FOCAL COMMUNICATIONS CORP
S-1/A, 1999-06-07
RADIOTELEPHONE COMMUNICATIONS
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<PAGE>


   As filed with the Securities and Exchange Commission on June 7, 1999

                                                Registration No. 333-77995
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                               ________________

                             AMENDMENT NO. 1

                                    TO

                                   FORM S-1

                            REGISTRATION STATEMENT
                                     Under
                          The Securities Act of 1933

                               ________________

                       FOCAL COMMUNICATIONS CORPORATION
            (Exact name of registrant as specified in its charter)

                               ________________

<TABLE>
<S>                                 <C>                              <C>
            Delaware                            4813                       36-4167094
(State or other jurisdiction of     (Primary Standard Industrial        (I.R.S. Employer
incorporation or organization)      Classification Code Number)      Identification Number)
</TABLE>


         200 North LaSalle Street, Suite 1100, Chicago, Illinois 60601
                                (312) 895-8400
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

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

                               JOSEPH A. BEATTY
             Executive Vice President and Chief Financial Officer
                       Focal Communications Corporation
                     200 North LaSalle Street, Suite 1100
                            Chicago, Illinois 60601
                                (312) 895-8400
(Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                                  Copies to:
      Elizabeth C. Kitslaar, Esq.                Leigh P. Ryan, Esq.
      Jones, Day, Reavis & Pogue        Paul, Hastings, Janofsky & Walker LLP
         77 West Wacker Drive                      399 Park Avenue
              Suite 3500                             31st Floor
     Chicago, Illinois 60601-1692           New York, New York 10022-4697
            (312) 782-3939                         (212) 318-6000

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

  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 made pursuant to Rule 434,
check the following box. [_]

                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                Proposed maximum
          Title of each class of                   aggregate                Amount of
        securities to be registered          offering price (1)(2)       registration fee
- -----------------------------------------------------------------------------------------
<S>                                         <C>                      <C>
Common Stock (par value $0.01 per share)...       $115,000,000               $31,970
- -----------------------------------------------------------------------------------------
</TABLE>
- -------------------------------------------------------------------------------
(1) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457.

(2) The registration fee was paid on May 6, 1999.


                               ----------------
  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>

                               EXPLANATORY NOTE

     This Amendment No. 1 to the Registration Statement is being filed solely to
file an exhibit that was not previously filed and to update certain information
in Part II hereof. The information in Part I of the Registration Statement has
not changed.
<PAGE>

                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 13. Other Expenses of Issuance and Distribution

   The following table sets forth the estimated expenses to be borne by Focal
in connection with the issuance and distribution of the securities being
registered hereby, other than underwriting discounts and commissions.

<TABLE>
      <S>                                                             <C>
      Securities and Exchange Commission Registration Fee............ $ 31,970
      NASD Filing Fee................................................   12,000
      NASDAQ Listing Fee.............................................         *
      Printing.......................................................  100,000
      Legal Fees and Expenses........................................  350,000
      Accounting Fees and Expenses...................................   75,000
      Transfer Agent Fees and Expenses...............................         *
      Miscellaneous..................................................         *
                                                                      --------
          Total...................................................... $       *
                                                                      ========
</TABLE>
- --------
*  To be provided by amendment.

Item 14. Indemnification of Directors and Officers

   Delaware General Corporation Law. We have statutory authority to indemnify
our officers and directors. The applicable provisions of the DGCL state that,
to the extent an officer or director is successful on the merits or otherwise,
a corporation may indemnify any person who was or is a party or who is
threatened to be made a party to any threatened, pending or completed action,
suit or proceeding, whether civil, criminal, administrative or investigative
(other than an action by or in the right of the corporation), by reason of the
fact that he is or was a director, officer, employee or agent of the
corporation or is or was serving at the request of the corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise (each, a "Person"), against expenses
(including attorneys' fees), judgments, fines and amounts paid in settlement,
actually and reasonably incurred by such Person, if he acted in good faith and
in a manner he reasonably believed to be in, or not opposed to, the best
interests of the corporation and with respect to any criminal action or
proceeding, had no reasonable cause to believe his conduct was unlawful. In any
threatened, pending or completed action by or in the right of the corporation,
a corporation also may indemnify any such Person for costs actually and
reasonably incurred by him in connection with that action's defense or
settlement, if he acted in good faith and in a manner he reasonably believed to
be in, or not opposed to, the best interests of the corporation; however, no
indemnification shall be made with respect to any claim, issue or matter as to
which such Person shall have been adjudged to be liable to the corporation,
unless and only to the extent that a court shall determine that such indemnity
is proper.

   Under the applicable provisions of the DGCL, any indemnification shall be
made by the corporation only as authorized in the specific case upon a
determination that the indemnification of the director, officer, employee or
agent is proper in the circumstances because he has met the applicable standard
of conduct. Such determination shall be made:

      (1) By the Board of Directors by a majority vote the directors who are
  not parties to such action, suit or proceeding, even if less than a quorum;

      (2) By a committee of such directors designated by a majority vote of
  the directors who are not parties to such action, suit or proceeding, even
  if less than a quorum;

      (3) If there are no such directors, or if such directors so direct, by
  independent legal counsel in a written opinion; or

                                      II-1
<PAGE>

      (4) By the stockholders.

   Focal's certificate of incorporation and bylaws provide for indemnification
to the full extent permitted by the laws of the State of Delaware against and
with respect to threatened, pending or completed actions, suits or proceedings
arising from or alleged to arise from, a party's actions or omissions as a
director, officer, employee or agent of Focal or of any subsidiary of Focal or
of any other corporation, partnership, joint venture, trust or other entity
which he has served in such capacity at the request of Focal if such acts or
omissions occurred or were or are alleged to have occurred, while said party
was a director, officer employee or agent of Focal.

Item 15. Recent Sales of Unregistered Securities

   Since its inception, Focal has issued the following securities without
registration under the Securities Act (the disclosure, including the number of
shares, set forth below does not give effect to the recapitalization and stock
split referred to in the prospectus). As used below, the term "Focal," for all
times prior to June 12, 1997 (the date of the Plan of Reorganization and
Agreement whereby Focal became the holding company of Focal Communications of
Illinois and its subsidiaries), refers to Focal Communications Corporation of
Illinois.

   On May 18, 1996, in connection with Focal's formation, Focal issued 1 share
of common stock to Robert C. Taylor, Jr. for consideration of $1.00.

   On October 19, 1996, Focal issued an aggregate of 1,499 shares of common
stock to the Executive Investors for consideration of $1,499.

   On November 27, 1996, Focal issued an aggregate of 79,461.542 shares of
Class A common stock to the Institutional Investors, the Executive Investors
and an institution for an aggregate initial purchase price of $4,025,000.

   On November 27, 1996, Focal issued an aggregate of 20,000 shares of Class B
common stock and 14,711.54 shares of Class C common stock to the Executive
Investors upon conversion of the 1,500 shares of common stock previously held
by them into shares of Class B common stock and Class C common stock pursuant
to the terms of Focal's Amended and Restated Certificate of Incorporation. The
issuance of these securities was exempt from registration under the Securities
Act pursuant to Section 3(a)(9) of the Securities Act, as exempt securities.

   On May 20, 1997, Focal issued an aggregate of 846.15 shares of Class A
common stock to a director, two other individuals and a partnership for an
aggregate purchase price of $275,000.

   On June 30, 1997, Focal issued an aggregate of 80,307.57 shares of Class A
common stock, 20,000 shares of Class B common stock and 14,711.54 shares of
Class C common stock to the Institutional Investors, the Executive Investors, a
director, two other individuals, a partnership and an institution in exchange
for an equal number of shares of such classes of common stock of Focal
Communications Corporation of Illinois, pursuant to a Plan of Reorganization
and Agreement between Focal and Focal Communications Corporation of Illinois
whereby Focal became the holding company of Focal Communications Corporation of
Illinois and its subsidiaries.

   No underwriters were engaged in connection with the foregoing sales of
securities. Except as specifically otherwise provided above, the above-
described transactions were exempt from registration under the Securities Act
pursuant to Section 4(2) of the Securities Act, as transactions not involving
any public offering.

   On February 12, 1998, Focal issued $270,000,000 stated amount at maturity of
12.125% Senior Discount Notes due February 15, 2008 (the "Notes"). Focal
received approximately $150.0 million in gross proceeds and $144.0 million in
net proceeds (after discounts and commissions of approximately $6.0 million and
other

                                      II-2
<PAGE>

transaction costs) from the issuance of the Notes. The Notes were issued to (1)
"qualified institutional buyers" (as defined in Rule 144A under the Securities
Act), and (2) outside the United States in compliance with Regulation S under
the Securities Act, and therefore, the issuance of the Notes was exempt from
registration under the Securities Act. Salomon Brothers Inc, Morgan Stanley &
Co. Incorporated and NationsBanc Montgomery Securities LLC were the initial
purchasers of the Notes.

   On November 23, 1998, Focal issued 66.667 shares of Class A common stock to
a director and to a director and his wife as custodian for their children for
an aggregate purchase price of $100,000.

   On March 24, 1999, Focal issued 300 shares of Class A common stock to a
director for a purchase price of $472,500.

   On March 27, 1999, an employee of Focal was issued 72.25 shares of Class A
common stock upon exercise of stock options granted under Focal's 1997 Plan for
an aggregate purchase price of $69,352.50.

   On April 25, 1999, an employee of Focal was issued 18 shares of Class A
common stock upon exercise of stock options granted under Focal's 1997 Plan for
an aggregate purchase price of $27,000.

   On May 10, 1999, an employee of Focal was issued 35.75 shares of Class A
common stock upon exercise of stock options granted under Focal's 1997 Plan for
an aggregate purchase price of $29,367.50.

   On May 24, 1999, two employees of Focal were issued an aggregate of 14.75
shares of Class A common stock upon exercise of stock options granted under
Focal's 1997 Plan for an aggregate purchase price of $4,912.00.

   On June 3, 1999, an employee of Focal was issued 4 shares of Class A common
stock upon exercise of stock options granted under Focal's 1997 Plan for an
aggregate purchase price of $4,200.00.

   No underwriters were engaged in connection with the sales of securities set
forth in the seven preceding paragraphs, and these transactions were exempt
from registration under the Securities Act pursuant to Section 4(2) of the
Securities Act, as transactions not involving any public offering, or pursuant
to Rule 701 under the Securities Act as sales of securities pursuant to certain
compensatory benefit plans.

Item 16. Exhibits And Financial Statement Schedules

   (A) Exhibits

<TABLE>
<CAPTION>
      Exhibit
      Number                          Exhibit Description
      -------                         -------------------
     <C>       <S>
      1.1      Form of Underwriting Agreement.+

      2.1      Plan of Reorganization and Agreement by and among Focal
               Communications Corporation and its Subsidiaries, dated June 12,
               1997. (Incorporated by reference to Exhibit No. 2.1 to the
               Registrant's Registration Statement on Form S-4 originally filed
               with the Securities and Exchange Commission on August 13, 1998
               (Registration No. 333-49397) (the "S-4"))

      3.1      Certificate of Incorporation. (Incorporated by reference to
               Exhibit No. 3.1 of the S-4)

      3.2      Amendment to Certificate of Incorporation. (Incorporated by
               reference to Exhibit No. 3.2 to Focal's Annual Report on Form
               10-K for year ended December 31, 1998 originally filed with the
               Securities and Exchange Commission on March 31, 1998 (the "1998
               10-K"))

      3.3      Form of Amended and Restated Certificate of Incorporation.+

      3.4      By-Laws. (Incorporated by reference to Exhibit No. 3.2 of the S-
               4)

      3.5      Form of Amended and Restated By-Laws.+

</TABLE>

                                      II-3
<PAGE>

<TABLE>
<CAPTION>
      Exhibit
      Number                          Exhibit Description
      -------                         -------------------
     <S>       <C>
      4.1      Indenture with Harris Trust and Savings Bank, dated February 18,
               1998. (Incorporated by reference to Exhibit No. 4.1 of the S-4)

      4.2      Initial Global 12.125% Senior Discount Note Due February 15,
               2008, dated February 18, 1998. (Incorporated by reference to
               Exhibit No. 4.2 of the S-4)

      4.3      Stock Purchase Agreement with Madison Dearborn Capital Partners,
               L.P., Frontenac VI, L.P., Battery Ventures III, L.P., Brian F.
               Addy, John R. Barnicle, Joseph Beatty, and Robert C. Taylor Jr.,
               dated November 27, 1996. (Incorporated by reference to Exhibit
               No. 4.5 of the S-4)

      4.4      Amendment No. 1 to Stock Purchase Agreement with Madison
               Dearborn Capital Partners, L.P., Frontenac VI, L.P., Battery
               Ventures III, L.P., Brian F. Addy, John R. Barnicle, Joseph
               Beatty, and Robert C. Taylor Jr., dated January 23, 1998.
               (Incorporated by reference to Exhibit No. 4.6 of the S-4)

      4.5      Amendment No. 2 to Stock Purchase Agreement with Madison
               Dearborn Capital Partners, L.P., Frontenac VI, L.P., Battery
               Ventures III, L.P., Brian F. Addy, John R. Barnicle, Joseph
               Beatty and Robert C. Taylor, Jr., dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.8 to the
               Registrant's Quarterly Report on Form 10-Q for the period ending
               September 30, 1998, originally filed with the Securities and
               Exchange Commission on November 16, 1998 (the "3rd Quarter 1998
               10-Q"))

