360NETWORKS INC
F-4, EX-1.1, 2000-07-25
ELECTRICAL WORK
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                                360networks inc.




                       U.S. $600 13% Senior Notes due 2008


                    EURO 200 13% Senior Notes due 2008


                               Purchase Agreement


                                 April 20, 2000


















               Donaldson, Lufkin & Jenrette Securities Corporation
                              Goldman, Sachs & Co.
                            Bear, Stearns & Co. Inc.
                              Chase Securities Inc.
                     Credit Suisse First Boston Corporation
                        Morgan Stanley & Co. Incorporated
                            Salomon Smith Barney Inc.
                       RBC Dominion Securities Corporation
                            TD Securities (USA) Inc.


<PAGE>




                       U.S. $600 13% Senior Notes due 2008

                       EURO 200 13% Senior Notes due 2008


                               of 360networks inc.

                               PURCHASE AGREEMENT

                                                                  April 20, 2000

DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION
GOLDMAN, SACHS & CO
BEAR, STEARNS & CO. INC.
CHASE SECURITIES INC.
CREDIT SUISSE FIRST BOSTON CORPORATION
MORGAN STANLEY & CO. INCORPORATED
SALOMON SMITH BARNEY INC.
RBC DOMINION SECURITIES CORPORATION TD SECURITIES (USA) INC.
c/o Donaldson, Lufkin & Jenrette Securities Corporation
     277 Park Avenue
     New York, New York 10172


Dear Sirs:

     360networks inc., a company continued under the laws of Nova Scotia, Canada
(the "Company"), proposes to issue and sell to Donaldson, Lufkin & Jenrette
Securities Corporation, Goldman, Sachs & Co., Bear, Stearns & Co. Inc., Chase
Securities Inc., Credit Suisse First Boston Corporation, Morgan Stanley & Co.
Incorporated, Salomon Smith Barney Inc., RBC Dominion Securities Corporation and
TD Securities (USA) Inc. (each, an "Initial Purchaser" and, together, the
"Initial Purchasers") an aggregate of U.S. $600,000,000 in principal amount of
its 13% Senior Notes due 2008 (the "U.S. Series A Notes") and Euro 200,000,000
in principal amount of its 13% Senior Notes due 2008 (the "Euro Series A Notes"
and together with the U.S. Series A Notes, the "Series A Notes"), subject to the
terms and conditions set forth herein. The U.S. Series A Notes are to be issued
pursuant to the provisions of an indenture (the "U.S. Indenture"), to be dated
as of the Dollar Closing Date (as defined below), between the Company and HSBC
Bank USA, as trustee (the "Trustee"). The Euro Series A Notes are to be issued
pursuant to the provisions of an indenture (the "Euro Indenture," and, together
with the U.S. Indenture, the "Indentures") to be dated as of the Euro Closing
Date (as defined below), between the Company and the Trustee. The Series A Notes
and the Series B Notes (as defined below) issuable in exchange therefor are
collectively referred to herein as the "Notes." Capitalized terms used but not
defined herein shall have the meanings given to such terms in the Indentures.

     1. Offering Memorandum.


<PAGE>

     The Series A Notes will be offered and sold to the Initial Purchasers
pursuant to one or more exemptions from the registration requirements under the
Securities Act of 1933, as amended (the "Act"). The Company has prepared a
preliminary offering memorandum, dated March 22, 2000 (the "Preliminary Offering
Memorandum"), a preliminary Canadian addendum, dated March 22, 2000 (the
"Preliminary Wrap"), a final offering memorandum, dated April 20, 2000 (the
"Offering Memorandum"), and a final Canadian addendum, dated April 20, 2000 (the
"Final Wrap"), in each case, relating to the Series A Notes. The Company hereby
confirms that it has authorized the use of the Preliminary Offering Memorandum,
the Preliminary Wrap, the Offering Memorandum and the Final Wrap, and any
amendment or supplement thereto, in connection with the offer and sale of the
Series A Notes by the Initial Purchasers. Unless stated to the contrary, all
references herein (i) to the "Preliminary Canadian Memorandum" are to the
Preliminary Offering Memorandum as supplemented by the Preliminary Wrap; and
(ii) to the "Final Canadian Memorandum" are to the Offering Memorandum as
supplemented by the Final Wrap.

     Upon original issuance thereof, and until such time as the same is no
longer required pursuant to the Indentures, the Series A Notes (and all
securities issued in exchange therefor, in substitution thereof or upon
conversion thereof) shall bear the following legend:

     "THIS NOTE (OR ITS PREDECESSOR) HAS NOT BEEN REGISTERED UNDER THE U.S.
     SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND,
     ACCORDINGLY, MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED
     WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S.
     PERSONS, EXCEPT AS SET FORTH IN THE NEXT SENTENCE. BY ITS ACQUISITION
     HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE HOLDER: (1) REPRESENTS THAT
     (A) IT IS A "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER
     THE ACT)(A "QIB"), (B) IT HAS ACQUIRED THIS NOTE IN AN OFFSHORE TRANSACTION
     IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT, OR (C) IT IS AN
     INSTITUTIONAL "ACCREDITED INVESTOR" (AS DEFINED IN RULE 501(A)(1),(2),(3)
     OR (7) OF REGULATION D UNDER THE SECURITIES ACT) (AN "IAI"), (2) AGREES
     THAT IT WILL NOT RESELL OR OTHERWISE TRANSFER THIS NOTE EXCEPT (A) TO THE
     COMPANY OR ANY OF ITS SUBSIDIARIES, (B) TO A PERSON WHOM THE SELLER
     REASONABLY BELIEVES IS A QIB PURCHASING FOR ITS OWN ACCOUNT OR FOR THE
     ACCOUNT OF A QIB IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A,
     (C) IN AN OFFSHORE TRANSACTION MEETING THE REQUIREMENTS OF RULE 903 OR 904
     OF THE ACT, (D) IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144 UNDER
     THE SECURITIES ACT, (E) TO AN IAI THAT, PRIOR TO SUCH TRANSFER, FURNISHES
     THE TRUSTEE A SIGNED LETTER CONTAINING CERTAIN REPRESENTATIONS AND
     AGREEMENTS RELATING TO THE TRANSFER OF THIS NOTE (THE FORM OF WHICH CAN BE
     OBTAINED FROM THE TRUSTEE) AND, IF SUCH TRANSFER IS IN RESPECT OF AN
     AGGREGATE PRINCIPAL AMOUNT OF NOTES LESS THAN



                                       2
<PAGE>

     $250,000, AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY THAT SUCH
     TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT, (F) IN ACCORDANCE WITH
     ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT
     (AND BASED UPON AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY) OR (G)
     PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT AND, IN EACH CASE, IN
     ACCORDANCE WITH THE APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED
     STATES OR ANY OTHER APPLICABLE JURISDICTION AND (3) AGREES THAT IT WILL
     DELIVER TO EACH PERSON TO WHOM THIS NOTE OR AN INTEREST HEREIN IS
     TRANSFERRED, A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. AS USED
     HEREIN, THE TERMS "OFFSHORE TRANSACTION" AND "UNITED STATES" HAVE THE
     MEANINGS GIVEN TO THEM BY RULE 902 OF REGULATION S UNDER THE ACT. THE
     INDENTURES CONTAIN A PROVISION REQUIRING THE TRUSTEE TO REFUSE TO REGISTER
     ANY TRANSFER OF THIS NOTE IN VIOLATION OF THE FOREGOING."

