Service  ("Term")  is as set
forth in Attachment 3 and  automatically  shall renew for successive thirty (30)
day Terms at MCI's then-current month-to-month rates, regardless of the original
Term,  unless  either party  provides  the other thirty (30) days prior  written
notice  that it does not wish to renew.  You may  terminate  Service  on 30 days
prior written  notice and will be liable for any  applicable  early  termination
charges.  MCI may suspend or  terminate  Service if you  materially  breach this
Agreement,  including  failure  to pay for any past  due  amounts  for  invoiced
services as set forth in Section 1 above,  and do not cure such breach  within 3
days (72 hours) of notice;  provided, that MCI may terminate immediately without
notice in order to prevent  damage to or  degradation  of its  Internet  network
integrity which may be caused by the Customer or anyone using Customer's access,
or to  comply  with any law,  regulation,  court  order,  or other  governmental
request  order which  requires  immediate  action,  or for a violation  of MCI's
Policy Against  Spamming or for other behavior that in MCI's sole discretion may
be deemed to be illegal,  or otherwise to protect MCI from legal liability.  MCI


                                     - 3 -
<PAGE>

will endeavor to give Customer notice regarding the reason(s) for termination as
soon as reasonably practicable after such termination.

3.  RIGHTS  AND  OBLIGATIONS  OF  CUSTOMER:  You  shall at your own  expense  be
responsible for all site  preparation  activities  necessary for installation of
the  Service.  You shall give MCI and its  suppliers  reasonable  access to your
premises at all  reasonable  times.  You shall not use the Service or permit any
use of the Service which is illegal,  unlawful,  or harassing,  which  infringes
upon another's  intellectual  property  rights,  or which otherwise  constitutes
network abuse,  and you shall be responsible for any such misuse of the Service.
You shall indemnify MCI and its affiliates  against any liabilities  incurred by
them as a  result  of such  misuse.  You  also  will  pay to MCI the  reasonable
attorneys  fees and  costs,  including  allocable  costs  of in  house  counsel,
incurred  by MCI in  enforcing  this  Agreement.  You shall be  responsible  for
communicating  with  your  own  users  of the  Service,  and  for  handling  all
complaints  and  trouble  reports  made by such  users.  You  must  comply  with
reasonable  security  procedures  and standards with respect to your own routers
that interface with the Service. MCI may communicate security issues to you from
time to time when abuse or misuse is observed or reported by others.

4.  EQUIPMENT  AND  SOFTWARE:  MCI  is not  responsible  for  the  installation,
maintenance,  compatibility  or  performance  of any  equipment  or software not
provided by MCI,  and you shall  indemnify  MCI and its  affiliates  against any
infringement  claims arising out of such third party  equipment or software with
the Service. If such third party equipment or software impairs the Service,  you
remain liable for payment,  and if such third party equipment is likely to cause
hazard or service  obstruction,  you shall  eliminate  such  likelihood at MCI's
request. MCI will troubleshoot difficulties caused by such third party equipment
or software at your request, at MCI's standard rates and terms. In the event you
provide any router to interface with the Service, you must cooperate with MCI in
configuring  and managing  such  router(s) in order to implement and operate the
Service.

5.  SERVICE  OBJECTIVES:  In providing  the  Service,  MCI will use its diligent
efforts to meet the service  objectives  as  specified  in  Attachment  5 hereto
(Service Level Agreement).

6. MCI OBLIGATIONS; DISCLAIMER OF WARRANTIES: MCI shall operate and maintain the
Service,  contingent  upon  MCI's  ability to  maintain  necessary  licenses  or
permissions  and  MCI's  network  capacity  and  connection  availability.   You
understand  that,  except for certain  services  specifically  identified as MCI
services,  MCI does not  operate  or control  the  Internet.  YOU  ASSUME  TOTAL
RESPONSIBILITY  FOR YOUR AND  YOUR  USERS'  USE OF THE  INTERNET.  MCI  MAKES NO
EXPRESS OR IMPLIED  WARRANTIES,  REPRESENTATIONS  OR ENDORSEMENTS  REGARDING ANY
MERCHANDISE,  INFORMATION,  PRODUCTS OR SERVICES  PROVIDED THROUGH THE INTERNET.
THE