      4.6      Vesting Agreement with Madison Dearborn Capital Partners, L.P.,
               Brian F. Addy, John R. Barnicle, Joseph Beatty and Robert C.
               Taylor, Jr., dated as of November 27, 1996. (Incorporated by
               reference to Exhibit No. 4.1 of the 3rd Quarter 1998 10-Q)

      4.7      Vesting Agreement with Frontenac VI, L.P., Brian F. Addy, John
               R. Barnicle, Joseph Beatty and Robert C. Taylor, Jr., dated as
               of November 27, 1996. (Incorporated by reference to Exhibit No.
               4.2 of the 3rd Quarter 1998 10-Q)

      4.8      Vesting Agreement with Battery Ventures III, L.P., Brian F.
               Addy, John R. Barnicle, Joseph Beatty and Robert C. Taylor, Jr.,
               dated as of November 27, 1996. (Incorporated by reference to
               Exhibit No. 4.3 of the 3rd Quarter 1998 10-Q)

      4.9      Amendment No. 1 to Vesting Agreement and Consent as of August
               21, 1998, between Focal Communications Corporation with Madison
               Dearborn Capital Partners, L.P., Frontenac VI, L.P., Battery
               Ventures III, L.P., Brian F. Addy, John R. Barnicle, Joseph
               Beatty and Robert C. Taylor, Jr., dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.4 of the 3rd Quarter
               1998 10-Q)

      4.10     Amendment No. 1 to Vesting Agreement and Consent as of August
               21, 1998, between Focal Communications Corporation with Madison
               Dearborn Capital Partners, L.P., Frontenac VI, L.P., Battery
               Ventures III, L.P., Brian F. Addy, John R. Barnicle, Joseph
               Beatty and Robert C. Taylor, Jr., dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.5 of the 3rd Quarter
               1998 10-Q)

      4.11     Amendment No. 1 to Vesting Agreement and Consent as of August
               21, 1998, between Focal Communications Corporation with Madison
               Dearborn Capital Partners, L.P., Frontenac VI, L.P., Battery
               Ventures III, L.P., Brian F. Addy, John R. Barnicle, Joseph
               Beatty and Robert C. Taylor, Jr., dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.6 of the 3rd Quarter
               1998 10-Q)

      4.12     Form of Restricted Stock Agreement, dated September 30, 1998
               between Focal Communications Corporation and each of Brian F.
               Addy, John R. Barnicle, Joseph Beatty, and Robert C. Taylor, Jr.
               (Incorporated by reference to Exhibit No. 4.7 of the 3rd Quarter
               1998 10-Q)
</TABLE>

                                      II-4
<PAGE>

<TABLE>
<CAPTION>
      Exhibit
      Number                          Exhibit Description
      -------                         -------------------
     <S>       <C>
      4.13     Stockholders Agreement with Madison Dearborn Capital Partners,
               L.P., Frontenac VI, L.P., Battery Ventures III, L.P., Brian F.
               Addy, John R. Barnicle, Joseph Beatty, and Robert C. Taylor,
               Jr., dated November 27, 1996. (Incorporated by reference to
               Exhibit No. 4.11 of the S-4)

      4.14     Amendment No. 1 to Stockholders Agreement with Madison Dearborn
               Capital Partners, L.P., Frontenac VI, L.P., Battery Ventures
               III, L.P., Brian F. Addy, John R. Barnicle, Joseph Beatty and
               Robert C. Taylor, Jr., dated as of July 7, 1998. (Incorporated
               by reference to Exhibit No. 4.9 of the 3rd Quarter 1998 10-Q)

      4.15     Amendment No. 2 to Stockholders Agreement with Madison Dearborn
               Capital Partners, L.P., Frontenac VI, L.P., Battery Ventures
               III, L.P., Brian F. Addy, John R. Barnicle, Joseph Beatty and
               Robert C. Taylor, Jr., dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.10 of the 3rd
               Quarter 1998 10-Q)

      4.16     Amendment No. 3 to Stockholders Agreement with Madison Dearborn
               Capital Partners, L.P., Frontenac VI, L.P., Battery Ventures
               III, L.P., Brian F. Addy, John R. Barnicle, Joseph Beatty, and
               Robert C. Taylor, Jr., dated February 16, 1999. (Incorporated by
               reference to Exhibit No. 4.16 to the 1998 10-K)

      4.17     Executive Stock Agreement and Employment Agreement with Brian F.
               Addy, dated November 27, 1996. (Incorporated by reference to
               Exhibit No. 4.12 of the S-4).

      4.18     Executive Stock Agreement and Employment Agreement with John R.
               Barnicle, dated November 27, 1996. (Incorporated by reference to
               Exhibit No. 4.13 of the S-4).

      4.19     Executive Stock Agreement and Employment Agreement with Joseph
               A. Beatty, dated November 27, 1996. (Incorporated by reference
               to Exhibit No. 4.14 of the S-4).

      4.20     Executive Stock Agreement and Employment Agreement with Robert
               C. Taylor, Jr., dated November 27, 1996. (Incorporated by
               reference to Exhibit No. 4.15 of the S-4).

      4.21     Amendment No. 1 to Executive Employment Agreement and Consent
               with Brian F. Addy, dated as of August 21, 1998. (Incorporated
               by reference to Exhibit No. 4.11 of the 3rd Quarter 1998 10-Q).

      4.22     Amendment No. 1 to Executive Employment Agreement and Consent
               with John R. Barnicle, dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.12 of the 3rd
               Quarter 1998 10-Q).

      4.23     Amendment No. 1 to Executive Employment Agreement and Consent
               with Joseph Beatty, dated as of August 21, 1998. (Incorporated
               by reference to Exhibit No. 4.13 of the 3rd Quarter 1998 10-Q).

      4.24     Amendment No. 1 to Executive Employment Agreement and Consent
               with Robert C. Taylor, Jr., dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.14 of the 3rd
               Quarter 1998 10-Q).

      4.25     Registration Agreement with Madison Dearborn Capital Partners,
               L.P., Frontenac VI, L.P., Battery Ventures III, L.P., Brian F.
               Addy, John R. Barnicle, Joseph Beatty, and Robert C. Taylor,
               Jr., dated November 27, 1996. (Incorporated by reference to
               Exhibit No. 4.16 of the S-4)

      4.26     Amendment No. 1 to Registration Agreement with Madison Dearborn
               Capital Partners, L.P., Frontenac VI, L.P., Battery Ventures
               III, L.P., Brian F. Addy, John R. Barnicle, Joseph Beatty and
               Robert C. Taylor, Jr., dated as of August 21, 1998.
               (Incorporated by reference to Exhibit No. 4.15 of the 3rd
               Quarter 1998 10-Q)

      5.1      Opinion of Jones, Day, Reavis & Pogue regarding validity of
               shares.+
</TABLE>

                                      II-5
<PAGE>

<TABLE>
<CAPTION>
      Exhibit
      Number                          Exhibit Description
      -------                         -------------------
     <S>       <C>
     10.1      Interconnection Agreement with Ameritech Information Industry
               Services, dated October 28, 1996. (Incorporated by reference to
               Exhibit No. 10.1 of the S-4)

     10.2      Interconnection Agreement with Ameritech Information Industry
               Services, dated October 31, 1997. (Incorporated by reference to
               Exhibit No. 10.2 of the S-4)

     10.3      Interconnection Agreement with New York Telephone Company, dated
               November 10, 1997. (Incorporated by reference to Exhibit No.
               10.3 of the S-4)

     10.4      Amended and Restated Interconnection Agreement with Ameritech
               Information Industry Services, dated March 16, 1998.
               (Incorporated by reference to Exhibit No. 10.4 of the 1998 S-4)

     10.5      Interconnection Agreement with Bell Atlantic-Pennsylvania, dated
               April 27, 1998. (Incorporated by reference to Exhibit No. 10.26
               of the S-4)

     10.6      Interconnection Agreement with Bell Atlantic-Delaware, dated
               April 27, 1998. (Incorporated by reference to Exhibit No. 10.25
               of the S-4)

     10.7      Interconnection Agreement with Bell Atlantic-New Jersey, dated
               April 27, 1998. (Incorporated by reference to Exhibit No. 10.24
               of the S-4)

     10.8      Interconnection Agreement with GTE--California, dated June 12,
               1998. (Incorporated by reference to Exhibit No. 10.23 of the S-
               4)

     10.9      Interconnection Agreement with Pacific Bell, dated June 15,
               1998. (Incorporated by reference to Exhibit No. 10.22 of the S-
               4)

     10.10     Interconnection Agreement with Bell-Atlantic-District of
               Columbia dated October 1, 1998. (Incorporated by reference to
               Exhibit No. 10.1 to Focal's Quarterly Report on Form 10-Q for
               the Period Ended March 31, 1999 (the "1st Quarter 1999 10-Q"))

     10.11     Interconnection Agreement with Bell-Atlantic-Maryland dated
               October 2, 1998. (Incorporated by reference to Exhibit No. 10.2
               to the 1st Quarter 1999 10-Q)

     10.12     Interconnection Agreement with Bell Atlantic-Virginia dated
               October 2, 1998. (Incorporated by reference to Exhibit No. 10.3
               to the 1st Quarter 1999 10-Q)

     10.13     Interconnection Agreement with U.S. West-Washington State dated
               January 15, 1999. (Incorporated by reference to Exhibit No. 10.4
               to the 1st Quarter 1999 10-Q)

     10.14     Interconnection Agreement with Ameritech Information Industry
               Services, on behalf of and as agent for Ameritech Michigan dated
               February 10, 1999. (Incorporated by reference to Exhibit No.
               10.5 to the 1st Quarter 1999 10-Q)

     10.15     Interconnection Agreement with Bell Atlantic-Massachusetts dated
               February 15, 1999. (Incorporated by reference to Exhibit No.
               10.6 to the 1st Quarter 1999 10-Q)

     10.16     First Amendment to the Interconnection Agreement with Ameritech
               Information Industry Services, dated September 8, 1998.
               (Incorporated by reference to Exhibit No. 10.1 of the 3rd
               Quarter 1998 10-Q)

     10.17     Network Products Purchase Agreement with Northern Telecom Inc.,
               dated January 21, 1997. (Incorporated by reference to Exhibit
               No. 10.5 of the S-4)*

     10.18     Amendments No. 1 and No. 2 to Network Products Purchase
               Agreement with Northern Telecom Inc., both dated March 6, 1998.
               (Incorporated by reference to Exhibit No. 10.6 of the S-4)*

     10.19     Amendment No. 3 to Network Products Purchase Agreement with
               Northern Telecom Inc., dated March 25, 1999. (Incorporated by
               reference to Exhibit No. 10.7 to the 1st Quarter 1999 10-Q)*
</TABLE>

                                      II-6
<PAGE>

<TABLE>
<CAPTION>
      Exhibit
      Number                          Exhibit Description
      -------                         -------------------
     <S>       <C>
     10.20     Software License with DPI/TFS, Inc., dated April 10, 1997.
               (Incorporated by reference to Exhibit No. 10.17 of the S-4)*

     10.21     Second Amendment to Lease Agreement for property located at 200
               North LaSalle, Chicago, IL, dated November 15, 1997.
               (Incorporated by reference to Exhibit No. 10.9 of the S-4)

     10.22     Lease Agreement for property located at 200 North LaSalle,
               Chicago, IL, dated December 31, 1996. (Incorporated by reference
               to Exhibit No. 10.7 of the S-4)

     10.23     First Amendment to Lease Agreement for property located at 200
               North LaSalle, Chicago, IL, dated May 14, 1997. (Incorporated by
               reference to Exhibit No. 10.8 of the S-4)

     10.24     Loan and Security Agreement with NTFC Capital Corporation dated
               December 30, 1998. (Incorporated by reference to Exhibit No.
               10.17 of the 1998 10-K)*

     10.25     Amendment No. 1 to Loan and Security Agreement with NTFC Capital
               Corporation dated as of April 15, 1999.++

     10.26     Purchase Agreement with XCOM Technologies, Inc., dated January
               6, 1999. (Incorporated by reference to Exhibit No. 10.8 to the
               1st Quarter 1999 10-Q)*

     10.27     Third Amendment to Lease Agreement for property located at 200
               North LaSalle, Chicago, IL, dated March 2, 1998. (Incorporated
               by reference to Exhibit No. 10.10 of the S-4)

     10.28     Fourth Amendment to Lease Agreement for property located at 200
               North LaSalle, Chicago, IL, dated April 4, 1998. (Incorporated
               by reference to Exhibit No. 10.18 of the S-4)

     10.29     Fifth Amendment to Lease Agreement for property located at 200
               North LaSalle, Chicago, IL, dated October 14, 1998.
               (Incorporated by reference to Exhibit No. 10.9 to the 1st
               Quarter 1999 10-Q)

     10.30     Sixth Amendment to Lease Agreement for property located at 200
               North LaSalle, Chicago, IL, dated February 18, 1999.
               (Incorporated by reference to Exhibit No. 10.10 to the 1st
               Quarter 1999 10-Q)

     10.31     Lease Agreement for property located at 32 Old Slip, New York,
               NY, dated May 20, 1997. (Incorporated by reference to Exhibit
               No. 10.11 of the S-4)

     10.32     Lease Agreement for property located at 650 Townsend Street, San
               Francisco, CA, dated January 26, 1998. (Incorporated by
               reference to Exhibit No. 10.12 of the S-4)