     2. Agreements to Sell and Purchase.

     On the basis of the representations, warranties and covenants contained in
this Agreement, and subject to the terms and conditions contained herein, the
Company agrees to issue and sell to the Initial Purchasers, and each Initial
Purchaser agrees, severally and not jointly, to purchase from the Company, the
principal amounts of Series A Notes set forth opposite the name of such Initial
Purchaser on Schedule A hereto at a purchase price equal to 100% less a
commission of 2.5% (the "Purchase Price").

     3. Terms of Offering.

     The Initial Purchasers have advised the Company that the Initial Purchasers
will make offers (the "Exempt Resales") of the Series A Notes purchased
hereunder on the terms set forth in the Offering Memorandum, as amended or
supplemented, solely to (i) persons whom the Initial Purchasers reasonably
believe to be "qualified institutional buyers" as defined in Rule 144A under the
Act ("QIBs"), and (ii) persons permitted to purchase the Series A Notes in
offshore transactions in reliance upon Regulation S under the Act (each, a
"Regulation S Purchaser") (such persons specified in clauses (i) and (ii) being
referred to herein as the "Eligible Purchasers"). The Initial Purchasers will
offer the Series A Notes to Eligible Purchasers initially at a price equal to
100% of the principal amount thereof. Such price may be changed at any time
without notice.

     Holders (including subsequent transferees) of the U.S. Series A Notes will
have the registration rights set forth in a Registration Rights Agreement (the
"U.S. Registration Rights Agreement"), to be dated the Dollar Closing Date, in
substantially the form of Exhibit A hereto, for so long as such U.S. Series A
Notes constitute "Transfer Restricted Securities" (as defined in the U.S.
Registration Rights Agreement). Holders (including subsequent transferees) of
the Euro Series A Notes will have the registration rights set forth in a
Registration Rights Agreement (the "Euro Registration Rights Agreement"), to be
dated the Euro Closing Date, in



                                       3
<PAGE>

substantially the form of Exhibit A hereto, for so long as such Euro Series A
Notes constitute "Transfer Restricted Securities" (as defined in the Euro
Registration Rights Agreement). Pursuant to the Registration Rights Agreements,
the Company will agree to file with the Securities and Exchange Commission (the
"Commission") under the circumstances set forth therein, (i) a registration
statement under the Act (the "Exchange Offer Registration Statement") relating
to the Company's U.S. Dollar-denominated 13% Senior Notes due 2008 (the "U.S.
Series B Notes") and euro-denominated 13% Senior Notes due 2008 (the "Euro
Series B Notes," and, together with the U.S. Series B Notes, the "Series B
Notes"), to be offered in exchange for the Series A Notes as evidence of the
same underlying indebtedness (such offer to exchange being referred to as the
"Exchange Offer") and (ii) a shelf registration statement pursuant to Rule 415
under the Act (the "Shelf Registration Statement" and, together with the
Exchange Offer Registration Statement, the "Registration Statements") relating
to the resale by certain holders of the Series A Notes and to use its reasonable
best efforts to cause such Registration Statements to be declared and remain
effective and usable for the periods specified in the Registration Rights
Agreements and to consummate the Exchange Offer. This Agreement, the Indentures,
the Notes, and the Registration Rights Agreements are hereinafter sometimes
referred to collectively as the "Operative Documents."

     4. Delivery and Payment.

     (a) Delivery of, and payment of the Purchase Price for, the Series A Notes
shall be made at the offices of Latham & Watkins, 885 Third Avenue, Suite 1000,
New York, New York 10022, or such other location as may be mutually acceptable.
Such delivery and payment shall be made at 9:00 a.m. New York City time, on
April 26, 2000 or at such other time or times on the same date or such other
date or dates as shall be agreed upon by the Initial Purchasers and the Company.
The time and date of such delivery and the payment for the Dollar Series A Notes
are herein called the "Dollar Closing Date," the time and date of such delivery
and the payment for the Euro Series A Notes are herein called the "Euro Closing
Date," and the Dollar Closing Date and Euro Closing Date are collectively
referred to herein as the "Closing Dates".

     (b) One or more of the U.S. Series A Notes in definitive global form,
registered in the name of Cede & Co., as nominee of the Depository Trust Company
("DTC"), having an aggregate principal amount corresponding to the aggregate
principal amount of the U.S. Series A Notes (collectively, the "U.S. Global
Note"), and one or more of the Euro Series A Notes in definitive global form,
registered in the name of a common depository for Euroclear and Clearstream, or
its nominee, having an aggregate principal amount corresponding to the aggregate
principal amount of the Euro Series A Notes (collectively, the "Euro Global
Note," and with the Dollar Global Note, the "Global Notes"), shall be delivered
by the Company to the Initial Purchasers (or as the Initial Purchasers direct)
in each case with any transfer taxes thereon duly paid by the Company against
payment by the Initial Purchasers of the Purchase Price thereof by wire transfer
in same day funds to the order of the Company. The Global Notes shall be made
available to the Initial Purchasers for inspection not later than 10:00 a.m.,
New York City time, on the business day immediately preceding each Closing Date.



                                       4
<PAGE>

     5. Agreements of the Company. The Company hereby agrees with the Initial
Purchasers as follows:

     (a) To advise the Initial Purchasers promptly and, if requested by the
Initial Purchasers, confirm such advice in writing, (i) of the issuance by any
state securities commission or any securities commission of a Relevant Province
(as defined below) of any stop order suspending the qualification or exemption
from qualification of any Series A Notes for offering or sale in any
jurisdiction designated by the Initial Purchasers pursuant to Section 5(e)
hereof, or the initiation of any proceeding by any state securities commission
or any other federal, state or provincial regulatory authority for such purpose
and (ii) of the happening of any event during the period referred to in Section
5(c) below that makes any statement of a material fact made in the Preliminary
Offering Memorandum, Preliminary Canadian Memorandum, the Offering Memorandum,
or the Final Canadian Memorandum untrue or that requires any additions to or
changes in the Preliminary Offering Memorandum, the Preliminary Canadian
Memorandum, the Offering Memorandum, or the Final Canadian Memorandum in order
to make the statements therein not misleading. The Company shall use its best
efforts to prevent the issuance of any stop order or order suspending the
qualification or exemption of any Series A Notes under any state securities or
Blue Sky laws or Canadian Securities Laws (as defined below) and, if at any time
any state securities commission or other federal or state regulatory authority
or any securities commission of a Relevant Province shall issue an order
suspending the qualification or exemption of any Series A Notes under any state
securities or Blue Sky laws or Canadian Securities Laws (as defined below), the
Company shall use its best efforts to obtain the withdrawal or lifting of such
order at the earliest possible time.

     (b) To furnish the Initial Purchasers and those persons identified by the
Initial Purchasers to the Company as many copies of the Preliminary Offering
Memorandum, the Preliminary Canadian Memorandum, the Offering Memorandum and the
Final Canadian Memorandum, and any amendments or supplements thereto, as the
Initial Purchasers may reasonably request for the time period specified in
Section 5(c). Subject to the Initial Purchasers' compliance with its
representations and warranties and agreements set forth in Section 7 hereof, the
Company consents to the use of the Preliminary Offering Memorandum, the
Preliminary Canadian Memorandum, the Offering Memorandum and the Final Canadian
Memorandum, and any amendments and supplements thereto required pursuant hereto,
by the Initial Purchasers in connection with Exempt Resales.