                                     - 4 -
<PAGE>

SERVICE IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF
ANY KIND, EXPRESS OR IMPLIED,  INCLUDING BUT NOT LIMITED TO WARRANTIES OF TITLE,
NONINFRINGEMENT  OR IMPLIED  WARRANTIES  OF  MERCHANTABILITY  OR  FITNESS  FOR A
PARTICULAR PURPOSE. NO ADVICE OR INFORMATION GIVEN BY MCI'S EMPLOYEES, AGENTS OR
CONTRACTORS  SHALL  CREATE A  WARRANTY.  MCI has no  obligation  to monitor  the
Service;  however,  MCI may monitor the Service and disclose  information gained
from  such  monitoring  in  order  to  satisfy  any  law,  regulation  or  other
governmental request, to operate the Service and administer MCI's network, or to
protect itself or its  subscribers.  MCI reserves the right to refuse to post or
to remove any  information or materials,  in whole or in part,  that in its sole
discretion are unacceptable,  undesirable, or in violation of this Agreement. In
no event  shall MCI be deemed  liable for any  failure or delay due to any cause
beyond MCI's control.

7. LIMITATION OF LIABILITY:  UNDER NO CIRCUMSTANCES  SHALL MCI BE LIABLE FOR ANY
INDIRECT,  INCIDENTAL,  SPECIAL,  PUNITIVE OR CONSEQUENTIAL  DAMAGES THAT RESULT
FROM YOUR OR YOUR USERS' USE OF OR  INABILITY TO ACCESS ANY PART OF THE INTERNET
OR  YOUR  OR  YOUR  USERS'  RELIANCE  ON OR  USE  OF  INFORMATION,  SERVICES  OR
MERCHANDISE  PROVIDED ON OR THROUTH THE SERVICE,  OR THAT RESULT FROM  MISTAKES,
OMISSIONS,  INTERRUPTIONS,  LOSS, THEFT, OR DELETION OR FILES, ERRORS,  DEFECTS,
DELAYS IN OPERATION, OR TRANSMISSION,  OR ANY FAILURE OF PERFORMANCE. If you are
dissatisfied with the Service or these Terms and Conditions, your sole remedy is
to terminate this Agreement.

8. DOMAIN NAME REGISTRATION;  EQUIPMENT:  At your request and expense, MCI shall
assist in the  registration of your domain name(s),  provided that you represent
and  warrant  to MCI that any name you  submit to MCI  and/or  the  domain  name
authority for  registration  and all  intellectual  property  rights therein are
owned exclusively by you, or that you have all necessary rights to register such
name,  and you agree to  indemnify  MCI against all losses  incurred by MCI as a
result  of a breach of this  warranty.  MCI  shall  not be  responsible  for its
inability to register  any domain  name(s).  At your  request and expense,  MCI,
where permitted, shall also assist you in procuring equipment in connection with
your use of the Service.  The parties  shall enter into a separate  agreement to
govern the terms of any such procurement activity.

9. NONDISCLOSURE: As used in this Agreement, the term "Confidential Information"
shall mean any information of a party disclosed by one party to another pursuant
to this  Agreement  which is in written or other  tangible  form  (including  on
magnetic media) or by oral, visual or other means, which is or reasonably should
have been  understood  by the  recipient  (the  "Receiving  Party"),