     10.33     First Amendment to Lease Agreement for property located at 650
               Townsend Street, San Francisco, CA, dated March 3, 1998.
               (Incorporated by reference to Exhibit No. 10.11 to the 1st
               Quarter 1999 10-Q)

     10.34     Second Amendment to Lease Agreement for property located at 650
               Townsend Street, San Francisco, CA, dated June 16, 1998.
               (Incorporated by reference to Exhibit No. 10.12 to the 1st
               Quarter 1999 10-Q)

     10.35     Third Amendment to Lease Agreement for property located at 650
               Townsend Street, San Francisco, CA, dated February 16, 1999.
               (Incorporated by reference to Exhibit No. 10.13 to the 1st
               Quarter 1999 10-Q)

     10.36     Lease Agreement for property located at 701 Market Street,
               Philadelphia, Pennsylvania, dated March 10, 1998. (Incorporated
               by reference to Exhibit No. 10.13 of the S-4)

     10.37     Lease Agreement for property located at 1120 Vermont Avenue, NW,
               Washington, D.C., dated as of May 4, 1998. (Incorporated by
               reference to Exhibit No. 10.19 of the S-4)
</TABLE>

                                      II-7
<PAGE>

<TABLE>
<CAPTION>
      Exhibit
      Number                          Exhibit Description
      -------                         -------------------
     <S>       <C>
     10.38     First Amendment to Lease Agreement for property located at 1120
               Vermont, NW, Washington, D.C., dated July 23, 1998.
               (Incorporated by reference to Exhibit No. 10.6 of the 3rd
               Quarter 1998 10-Q)

     10.39     Lease Agreement for property located at 1200 West Seventh
               Street, Los Angeles, California, dated as of May 19, 1998.
               (Incorporated by reference to Exhibit No. 10.20 of the 1998 S-4)

     10.40     First Amendment to Lease Agreement for property located at 1200
               West 7th Street, Los Angeles, CA, dated July 8, 1998.
               (Incorporated by reference to Exhibit No. 10.5 of the 3rd
               Quarter 1998 10-Q)

     10.41     Lease Agreement for property located at 1511 6th Avenue,
               Seattle, WA, dated August 7, 1998. (Incorporated by reference to
               Exhibit No. 10.2 of the 3rd Quarter 1998 10-Q)

     10.42     Lease Agreement for property located at 23800 West Ten Mile
               Road, Southfield, MI, dated August 31, 1998. (Incorporated by
               reference to Exhibit No. 10.3 of the 3rd Quarter 1998 10-Q)

     10.43     Lease Agreement for property located at One Penn Plaza, New
               York, NY, dated September 25, 1998. (Incorporated by reference
               to Exhibit No. 10.4 of the 3rd Quarter 1998 10-Q)

     10.44     Lease Agreement for property located at 1950 Stemmons Freeway,
               Dallas, TX, dated December 15, 1998. (Incorporated by reference
               to Exhibit No. 10.14 to the 1st Quarter 1999 10-Q)

     10.45     Lease Agreement for property located at One Main Street,
               Cambridge, MA, dated January 6, 1999. (Incorporated by reference
               to Exhibit No. 10.15 to the 1st Quarter 1999 10-Q)

     10.46     Lease Agreement for property located at 250 Williams Street,
               Atlanta, GA, dated February 5, 1999. (Incorporated by reference
               to Exhibit No. 10.16 to the 1st Quarter 1999 10-Q)

     10.47     Lease Agreement for property located at Christopher Columbus
               Drive & Washington Street, Jersey City, NJ, dated February 19,
               1999. (Incorporated by reference to Exhibit No. 10.17 to the 1st
               Quarter 1999 10-Q)

     10.48     Employment Agreement with Renee M. Martin, dated March 20, 1998.
               (Incorporated by reference to Exhibit No. 10.16 of the S-4)~.

     10.49     Amendment No. 1 to Executive Employment Agreement with Renee M.
               Martin, dated as of August 21, 1998. (Incorporated by reference
               to Exhibit No. 10.10 of the 3rd Quarter 1998 10-Q).

     10.50     1997 Nonqualified Stock Option Plan, amended and restated as of
               August 21, 1998. (Incorporated by reference to Exhibit No. 10.7
               of the 3rd Quarter 1998 10-Q).

     10.51     Form of Amended and Restated Stock Option Agreement.
               (Incorporated by reference to Exhibit No. 10.33 of the 1998 10-
               K).

     10.52     1998 Equity and Performance Incentive Plan. (Incorporated by
               reference to Exhibit No. 10.8 of the 3rd Quarter 1998 10-Q).

     10.53     1998 Equity Plan for Non-Employee Directors. (Incorporated by
               reference to Exhibit No. 10.9 of the 3rd Quarter 1998 10-Q).

     10.54     Agreement for Sale of Real Property between Focal Communications
               Corporation and United Air Lines, Inc. dated August 13, 1998.
               (Incorporated by reference to Exhibit No. 10.36 of the 1998 10-
               K)

     10.55     IRU Agreement dated April 28, 1999, by and between Focal
               Financial Services, Inc. and Level 3 Communications, LLC.*++
</TABLE>

                                      II-8
<PAGE>

<TABLE>
<CAPTION>
      Exhibit
      Number                          Exhibit Description
      -------                         -------------------
     <S>       <C>
     10.56     Private Line Service Agreement, dated May 4, 1999, by and
               between Focal Communications Corporation and WorldCom
               Technologies, Inc.*++

     10.57     Fiber Optic Network leased Fiber Agreement between Metromedia
               Fiber Network Services, Inc. and Focal Financial Services, Inc.,
               dated as of May 24, 1999.*

     21.1      Subsidiaries of the Registrant. (Incorporated by reference to
               Exhibit No. 21.1 to the 1998 10-K)

     23.1      Consent of Arthur Andersen LLP.++

     23.2      Consent of Jones, Day, Reavis & Pogue. (to be included as part
               of its opinion filed as Exhibit 5.1)

     24.1      Powers of Attorney.++
</TABLE>

- --------
*Portions of this exhibit have been omitted pursuant to a request for
   confidential treatment, and the omitted portions have been filed separately
   with the Securities and Exchange Commission.
+To be filed by Amendment


++Filed with the Registration Statement on May 7, 1999.
 .Management Contract or Compensatory Plan

   (B) Financial Statement Schedules.

   Schedule II Valuation of Qualifying Accounts

Item 17. Undertakings

   The Registrant hereby undertakes that:

     (1) For purposes of determining any liability under the Securities Act
  of 1933, 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)(l) 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.

   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 Act and is,
therefore, unenforceable. In the event that 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 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 Act and will be governed by the final adjudication of such
issue.

                                      II-9
<PAGE>

                                   SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the registrant
has duly caused this Amendment No. 1 to the Registration Statement to be signed
on its behalf by the undersigned, thereunto duly authorized, in the City of
Chicago, State of Illinois, on June 7, 1999.

                                          Focal Communications Corporation

                                               /s/ Robert C. Taylor, Jr.
                                          By: _________________________________
                                                   Robert C. Taylor, Jr.
                                               President and Chief Executive
                                                          Officer

                               POWER OF ATTORNEY

   Pursuant to the requirements of the Securities Act of 1933, this Amendment
No. 1 to the Registration Statement has been signed by the following persons in
the capacities indicated on June 7, 1999.

<TABLE>
<CAPTION>
                 Signature                                   Title(s)
                 ---------                                   --------


<S>                                         <C>
       /s/ Robert C. Taylor, Jr.            President, Chief Executive Officer and
___________________________________________   Director (Principal Executive Officer)
           Robert C. Taylor, Jr.

         /s/ John R. Barnicle               Executive Vice President, Chief Operating
___________________________________________   Officer and Director
             John R. Barnicle

         /s/ Joseph A. Beatty               Executive Vice President and Chief
___________________________________________   Financial Officer (Principal Financial
             Joseph A. Beatty                 Officer)

        /s/ Gregory J. Swanson              Controller (Principal Accounting Officer)
___________________________________________
            Gregory J. Swanson

      /s/ James E. Crawford, III*           Director
___________________________________________
          James E. Crawford, III

        /s/ John A. Edwardson*              Director
___________________________________________
            John A. Edwardson

         /s/ Paul J. Finnegan*              Director
___________________________________________
             Paul T. Finnegan

        /s/ Richard D. Frisbie*             Director
___________________________________________
            Richard D. Frisbie

       /s/ James N. Perry, Jr.*             Director
___________________________________________
           James N. Perry, Jr.

         /s/ Paul G. Yovovich*              Director
___________________________________________
             Paul G. Yovovich
</TABLE>
- --------
 * Signed by Joseph A. Beatty pursuant to a power of attorney filed as an
   exhibit to this registration statement.

                                     II-10
<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number              Exhibit Description                      Location
 ------- ------------------------------------------   -------------------------
 <C>     <S>                                          <C>
  1.1    Form of Underwriting Agreement.              To be filed by Amendment

  2.1    Plan of Reorganization and Agreement by      Incorporated by reference
         and among Focal Communications Corporation
         and its Subsidiaries, dated June 12, 1997.
         (Incorporated by reference to Exhibit No.
         2.1 to the Registrant's Registration
         Statement on Form S-4 originally filed
         with the Securities and Exchange
         Commission on August 13, 1998
         (Registration No. 333-49397) (the "S-4"))

  3.1    Certificate of Incorporation.                Incorporated by reference
         (Incorporated by reference to Exhibit
         No. 3.1 of the S-4)

  3.2    Amendment to Certificate of Incorporation.   Incorporated by reference
         (Incorporated by reference to Exhibit No.
         3.2 to Focal's Annual Report on Form 10-K
         for year ended December 31, 1998
         originally filed with the Securities and
         Exchange Commission on March 31, 1998 (the
         "1998 10-K"))

  3.3    Form of Amended and Restated Certificate     To be filed by Amendment
         of Incorporation.

  3.4    By-Laws. (Incorporated by reference to       Incorporated by reference
         Exhibit No. 3.2 of the S-4)

  3.5    Form of Amended and Restated By-Laws.        To be filed by Amendment

  4.1    Indenture with Harris Trust and Savings      Incorporated by reference
         Bank, dated February 18, 1998.
         (Incorporated by reference to Exhibit No.
         4.1 of the S-4)

  4.2    Initial Global 12.125% Senior Discount       Incorporated by reference
         Note Due February 15, 2008, dated February
         18, 1998. (Incorporated by reference to
         Exhibit No. 4.2 of the S-4)

  4.3    Stock Purchase Agreement with Madison        Incorporated by reference
         Dearborn Capital Partners, L.P., Frontenac
         VI, L.P., Battery Ventures III, L.P.,
         Brian F. Addy, John R. Barnicle, Joseph
         Beatty, and Robert C. Taylor Jr., dated
         November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.5 of the S-4)

  4.4    Amendment No. 1 to Stock Purchase            Incorporated by reference
         Agreement with Madison Dearborn Capital
         Partners, L.P., Frontenac VI, L.P.,
         Battery Ventures III, L.P., Brian F. Addy,
         John R. Barnicle, Joseph Beatty, and
         Robert C. Taylor Jr., dated January 23,
         1998. (Incorporated by reference to
         Exhibit No. 4.6 of the S-4)

  4.5    Amendment No. 2 to Stock Purchase            Incorporated by reference
         Agreement with Madison Dearborn Capital
         Partners, L.P., Frontenac VI, L.P.,
         Battery Ventures III, L.P., Brian F. Addy,
         John R. Barnicle, Joseph Beatty and Robert
         C. Taylor, Jr., dated as of August 21,
         1998. (Incorporated by reference to
         Exhibit No. 4.8 to the Registrant's
         Quarterly Report on Form 10-Q for the
         period ending September 30, 1998,
         originally filed with the Securities and
         Exchange Commission on November 16, 1998
         (the "3rd Quarter 1998 10-Q"))

  4.6    Vesting Agreement with Madison Dearborn      Incorporated by reference
         Capital Partners, L.P., Brian F. Addy,
         John R. Barnicle, Joseph Beatty and Robert
         C. Taylor, Jr., dated as of November 27,
         1996. (Incorporated by reference to
         Exhibit No. 4.1 of the 3rd Quarter 1998
         10-Q)

</TABLE>

<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number              Exhibit Description                      Location
 ------- ------------------------------------------   -------------------------
 <C>     <S>                                          <C>
  4.7    Vesting Agreement with Frontenac VI, L.P.,   Incorporated by reference
         Brian F. Addy, John R. Barnicle, Joseph
         Beatty and Robert C. Taylor, Jr., dated as
         of November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.2 of the 3rd
         Quarter 1998 10-Q)

  4.8    Vesting Agreement with Battery Ventures      Incorporated by reference
         III, L.P., Brian F. Addy, John R.
         Barnicle, Joseph Beatty and Robert C.
         Taylor, Jr., dated as of November 27,
         1996. (Incorporated by reference to
         Exhibit No. 4.3 of the 3rd Quarter 1998
         10-Q)

  4.9    Amendment No. 1 to Vesting Agreement and     Incorporated by reference
         Consent as of August 21, 1998, between
         Focal Communications Corporation with
         Madison Dearborn Capital Partners, L.P.,
         Frontenac VI, L.P., Battery Ventures III,
         L.P., Brian F. Addy, John R. Barnicle,
         Joseph Beatty and Robert C. Taylor, Jr.,
         dated as of August 21, 1998. (Incorporated
         by reference to Exhibit No. 4.4 of the 3rd
         Quarter 1998 10-Q)