     (c) During such period as in the opinion of counsel for the Initial
Purchasers an Offering Memorandum is required by law to be delivered in
connection with Exempt Resales by the Initial Purchasers, (i) not to make any
amendment or supplement to the Offering Memorandum or the Final Canadian
Memorandum of which the Initial Purchasers shall not previously have been
advised or to which the Initial Purchasers shall reasonably object after being
so advised and (ii) to prepare promptly upon the Initial Purchasers' reasonable
request, any amendment or supplement to the Offering Memorandum or the Final
Canadian Memorandum which may be necessary or advisable in connection with such
Exempt Resales.

     (d) If, during the period referred to in Section 5(c) above, any event
shall occur or condition shall exist as a result of which, in the opinion of
counsel to the Initial



                                       5
<PAGE>

Purchasers, it becomes necessary to amend or supplement the Offering Memorandum
or the Final Canadian Memorandum in order to make the statements therein, in the
light of the circumstances when such Offering Memorandum or the Final Canadian
Memorandum is delivered to an Eligible Purchaser, not misleading, or if, in the
opinion of counsel to the Initial Purchasers, it is necessary to amend or
supplement the Offering Memorandum or the Final Canadian Memorandum to comply
with any applicable law, forthwith to prepare an appropriate amendment or
supplement to such Offering Memorandum or Final Canadian Memorandum so that the
statements therein, as so amended or supplemented, will not, in the light of the
circumstances when it is so delivered, be misleading, or so that such Offering
Memorandum or Final Canadian Memorandum will comply with applicable law, and to
furnish to the Initial Purchasers and such other persons as the Initial
Purchasers may designate such number of copies thereof as the Initial Purchasers
may reasonably request.

     (e) Prior to the sale of all Series A Notes pursuant to Exempt Resales as
contemplated hereby, to cooperate with the Initial Purchasers and counsel to the
Initial Purchasers in connection with the registration or qualification of the
Series A Notes for offer and sale to the Initial Purchasers and pursuant to
Exempt Resales under the securities or Blue Sky laws of such jurisdictions or
the Canadian Securities Laws as the Initial Purchasers may request and to
continue such registration or qualification in effect so long as required for
Exempt Resales and to file such consents to service of process or other
documents as may be necessary in order to effect such registration or
qualification; provided, however, that the Company shall not be required in
connection therewith to qualify as a foreign corporation in any jurisdiction in
which it is not now so qualified or to take any action that would subject it to
general consent to service of process or taxation other than as to matters and
transactions relating to the Preliminary Offering Memorandum, the Offering
Memorandum or Exempt Resales, in any jurisdiction in which it is not now so
subject.

     (f) So long as the Notes are outstanding, whether or not the Company is
subject to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), the Company shall file with the Commission and
furnish to the holders of the Notes and the Trustee (i) within 140 days after
the end of each fiscal year, annual reports on Form 20-F or 40-F, as applicable
(or any successor form), containing the information required to be contained
therein (or required in such successor form) and (ii) (x) within 45 days after
the end of each of the first three fiscal quarters of each fiscal year, reports
on Form 10-Q or (y) within 60 days after the end of each of the first three
fiscal quarters of each fiscal year, reports on Form 6-K (or any successor form)
which, regardless of applicable requirements, shall, at a minimum, contain a
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."

     (g) So long as the Notes are outstanding, to furnish to the Initial
Purchasers as soon as available copies of all reports or other communications
furnished by the Company to its security holders or furnished to or filed with
the Commission, any securities commission of a Relevant Province or any national
securities exchange on which any class of securities of the Company is listed
and such other publicly available information concerning the Company and/or its
subsidiaries as the Initial Purchasers may reasonably request.



                                       6
<PAGE>

     (h) So long as the Notes are outstanding, the Company will furnish to the
holders of Notes the information ("Rule 144A Information") required to be
delivered pursuant to Rule 144A(d)(4) under the Act.

     (i) Whether or not the transactions contemplated in this Agreement are
consummated or this Agreement is terminated, to pay or cause to be paid all
expenses incident to the performance of the obligations of the Company under
this Agreement, including: (i) the fees, disbursements and expenses of counsel
to the Company and accountants of the Company in connection with the sale and
delivery of the Series A Notes to the Initial Purchasers and pursuant to Exempt
Resales, and all other fees and expenses in connection with the preparation,
printing, filing and distribution of the Preliminary Offering Memorandum, the
Preliminary Canadian Memorandum, the Offering Memorandum, the Final Canadian
Memorandum, and all amendments and supplements to any of the foregoing
(including financial statements), including the mailing and delivering of copies
thereof to the Initial Purchasers and persons designated by them in the
quantities specified herein, (ii) all costs and expenses related to the transfer
and delivery of the Series A Notes to the Initial Purchasers and pursuant to
Exempt Resales, including any transfer or other taxes payable thereon, (iii) all
expenses in connection with the registration or qualification of the Series A
Notes for offer and sale under the securities or Blue Sky laws of the several
states and the Canadian Securities Laws (as defined below) and all costs of
printing or producing any preliminary and supplemental Blue Sky memoranda in
connection therewith (including the filing fees and fees and disbursements of
counsel for the Initial Purchasers in connection with such registration or
qualification and memoranda relating thereto), (iv) the cost of printing
certificates representing the Series A Notes, (v) all expenses and listing fees
in connection with the application for quotation of the Series A Notes in the
National Association of Securities Dealers, Inc. ("NASD") Automated Quotation
System - PORTAL ("PORTAL") and on the Luxembourg Stock Exchange, (vi) the fees
and expenses of the Trustee and the Trustee's counsel in connection with the
Indentures, and the Notes, (vii) the costs and charges of any transfer agent,
registrar and/or depository (including DTC), (viii) any fees charged by rating
agencies for the rating of the Notes, (ix) all costs and expenses of the
Exchange Offer and any Registration Statement, as set forth in the Registration
Rights Agreements, and (x) and all other costs and expenses incident to the
performance of the obligations of the Company hereunder for which provision is
not otherwise made in this Section.

     (j) To use its reasonable best efforts to effect the inclusion of the
Series A Notes in PORTAL and to maintain the listing of the Series A Notes on
PORTAL for so long as the Series A Notes are outstanding.

     (k) To obtain the approval of DTC for "book-entry" transfer of the Notes,
and to comply with all of its agreements set forth in the representation letters
of the Company to DTC relating to the approval of the Notes by DTC for
"book-entry" transfer.

     (l) During the period beginning on the date hereof and continuing to and
including each Closing Date, not to offer, sell, contract to sell or otherwise
transfer or dispose of any debt securities of the Company or any subsidiary of
the Company or any warrants, rights or options to purchase or otherwise acquire
debt securities of the Company or any subsidiary of the Company substantially
similar to the Notes (other than (i) the Notes and (ii)



                                       7
<PAGE>

commercial paper issued in the ordinary course of business), without the prior
written consent of the Initial Purchasers.

     (m) Not to sell, offer for sale or solicit offers to buy or otherwise
negotiate in respect of any security (as defined in the Act) that would be
integrated with the sale of the Series A Notes to the Initial Purchasers or
pursuant to Exempt Resales in a manner that would require the registration of
any such sale of the Series A Notes under the Act.