                                     - 5 -
<PAGE>

because of legends or other  markings,  the  circumstances  of disclosure or the
nature of the information itself, to be proprietary and confidential,  including
without  limitation this Agreement itself.  Each party recognizes the importance
of the Confidential Information.  Accordingly, each party agrees as follows: (a)
The Receiving  Party agrees (i) to protect such  Confidential  Information  from
disclosure  to others,  using the same  degree of care used to  protect  its own
confidential  or  proprietary  information of like  importance,  but in any case
using no less than a reasonable  degree of care,  (ii) not to disclose except as
specifically  permitted  hereunder any of the  Confidential  Information  or any
information  derived  therefrom to any third person except to its Affiliates and
contractors under a  confidentiality  obligation to the Receiving Party which is
no less  restrictive than that contained  herein,  and (iii) not to make any use
whatsoever  at any time of such  Confidential  Information  except as  expressly
authorized in this Agreement. Any Affiliate, employee, agent or contractor given
access to any such  Confidential  Information  must have a  legitimate  "need to
know" and shall be  similarly  bound in writing.  Without  granting any right or
license,  the parties agree that the  foregoing  shall not apply with respect to
information  the Receiving  Party can document (i) is in or (through no improper
action or inaction by the Receiving  Party or any  affiliate,  agent or employee
thereof) enters the public domain,  or (ii) was in its possession or known by it
prior to receipt from the disclosing party, or (iii) was rightfully disclosed to
it by another person without restriction, or (iv) was developed independently by
it without use of the Confidential Information. (b) Immediately upon termination
of this Agreement, the Receiving Party will return or, at the disclosing party's
direction,  destroy and certify the destruction of all Confidential  Information
and all documents and media containing any such Confidential Information and all
copies  and  extracts  thereof.  (c)  Either  party  may  disclose  the  other's
Confidential   Information  as  required  by  law.  (d)  Each  Receiving   Party
acknowledges  and  agrees  that due  tothe  unique  nature  of the  Confidential
Information,  there  can be no  adequate  remedy  at law for any  breach  of the
obligations  hereunder,  that any such breach will allow the Receiving  Party or
third parties to unfairly compete with the disclosing  party, and will result in
irreparable harm to the disclosing party and therefore that upon any such breach
or any threat  thereof,  the  disclosing  party shall be entitled to appropriate
equitable relief in addition to whatever remedies it might have at law and under
this Agreement.

10.  MISCELLANEOUS:  All notices  required  or  permitted  hereunder  must be in
writing,  delivered  personally or by U.S.  mail,  facsimile or electronic  mail
(followed by hard copy, in the case of fax or email) to the respective signatory
and notice  addresses set forth on the Cover Sheet,  or such other person and/or
address as a party may  notify the other from time to time,  and shall be deemed
effective upon receipt.  Any dispute  relating to this Agreement which cannot be
resolved by  negotiation  shall be settled by binding  arbitration in accordance
with  the  J.A.M.S./ENDISPUTE   Arbitration  Rules  and  Procedures  ("Endispute
Rules"), as amended by this Agreement.  The costs of arbitration shall be shared
equally by the


                                     - 6 -
<PAGE>

parties unless the arbitration award provides  otherwise.  Each party shall bear
the cost of  preparing  and  presenting  its case.  The  parties  agree that the
arbitrator's  authority to grant  relief  shall be subject to the United  States
Arbitration  Act,  9  U.S.C.  1-16  et seq.  ("USAA"),  the  provisions  of this
Agreement,  and the  ABA-AAA  Code  of  Ethics  for  Arbitrators  in  Commercial
Disputes. The arbitrator shall have no power to make any award that provides for
punitive or exemplary damages. The arbitrator's  decision shall follow the plain
meaning of the relevant documents, and shall be final and binding. The award may
be confirmed and enforced in any court of competent jurisdiction. All post-award
proceedings  shall be  governed  by the USAA.  If the  Customer  resells  access
provided  pursuant to this  Agreement,  Customer shall insure that its customers
abide by the terms of this Agreement  (including but not limited to MCI's Policy
against Spamming), and Customer shall not make any representations,  warranties,
or indemnities  inconsistent  with the terms of this  Agreement.  This Agreement
shall be binding upon and inure to the benefit of the  successors  and permitted
assigns of the parties hereto. Neither this Agreement, nor any of your rights or
obligations  herein shall be  transferable  or  assignable  by you without MCI's
prior  written  consent and any attempted  transfer or assignment  hereof not in
accordance  herewith  shall be null and void.  In the event that any  portion of
this Agreement is held to be unenforceable,  the unenforceable  portion shall be
construed in accordance with applicable law as nearly as possible to reflect the
original  intentions  of the parties and the remainder of the  provisions  shall
remain in full  force and  effect.  Either  party's  failure  to insist  upon or
enforce  strict  performance  of any  provision of this  Agreement  shall not be
construed as a waiver of any  provision or right.  Neither the course of conduct
between  parties nor trade  practice  shall act to modify any  provision of this
Agreement.  This Agreement shall be governed by and construed in accordance with
the laws of the  State of New  York,  without  regard  to its  conflicts  of law
provisions. Any cause of action you may have with respect to the Service must be
commenced  within one (1) year after the claim or cause of action arises or such
claim or cause of  action is  barred.  This  Agreement  constitutes  the  entire
agreement  between  you and MCI with  respect to the Service and can be modified
only in writing by the parties hereto.