  4.10   Amendment No. 1 to Vesting Agreement and     Incorporated by reference
         Consent as of August 21, 1998, between
         Focal Communications Corporation with
         Madison Dearborn Capital Partners, L.P.,
         Frontenac VI, L.P., Battery Ventures III,
         L.P., Brian F. Addy, John R. Barnicle,
         Joseph Beatty and Robert C. Taylor, Jr.,
         dated as of August 21, 1998. (Incorporated
         by reference to Exhibit No. 4.5 of the 3rd
         Quarter 1998 10-Q)

  4.11   Amendment No. 1 to Vesting Agreement and     Incorporated by reference
         Consent as of August 21, 1998, between
         Focal Communications Corporation with
         Madison Dearborn Capital Partners, L.P.,
         Frontenac VI, L.P., Battery Ventures III,
         L.P., Brian F. Addy, John R. Barnicle,
         Joseph Beatty and Robert C. Taylor, Jr.,
         dated as of August 21, 1998. (Incorporated
         by reference to Exhibit No. 4.6 of the 3rd
         Quarter 1998 10-Q)

  4.12   Form of Restricted Stock Agreement, dated    Incorporated by reference
         September 30, 1998 between Focal
         Communications Corporation and each of
         Brian F. Addy, John R. Barnicle, Joseph
         Beatty, and Robert C. Taylor, Jr.
         (Incorporated by reference to Exhibit No.
         4.7 of the 3rd Quarter 1998 10-Q)

  4.13   Stockholders Agreement with Madison          Incorporated by reference
         Dearborn Capital Partners, L.P., Frontenac
         VI, L.P., Battery Ventures III, L.P.,
         Brian F. Addy, John R. Barnicle, Joseph
         Beatty, and Robert C. Taylor Jr., dated
         November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.11 of the S-4)

  4.14   Amendment No. 1 to Stockholders Agreement    Incorporated by reference
         with Madison Dearborn Capital Partners,
         L.P., Frontenac VI, L.P., Battery Ventures
         III, L.P., Brian F. Addy, John R.
         Barnicle, Joseph Beatty and Robert C.
         Taylor, Jr., dated as of July 7, 1998.
         (Incorporated by reference to Exhibit No.
         4.9 of the 3rd Quarter 1998 10-Q)

  4.15   Amendment No. 2 to Stockholders Agreement    Incorporated by reference
         with Madison Dearborn Capital Partners,
         L.P., Frontenac VI, L.P., Battery Ventures
         III, L.P., Brian F. Addy, John R.
         Barnicle, Joseph Beatty and Robert C.
         Taylor, Jr., dated as of August 21, 1998.
         (Incorporated by reference to Exhibit No.
         4.10 of the 3rd Quarter 1998 10-Q)

</TABLE>

<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number              Exhibit Description                      Location
 ------- ------------------------------------------   -------------------------
 <C>     <S>                                          <C>
  4.16   Amendment No. 3 to Stockholders Agreement    Incorporated by reference
         with Madison Dearborn Capital Partners,
         L.P., Frontenac VI, L.P., Battery Ventures
         III, L.P., Brian F. Addy, John R.
         Barnicle, Joseph Beatty, and Robert C.
         Taylor, Jr., dated February 16, 1999.
         (Incorporated by reference to Exhibit No.
         4.16 to the 1998 10-K)

  4.17   Executive Stock Agreement and Employment     Incorporated by reference
         Agreement with Brian F. Addy, dated
         November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.12 of the S-
         4)++.

  4.18   Executive Stock Agreement and Employment     Incorporated by reference
         Agreement with John R. Barnicle, dated
         November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.13 of the S-
         4)++.

  4.19   Executive Stock Agreement and Employment     Incorporated by reference
         Agreement with Joseph A. Beatty, dated
         November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.14 of the S-
         4)++.

  4.20   Executive Stock Agreement and Employment     Incorporated by reference
         Agreement with Robert C. Taylor, Jr.,
         dated November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.15 of the S-
         4)++.

  4.21   Amendment No. 1 to Executive Employment      Incorporated by reference
         Agreement and Consent with Brian F. Addy,
         dated as of August 21, 1998. (Incorporated
         by reference to Exhibit No. 4.11 of the
         3rd Quarter 1998 10-Q)++

  4.22   Amendment No. 1 to Executive Employment      Incorporated by reference
         Agreement and Consent with John R.
         Barnicle, dated as of August 21, 1998.
         (Incorporated by reference to Exhibit No.
         4.12 of the 3rd Quarter 1998 10-Q)++.

  4.23   Amendment No. 1 to Executive Employment      Incorporated by reference
         Agreement and Consent with Joseph Beatty,
         dated as of August 21, 1998. (Incorporated
         by reference to Exhibit No. 4.13 of the
         3rd Quarter 1998 10-Q)++.

  4.24   Amendment No. 1 to Executive Employment      Incorporated by reference
         Agreement and Consent with Robert C.
         Taylor, Jr., dated as of August 21, 1998.
         (Incorporated by reference to Exhibit No.
         4.14 of the 3rd Quarter 1998 10-Q)++.

  4.25   Registration Agreement with Madison          Incorporated by reference
         Dearborn Capital Partners, L.P., Frontenac
         VI, L.P., Battery Ventures III, L.P.,
         Brian F. Addy, John R. Barnicle, Joseph
         Beatty, and Robert C. Taylor Jr., dated
         November 27, 1996. (Incorporated by
         reference to Exhibit No. 4.16 of the S-4)

  4.26   Amendment No. 1 to Registration Agreement    Incorporated by reference
         with Madison Dearborn Capital Partners,
         L.P., Frontenac VI, L.P., Battery Ventures
         III, L.P., Brian F. Addy, John R.
         Barnicle, Joseph Beatty and Robert C.
         Taylor, Jr., dated as of August 21, 1998.
         (Incorporated by reference to Exhibit No.
         4.15 of the 3rd Quarter 1998 10-Q)

  5.1    Opinion of Jones, Day, Reavis & Pogue        To be filed by Amendment
         regarding validity of shares.

 10.1    Interconnection Agreement with Ameritech     Incorporated by reference
         Information Industry Services, dated
         October 28, 1996. (Incorporated by
         reference to Exhibit No. 10.1 of the S-4)
</TABLE>

<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number              Exhibit Description                      Location
 ------- ------------------------------------------   -------------------------
 <C>     <S>                                          <C>
 10.2    Interconnection Agreement with Ameritech     Incorporated by reference
         Information Industry Services, dated
         October 31, 1997. (Incorporated by
         reference to Exhibit No. 10.2 of the S-4)

 10.3    Interconnection Agreement with New York      Incorporated by reference
         Telephone Company, dated November 10,
         1997. (Incorporated by reference to
         Exhibit No. 10.3 of the S-4)

 10.4    Amended and Restated Interconnection         Incorporated by reference
         Agreement with Ameritech Information
         Industry Services, dated March 16, 1998.
         (Incorporated by reference to Exhibit No.
         10.4 of the 1998 S-4)

 10.5    Interconnection Agreement with Bell          Incorporated by reference
         Atlantic--Pennsylvania, dated April 27,
         1998. (Incorporated by reference to
         Exhibit No. 10.26 of the
         S-4)

 10.6    Interconnection Agreement with Bell          Incorporated by reference
         Atlantic--Delaware, dated April 27, 1998.
         (Incorporated by reference to Exhibit No.
         10.25 of the S-4)

 10.7    Interconnection Agreement with Bell          Incorporated by reference
         Atlantic--New Jersey, dated April 27,
         1998. (Incorporated by reference to
         Exhibit No. 10.24 of the S-4)

 10.8    Interconnection Agreement with GTE--         Incorporated by reference
         California, dated June 12, 1998.
         (Incorporated by reference to Exhibit No.
         10.23 of the S-4)

 10.9    Interconnection Agreement with Pacific       Incorporated by reference
         Bell, dated June 15, 1998. (Incorporated
         by reference to Exhibit No. 10.22 of the
         S-4)

 10.10   Interconnection Agreement with Bell-         Incorporated by reference
         Atlantic--District of Columbia dated
         October 1, 1998. (Incorporated by
         reference to Exhibit No. 10.1 to Focal's
         Quarterly Report on Form 10-Q for the
         Period Ended March 31, 1999 (the "1st
         Quarter 1999 10-Q"))

 10.11   Interconnection Agreement with Bell-         Incorporated by reference
         Atlantic--Maryland dated October 2, 1998.
         (Incorporated by reference to Exhibit No.
         10.2 to the 1st Quarter 1999 10-Q)

 10.12   Interconnection Agreement with Bell          Incorporated by reference
         Atlantic--Virginia dated October 2, 1998.
         (Incorporated by reference to Exhibit No.
         10.3 to the 1st Quarter 1999 10-Q)

 10.13   Interconnection Agreement with U.S. West--   Incorporated by reference
         Washington State dated January 15, 1999.
         (Incorporated by reference to Exhibit No.
         10.4 to the 1st Quarter 1999 10-Q)

 10.14   Interconnection Agreement with Ameritech     Incorporated by reference
         Information Industry Services, on behalf
         of and as agent for Ameritech Michigan
         dated February 10, 1999. (Incorporated by
         reference to Exhibit No. 10.5 to the 1st
         Quarter 1999 10-Q)

 10.15   Interconnection Agreement with Bell          Incorporated by reference
         Atlantic--Massachusetts dated February 15,
         1999. (Incorporated by reference to
         Exhibit No. 10.6 to the 1st Quarter 1999
         10-Q)

 10.16   First Amendment to the Interconnection       Incorporated by reference
         Agreement with Ameritech Information
         Industry Services, dated September 8,
         1998. (Incorporated by reference to
         Exhibit No. 10.1 of the 3rd Quarter 1998
         10-Q)

</TABLE>

<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number              Exhibit Description                      Location
 ------- ------------------------------------------   -------------------------
 <C>     <S>                                          <C>
 10.17   Network Products Purchase Agreement with     Incorporated by reference
         Northern Telecom Inc., dated January 21,
         1997. (Incorporated by reference to
         Exhibit No. 10.5 of the S-4)*

 10.18   Amendments No. 1 and No. 2 to Network        Incorporated by reference
         Products Purchase Agreement with Northern
         Telecom Inc., both dated March 6, 1998.
         (Incorporated by reference to Exhibit No.
         10.6 of the S-4)*

 10.19   Amendment No. 3 to Network Products          Incorporated by reference
         Purchase Agreement with Northern Telecom
         Inc., dated March 25, 1999. (Incorporated
         by reference to Exhibit No. 10.7 to the
         1st Quarter 1999 10-Q)*

 10.20   Software License with DPI/TFS, Inc., dated   Incorporated by reference
         April 10, 1997. (Incorporated by reference
         to Exhibit No. 10.17 of the S-4)*

 10.21   Second Amendment to Lease Agreement for      Incorporated by reference
         property located at 200 North LaSalle,
         Chicago, IL, dated November 15, 1997.
         (Incorporated by reference to Exhibit No.
         10.9 of the S-4)

 10.22   Lease Agreement for property located at      Incorporated by reference
         200 North LaSalle, Chicago, IL, dated
         December 31, 1996. (Incorporated by
         reference to Exhibit No. 10.7 of the S-4)

 10.23   First Amendment to Lease Agreement for       Incorporated by reference
         property located at 200 North LaSalle,
         Chicago, IL, dated May 14, 1997.
         (Incorporated by reference to Exhibit No.
         10.8 of the S-4)

 10.24   Loan and Security Agreement with NTFC        Incorporated by reference
         Capital Corporation dated December 30,
         1998. (Incorporated by reference to
         Exhibit No. 10.17 of the 1998 10-K)*

 10.25   Amendment No. 1 to Loan and Security         Previously filed
         Agreement with NTFC Capital Corporation
         dated as of April 15, 1999.