     (n) Not to voluntarily claim, and to actively resist any attempts to claim,
the benefit of any usury laws against the holders of any Notes.

     (o) To cause the Exchange Offer to be made in the appropriate form to
permit Series B Notes to be offered in exchange for the Series A Notes, as
evidence of the same underlying indebtedness, and to comply with all applicable
federal, state, and provincial securities laws in connection with the Exchange
Offer.

     (p) To comply with all of its agreements set forth in the Registration
Rights Agreements.

     (q) To use its best efforts to do and perform all things required or
necessary to be done and performed under this Agreement by it prior to each
Closing Date and to satisfy all conditions precedent to the delivery of the
Series A Notes.

     6. Representations, Warranties and Agreements of the Company. As of the
date hereof, the Company represents and warrants to, and agrees with, the
Initial Purchasers that:

     (a) The Preliminary Offering Memorandum, the Preliminary Canadian
Memorandum, the Offering Memorandum and the Final Canadian Memorandum, do not,
and any supplement or amendment to them will not, contain any untrue statement
of a material fact or omit to state any material fact required to be stated
therein or necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading, except that the
representations and warranties contained in this paragraph (a) shall not apply
to statements in or omissions from the Preliminary Offering Memorandum, the
Preliminary Canadian Memorandum, the Offering Memorandum and the Final Canadian
Memorandum (or any supplement or amendment thereto) based upon information
relating to the Initial Purchasers furnished to the Company in writing by the
Initial Purchasers expressly for use therein. No stop order preventing the use
of the Preliminary Offering Memorandum, the Preliminary Canadian Memorandum, the
Offering Memorandum or the Final Canadian Memorandum, or any amendment or
supplement thereto, or any order asserting that any of the transactions
contemplated by this Agreement are subject to the registration requirements of
the Act, has been issued.

     (b) Each of the Company, its subsidiaries and the Urbanlink Companies (as
defined in Section 6(d)) has been duly organized, is validly existing as a
corporation or limited liability company, as applicable, in good standing under
the laws of its



                                       8
<PAGE>

jurisdiction of incorporation, organization, amalgamation or continuance and has
the requisite, corporate or other, power and authority to carry on its business
as described in the Preliminary Offering Memorandum, the Preliminary Canadian
Memorandum, the Offering Memorandum and the Final Canadian Memorandum, and to
own, lease and operate its properties, and each is duly qualified and is in good
standing as a foreign corporation or limited liability company, as applicable,
authorized to do business in each jurisdiction in which the nature of its
business or its ownership or leasing of property requires such qualification,
except where the failure to be so qualified would not have a material adverse
effect on the business, prospects, financial condition or results of operations
of the Company and its subsidiaries, taken as a whole (a "Material Adverse
Effect").

     (c) On each Closing Date, all outstanding shares of capital stock of the
Company will have been duly allotted and validly issued as fully paid,
non-assessable and not subject to any preemptive or similar rights.

     (d) The entities listed on Schedule B hereto are the only subsidiaries,
direct or indirect, of the Company (collectively, the "Subsidiaries"). The only
Subsidiaries that are material for purposes for this Agreement (the "Material
Subsidiaries") are listed on Schedule C attached hereto. Each of the
Subsidiaries which is not a Material Subsidiary carries on no active business.
All of the outstanding shares of capital stock of each of the Company's Material
Subsidiaries and WFI Urbanlink Ltd. ("Urbanlink"), 360 Urbanlink Ltd. and
Urbanlink Holdings Ltd. ("Carrier Holdco") (collectively, the "Urbanlink
Companies") have been duly authorized and validly issued and are fully paid and
non-assessable, and, except for Ledcom Holdings Ltd., Carrier Holdco and
Urbanlink, are owned by the Company, directly or indirectly through one or more
subsidiaries, free and clear of any security interest, claim, lien, encumbrance
or adverse interest of any nature (each, a "Lien"). Ledcom Holdings Ltd. is
owned 50% by the Company and 50% by Ledcor Inc. ("Ledcor"), directly or
indirectly, through one or more subsidiaries, free and clear of any Lien except
for the security interest granted to Ledcor pursuant to the Unanimous
Shareholders Agreement, dated as of December 1, 1998, by and among Worldwide
Fiber Communications Ltd. Ledcor, Ledcor Industries Limited and Ledcor Holdings
Ltd. Urbanlink is owned 100% by Carrier Holdco, free and clear of any Lien. The
voting securities of Carrier Holdco are owned 331/3% by the Company and 662/3%
by Worldwide Fiber Holdings Ltd. ("WFH"), and the remaining equity securities of
Carrier Holdco are owned 51% by the Company and 49% by WFH, in each case, free
and clear of any Lien.

     (e) There are no restrictions on the corporate power and capacity of the
Company to enter into this Agreement or any other Operative Document, to execute
and sell the Series A Notes or to carry out its obligations hereunder and
thereunder, in each case, except as would not have a Material Adverse Effect.

     (f) This Agreement has been duly authorized, executed and delivered by the
Company.

     (g) The Indentures have been duly authorized by the Company and, on the
relevant Closing Date, will have been validly executed and delivered by the
Company. When the Indentures have been duly executed and delivered by the
Company, the Indentures will be



                                       9
<PAGE>

valid and binding agreements of the Company, enforceable against the Company in
accordance with their terms except as the enforceability thereof may be limited
by (i) bankruptcy, insolvency, fraudulent conveyance or similar laws affecting
creditors' rights generally and (ii) general principles of equity (regardless of
whether enforcement is considered in a proceeding in equity or at law). On the
relevant Closing Date, the Indentures will conform in all material respects to
the requirements of the Trust Indenture Act of 1939, as amended (the "TIA" or
"Trust Indenture Act"), and the rules and regulations of the Commission
applicable to indentures which are qualified thereunder.

     (h) The Series A Notes have been duly authorized and, on the relevant
Closing Date, will have been validly executed and delivered by the Company. When
the Series A Notes have been issued, executed and authenticated in accordance
with the provisions of the Indentures and delivered to and paid for by the
Initial Purchasers in accordance with the terms of this Agreement, the Series A
Notes will be entitled to the benefits of the Indentures and will be valid and
binding obligations of the Company, enforceable in accordance with their terms
except as the enforceability thereof may be limited by (i) bankruptcy,
insolvency, fraudulent conveyance or similar laws affecting creditors' rights
generally and (ii) general principles of equity (regardless of whether
enforcement is considered in a proceeding in equity or at law). On the relevant
Closing Date, the Series A Notes will conform as to legal matters to the
description thereof contained in the Offering Memorandum.

     (i) On the relevant Closing Date, the Series B Notes will have been duly
authorized by the Company. When the Series B Notes are issued, executed and
authenticated in accordance with the terms of the Exchange Offer (as evidence of
the same underlying indebtedness as that represented by the Series A Notes) and
the Indentures, the Series B Notes will be entitled to the benefits of the
Indentures and will be the valid and binding obligations of the Company,
enforceable against the Company in accordance with their terms, except as the
enforceability thereof may be limited by (i) bankruptcy, insolvency, fraudulent
conveyance or similar laws affecting creditors' rights generally and (ii)
general principles of equity (regardless of whether enforcement is considered in
a proceeding in equity or at law).