11. USE OF MCI'S NAME/MARKS:  Neither party may use the other's name, trademark,
tradenames or other  proprietary  identifying  symbols without the prior written
approval of the other party. In Customer's use of the Service provided hereunder
and in the  provision  of services by  Customer to its own  customers,  Customer
shall not:  (i) use any  service  mark or trade mark either of MCI or any of its
affiliated  companies  or of which MCI or any of its  affiliated  companies is a
licensee,  or (ii) refer to MCI or any of its affiliated companies in connection
with any product, equipment,  offering, promotion, service or publication of the
Customer  or of a third  party on  behalf  of or with the  authorization  of the
Customer,  without the  written  approval  of MCI and its  pertinent  affiliated
company.  Customer  agrees  that:  (i) any use of MCI  mark(s)  by it is for the
benefit of MCI; (ii) all good will


                                     - 7 -
<PAGE>

resulting  therefrom  vests solely in MCI; and (iii)  Customer will neither have
nor make any claim in or to such mark(s).

         A violation of this Section shall  constitute a material breach of this
Agreement.  Any cure of such breach must be to MCI's  independent  satisfaction.
Notwithstanding  anything herein to the contrary,  MCI shall be entitled to seek
injunctive relief in enforcement of this Section.

[END OF ATTACHMENT 2]


                                     - 8 -
<PAGE>
                                  ATTACHMENT 3


internetMCI DEDICATED ACCESS RATES, CHARGES AND DISCOUNTS

I.       CONNECTION ORDERED PER THIS ATTACHMENT

         1.       Customer Name: SAVVIS Communications Corporation
         2.       Billing ID:  02049338
         3.       Circuit ID or PVC#:  itx96393-0001
         4.       Served Location (City, State): Santa Clara, CA
         5.       Served Location NPA-NXX:  408-496
         6.       Transmission Rate of Connection :  45Mbs
         7.       Access Method (Dedicated Access, Frame Relay): Dedicated
                  Access

II.      RATES AND CHARGES

         A.       LOCAL LEASED ACCESS LINE CHARGES.

                  Local Leased  Access Lines:  This  Agreement  incorporates  by
                  reference  the  terms  and   conditions  of  MCI's  filed  and
                  effective tariffs,  as amended from time to time in accordance
                  with law,  including all installations,  reconfiguration,  and
                  monthly  recurring  rates for any  applicable  local  channel,
                  central office connection,  and access  coordination  charges.
                  These  charges  are in  addition  to the  Network  Connections
                  Pricing set forth in Section II(B) below.  Access Pricing Plan
                  (APP)  discounts  having  the  same  term as the  Term of this
                  Agreement are  available,  subject to the terms and conditions
                  of the  applicable  APP.  The  Access  Pricing  Plan  must  be
                  separately  applied  for, and is not subject to, or a part of,
                  the terms and conditions of this Agreement.

         B.       NETWORK CONNECTIONS PRICING.

                           MCI   provides   Dedicated   Private   Line   Channel
                           connections  for  the   internetMCI   Full  Rate  DS3
                           service.  Additionally,  the charges  below apply for
                           the  connectivity of the Full Rate DS3 service to the
                           internetMCI network.

                  1.       Installation Charges:   *   for all connection speeds

                  2.       Reconfiguration Charges:   *   per occurrence


                                     - 9 -
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                  3.       Monthly  Recurring  Charges.  Check  box to  indicate
                           understanding of the rates.

                  [ ] Full Rate DS3 (ICB Only)
                  For Full Rate DS3,  the  Customer  will  receive  the  monthly
                  recurring rate that  corresponds to the average  monthly usage
                  tier (as  measured  in  Megabits  per  second)  at  which  the
                  Customer's   actual   monthly   usage   qualifies.   For   the
                  provisioning  of the Full Rate DS3 Service it is required that
                  the customer have a Digital Link 3100 DSU/CSU:


<TABLE>
<CAPTION>
                         Average Monthly Usage                            Monthly Recurring Charge
                         ---------------------                            ------------------------
<S>                                                                               <C>
                             0 - 1.5 Mbps                                             *
                          1.51 - 3.0 Mbps                                             *
                          3.01 - 4.5 Mbps                                             *
                          4.51 - 6.0 Mbps                                             *
                          6.01 - 10.0 Mbps                                            *
                         10.01 - 15.0 Mbps                                            *
                         15.01 - 45.0 Mbps                                            *
</TABLE>