 10.26   Purchase Agreement with XCOM Technologies,   Incorporated by reference
         Inc., dated January 6, 1999. (Incorporated
         by reference to Exhibit No. 10.8 to the
         1st Quarter 1999 10-Q)*

 10.27   Third Amendment to Lease Agreement for       Incorporated by reference
         property located at 200 North LaSalle,
         Chicago, IL, dated March 2, 1998.
         (Incorporated by reference to Exhibit No.
         10.10 of the S-4)

 10.28   Fourth Amendment to Lease Agreement for      Incorporated by reference
         property located at 200 North LaSalle,
         Chicago, IL, dated April 4, 1998.
         (Incorporated by reference to Exhibit No.
         10.18 of the S-4)

 10.29   Fifth Amendment to Lease Agreement for       Incorporated by reference
         property located at 200 North LaSalle,
         Chicago, IL, dated October 14, 1998.
         (Incorporated by reference to Exhibit No.
         10.9 to the 1st Quarter 1999 10-Q)

 10.30   Sixth Amendment to Lease Agreement for       Incorporated by reference
         property located at 200 North LaSalle,
         Chicago, IL, dated February 18, 1999.
         (Incorporated by reference to Exhibit No.
         10.10 to the 1st Quarter 1999 10-Q)

 10.31   Lease Agreement for property located at 32   Incorporated by reference
         Old Slip, New York, NY, dated May 20,
         1997. (Incorporated by reference to
         Exhibit No. 10.11 of the S-4)

</TABLE>

<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number              Exhibit Description                      Location
 ------- ------------------------------------------   -------------------------
 <C>     <S>                                          <C>
 10.32   Lease Agreement for property located at      Incorporated by reference
         650 Townsend Street, San Francisco, CA,
         dated January 26, 1998. (Incorporated by
         reference to Exhibit No. 10.12 of the S-4)

 10.33   First Amendment to Lease Agreement for       Incorporated by reference
         property located at 650 Townsend Street,
         San Francisco, CA, dated March 3, 1998.
         (Incorporated by reference to Exhibit No.
         10.11 to the 1st Quarter 1999 10-Q)

 10.34   Second Amendment to Lease Agreement for      Incorporated by reference
         property located at 650 Townsend Street,
         San Francisco, CA, dated June 16, 1998.
         (Incorporated by reference to Exhibit No.
         10.12 to the 1st Quarter 1999 10-Q)

 10.35   Third Amendment to Lease Agreement for       Incorporated by reference
         property located at 650 Townsend Street,
         San Francisco, CA, dated February 16,
         1999. (Incorporated by reference to
         Exhibit No. 10.13 to the 1st Quarter 1999
         10-Q)

 10.36   Lease Agreement for property located at      Incorporated by reference
         701 Market Street, Philadelphia,
         Pennsylvania, dated March 10, 1998.
         (Incorporated by reference to Exhibit No.
         10.13 of the S-4)

 10.37   Lease Agreement for property located at      Incorporated by reference
         1120 Vermont Avenue, NW., Washington,
         D.C., dated as of May 4, 1998.
         (Incorporated by reference to Exhibit No.
         10.19 of the S-4)

 10.38   First Amendment to Lease Agreement for       Incorporated by reference
         property located at 1120 Vermont, NW,
         Washington, D.C., dated July 23, 1998.
         (Incorporated by reference to Exhibit No.
         10.6 of the 3rd Quarter 1998 10-Q)

 10.39   Lease Agreement for property located at      Incorporated by reference
         1200 West Seventh Street, Los Angeles,
         California, dated as of May 19, 1998.
         (Incorporated by reference to Exhibit No.
         10.20 of the 1998 S-4)

 10.40   First Amendment to Lease Agreement for       Incorporated by reference
         property located at 1200 West 7th Street,
         Los Angeles, CA, dated July 8, 1998.
         (Incorporated by reference to Exhibit No.
         10.5 of the 3rd Quarter 1998 10-Q)

 10.41   Lease Agreement for property located at      Incorporated by reference
         1511 6th Avenue, Seattle, WA, dated August
         7, 1998. (Incorporated by reference to
         Exhibit No. 10.2 of the 3rd Quarter 1998
         10-Q)

 10.42   Lease Agreement for property located at      Incorporated by reference
         23800 West Ten Mile Road, Southfield, MI,
         dated August 31, 1998. (Incorporated by
         reference to Exhibit No. 10.3 of the 3rd
         Quarter 1998 10-Q)

 10.43   Lease Agreement for property located at      Incorporated by reference
         One Penn Plaza, New York, NY, dated
         September 25, 1998. (Incorporated by
         reference to Exhibit No. 10.4 of the 3rd
         Quarter 1998 10-Q)

 10.44   Lease Agreement for property located at      Incorporated by reference
         1950 Stemmons Freeway, Dallas, TX, dated
         December 15, 1998. (Incorporated by
         reference to Exhibit No. 10.14 to the 1st
         Quarter 1999 10-Q)

 10.45   Lease Agreement for property located at      Incorporated by reference
         One Main Street, Cambridge, MA, dated
         January 6, 1999. (Incorporated by
         reference to Exhibit No. 10.15 to the 1st
         Quarter 1999 10-Q)

</TABLE>

<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number              Exhibit Description                      Location
 ------- ------------------------------------------   -------------------------
 <S>     <C>                                          <C>
 10.46   Lease Agreement for property located at      Incorporated by reference
         250 Williams Street, Atlanta, GA, dated
         February 5, 1999. (Incorporated by
         reference to Exhibit No. 10.16 to the 1st
         Quarter 1999 10-Q)

 10.47   Lease Agreement for property located at      Incorporated by reference
         Christopher Columbus Drive & Washington
         Street, Jersey City, NJ, dated February
         19, 1999. (Incorporated by reference to
         Exhibit No. 10.17 to the 1st Quarter 1999
         10-Q)

 10.48   Employment Agreement with Renee M. Martin,   Incorporated by reference
         dated March 20, 1998. (Incorporated by
         reference to Exhibit No. 10.16 of the S-
         4).

 10.49   Amendment No. 1 to Executive Employment      Incorporated by reference
         Agreement with Renee M. Martin, dated as
         of August 21, 1998. (Incorporated by
         reference to Exhibit No. 10.10 of the 3rd
         Quarter 1998 10-Q).

 10.50   1997 Nonqualified Stock Option Plan,         Incorporated by reference
         amended and restated as of August 21,
         1998. (Incorporated by reference to
         Exhibit No. 10.7 of the 3rd Quarter 1998
         10- Q).

 10.51   Form of Amended and Restated Stock Option    Incorporated by reference
         Agreement. (Incorporated by reference to
         Exhibit No. 10.33 of the 1998 10-K).

 10.52   1998 Equity and Performance Incentive        Incorporated by reference
         Plan. (Incorporated by reference to
         Exhibit No. 10.8 of the 3rd Quarter 1998
         10-Q).

 10.53   1998 Equity Plan for Non-Employee            Incorporated by reference
         Directors. (Incorporated by reference to
         Exhibit No. 10.9 of the 3rd Quarter 1998
         10-Q).

 10.54   Agreement for Sale of Real Property          Incorporated by reference
         between Focal Communications Corporation
         and United Air Lines, Inc. dated August
         13, 1998. (Incorporated by reference to
         Exhibit No. 10.36 of the 1998 10-K)

 10.55   IRU Agreement dated April 28, 1999, by and   Previously filed
         between Focal Financial Services, Inc. and
         Level 3 Communications, LLC.*

 10.56   Private Line Service Agreement, dated May    Previously filed
         4, 1999, between Focal Communications
         Corporation and WorldCom Technologies,
         Inc.*

 10.57   Fiber Optic Network leased Fiber Agreement   Filed herewith
         between Metromedia Fiber Network Services,
         Inc. and Focal Financial Services, Inc.
         dated as of May 24, 1999.*

 21.1    Subsidiaries of the Registrant.              Incorporated by reference
         (Incorporated by reference to Exhibit
         No. 21.1 to the 1998 10-K)

 23.1    Consent of Arthur Andersen LLP.              Previously filed

</TABLE>
<PAGE>

<TABLE>
<CAPTION>
 Exhibit
 Number             Exhibit Description                      Location
 ------- -----------------------------------------   ------------------------
 <C>     <S>                                         <C>
 23.2    Consent of Jones, Day, Reavis & Pogue.      To be filed by amendment
         (included as part of its opinion filed as
         Exhibit 5.1)

 24.1    Powers of Attorney.                         Previously filed
</TABLE>
- --------
*  Portions of this exhibit have been omitted pursuant to a request for
   confidential treatment, and the omitted portions have been filed separately
   with the Securities and Exchange Commission
++ Management Contract or Compensatory Plan

<PAGE>

                                                                   Exhibit 10.57

                  Fiber Optic Network Leased Fiber Agreement
                                 Product Order

This Product Order ("Product Order") together with the General Terms and
Conditions constitute the Fiber Optic Private Network Agreement ("Agreement")
which is effective as of May 24, 1999 by and between Metromedia Fiber Network
Services, Inc. ("MFN"), One North Lexington Ave., Fourth Floor, White Plains,
New York 10601, and Focal Financial Services, Inc. ("Carrier"), 200 North
LaSalle St., Chicago, Illinois 60601. Definitions of terms used in this
Agreement appear in this Product Order and in the General Terms and Conditions.

Carrier hereby orders and MFN hereby agrees to provide Leased Fiber as follows:

     1.   Lease Term:  240 Months

     2.   Number of Leased Fibers:  To Be Determined

     3.   Number of Leased Fiber Miles:  Two Thousand Five Hundred Miles (2,500)

     4.   Carrier locations ("Location(s)"):  To Be Determined

     5.   Specifications pertinent to the Leased Fiber:  To be provided as
          attachment, including as-built drawings.

     6.   Installation Charge and Monthly Lease Payments:

          6.1  One Time Installation Charge                ***
          6.2  Monthly Lease Payments                      ***
               subject to such tolling and discounting
               as hereinafter provided

          Applicable Taxes (as defined in the Agreement) on the Installation
          Charge and all Lease Payments are to be paid by Carrier as and when
          due.

     7.   Estimated Installation Completion Dates:  To be provided as
          attachment.

     8.   Early Termination Charge:

          In the event of termination of this Product Order pursuant to Section
          11.2 of the General Terms and Conditions of this Agreement, Carrier
          will pay to MFN an Early Termination Charge (plus Applicable Taxes)
          for the Leased Fiber determined as follows:

          1st year termination - *** of all unpaid Leased Fiber Monthly Lease
          Payments for the first year, plus *** of all unpaid Leased Fiber
          Monthly Lease Payments for the second year, plus *** of all unpaid
          Leased Fiber Monthly Lease Payments for the third year, plus *** of
          all unpaid Leased Fiber Monthly Lease Payments for the fourth year,
          plus *** of all unpaid Leased Fiber Monthly Lease Payments for the
          fifth year, plus *** of all unpaid Leased Fiber Monthly Lease Payments
          for the sixth through twentieth years.

          2nd year termination - *** of all unpaid Leased Fiber Monthly Lease
          Payments for the second year, plus *** of all unpaid Leased Fiber
          Monthly Lease Payments for the third year, plus *** of all unpaid
          Leased Fiber Monthly Lease Payments for the fourth year, plus *** of
          all unpaid Leased Fiber Monthly Lease Payments for the fifth year,
          plus *** of all unpaid Leased Fiber Monthly Lease Payments for the
          sixth through twentieth years.

          3rd year termination - *** of all unpaid Leased Fiber Monthly Lease
          Payments for the third year, plus *** of all unpaid Leased Fiber
          Monthly Lease Payments for the fourth year, plus *** of all unpaid
          Leased Fiber Monthly Lease Payments for the fifth year, plus

  ***Portions of this exhibit have been omitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.

<PAGE>

          *** of all unpaid Leased Fiber Monthly Lease Payments for the sixth
          through twentieth years.

          4th year termination - *** of all unpaid Leased Fiber Monthly Lease
          Payments for the fourth year, plus *** of all unpaid Leased Fiber
          Monthly Lease Payments for the fifth year, plus *** of all unpaid
          Leased Fiber Monthly Lease Payments for the sixth through twentieth
          years.

          5th year termination - *** of all unpaid Leased Fiber Monthly Lease
          Payments for the fifth year, plus *** of all unpaid Leased Fiber
          Monthly Lease Payments for the sixth through twentieth years.

          6th through 20th year termination - *** of all unpaid Leased Fiber
          Monthly Lease Payments for the remaining Lease Term of this Product
          Order.

          If Carrier has not yet leased two thousand five hundred (2,500) fiber
          miles from MFN hereunder as of the date of any termination, then such
          termination shall be calculated as if Carrier has leased two thousand
          five hundred (2,500) fiber miles at the per fiber mile per month price
          set forth in Section 9.1(b) of this Product Order, without application
          of the discount set forth in Section 9.2(a) below.

     9.   Fiber, Locations and Requirements

          9.1  Carrier acknowledges and agrees that within twelve (12) months of
               the effective date of this Agreement, Carrier will place product
               orders to lease from MFN for a term of two hundred forty (240)
               months Leased Fiber subject to the terms and conditions of this
               Agreement totaling at least two thousand five hundred (2,500)
               fiber miles in at least *** metropolitan areas where MFN has or
               reasonably expects to have within such twelve (12) month period
               an installed fiber optic network.

               (a)  For the purposes of this Agreement, fiber miles will be
                    calculated by multiplying the physical mileage of Carrier's
                    Leased Fiber route(s) by the quantity of Leased Fiber along
                    the same route(s).

               (b)  The monthly lease payment for initial two thousand five
                    hundred (2,500) Leased Fiber fiber miles that MFN leases to
                    Carrier within twelve (12) months of the effective date of
                    this Agreement shall be *** per fiber mile per month.

               (c)  Carrier further acknowledges and agrees that it shall be
                    liable to MFN for any difference that may exist between the
                    monthly lease payment for two thousand five hundred (2,500)
                    fiber miles and Carrier's actual total Leased Fiber fiber
                    miles twelve (12) months after the effective date of this
                    Agreement (the "Contract Balance"). Carrier will not be
                    liable for payment of any shortfalls due to MFN's inability
                    to deliver fiber in accordance with a product order. If such
                    difference exists, MFN will provide Carrier written notice
                    of the deficiency eleven (11) months after the effective
                    date of this Agreement and Carrier will then have thirty
                    (30) days to request additional fiber subject to the terms
                    and conditions of this Agreement necessary to achieve two
                    thousand five hundred (2,500) Leased Fiber fiber miles. If
                    after twelve (12) months from the effective date of this
                    Agreement Carrier still has not placed orders to lease from
                    MFN Leased Fiber totaling two thousand five hundred (2,500)
                    fiber miles, MFN will invoice and Carrier will pay a monthly
                    lease payment each month for a term of two hundred forty
                    (240) months equal to the Contract Balance multiplied by ***
                    per fiber mile per month commencing at the beginning of the
                    thirteenth (13th) month after the effective date

  ***Portions of this exhibit have been ommitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.


<PAGE>

               of this Agreement. Any such amount will be subject to an early
               termination charge as set forth in Section 8.