     (j) The Registration Rights Agreements have been duly authorized by the
Company and, on the relevant Closing Date, will have been duly executed and
delivered by the Company. When the Registration Rights Agreements have been duly
executed and delivered, the Registration Rights Agreements will be valid and
binding agreements of the Company, enforceable against the Company in accordance
with their terms except as the enforceability thereof may be limited by (i)
bankruptcy, insolvency, fraudulent conveyance or similar laws affecting
creditors' rights generally, (ii) general principles of equity (regardless of
whether enforcement is considered in a proceeding in equity or at law) and (iii)
the enforcement of indemnification and contribution provisions thereof may be
limited by federal and state securities laws and public policy considerations
underlying such laws. On the relevant Closing Date, the Registration Rights
Agreements will conform as to legal matters to the description thereof in the
Offering Memorandum.

     (k) Neither the Company, nor any of the Material Subsidiaries or the
Urbanlink Companies is in violation of its respective (a) articles or by-laws or
(b) Memorandum



                                       10
<PAGE>

of Association or Articles of Association or in default in the performance of
any obligation, agreement, covenant or condition contained in any indenture,
loan agreement, mortgage, lease or other agreement or instrument that is
material to the Company and its subsidiaries, taken as a whole, to which the
Company, or any of the Company's subsidiaries or the Urbanlink Companies is a
party or by which the Company, or any of the Company's subsidiaries or the
Urbanlink Companies or their respective property is bound, except defaults which
would not, in the aggregate have a Material Adverse Effect.

     (l) The execution, delivery and performance of this Agreement and the other
Operative Documents by the Company, the establishment and implementation of the
Canadian Telecommunications Arrangement (as described in the Offering Memorandum
and the Final Canadian Memorandum), compliance by the Company with all
provisions hereof and thereof and the consummation of the transactions
contemplated hereby and thereby will not (i) require any consent, approval,
authorization or other order of, or qualification with, any court or
governmental body or agency (except such as are disclosed in the Offering
Memorandum and as may be required or previously obtained under the securities or
Blue Sky laws of the various states or the Canadian Securities Laws), (ii)
conflict with or constitute a breach of any of the terms or provisions of, or a
default under, the Memorandum of Association or Articles of Association of WFH,
the Company, any of its Material Subsidiaries or the Urbanlink Companies or any
indenture, loan agreement, mortgage, lease or other agreement or instrument that
is material to the Company and its subsidiaries, taken as a whole, to which WFH,
the Company, or any of its subsidiaries or the Urbanlink Companies is a party or
by which WFH, the Company, any of its subsidiaries or the Urbanlink Companies or
their respective property is bound, except those violations or conflicts which
would not, in the aggregate, have a Material Adverse Effect, (iii) violate or
conflict with any applicable law or any rule, regulation, judgment, order or
decree of any court or any governmental body or agency having jurisdiction over
the Company, WFH, any of the Material Subsidiaries or the Urbanlink Companies or
their respective property, (iv) result in the imposition or creation of (or the
obligation to create or impose) a Lien under, any agreement or instrument to
which the Company, WFH, any of the Material Subsidiaries or the Urbanlink
Companies is a party or by which the Company, WFH, any of their subsidiaries or
the Urbanlink Companies or their respective property is bound except as would
not have a Material Adverse Effect, or (v) result in the termination, suspension
or revocation of any Authorization (as defined below) of the Company, WFH, or
any of the Material Subsidiaries or the Urbanlink Companies or result in any
other impairment of the rights of the holder of any such Authorization except
such terminations, suspensions, revocations or impairments as would not have a
Material Adverse Effect.

     (m) Other than as set forth in the Offering Memorandum and the Final
Canadian Memorandum, there are no legal or governmental proceedings pending or,
to the best of the Company's knowledge, threatened to which the Company, any of
its Material Subsidiaries or the Urbanlink Companies is or could be a party or
to which any of their respective property is or could be subject, which might
result, singly or in the aggregate, in a Material Adverse Effect or materially
and adversely affect the ability of the Company, any of its subsidiaries or the
Urbanlink Companies to perform its obligations under this Agreement or any of
the other Operative Documents, to consummate the transactions contemplated
hereby or thereby or to establish and implement the Canadian Telecommunications
Arrangement.



                                       11
<PAGE>

     (n) Except as disclosed in the Offering Memorandum and the Final Canadian
Memorandum, none of the Company, or any of the Company's Material Subsidiaries
or the Urbanlink Companies is a party or subject to the provision of any
injunction, judgment, decree or order of any court, regulatory body,
administrative agency or other governmental body except as would not have a
Material Adverse Effect.

     (o) The Company, each of the Material Subsidiaries and the Urbanlink
Companies is in compliance with all applicable statutes, laws, ordinances,
administrative or governmental rules and regulations of the jurisdictions in
which it is conducting its business except where a failure to be in such
compliance would not have a Material Adverse Effect.

     (p) Except as disclosed in the Offering Memorandum and the Final Canadian
Memorandum, neither the Company nor any of its Material Subsidiaries has
violated any foreign, federal, state, provincial or local law or regulation
relating to the protection of human health and safety, the environment or
hazardous or toxic substances or wastes, pollutants or contaminants
("Environmental Laws"), any provisions of the Employee Retirement Income
Security Act of 1974, as amended ("ERISA") and provisions of any federal or
provincial pension standards legislation (or rules, regulations and
administration policies thereunder) in Canada, or any provisions of the Foreign
Corrupt Practices Act or the rules and regulations promulgated thereunder,
except for such violations which, singly or in the aggregate, would not have a
Material Adverse Effect. (q) Except as disclosed in the Offering Memorandum and
the Final Canadian Memorandum, there are no costs or liabilities associated with
Environmental Laws (including, without limitation, any capital or operating
expenditures required for clean-up (including, without limitation, to remediate
any substance which exceeds decommissioning, remediation or similar guidelines,
standards or criteria under Environmental Laws or applied by governmental
authorities acting under Environmental Laws), closure of properties or
compliance with Environmental Laws or any Authorization, any related constraints
on operating activities and any potential liabilities to third parties or as a
result of government action) which would, singly or in the aggregate, have a
Material Adverse Effect.

     (r) Except as disclosed in the Offering Memorandum and the Final Canadian
Memorandum, each of the Company, its Material Subsidiaries and the Urbanlink
Companies has all permits, licenses, certificates, consents, exemptions,
franchises, authorizations and other approvals (each, an "Authorization") of,
and has made all filings with and notices to, all governmental or regulatory
authorities and self-regulatory organizations and all courts and other
tribunals, including without limitation, under any applicable Environmental
Laws, as are necessary to own, lease, license and operate its respective
properties and to conduct its business except where the failure to have any such
Authorization or to make any such filing or notice would not, singly or in the
aggregate, have a Material Adverse Effect. Except as disclosed in the Offering
Memorandum and the Final Canadian Memorandum, each such Authorization is valid
and in full force and effect and each of the Company, its Material Subsidiaries
and the Urbanlink Companies is in compliance with all the terms and conditions
thereof and with the rules and regulations of the authorities and governing
bodies having jurisdiction with respect thereto except where failure to comply
would not have a Material Adverse Effect; and no event has



                                       12
<PAGE>

occurred (including, without limitation, the receipt of any notice from any
authority or governing body) which allows or, after notice or lapse of time or
both, would allow, revocation, suspension or termination of any such
Authorization or results or, after notice or lapse of time or both, would result
in any other impairment of the rights of the holder of any such Authorization
except where such event would not have a Material Adverse Effect; and such
Authorizations contain no restrictions that are burdensome to the Company, any
of its Material Subsidiaries or the Urbanlink Companies except as would not,
singly or in the aggregate, have a Material Adverse Effect.