                  The  Full  Rate  DS3  connection  charge  is  based  upon  the
                  Customer's  average  monthly  utilization  of the  connection.
                  Average  Monthly  Utilization is defined as the greater of the
                  average  traffic  into  or  out  of  the  port  connection  as
                  expressed  as a  percentage  of  the  total  capacity  of  the
                  connection.  Traffic is  measured  in five  minute  intervals,
                  which  are  averaged  monthly  to  arrive  at the  appropriate
                  monthly  usage tier.  The  Customer  will be  provided  with a
                  monthly utilization report upon request.

                  New MCI connections will be billed for the first two months of
                  service at the pricing  associated  with the lowest usage tier
                  set forth in the table.  Existing MCI Customers will be billed
                  for the one month at the pricing associated with their Average
                  Monthly  Utilization  during the  monthly  period  immediately
                  preceding the commencement of the Term of this Agreement.  The
                  Customer's  inbound  and  outbound  traffic  will be  measured
                  during  the  first  two  months,  and  the  Customer  will  be
                  reassigned  in the third month to the usage tier  commensurate
                  with their Average Monthly  Utilization for the prior usage of
                  two months past. At the end of any monthly  measurement period
                  in which the Customer's  Average  Monthly Usage falls below or
                  exceeds  the usage  associated  with its  assigned  tier,  the
                  Customer will be reassigned  to a new tier  commensurate  with
                  their Average Monthly Utilization.


                                     - 10 -
* CONFIDENTIAL TREATMENT REQUESTED
<PAGE>

                  For DS3  connectivity,  Customer will be  provisioned  through
                  MCI's ____ IP node. If necessary, Customer will be charged for
                  back hauling its DS3  connection  facility from the Customer's
                  MCI Point of Presence location to the nearest natural backhaul
                  BIPP node  termination  point in MCI's Internet network at the
                  per-mile  TDS 45 rates  set forth in MCI's  Tariff  FCC No. 1.
                  Such back-hauling charges are eligible for the discount as set
                  forth in Section II(C)(1) below.

                  4.       Price  Changes.  MCI reserves the right to change its
                           Network Connection pricing on 30-days advance notice.
                           If  any  such  price  change,  after  all  applicable
                           discounts  are applied,  results in a net decrease to
                           Customer's monthly charges, Customer will receive the
                           benefit of such decrease. If such price change, after
                           all  applicable  discounts are applied,  results in a
                           net increase to  Customer's  monthly  charges of more
                           than five percent (5%),  Customer may terminate  this
                           Agreement  without  further  liability,   other  than
                           payment of charges  incurred prior to the termination
                           date.   To  exercise  the  right  to  terminate   the
                           Agreement provided under this Section,  Customer must
                           provide  MCI with at least  thirty  (30)  days  prior
                           written notice, which notice must be delivered to MCI
                           within  thirty  (30) days of  Customer's  receipt  of
                           notice  of  the  applicable  price  increase.  Within
                           thirty (30) days of any termination of this Agreement
                           pursuant to this Section, Customer shall repay to MCI
                           any  credits  that MCI may have  granted to  Customer
                           hereunder.

                  5.       Partial Billing.  Customers will be billed a prorated
                           share of the above charges for connections installed,
                           terminated,  or  reconfigured  during the course of a
                           monthly billing cycle.

         C.       FIXED TERM DISCOUNTS

                  1.       Options.  Customer  will receive  discounts off MCI's
                           month-to-month   rates   by   committing   individual
                           connections  to 1, 2, 3, 4, or 5 year service  terms.
                           Fixed term  discounts  are  applied on the  effective
                           charges after applying all utilization and connection
                           cost-based  discounts  and  surcharges.   Fixed  term
                           discounts shall not apply to Local Leased Access Line
                           Charges.  If no term is selected below,  the Customer
                           will be  placed  on a  month-to-month  term  and will
                           receive no discounts.