          (d)  In no event shall Carrier be obligated to lease Leased Fiber from
               MFN in excess of two thousand five hundred (2,500) fiber miles.

     9.2  Carrier will, from time to time, request fiber pursuant to the terms
          and provisions hereof, by providing MFN with one or more written
          notices. Each such notice shall indicate the number of fibers, the MFN
          metropolitan market and Carrier's proposed Locations. Within thirty
          (30) days after receipt of such notice, MFN will respond to Carrier
          with a product order confirming the availability, the monthly lease
          payment, the one time installation charge and the estimated
          installation completion date for the requested fiber. Carrier may
          request fiber in any metropolitan area that MFN has or reasonably
          expects to have within twelve (12) months of the effective date of
          this Agreement an installed fiber optic network. Carrier will execute
          and return to MFN each such product order within ten (10) days of
          receipt thereof.

          (a)  MFN shall discount by *** the first *** monthly lease payments
               for Leased Fiber ordered within *** months of the effective date
               of this Agreement.

     9.3  MFN commits to provide Carrier for twelve (12) months after the
          effective date of this Agreement up to *** fiber strands along any MFN
          network ring. Subject to fiber availability, MFN will use commercially
          reasonable efforts to honor Carrier's requests for fiber in excess of
          *** strands along any MFN network ring. In no event shall MFN be
          required to lease to Carrier more than *** fiber strands in any single
          MFN network ring.

     9.4  Carrier may request that MFN add the following wire centers to any
          Leased Fiber in the applicable metropolitan area:

     CHCGILWB, CHCGILLR, CHCGILID, CHCGILSU, CHCGILSU, CHCGILFR, CHCGILCL,
     NYCMNY13, NYCMNY18, NYCMN30, NYCMNY36, NYCMN37, NYCMN42, NYCMN50, NYCMN56,
     NYCMN79, NYCMNBS, NYCMNVS, NYCMNYWS, JRCYNJBR, LSANCA02, LSANCA03,
     LSANCA04, LSANCA07, LSANCA10, LSANCA11, SNFCCA01, SNFCCA04, SNFCCA12,
     SNFCCA21, PHLAPALO, PHLAPAPE, PHLAPATR, PHLAPAEV, PHLAPAMK, WASHDCMT,
     WASHDCMO, WASHDCDN, WASHDCSW, BSTNMABE, BSTNMABO, BSTNMAHA, BSTNMAFR,
     CMBRMABE, DLLSTXRI, DLLSTXTA, DLLSTXRO, DLLSTXLA

     There shall be *** installation charge for the addition of each wire
     center.9.5 Carrier may request that MFN add the following Carrier locations
     for the indicated one time installation charge:

<TABLE>
<CAPTION>
         --------------------------------------------------------------
                     Carrier Location                     Non-recurring
                                                              Price
         --------------------------------------------------------------
         <S>                                              <C>
         Focal Communications Corp., of Illinois
         200 N. LaSalle Street
         Chicago, Illinois 60601                            $     ***
         --------------------------------------------------------------
         Focal Communications Corp., of Illinois
         1305 E. Algonquin Road
         Elk Grove Township, Illinois 60007                 $     ***
         --------------------------------------------------------------
         Focal Communications Corp., of New York
         Financial Square
         32 Old Slip, Suite # 400
         New York, New York 10005                           $     ***
         --------------------------------------------------------------
</TABLE>

  ***Portions of this exhibit have been omitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.

<PAGE>

<TABLE>
<S>                                                             <C>

         --------------------------------------------------------------
         Focal Communications Corp., of Pennsylvania
         Mellon Independence Center
         701 Market Street
         Philadelphia, Pennsylvania 19106                    $     ***
         --------------------------------------------------------------
         Focal Communications Corp., of Washington D.C.
         1120 Vermont Avenue, NW., Terrace Level
         Washington, D.C. 20005-3523                         $     ***
         --------------------------------------------------------------
         Focal Communications Corp., of California
         The Garland Center
         1200 West 7th Street #L2,250
         Los Angeles, California 90017                       $     ***
         --------------------------------------------------------------
         Focal Communications Corp., of California
         Townsend Center
         650 Townsend, Suite 200                             $     ***
         San Francisco, California 94103
         --------------------------------------------------------------
         Focal Communications Corp., of Washington
         1511 6th Avenue, 2nd Floor
         Seattle, Washington 98101                           $     ***
         --------------------------------------------------------------
         Focal Communications Corp., of Massachusetts
         Riverfront Office Park
         One Main Street, 11th Floor
         Cambridge, Massachusetts 02142                      $     ***
         --------------------------------------------------------------
         Focal Communications Corp., Texas
         INFOMART
         1950 Stemmons Freeway, Suite 6060
         Dallas, Texas 75207                                 $     ***
         --------------------------------------------------------------
         Focal Communications Corp., of New Jersey
         One Evertrust Plaza, 17th  Floor
         Christopher Columbus Dr. and Washington St.
         Jersey City, New Jersey 07302                       $     ***
         --------------------------------------------------------------
</TABLE>

     9.6  For a period of thirty-six (36) months after the effective date of
          this Agreement and provided Carrier is not in any material breach of
          this Agreement, this Agreement is in full force and effect, and
          Carrier has leased and continues to lease at least twenty five hundred
          (2,500) fiber miles within twelve (12) months of the effective date of
          this Agreement pursuant to the terms and conditions of this Agreement,
          the price for each additional fiber mile that MFN leases to Carrier on
          MFN Networks shall be determined in as follows:
<TABLE>
<CAPTION>
                                           Incremental
                                          $/Fiber Mile/
                            Fiber Mile       Month

                          ----------------------------
                           <S>           <C>
                            2,501- 3,750       $***
                           ---------------------------
                            3,751- 5,000       $***
                           ---------------------------
                            5,001- 6,250       $***
                           ---------------------------
                            6,251- 7,500       $***
                           ---------------------------
                            7,501- 8,750       $***
                           ---------------------------
                            8,751-10,000       $***
                           ---------------------------
                           10,001-11,250       $***
                           ---------------------------
                           11,251-12,500       $***
                           ---------------------------
                           12,501-13,750       $***
                           ---------------------------
                           13,751-15,000       $***
                           ---------------------------
                           15,001-16,250       $***
                           ---------------------------
                           16,251-17,500       $***
                           ---------------------------
                           17,501-18,750       $***
                           ---------------------------
</TABLE>

  ***Portions of this exhibit have been omitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.

<PAGE>

<TABLE>
<CAPTION>
                          <S>                   <C>
                          ----------------------------
                          18,751-20,000         $***
                          ----------------------------
                          20,001-21,250         $***
                          ----------------------------
                          21,251-22,500         $***
                          ----------------------------
                          22,501-23,750         $***
                          ----------------------------
                          23,751-25,000         $***
                          ----------------------------
                          25,001-26,250         $***
                          ----------------------------
                          26,251-27,500         $***
                          ----------------------------
                          27,501-28,750         $***
                          ----------------------------
                          28,751-30,000         $***
                          ----------------------------
                          Greater than 30,000   $***
                          ----------------------------
</TABLE>

     9.7  Provided Carrier is not in any material breach of this Agreement, this
          Agreement is in full force and effect, and Carrier has leased and
          continues to lease at least *** fiber miles within thirty-six (36)
          months of the effective date of this Agreement, then MFN will extend
          the pricing set forth in Section 9.6 above for one additional thirty-
          six (36) month period.

  ***Portions of this exhibit have been omitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.


<PAGE>

     10.  MFN address (and contact person) is as follows:

          Metromedia Fiber Network Services, Inc.
          One North Lexington Ave., Fourth Floor
          White Plains, NY 10601
          Attn.: Vice President - Marketing

          For purposes of declaring a default or termination, a copy of the
          notice must be sent to:

          Vice President - Legal Affairs
          Metromedia Fiber Network Services, Inc.
          One North Lexington Ave., Fourth Floor
          White Plains, NY 10601

          Carrier address (and contact person) is as follows:

          Focal Financial Services, Inc.
          200 North LaSalle Street, Suite 1100
          Chicago, IL 60601
          Attn: Chief Operating Officer

          For purposes of declaring a default or termination, a copy of the
          notice must be sent to:

          General Counsel
          Focal Financial Services, Inc.
          200 North LaSalle Street, Suite 1100
          Chicago, IL 60601


Metromedia Fiber Network Services, Inc.         Focal Financial Services, Inc.


By: /s/ Nicholas M. Tanzi                       By: /s/ Dan Montgomery
    ----------------------                          ----------------------------
      Nicholas M. Tanzi                                    Dan Montgomery
      Vice President                                       Vice President
<PAGE>

                     Fiber Optic Private Network Agreement
                     -------------------------------------

                         General Terms and Conditions


1.  TERM AND LEASE
    --------------

1.1  MFN hereby leases to Carrier optical fiber ("Leased Fiber") on MFN's fiber
     optic cable network ("Network") and/or constructed and installed
     specifically for Carrier and the equipment and interfaces described in the
     Product Order ("Equipment"), as provided in the Product Order. The Leased
     Fiber and Equipment leased by Carrier will be referred to as the "Product".
     The lease term ("Lease Term") and other specific terms pertaining to the
     Product are set forth in the Product Order. The term "Party" will refer,
     individually, to either MFN or Carrier and the term "Parties" will refer to
     both of them. The term "Agreement" will mean and include the Product Order
     and all Exhibits thereto and these General Terms and Conditions.

1.2  MFN will use commercially reasonable efforts to complete installation of
     and provide Carrier with access to the Product on or about the Estimated
     Installation Completion Date specified in the Product Order at the
     Locations specified in the Product Order ("Turnover Date"). For a period of
     time not to exceed ten (10) business days after the Turnover Date (the
     "Acceptance Test Period"), Carrier will conduct such testing as it
     reasonably deems necessary to ensure that the Product conforms in all
     material respects to the material technical specifications set forth in the
     relevant Exhibits ("Specifications"). Carrier will use commercially
     reasonable efforts to complete such acceptance testing and notify MFN in
     writing within five (5) business days after the Turnover Date, but in any
     event within the Acceptance Test Period, of acceptance or of any
     "Deficiencies" (as defined herein) in the Product. Deficiencies exist if
     the Product does not conform in all material respects to the relevant
     Specifications. Upon receipt of such notification from Carrier, MFN will
     promptly undertake correction of such Deficiencies and restore access to
     and use of the Product to Carrier. The "Service Date," whereupon the Lease
     Term commences, will be the earlier of (i) completion of testing and
     acceptance of Product by Carrier, (ii) expiration of the Acceptance Test
     Period or, (iii) if Carrier has identified Deficiencies, then the first
     date upon which Product conforms in all material respects with the relevant
     Specifications.

1.3  Carrier will obtain all necessary approvals for access into the Location
     buildings from the building entry point and for the use of any required
     building riser conduit or other required building facilities at all
     Locations. MFN will obtain all necessary approvals for access from the MFN
     Network to the applicable Location buildings up to the building entry
     point. Unless otherwise provided for in the Product Order, if there is no
     existing and available riser conduit or other required facilities within
     such buildings then MFN will perform all construction and installation of
     such riser conduit and Carrier will reimburse MFN for the entire cost to
     construct and install such riser conduit *** plus applicable sales or other
     taxes.

1.4  Upon the expiration of the Lease Term, or any earlier termination of this
     Agreement, Carrier will promptly remove from any property owned, leased or
     licensed by MFN all Carrier property, equipment and other materials used in
     connection with the Product within forty five (45) days from such
     expiration or termination. Carrier will complete such removal in a manner
     that does not interfere with or damage the Product or the Network. If
     Carrier fails to remove its property within such period, such property will
     be deemed abandoned, and MFN will make such disposition of the property as
     it deems necessary or advisable at Carrier's sole expense.

  ***Portions of this exhibit have been omitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.

<PAGE>

2.  TERMS OF PAYMENT
    ----------------

2.1  Unless otherwise provided for in the Product Order, Carrier agrees to pay
     the One Time Installation Charge upon the execution of this Agreement.
     Carrier will also pay to MFN all applicable sales or other taxes other than
     taxes on or measured by MFN's income or capital, ("Applicable Taxes"),
     unless Carrier is eligible for an exemption and Carrier provides to MFN an
     exemption certificate or other documentation. Commencing on the Service
     Date for each Ring or segment thereof and continuing each month thereafter
     for the duration of the Lease Term, Carrier will pay the Monthly Lease
     Payment (and the Monthly Maintenance Payment for the Equipment, if
     applicable) plus Applicable Taxes in advance for each month. If service
     commences after the first day of any month or terminates before the last
     day of a month, then the payment for such partial month will be pro rated
     based on the number of days of the Lease Term during that month to the
     number of days in that month. Carrier will include such pro rata payment
     for the initial partial month in the first monthly payment at the
     commencement of the Lease Term. The Prepaid Lease Payment, if any, will be
     paid as provided in the Product Order.