     (s) The accountants, PricewaterhouseCoopers LLP and Deloitte & Touche LLP,
that have certified the financial statements and supporting schedules included
in the Preliminary Offering Memorandum, the Preliminary Canadian Memorandum, the
Offering Memorandum and the Final Canadian Memorandum, are independent public
accountants with respect to the Company, as required by the Act and the Exchange
Act and the rules and regulations thereunder, and are independent with respect
to the Company within the meaning of the Companies Act (Nova Scotia). To the
best knowledge of the Company, the historical financial statements and pro forma
financial information, together with related schedules and notes, set forth in
the Preliminary Offering Memorandum, the Preliminary Canadian Memorandum, the
Offering Memorandum and the Final Canadian Memorandum comply as to form in all
material respects with the requirements applicable to registration statements on
Form F-4 under the Act.

     (t) The historical financial statements, together with related schedules
and notes forming part of the Offering Memorandum and the Final Canadian
Memorandum (and any amendment or supplement thereto), present fairly the
consolidated financial position, results of operations and changes in financial
position of the Company and its subsidiaries and the former telecommunications
division of Ledcor on the basis stated in the Offering Memorandum and the Final
Canadian Memorandum at the respective dates or for the respective periods to
which they apply; such statements and related schedules and notes have been
prepared in accordance with generally accepted accounting principles in the
United States consistently applied throughout the periods involved, except as
disclosed therein; and the other financial and statistical information and data
set forth in the Offering Memorandum and the Final Canadian Memorandum (and any
amendment or supplement thereto) are, in all material respects, accurately
presented and prepared on a basis consistent with such financial statements and
the books and records of the Company and its subsidiaries.

     (u) The pro forma financial statements and statistical data included in the
Preliminary Offering Memorandum, the Preliminary Canadian Memorandum, the
Offering Memorandum and the Final Canadian Memorandum have been prepared on a
basis consistent with the historical financial statements and statistical data
of the Company and its subsidiaries and give effect to assumptions used in the
preparation thereof on a reasonable basis and in good faith and present fairly
the historical and proposed transactions contemplated by the Preliminary
Offering Memorandum, the Preliminary Canadian Memorandum, the Offering
Memorandum and the Final Canadian Memorandum. The other pro forma financial and
statistical information and data included in the Offering Memorandum and the
Final Canadian Memorandum are, in all



                                       13
<PAGE>

material respects, accurately presented and prepared on a basis consistent with
the pro forma financial statements.

     (v) The Company is not and, after giving effect to the offering and sale of
the Series A Notes and the application of the net proceeds thereof as described
in the Offering Memorandum, will not be, an "investment company," as such term
is defined in the Investment Company Act of 1940, as amended.

     (w) Except as disclosed in the Registration Statement (No. 333-95621) as
filed with the Securities and Exchange Commission on January 28, 2000 and as
thereafter amended, there are no contracts, agreements or understandings between
the Company and any person granting such person the right to require the Company
to file a registration statement under the Act with respect to any securities of
the Company or to require the Company to include such securities with the Notes
registered pursuant to any Registration Statement.

     (x) Neither the Company nor any of its subsidiaries nor any agent thereof
acting on the behalf of them has taken, and none of them will take, any action
that might cause this Agreement or the issuance or sale of the Series A Notes to
violate Regulation T (12 C.F.R. Part 220), Regulation U (12 C.F.R. Part 221) or
Regulation X (12 C.F.R. Part 224) of the Board of Governors of the Federal
Reserve System.

     (y) No "nationally recognized statistical rating organization" as such term
is defined for purposes of Rule 436(g)(2) under the Act (i) has imposed (or has
informed the Company that it is considering imposing) any condition (financial
or otherwise) on the Company's retaining any rating assigned to the Company, any
securities of the Company or (ii) has indicated to the Company that it is
considering (a) the downgrading, suspension, or withdrawal of, or any review for
a possible change that does not indicate the direction of the possible change
in, any rating so assigned or (b) any change in the outlook for any rating of
the Company, or any securities of the Company.

     (z) Since the respective dates as of which information is given in the
Offering Memorandum and the Final Canadian Memorandum other than as set forth in
the Offering Memorandum and the Final Canadian Memorandum, respectively,
(exclusive of any amendments or supplements thereto subsequent to the date of
this Agreement), (i) there has not occurred any material adverse change or any
development involving a prospective material adverse change in the condition,
financial or otherwise, or the earnings, business, management or operations of
the Company and its subsidiaries, taken as a whole, (ii) there has not been any
material adverse change or any development involving a prospective material
adverse change in the capital stock or in the long-term debt of the Company or
any of its subsidiaries, and (iii) neither the Company nor any of its
subsidiaries has incurred any material liability or obligation, direct or
contingent.

     (aa) Each of the Offering Memorandum and the Final Canadian Memorandum, as
of its date, contains all the information specified in, and meeting the
requirements of, Rule 144A(d)(4) under the Act.



                                       14
<PAGE>

     (bb) When the Series A Notes are issued and delivered pursuant to this
Agreement, the Series A Notes will not be of the same class (within the meaning
of Rule 144A under the Act) as any security of the Company that is listed on a
national securities exchange registered under Section 6 of the Exchange Act or
that is quoted in a United States automated inter-dealer quotation system.

     (cc) No form of general solicitation or general advertising (as defined in
Regulation D under the Act) was used by the Company or any of its
representatives (other than the Initial Purchasers, as to whom the Company makes
no representation) in connection with the offer and sale of the Series A Notes
contemplated hereby, including, but not limited to, articles, notices or other
communications published in any newspaper, magazine, or similar medium or
broadcast over television or radio, or any seminar or meeting whose attendees
have been invited by any general solicitation or general advertising. No
securities of the same class as the Series A Notes have been issued and sold by
the Company within the six-month period immediately prior to the date hereof.

     (dd) Neither the Company, nor any person acting on its behalf, has,
directly or indirectly, (i) made offers or sales of any security, or solicited
offers to buy any security, under circumstances that would require the
distribution of the Series A Notes in the Provinces of Ontario, British
Columbia, Alberta, Saskatchewan, Manitoba, Quebec, New Brunswick, Nova Scotia,
Prince Edward Island and Newfoundland (the "Relevant Provinces") to be qualified
by a prospectus filed in accordance with the securities laws, and the
regulations thereunder, of, and the applicable published rules, policy
statements, blanket orders and notices of the securities regulatory authorities
in, the Relevant Provinces (the "Canadian Securities Laws") or (ii) has engaged
in any advertisement of the Series A Notes in any printed media of general and
regular paid circulation, radio or television or any other form of advertising
in connection with the offer and sale of the Series A Notes in the Relevant
Provinces; provided that no representation is made as to the Initial Purchasers
or any person acting on their behalf.