                           Select One         Term (in Years)        Discount
                               [ ]                   0                  0%


                                     - 11 -
<PAGE>

                               [ ]                   1                  15%
                               [ ]                   2                  17%
                               [ ]                   3                  20%
                               [ ]                   4                  22%
                               [x]                   5                  25%


                  2.       Early  Termination.  If the Customer's  connection is
                           disconnected  prior to the end of the committed Term,
                           Customer will pay an early  termination  charge equal
                           to fifty  percent (50%) of their  subscribed  monthly
                           connection  charges,  including  applicable  backhaul
                           charges, multiplied by the number of months remaining
                           in the Term. In addition,  within thirty (30) days of
                           any  termination  of this  Agreement  for which early
                           termination  charges are  applicable,  Customer shall
                           repay to MCI any credits that MCI may have granted to
                           Customer  hereunder.  Early termination charges shall
                           apply in all cases except the following:

                  -        If the Customer  terminates its connection under this
                           Attachment due to a breach of the contract by MCI;

                  -        If MCI must disconnect service to the Customer due to
                           any  reason  not  resulting  from  a  breach  of  the
                           Agreement by Customer;

                  -        If Customer  terminates pursuant to Section II.B.4 of
                           this Attachment 3, following a rate increase

                  3.       Upgrades/Downgrades.  Customer  may change to a fixed
                           rate of DS3  connectivity  utilizing the  internetMCI
                           Fixed Rate DS3 service at any time during the term of
                           this  Agreement.   If  Customer  disconnects  service
                           within six (6) months of changing  the DS3  interface
                           of Customer's connection,  any applicable termination
                           charge  will  be  based  on the  DS3  interface  used
                           immediately prior to such downgrade.  To exercise its
                           right under this provision, the Customer must provide
                           written  notice to MCI at least  thirty  (30) days in
                           advance, in the manner specified in Attachment 2.


[END OF ATTACHMENT 3]


                                     - 12 -
<PAGE>

                                  ATTACHMENT 4

                MCI TELECOMMUNICATIONS CORPORATION AND AFFILIATES
                          POLICY AGAINST SPAMMING (1)


MCI  and  its  affiliates   provide  to  business  and  consumer  users  several
information  technology  related  services,  including  such service as Internet
access,  various  electronic mail (email) packages and services,  World Wide Web
website hosting arrangements, and other online and Internet-related services.

It is contrary to MCI policy for any user of any of these  services to effect or
participate in any of the following activities through an MCI-provided service:

1. To post ten (10) or more  messages  similar  in  content  to  Usenet or other
newsgroups, forums, email mailing lists or other similar groups or lists:

2. To post to any Usenet or other newsgroup,  forum, email mailing list or other
similar group or list articles  which are off-topic  according to the charter or
other owner-published FAQ or description of the group or list;

3. To send  unsolicited  emailings to more than twenty-five (25) email users, if
such unsolicited emailings could reasonably be expected to provoke complaints.

4. To falsify user information  provided to MCI or to other users of the service
in connection with use of an MCI service.

5. To engage in any of the foregoing  activities by using the service of another
provider,  but channeling such activities through an MCI account,  remailer,  or
otherwise  through  an MCI  service or using an MCI  account  as a maildrop  for
responses or otherwise using the services of another provider for the purpose of
facilitating  the foregoing  activities if such use of anothers  party's service
could reasonably be expected to adversely affect an MCI service;

MCI considers the above practices to constitute  abuse of our service and of the
recipients of such  unsolicited  mailings  and/or  postings,  who often bear the
expense. Therefore, these practices are prohibited by MCI's terms and conditions
of  service.

- --------
(1) This policy is included in this  Agreement  for the  Customer's  information
purposes  and  constitutes  the policy as its exists at the time of execution of
this Agreement.  This policy is subject to change upon public posting by MCI and
without the agreement of the Customer.



                                     - 13 -
<PAGE>

Engaging in one or more of these  practices  will result in  termination  of the
offender's account and/or access to MCI services.

In addition,  MCI reserves the right,  where  feasible,  to implement  technical
mechanisms  which block  multiple  postings as  described  above before they are
forwarded or otherwise sent to their intended recipients.

This policy  addresses only the kinds of network abuse  specifically  enumerated
above.  In addition to these  activities,  MCI's terms and conditions of service
also prohibit other forms of abuse such as harassment and the posting of illegal
or  unlawful  materials,  and MCI will  respond as  appropriate  to these  other
activities as well.