2.2  A portion equal to *** of the Monthly Lease Payment for the Leased Fiber
     and any payment pursuant to the Collocation License, if any, (together, the
     "Payment") will be increased (but not decreased) each year during the Lease
     Term by the percentage increase, if any, in the Consumer Price Index -Urban
     Wage Earners and Clerical Workers (U.S. City Average, All Items, Base 1982-
     1984 equals 100) (the "Index"), as published by the United States
     Department of Labor, Bureau of Labor Statistics (the "Bureau"). The Index
     for the calendar month which is four (4) months prior to the Service Date
     will be compared with the Index for the calendar month which is four (4)
     months prior to each anniversary of the Service Date during the Lease Term
     and the Payment will be increased in accordance with the percentage
     increase, if any, between such Indexes.

2.3  If Carrier fails to pay any sum that is not disputed in good faith and in
     writing when due pursuant to this Agreement, then, in addition to such sum,
     Carrier will pay interest on such unpaid sum at the lower of the highest
     legal rate of interest permitted in the State of New York or one and one-
     half percent (1.5%) per month.


3.  MAINTENANCE, RESTORATION AND REPAIR OF THE NETWORK AND PRODUCT MONITORING
    -------------------------------------------------------------------------

3.1  MFN will provide remote monitoring of the Network and the Product to the
     extent that the Product is incorporated into the Network. MFN will use
     commercially reasonable efforts to maintain the Product in accordance with
     the Specifications (subject to reasonable wear and tear) and the Network in
     good operating condition at all times during the Lease Term. The foregoing
     maintenance will be at no additional charge to Carrier, except as set forth
     in Section 3.4 hereof.

3.2  An "Outage" will mean the complete interruption of communications or any
     other material degradation of service on one or more of Carrier's Leased
     Fibers resulting from physical damage to, or severance of, or a break in,
     or other failure of any Product. If an Outage on any Leased Fibers occurs
     Carrier will immediately notify MFN by telephone at (888) 636-2778 or
     through such other notification procedure as Parties may establish.
     Provided that MFN personnel or contractors have access to affected Carrier
     facilities immediately upon notification, MFN will respond and commence
     work within two (2) hours after the time of notification by Carrier and
     restore effective use of the Product as expeditiously as practicable, but
     in no event more than four (4) hours after receipt by MFN of Carrier's
     notification, subject to "Force Majeure" as provided in Section 11 hereof.

3.3  Except for any Outage caused by or resulting from (i) Force Majeure as set
     forth in Section 11 hereof; (ii) the act or omission of Carrier, its
     employees, agents or contractors; (iii) any of

  ***Portions of this exhibit have been omitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.

<PAGE>

          Carrier's equipment or facilities used in connection with the Product;
          or (iv) planned Outages by reason of Services which have been
          scheduled and approved in advance by Carrier ("Excepted Outages") in
          the event of an Outage, Carrier will receive from MFN a credit
          ("Outage Credit") calculated at *** of the Leased Fiber Monthly Lease
          Payment for the affected Leased Fiber strands for each four (4) hours
          of Outage, up to a maximum of the Leased Fiber Monthly Lease Payment
          for one (1) full month per Outage. Except in the case of a Prepaid
          Lease Payment or termination as provided in this Section 3.3, the
          Outage Credit will be applied against future payments which may become
          due and payable by Carrier to MFN. The Outage Credit will be
          determined by dividing the total Leased Fiber Monthly Lease Payment by
          the number of Locations and dividing this result by the number of
          Leased Fiber strands to determine the Leased Fiber Monthly Lease
          Payment per Leased Fiber Strand. This result is then multiplied by ***
          and by the number of four (4) hour Outage periods. For example, if the
          Leased Fiber Monthly Lease Payment for six (6) Locations is
          $60,000.00, the Leased Fiber Monthly Lease Payment for each Location
          would be $10,000.00, and if there were four (4) Leased Fiber strands
          for each Location, the result would be $2,500.00 per Fiber Strand. If
          the Outage affected two (2) strands at one Location for eight (8)
          hours, the Outage Credit would be $2,500 ***. The Outage Credit will
          be in the form of a cash payment to Carrier by MFN if this Agreement
          is terminated by either Party as provided in Section 3.4 hereof.
          Outage Credits will not be credited or payable for any period of time
          during which MFN personnel or contractors are denied access to Carrier
          Locations or other facilities to remedy an Outage.

     3.4  If an Outage occurs and continues for a period longer than four (4)
          days for any reason other than "Force Majeure" as defined in this
          Agreement, then at any time thereafter, unless and until such Outage
          is corrected, either Party can terminate this Agreement and the
          Product Order with respect to the Product subject to the Outage by
          written notice of such termination delivered to the other Party. If
          there are Outages that occur for a cumulative period of longer than
          three hundred sixty (360) hours in any thirty-six (36) month period
          for any reason other than "Force Majeure" (as defined in this
          Agreement), then at any time thereafter, unless and until the such
          Outage is corrected, either Party can terminate this Agreement and the
          Product Order with respect to the Product subject to the Outage by
          written notice of such termination delivered to the other Party.
          Notwithstanding the foregoing, if such Outage occurs and continues by
          reason of a breach by a Party of its obligations under this Agreement,
          such breaching Party will not have any right to terminate this
          Agreement. The Outage Credit and right to terminate will be the sole
          and exclusive remedy of Carrier and liability of MFN for any Outage
          regardless of the cause of such Outage.

     3.5  If all or part of the Product requires restoration, replacement or
          repair by reason of an act or omission of Carrier, its employees,
          agents, or contractors or any of Carrier's equipment or facilities
          used in connection with the Product, such repair, replacement and/or
          restoration will be made by MFN, at Carrier's sole expense, in
          accordance with MFN's then current time and materials rates plus
          Applicable Taxes. In addition, Carrier will not receive any Outage
          Credit by reason of the foregoing.

     3.6  MFN may assign or subcontract to any third party its performance
          obligations (including maintenance) under this Agreement and Product
          Order at any time, without the consent of Carrier, provided that MFN
          will remain obligated for such performance in accordance with the
          terms of this Agreement.

     3.7  MFN will have the right to inspect Carrier's use of the Product for
          maintenance and monitoring purposes at any time and from time to time
          during normal business hours upon at least twenty-four (24) hours
          prior notice by MFN.


     4.  USE AND OWNERSHIP OF THE PRODUCT
         --------------------------------

  ***Portions of this exhibit have been omitted pursuant to a request for
     confidential treatment, and the ommitted portions have been filed
     separately with the Securities and Exchange Commission.

<PAGE>

     4.1  Carrier will not, by itself or through any agent or contractor, make
          any repair to or replacement of the Product or the Network or any
          other equipment or facilities provided by MFN in connection with the
          Product or otherwise. Carrier will not install any equipment to be
          used with the Product or use the Product in any manner which damages
          or interferes with the Product or the Network.

     4.2  Carrier will use the Product in full compliance with all applicable
          federal, state and local laws, rules and regulations and all
          applicable franchises, rights of way, leases, licenses, contracts and
          other obligations to third parties with respects to the Network or
          Product. Carrier will obtain and maintain in effect during the Lease
          term all rights, leases, licenses, permits and governmental or non-
          governmental approvals necessary for use of the Product by Carrier and
          its customers.

     4.3  Carrier acknowledges and agrees that the Product is provided for use
          (1) exclusively by Carrier and/or affiliated entities which control or
          are controlled by or commonly controlled with Carrier ("Affiliates"),
          (2) customers of Carrier and (3) in either case only in the ordinary
          course of business of Carrier. For purposes of this Agreement, the
          ordinary course of Carrier's business shall not include the sale,
          leasing or granting of any rights of use in "dark fiber", as such term
          is commonly understood in the telecommunications industry. Carrier
          will not under any circumstances (a) permit or provide access to or
          use of the Product, in whole or part, to any third party (other than a
          customer of Carrier in the ordinary course of business of Carrier),
          pursuant to (by way of example and not in limitation) sublease,
          license, sublicense or resale, or any other right to use, or (b) share
          or otherwise utilize in conjunction with a third party (including
          without limitation in any joint venture or as part of any outsourcing
          activity) any of the Product. Any breach of this Section 4.3 will be
          deemed to be a material breach of this Agreement and in the event of
          such material breach MFN will have the right to immediately terminate
          this Agreement, any applicable Product Orders and Carrier's access to
          the Network, in addition to any and all rights and remedies.

     4.4  MFN retains all right, title and interest in and to the Product and
          the Network to the points within the locations specified in the
          Product Order at which MFN's facilities end and Carrier's facilities
          begin, subject only to the grant of access and use provided to Carrier
          pursuant to this Agreement.

     4.5  MFN reserves the right to utilize unused external building access and
          space within the building conduit(s) occupied by the Product at the
          locations and otherwise, provided that such use does not interfere
          with or hinder Carrier's use of its Product as permitted hereunder.

     4.6  MFN agrees not to use the Product for the purposes of transmission of
          communications or any other electro-optical use.

     4.7  MFN shall keep the Product and the Network free from any liens, rights
          or claims of any third party attributable to MFN which may materially
          and adversely affect the right of Carrier to use the Product
          hereunder; provided, however, that MFN may pledge the Network so long
          as MFN uses commercially reasonable efforts to obtain a non-
          disturbance agreement in favor of Carrier.

     4.8  MFN and Carrier shall promptly notify each other of any matters
          pertaining to, or the occurrence (or impending occurrence) of, any
          event of which it is aware that could give rise to any damage or
          impending damage to or loss of the Product or Network.

     4.9  MFN and Carrier agree to cooperate with each other in complying with
          any requirements applicable to their respective rights and obligations
          hereunder by any Governmental Authority.
<PAGE>

     5.  AUTHORIZATIONS; RELOCATION; CONDEMNATION
         ----------------------------------------

     5.1  "Authorization(s)" will mean all material and applicable governmental
          or non-governmental licenses, easements, rights of way, conduit, pole
          attachment and any other facilities or property rights, licenses,
          contracts, franchises, approvals, permits, orders, consents, and all
          other rights required for MFN to operate and maintain the Network or
          provide the Product to Carrier pursuant to this Agreement.

     5.2  MFN will use commercially reasonable efforts to have or obtain by the
          Service Date, all Authorizations and to maintain or renew all such
          Authorizations through the Initial Term and to replace such
          Authorizations with reasonably suitable replacement Authorizations if
          any expire or are terminated or discontinued during the Initial Term.
          If any Authorizations are modified, terminated or discontinued and not
          replaced, and the loss of such Authorizations threatens to cause or
          does cause material financial harm to MFN, or prevents or materially
          interferes with MFN's control, possession and/or use of the Network or
          ability to lease the Product or materially and adversely affects the
          use by Carrier of the Product, then MFN will at its option either (i)
          provide Carrier with comparable Product or fiber optic capacity on
          portions of MFN's then existing Network (and/or other MFN Networks,
          including networks belonging to or controlled by MFN Affiliates) or on
          networks of third parties, or (ii) terminate this Agreement with
          respect to the affected Product and rebate to Carrier the pro rata
          portion of all Prepaid Lease Payments allocable to the terminated
          Product and amortized over the remainder of the Lease Term. The
          foregoing will be MFN's sole and exclusive liability and Carrier's
          sole and exclusive remedy with respect to the foregoing.

     5.3  If MFN receives notice of any request, intent or plan by any
          governmental or non-governmental third party, to relocate any material
          part of the Product or any material segment of MFN's Network used in
          the provision of the Product, MFN will notify Carrier of such request,
          intent, or plan. If MFN is required by any such third party to
          relocate any segment of MFN's network used in providing the Product,
          MFN will give Carrier at least sixty (60) days (or such lesser period
          of notice that MFN may have received) prior written notice of any such
          relocation ("Relocation Notice"). Together with the Relocation Notice,
          MFN will provide an estimate of the cost of such relocation. MFN will
          relocate the Leased Fibers, and, to the extent MFN is not reimbursed
          for the cost of such relocation by a third party, governmental entity
          or otherwise, Carrier will pay its pro rata share of the costs
          associated with the relocation of the Product; except, however, to the
          extent that such relocation is the direct result of any negligent or
          willful act or omission of MFN. MFN will use its commercially
          reasonable efforts to secure an agreement for reimbursement from any
          third party, governmental entity or otherwise, requiring any
          relocation of the Network and the Product. Notwithstanding the
          foregoing, in the event that MFN is required to relocate the Product
          or the Network, and further provided that MFN requires Carrier to pay
          its pro rata share of the costs associated with such relocation, then
          Carrier shall have the right, by delivery of written notice to MFN no
          later than fifteen (15) days after Carrier is notified by MFN of such
          relocation and Carrier's requirement to pay its pro rata share of such
          relocation, (i) to elect to terminate the Term with respect to the
          affected segment of the Product, (ii) not to pay any allocated share
          of the costs associated with the relocation of such Product or
          Network, and (iii) not be required to pay any early termination fees
          in connection with the affected segment. Moreover, if such relocation
          shall cause any Locations to be dropped from any Ring, then Carrier
          shall have the same right to terminate the Term in accordance with
          this section.

     5.4  If any portion of the Network or the Product and/or the Authorizations
          in or upon which the Product has been installed, become the subject of
          a condemnation proceeding which is not dismissed within one hundred
          eighty (180) days after the date of filing of such proceeding and
          which could reasonably be expected to result in a taking by any
          governmental agency
<PAGE>

     or other party having the power of eminent domain for public purpose or
     use, both Parties will be entitled, to the extend permitted under
     applicable law, to participate in any condemnation proceedings for
     compensation by either joint or separate awards for the economic value of
     their respective interests in the Leased Fibers that are subject to such
     condemnation proceeding.

6.   WARRANTIES
     ----------

6.1  MFN warrants to Carrier that upon the Service Date Product will operate in
     accordance with the Specifications related thereto.