     (ee) Prior to the effectiveness of any Registration Statement, the
Indentures are not required to be qualified under the TIA, and except for such
determinations and approvals which have already been obtained, no filing with or
authorization, approval, consent, license, order, registration, qualification or
decree of any court or governmental authority or agency in Canada (including any
provincial securities commission or securities regulatory authority) is
necessary to permit the issue, sale and delivery of the Series A Notes by the
Company or the consummation on each Closing Date by the Company of its
obligations under this Agreement, the other Operative Documents, the Offering
Memorandum and the Final Canadian Memorandum.

     (ff) None of the Company or any of its affiliates, nor any person acting on
its or their behalf (other than the Initial Purchasers, as to whom the Company
makes no representation) has engaged or will engage in any directed selling
efforts within the meaning of Regulation S under the Act ("Regulation S") with
respect to the Series A Notes.

     (gg) The Series A Notes offered and sold in reliance on Regulation S have
been and will be offered and sold only in offshore transactions.



                                       15
<PAGE>

     (hh) The sale of the Series A Notes pursuant to Regulation S is not part of
a plan or scheme to evade the registration provisions of the Act.

     (ii) Except for the Company's 12 1/2% Senior Notes due December 15, 2005
and the 12% Senior Notes due August 1, 2009, there is no substantial U.S. market
interest (as defined in Rule 902(n) under the Act) in any debt security of the
Company.

     (jj) The Company is a "foreign issuer" as defined in Rule 902 under the
Act.

     (kk) No registration under the Act of the Series A Notes is required for
the sale of the Series A Notes to the Initial Purchasers as contemplated hereby
or for the Exempt Resales assuming the accuracy of the Initial Purchasers'
representations and warranties and agreements set forth in Section 7 hereof.

     (ll)Assuming (i) that the representations and warranties of the Initial
Purchasers in Section 7 hereof are true and (ii) compliance by the Initial
Purchasers with the covenants set forth in Section 7 hereof, it is not necessary
in connection with the offer, sale and delivery of the Series A Notes in the
manner contemplated by this Agreement, the other Operative Documents and the
Final Canadian Memorandum to file a prospectus in accordance with the Canadian
Securities Laws to qualify the distribution of the Series A Notes in the
Relevant Provinces.

     (mm)Each certificate signed by any officer of the Company and delivered to
the Initial Purchasers or counsel for the Initial Purchasers shall be deemed to
be a representation and warranty by the Company to the Initial Purchasers as to
the matters covered thereby.

     (nn)The Company, its Material Subsidiaries and the Urbanlink Companies have
good and marketable title to all real property and good title to all personal
property owned by them which is material to the business of the Company, its
Material Subsidiaries and Urbanlink, in each case free and clear of all Liens
and defects, except such as are described in the Offering Memorandum and the
Final Canadian Memorandum or such as do not materially affect the value of such
property taken as a whole and do not interfere with the use made and proposed to
be made of such property by the Company, its Material Subsidiaries taken as a
whole and Urbanlink; and any real property and buildings held under lease by the
Company, its Material Subsidiaries and Urbanlink are held by them under valid,
subsisting and enforceable leases with such exceptions as are not material and
do not interfere with the use made and proposed to be made of such property and
buildings by the Company, its subsidiaries and Urbanlink, in each case except as
described in the Offering Memorandum and the Final Canadian Memorandum.

     (oo)The Company, each of its Canadian subsidiaries as set forth in Schedule
D and Urbanlink and Carrier Holdco (collectively, the "Canadian Companies") hold
all Canadian Radio-television and Telecommunications Commission ("CRTC") and
Industry Canada licenses or authorizations and possess adequate certificates,
authorities or permits issued



                                       16
<PAGE>

by appropriate governmental agencies or bodies necessary to conduct the business
now operated by them, other than those disclosed in the Offering Memorandum and
the Final Canadian Memorandum, the absence of which could not reasonably be
expected to, individually or in the aggregate, have a Material Adverse Effect
and have not received any notice of proceedings relating to the revocation or
modification of any such certificate, authority or permit that, if determined
adversely, could reasonably be expected to, individually or in the aggregate,
have a Material Adverse Effect.

     (pp)The Canadian Telecommunications Arrangement (as described in the
Offering Memorandum and the Final Canadian Memorandum) including the execution,
delivery and performance by the parties thereto of (i) the Reseller Agreement
dated April 17, 2000 between Urbanlink, the Company and Worldwide Fiber Network
Services Ltd. ("WF Services"), (ii) the Co-Development Agreement dated April 17,
2000 between the Company and Urbanlink, (iii) the Definitive Agreement dated
April 17, 2000 between Urbanlink and the Company, (iv) the Shareholders
Agreement dated April 17, 2000 between Carrier Holdco, Urbanlink, the Company,
360 Urbanlink Ltd. and WFH, (v) the Capacity Purchase Agreement dated April 17,
2000 between Urbanlink and WF Services, (vi) the Fibre Optic Maintenance
Agreement dated April 17, 2000 between Urbanlink and Worldwide Fiber Network
Services Ltd., (vii) the Roll-Over Agreement dated April 17, 2000 between 360
Urbanlink Ltd. and Ledcor Communications Ltd., (viii) the Roll-Over Agreement
dated April 17, 2000 between 360 Urbanlink Ltd. and WFI-CN Fibre Inc., (ix) the
Roll-Over Agreement dated April 17, 2000 between 360 Urbanlink Ltd. and
Worldwide Fiber (F.O.T.S.) No. 3, Ltd., (x) the Roll-Over Agreement dated April
17, 2000 between 360 Urbanlink Ltd. and WF Services, (xi) the Roll-Over
Agreement dated April 17, 2000 between 360 Urbanlink Ltd. and Worldwide Fiber
Networks Ltd., (xii) the Roll-Over Agreement dated April 17, 2000 between
Carrier Holdco and 360 Urbanlink Ltd., (xiii) the Roll-Over Agreement dated
April 17, 2000 between Carrier Holdco and WFH, (xiv) the Asset Purchase
Agreement dated April 17, 2000 between Urbanlink and Ledcor Communications Ltd.,
(xv) the Asset Purchase Agreement dated April 17, 2000 between WFI-CN Fibre Inc.
and Ledcor Cayer Inc., (xvi) the Asset Purchase Agreement dated April 17, 2000
between Urbanlink and WF Services, (xvii) the Asset Purchase Agreement dated
April 17, 2000 between Urbanlink Equipment Ltd. and WF Services, (xviii) the
Asset Purchase Agreement dated April 17, 2000 between Urbanlink and WFI-CN Fibre
Inc., (xix) the Asset Purchase Agreement dated April 17, 2000 between Urbanlink
and Ledcor Communications Ltd., (xx) the Asset Purchase Agreement dated April
17, 2000 between Urbanlink and Worldwide Fiber (F.O.T.S.) No. 3, Ltd., (xxi) the
Asset Purchase Agreement dated April 17, 2000 between Urbanlink and WFI-CN Fibre
Inc., (xxii) the Asset Purchase Agreement dated April 17, 2000 between WFI-CN
Fibre Inc. and Ledcor Communications Ltd., (xxiii) the Asset Purchase Agreement
dated April 17, 2000 between WFI-CN Fibre Inc. and Ledcor Cayer Inc., (xxiv) the
Asset Purchase Agreement dated April 17, 2000 between WFI-CN Fibre Inc. and
Ledcor Communications Ltd. does not violate or conflict with any provisions of
the Telecommunications Act or the Ownership Regulations (as defined below) or
any applicable law, rule, regulation, judgment, order or decree of any court or
any governmental body or agency having jurisdiction over any of the Canadian
Companies (as defined below) and will not result in any tax or other consequence
to the Company, actual or contingent, which will have a Material Adverse Effect.