Nothing  contained in this policy  shall be construed to limit MCI's  actions or
remedies in any way with  respect to any of the  foregoing  activities,  and MCI
reserves  the  right  to  take  any  and  all  additional  actions  it may  deem
appropriate with respect to such activities, including without limitation taking
action to recover the costs and expenses of  identifying  offenders and removing
them from the MCI service, and levying cancellation charges to cover MCI's costs
in the event of disconnection of dedicated access for the causes outlined above.
In addition,  MCI reserves at all times all rights and remedies  available to it
with respect to such activities at law or in equity.

If you have any  questions  regarding  this Policy on Spamming,  please  contact
[email protected].

[END OF ATTACHMENT 4]


                                     - 14 -
<PAGE>

                                  ATTACHMENT 5

                internetMCI DEDICATED ACCESS SERVICE OBJECTIVES


1.       SCOPE OF COVERAGE.

The  internetMCI  service  objectives  apply only to service  outages related to
Customer's access port, the router to which the access port is connected, and to
any network transport on MCI's Internet backbone (the "internetMCI  BIPP").  The
scope of  coverage  excludes,  without  limitation,  all other  public  Internet
backbones and networks,  any server on the Internet,  customer premise equipment
("CPE") and local  access and  backhaul  facilities  from the  customer to their
assigned router, which is the point of demarcation for purposes of these service
objectives,  and packet delivery to or from the Internet,  including Frame Relay
access.

2.       PERFORMANCE OBJECTIVE

MCI will use diligent  efforts to ensure that eligible  trouble tickets isolated
to exist on the  internetMCI  BIPP will be resolved  in ninety  (90)  minutes or
less.  Failure to meet this  objective may make Customer  eligible for a Service
credit to be applied to  Customer's  next  regularly-scheduled  invoice  for MCI
Dedicated  Internet  Access  Service.  Processing of any Customer credit will be
done by the  appropriate  MCI account sales team,  who will apply the applicable
credit parameters contained herein.

3.       MEASUREMENT OF THE OBJECTIVE

Mean-Time-To-Restore  ("MTTR") is the  measurement  that will be used to measure
the performance  objective.  MTTR will be calculated on a per occurrence  basis,
starting  with the opening by  Customer of a trouble  ticket and ending when MCI
makes its first attempt to notify Customer of restoration of the Service.

One of three levels of trouble ticket  severity will be assigned to each ticket,
depending on the impact of the service issue to Customer's business:

o    Severity  1 - System  down -  Cannot  PING to any  host -  complete  access
     router, access port failure or BIPP logical routing error;
o    Severity  2 -  System  partially  down - Can PING to some  hosts -  partial
     access router or port failure,
o    Severity  4 - Informational - CPE work or other.

Only trouble  tickets that are  classified  by MCI as Severity 1 conditions  may
make Customer eligible for Service credits under this Agreement.



                                     - 15 -
<PAGE>

4.       CUSTOMER REPORTING PROCEDURES

At the time  Customer  believes  that they are  experiencing  an  out-of-service
condition,  a trouble ticket should be opened be calling the designated internet
Network  Operations  Center  ("iNOC")  trouble  line.  Once the  ticket has been
opened, the appropriate MCI organizations  will initiate  diagnostic testing and
trouble  isolation  activities  to determine if the  difficulty  is related more
closely to access, the local loop, backhaul to an internetMCI BIPP gateway or by
CPE.  If the  trouble is  diagnosed  as one which may be within the  internetMCI
BIPP,  responsibility and management of that ticket will be assumed by the iNOC.
If a determination is made that the cause of the customer's  service outage is a
problem related to the internetMCI  BIPP (e.g.,  logical routing) and the outage
duration  exceeds the MTTR  objective,  Customer  may be eligible  for a Service
credit.

Responsibility  for trouble ticket  initiation rests solely with Customer,  with
follow up to be the joint  responsibility  of Customer and the MCI account sales
team.  No service  credits  can be extended  for any  customer  outage  unless a
trouble  ticket has been opened with the MCI iNOC.  In addition,  Customer  must
request a credit from the MCI account sales team.