          EXCEPT AS OTHERWISE EXPRESSLY PROVIDED IN THIS AGREEMENT, MFN
          DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED INCLUDING ANY AND
          ALL WARRANTIES OF MENCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
          WITH RESPECT TO THE (i) NETWORK OR PRODUCT, (ii) THE LEASE GRANTED
          PURSUANT HERETO, (iii) MAINTENANCE SERVICES (iv) CONSTRUCTION AND
          INSTALLATION SERVICES, IF ANY, AND (v) ANY OTHER SERVICE(S)
          (HEREINAFTER (iii) THROUGH (v) WILL COLLECTIVELY BE REFERRED TO AS
          "SERVICES") PROVIDED BY OR ON BEHALF OF MFN HEREUNDER.

7.   LIABILITY/INDEMNIFICATION
     -------------------------

7.1  Except for the gross negligence or willful misconduct of a Party hereto and
     except where a specific remedy is provided in this Agreement, the liability
     of each Party to the other Party for damages will be limited to the total
     Installation Charges and the Monthly Lease Payments paid or payable by
     Carrier for the Lease Term during which the damages were incurred. In no
     event will either Party be liable to the other Party for any incidental,
     indirect, special, consequential, exemplary, or punitive damages arising
     out of or relating to this Agreement, the lease granted hereunder, the
     Network, Product or Services provided hereunder, including damages based on
     loss of revenues, profits or lost business opportunities, regardless of
     whether the respective Party had been advised of or could have foreseen the
     possibility of such damages.

7.2  Each Party agrees to indemnify, defend and hold the other, its officers,
     directors, employees, agents and contractors harmless from and against all
     loss, damage, liability, cost and expense (including reasonable attorney's
     fees and expenses) by reason of any claims or actions by third parties for
     (i) bodily injury, including death, (ii) damage, loss or destruction or any
     real or tangible personal property (including without limitation the
     Network and Product) which third party claims arise out of or relate to (a)
     any Product or Services provided by or on behalf of MFN hereunder, (b) a
     Party's performance of or failure to perform any term, condition or
     obligation under this Agreement, (c) any act or omission of a Party's
     directors, agents, employees, contractors, representatives or invitees, or
     (d) Carrier's or its customer's use of the Product and conduct of their
     respective businesses including without limitation the content of any
     video, voice or data carried by Carrier or its customers on the Product or
     Network.

7.3  Except as otherwise set forth in this Agreement, nothing contained herein
     will operate as a limitation on the right of either Party to bring an
     action for damages against any third party based on any act or omission of
     such third party as such act or omission may affect the construction,
     operation, or use of the Product. Each Party agrees to execute such
     documents and provide such commercially reasonable assistance, at the
     claiming Party's sole expense, as may be reasonably necessary to enable the
     claiming Party to pursue any such action against such third party.

8.  CONFIDENTIALITY
    ---------------
<PAGE>

8.1  The Parties acknowledge and agree that this Agreement and the information
     each Party has provided or will provide in connection with this Agreement
     or that the other Party learns or obtains from a source other than public
     domain or from a source (including a Party) not in violation of any
     obligation of confidentiality, are and will be confidential and proprietary
     to the Party providing such information (the "Providing Party"). The Party
     in receipt of or learning or obtaining the confidential information (the
     "Receiving Party") agrees not to distribute, use or disclose to any third
     party the confidential information of the Providing Party.

8.2  Except as may be required by applicable legal requirements in the course of
     defending or prosecuting a legal, insurance or other claim or as required
     by applicable law, rule or regulation, Receiving Party will restrict
     dissemination of confidential information to only those persons who must
     have access to such confidential information in order to perform their
     respective rights or obligations hereunder. The Receiving Party will
     promptly notify the Disclosing Party of any such required disclosure to
     enable the Disclosing Party to seek protective relief therefrom and shall
     cooperate as the Disclosing Party may request in connection therewith.

8.3  Carrier may disclose the identity of MFN as a supplier of Carrier, and MFN
     may disclose the identity of Carrier as customer of MFN; provided, that no
     such disclosure shall imply any endorsement of the disclosed Party or
     contain any misleading reference to the nature of the relationship between
     the Parties.

8.4  Each Party acknowledges and agrees that the information of the Disclosing
     Party described in this Section 8 constitutes valuable property of the
     Disclosing Party and that Disclosing Party will suffer irreparable injury
     not compensable by money damages for which the Disclosing Party will not
     have an adequate remedy at law in the event of a breach by the Receiving
     Party of the provisions of this Section 8 and therefore the Disclosing
     Party shall be entitled to injunctive relief to prevent or curtail any such
     breach, threatened or actual. The foregoing shall be without prejudice to
     or limitation on any other rights a Party may have under this Agreement, at
     law or in equity.

9.  NOTICES
    -------

Unless otherwise provided herein, all notices and communications concerning this
Agreement will be in writing and sent to the address (and contact person)
specified in the Product Order, or at such other address as may be designated in
writing by a Party. Unless otherwise provided herein, notices will be sent by
certified U.S. Postal Service, return receipt requested, or by commercial
overnight delivery service, or by facsimile, and will be presumed delivered, if
sent by US Postal Service, five (5) days after deposit, if sent by facsimile,
upon verification of receipt or, if sent by commercial overnight delivery
service, one (1) business day after deposit therewith.

10.  RENEWAL TERM
     ------------

Provided that Carrier is not in breach of any of its material obligations under
this Agreement and subject to the conditions of this Agreement, Carrier may
renew the term of this Agreement for the Product for one (1) additional renewal
term upon the terms and conditions of this Agreement, except for the length of
such renewal term and the Installation and Lease Fee payments, which the Parties
will negotiate in good faith following Carrier's written request for renewal
delivered to MFN no earlier than one year before the scheduled expiration date
of the initial term and no later that ninety (90) days before such expiration
date.

11.  TERMINATION/FORCE MAJEURE
     -------------------------

11.1 If any of the following events of default occur, the non-breaching Party
     (if MFN) will have the right to deny access by Carrier to the Product or
     Network and (if either Party) to terminate this Agreement by written notice
     following the expiration of any periods of time included in
<PAGE>

     the following, such termination to be effective in the on the date set
     forth in the written notice of termination:

     11.1 (a) If Carrier terminates any Product Order at any time before the
              expiration of the Lease Term (whether before or after the Turnover
              Date) or fails to make any payment hereunder which is not disputed
              in good faith and in writing within five (5) days or receipt of
              written notice of late payment from MFN, MFN will have the right
              to terminate this Agreement and deny access by Carrier to the
              Product or Network immediately without further notice to Carrier.

     11.1 (b) If a Party breaches any material term or condition of this
              Agreement and such breach remains uncured thirty (30) days after
              delivery to the breaching Party of written notice of such breach,
              unless the breach is of a nature or involves circumstances
              requiring more than thirty (30) days to cure, the time period may
              be extended for such time as will be reasonably required, provided
              the defaulting party proceeds diligently to cure the breach.

     11.1 (c) A Party applies for or consents to the appointment of a receiver,
              trustee or similar officer for it or any substantial part of its
              property or assets, or any such appointment is made without such
              application or consent by such Party and remains undischarged for
              a period of sixty (60) days; or

     11.1 (d) A Party consents to the institution of a petition, application,
              answer, consent, default of otherwise of any bankruptcy,
              insolvency or reorganization and any such proceeding as instituted
              against such Party remains undischarged for a period of sixty (60)
              days.

11.2 In the event of termination of the Product Order by MFN pursuant to Section
     11.1 hereof or by Carrier after execution of the Product Order or before
     the end of the Lease Term (other than by Carrier for cause as provided in
     this Section 11), MFN will be entitled to receive, and Carrier will
     immediately pay, the early termination charge ("Early Termination Charge")
     set forth in the Product Order, and to offset any remaining portion of the
     Prepaid Lease Payment against any sums otherwise due and payable by Carrier
     to MFN pursuant to this Agreement.

11.3 If any Authorization is modified, terminated or discontinued and not
     replaced as provided in Section 5.2 of these General Terms and Conditions,
     and MFN has not notified Carrier in writing within thirty (30) days after
     the occurrence of such modification, termination or discontinuance that MFN
     will provide additional or substitute Product or capacity as provided in
     Section 5.2, then and thereafter either party has the right, exercisable in
     its sole discretion, to terminate the Product Order with respect to the
     affected Product upon thirty (30) days prior written notice (or such other
     notice as is practicable under the circumstances) without liability
     whatsoever by either Party to the other Party or any party claiming by,
     through or under such other Party other than the return to Carrier, of the
     unamortized portion of any Prepaid Lease Payment as of the date of such
     termination as provided in Section 5.2.

11.4 Neither Party will be in breach of this Agreement resulting from delay or
     prevention of performance of such Party which is caused by any act
     attributable to an occurrence or an event of "Force Majeure" as defined
     herein. Neither party will, however, be relieved of liability for failure
     of performance due to a claimed Force Majeure hereunder if such failure is
     due to causes arising out of its own negligence or to removable or remedial
     causes that it fails to remove or remedy using commercially reasonable
     efforts and within a reasonable period of time.

11.5 The term "Force Majeure" will mean any cause beyond the control of Carrier
     (or MFN, as applicable) which, by the exercise of due foresight, Carrier
     (or MFN) could not reasonably
<PAGE>

     have been expected to avoid, and which by the exercise of reasonable
     diligence, Carrier (or MFN) will be unable to overcome, including but not
     limited to action by governmental authority including without limitation
     moratorium on any activities related to the Agreement, third party labor
     dispute, flood, earthquake, fire, lightning, epidemic, war, riot, civil
     disturbance, sabotage (not caused by MFN or any of its affiliates,
     employees or contracted third parties) and the like. The party affected by
     an event of Force Majeure (the "Affected Party") will notify the other
     party (the "Other Party") promptly of any occurrence or condition which, in
     the Affected Party's reasonable opinion, warrants an extension of time.
     Such notice will specify in detail the anticipated length of delay, the
     cause of the delay and a timetable by which any remedial measures will be
     implemented.

12.  ASSIGNMENT; SUCCESSION
     ----------------------

12.1 Neither party shall assign this Agreement to any other party without the
     prior written consent of the other Party, which consent shall not be
     unreasonably withheld or delayed; provided, however, that each Party shall
     have the right, without the other Party's consent, but with prior written
     notice to the other Party, to assign this Agreement to any entity
     controlling, controlled by or under common control with such Party. Upon
     any permitted assignment hereunder, the assignee will remain jointly and
     severally responsible for the performance under this Agreement, unless
     released in writing by the other Party. Any permitted assignee will
     expressly assume all liabilities hereunder prior to the effectiveness of
     such assignment. Any attempted assignment without such consent will be null
     and void and may be deemed by the other Party, in its sole discretion, to
     constitute a material breach of this Agreement.

12.2 The Agreement and Product Order will be binding upon and inure to the
     benefit of the Parties hereto and their respective successors and permitted
     assigns.

13.  GOVERNING LAW
     -------------

13.1 THIS AGREEMENT WILL BE INTERPRETED AND CONSTRUED IN ACCORDANCE WITH THE
     INTERNAL LAWS OF THE STATE 0F NEW YORK WITHOUT GIVING EFFECT TO ITS
     PRINCIPLES OF CONFLICTS OF LAWS.

14.  SURVIVAL
     --------

The Parties' respective representation, warranties, and covenants, together with
obligations of indemnification, confidentiality and limitations on liability
will survive the expiration, termination or rescission of this Agreement and
continue in full force and effect.

15.  ENTIRE AGREEMENT
     ----------------

This Agreement, Product Order, Exhibits and all addenda attached hereto
constitute the entire agreement between the parties hereto with respect to the
subject matter hereof and supersede any and all prior negotiations,
understandings, and agreement with respect hereto, whether oral or written.

16.  REMEDIES CUMULATIVE
     -------------------

Except as otherwise expressly provided, the rights and remedies set forth in
this Agreement will be in addition to, and cumulative of, all other rights and
remedies at law or in equity.

17.  REPRESENTATIONS, WARRANTIES AND COVENANTS
     -----------------------------------------

Each Party represents, warrants and covenants to the other that (a) it is a
corporation, limited liability company, partnership, or other legal entity, duly
organized, validly existing and in good standing under the laws of the state of
its organization, (b) it has all requisite power and authority
<PAGE>

to enter into and perform its obligations under this Agreement and Product Order
and (c) this Agreement, when executed, will become the legal, valid and binding
obligation of such Party.

18.  MISCELLANEOUS
     -------------

18.1 The covenants, undertakings, and agreements set forth in this Agreement
     will be solely for the benefit of and will be enforceable only by the
     Parties hereto or their respective successors or permitted assigns.

18.2 The headings of the Sections in this Agreement are strictly for convenience
     and will not in any way be construed as amplifying or limiting any of the
     terms, provisions or conditions thereof.

18.3 In the event any term of this Agreement will be held valid, illegal or
     unenforceable, in whole or in part, neither the validity of the remaining
     part of such term nor the validity of the remaining terms of this Agreement
     will be in any way affected thereby.

18.4 This Agreement may be amended only by a written instrument executed by the
     Parties.

18.5 No failure to exercise and no delay in exercising, on the part of either
     Party hereunder, any right, power or privilege hereunder will operate as a
     waiver hereof, except as expressly provided herein.

18.6 This Agreement may be executed in multiple counterparts, each of which will
     constitute one and the same instrument.


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