5.       OTHER EXCLUSIONS

As provided in Section 1, the service level  objectives  contained  herein cover
only those Customer  outages which occur on the  internetMCI  BIPP,  using MCI's
border router as the point of demarcation.  The service level  objectives  apply
only to  out-of-service  conditions  and do not apply to service  interruptions,
degradation  of  service,   packet  loss,  or  sub-optimal  performance  on  the
internetMCI  BIPP Measurement of outages will be as provided in Section 3. In no
case will PING Tests  performed by customers  be  recognized  by MCI as a valid,
measurable criterion for outage determination for the purposes of establishing a
Service credit hereunder.

The  service  level  objectives  contained  herein  apply  only  to  internetMCI
Dedicated  Access  customers.  They do not apply to Internet  Service  Providers
("ISPs") who have a "peering" relationship with MCI nor do they apply to Concert
InternetPlus Service. For the purpose of this Agreement, "peering" is defined as
the exchange of customer  packets at the network  level  between an ISP and MCI,
either at a public  interconnection  point (NAP), or through a direct connection
with MCI.

Under no circumstances will credits be given for outages involving:

     (a)  trouble  tickets  associated  with  new  installations  (i.e.,  before
          service acceptance by Customer);
     (b)  trouble tickets erroneously opened by the Customer;



                                     - 16 -
<PAGE>

     (c)  outages  arising from required  Customer  circuit release for testing;
          and
     (d)  trouble  tickets  opened by Customer for circuit  monitoring  purposes
          only.

6.       CUSTOMER'S REMEDY FOR MCI'S FAILURE TO MEET SERVICE OBJECTIVE

Customer may be entitled to receive  certain  credits for covered outages of the
Service  which  are the fault of MCI.  To be  eligible  for a credit  hereunder,
Customer must follow the trouble  reporting  procedures  established  above, the
covered  outage must exceed the MTTR  objectives,  and  Customer  must request a
credit from the MCI  account  sales  team.  No credit  will be given  unless the
actual MTTR for an eligible  Severity 1 trouble ticket exceeds  ninety-one  (91)
minutes.  Customer's Service credit will be a prorated amount dependent upon the
length of the service outage and Customer's Monthly Recurring Charge ("MRC") for
the Service, as follows:

Length of Service Outage                  Amount of Credit

0 to 90 minutes                           none

91 minutes to 5 hours                     1 day's prorated portion of MRC

more than 5 hours                         3 days' prorated portion of MRC

Customer may receive no more than one such credit for the twenty-four  (24) hour
period  beginning with the opening of the trouble ticket,  even if more than one
outage occurs during that period. Customer's total credit in any month shall not
exceed Customer's total MRC for the Service for the month in which the credit is
to be applied.  Residual  credits may not be carried over to subsequent  months.
THIS CREDIT SHALL BE CUSTOMER'S SOLE AND EXCLUSIVE REMEDY FOR ANY SERVICE OUTAGE
OR ANY MCI FAILURE TO MEET THE SERVICE OBJECTIVES.


[END OF ATTACHMENT 5]

             SCHEDULE PURSUANT TO RULE 601(a) UNDER REGULATION S-K

As permitted by Rule 601(a) under  Regulation S-K under the  Securities  Act, we
have omitted the following agreements from this filing:

1)   internetMCI  Dedicated Access Agreement,  effective April 16, 1998, between
     SAVVIS  Communications  Corporation and networkMCI,  Inc. (served location:
     Atlanta, Georgia)

2)   internetMCI  Dedicated Access Agreement,  effective April 16, 1998, between
     SAVVIS  Communications  Corporation and networkMCI,  Inc. (served location:
     New York, New York)

3)   internetMCI  Dedicated Access Agreement,  effective April 16, 1998, between
     SAVVIS  Communications  Corporation and networkMCI,  Inc. (served location:
     Dallas, Texas)

4)   internetMCI  Dedicated Access Agreement,  effective April 16, 1998, between
     SAVVIS  Communications  Corporation and networkMCI,  Inc. (served location:
     St. Louis, Missouri)

5)   internetMCI  Dedicated Access Agreement,  effective April 16, 1998, between
     SAVVIS  Communications  Corporation and networkMCI,  Inc. (served location:
     Los Angelos, California)

6)   internetMCI  Dedicated  Access  Agreement,  effective  September  22, 1998,
     between SAVVIS  Communications  Corporation  and networkMCI,  Inc.  (served
     location: Chicago, Illinois)

                                     - 17 -


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