                                       17
<PAGE>

     (qq)(i) Immediately upon completion of the Canadian Telecommunications
Arrangement Urbanlink was eligible to operate as a telecommunications common
carrier in Canada, as defined under and in accordance with the
Telecommunications Act (Canada) (the "Telecommunications Act") and the Canadian
Telecommunications Common Carrier Ownership and Control Regulations (the
"Ownership Regulations"); (ii) none of the Canadian Companies violated the
prohibition contained in subsection 16(4) of the Telecommunications Act against
operating in Canada as a telecommunications common carrier when ineligible to do
so; and (iii) control of Urbanlink was not exercised by any person(s) that is
(are) not Canadian, in accordance with the meanings ascribed to the term
"control" under the Telecommunications Act and the term "Canadian" under the
Ownership Regulations; (iv) Urbanlink and Carrier Holdco were not in violation
of any judgment, decree, order, writ, law, statute, rule or regulation rendered
or enacted in Canada respecting telecommunications and the regulation within
Canada of telecommunications common carriers, as defined in the
Telecommunications Act, applicable to Urbanlink and Carrier Holdco, or any
interpretation or policy relating thereto known to be applicable by and to them;
and (v) other than as described in the Canadian Prospectus and the Prospectus,
the Canadian Companies (with the exception of Urbanlink and Carrier Holdco) are
not in violation of any judgment, decree, order writ, law, statute, rule or
regulation rendered or enacted in Canada respecting telecommunications and the
regulation within Canada of telecommunications common carriers, as defined in
the Telecommunications Act, applicable to such Canadian Companies, or any
interpretation or policy relating thereto known to be applicable by and to them.

     (rr) Immediately upon completion of the Canadian Telecommunications
Arrangement (i) not less than eighty percent of the members of the board of
directors of Urbanlink were individual Canadians, as defined under the Ownership
Regulations; (ii) Canadians, as defined under the Ownership Regulations,
beneficially owned, directly or indirectly, in the aggregate and otherwise than
by way of security only, not less than eighty percent of the issued and
outstanding voting shares, as defined under the Ownership Regulations, of
Urbanlink; (iii) Carrier Holdco, in respect of its ownership of and control over
Urbanlink, was a carrier holding corporation, as defined under the Ownership
Regulations; and (iv) Carrier Holdco was a carrier holding corporation that is a
qualified corporation, as defined under the Ownership Regulations.

     (ss) With the exception of Urbanlink, no other Canadian Company (as defined
in Section 6 (oo) operates in Canada as a telecommunications common carrier as
that term is defined in the Telecommunications Act.

     (tt) Except as disclosed in the Offering Memorandum and the Final Canadian
Memorandum, neither the Company nor its subsidiaries nor Urbanlink is currently,
nor will the conduct of its business as described in the Offering Memorandum
cause it to be subject to the provisions of the Communications Act of 1934, as
amended by the Telecommunications Act of 1996 (the "Communications Act") or to
any rules, regulations and policies of the Federal Communications Commission
(the "FCC") related hereto.

     (uu) The Company and its subsidiaries are in compliance with all federal,
state and local telecommunications laws, rules, regulations and policies (i) in
the United



                                       18
<PAGE>

States to which they are subject, including the Communications Act and the
related rules, regulations and policies of the FCC except as would not have a
Material Adverse Effect, and (ii) in Europe to which they are subject, including
the Full Competition Directive, the Licensing Directive, and the Interconnection
Directive and the related rules, regulations and policies of each of the member
states of the European Union except as would not have a Material Adverse Effect.

     (vv) The Company and its subsidiaries, and as of each Closing Date and
Urbanlink immediately following completion of the Offering Memorandum and Final
Canadian Memorandum will, own or possess, or can acquire on reasonable terms,
all patents, patent rights, licenses, inventions, copyrights, know-how
(including trade secrets and other unpatented and/or unpatentable proprietary or
confidential information, systems or procedures), trademarks, service marks and
trade names ("intellectual property") currently employed by them in connection
with the business now operated by them except where the failure to own or
possess or otherwise be able to acquire such intellectual property would not,
singly or in the aggregate, have a Material Adverse Effect; and neither the
Company nor any of its subsidiaries has received any notice of infringement of
or conflict with asserted rights of others with respect to any of such
intellectual property which, singly or in the aggregate, if the subject of an
unfavorable decision, ruling or finding, would have a Material Adverse Effect.

     (ww)Except as disclosed in the Offering Memorandum and the Final Canadian
Memorandum, no relationship, direct or indirect, exists between or among the
Company or any of its subsidiaries or affiliates on the one hand, and the
directors, officers, stockholders, customers or suppliers of the Company or any
of its subsidiaries or affiliates on the other hand, which would be required by
the Act to be described in the Offering Memorandum if the Offering Memorandum
were a prospectus included in a registration statement on Form F-4 filed with
the Commission.

     (xx)There is no (i) significant unfair labor practice complaint, grievance
or arbitration proceeding pending or threatened against the Company or any of
its subsidiaries before the National Labor Relations Board, Canada Labor
Relations Board or any state, provincial, or local labor relations board, (ii)
strike, labor dispute, slowdown or stoppage pending or threatened against the
Company or any of its subsidiaries or (iii) union representation question
existing with respect to the employees of the Company or any of its
subsidiaries, except in the case of clauses (i), (ii) and (iii) for such actions
which, singly or in the aggregate, would not have a Material Adverse Effect. To
the best knowledge of the Company, no collective bargaining organizing
activities are taking place with respect to the Company or any of its
subsidiaries.

     (yy)The Company and each of its Material Subsidiaries maintain a system of
internal accounting controls sufficient to provide reasonable assurance that (i)
transactions are executed in accordance with management's general or specific
authorizations; (ii) transactions are recorded as necessary to permit
preparation of financial statements in conformity with the United States
generally accepted accounting principles and to maintain asset accountability;
(iii) access to assets is permitted only in accordance with management's general
or specific authorization; and (iv) the recorded accountability for assets is
compared with the



                                       19
<PAGE>

existing assets at reasonable intervals and appropriate action is taken with
respect to any differences.

     (zz)All material tax returns required to be filed by the Company and each
of its subsidiaries in any jurisdiction have been filed, other than those
filings being contested in good faith, and all material taxes, including
withholding taxes, penalties and interest, assessments, fees and other charges
due pursuant to such returns or otherwise or pursuant to any assessment received
by the Company or any of its subsidiaries have been paid, other than those being
contested in good faith and for which adequate reserves have been provided
except where failure to file would not have a Material Adverse Effect.

     (aaa) The indebtedness represented by the Series A Notes is being incurred
for proper purposes and in good faith and the Company will be on each Closing
Date (after giving effect to the application of the proceeds from the issuance
of the Series A Notes) solvent, and will have on each Closing Date (after giving
effect to the application of the proceeds from the issuance of the Series A
Notes) sufficient capital for carrying on its respective business and will be on
each Closing Date (after giving effect to the application of the proceeds from
the issuance of the Series A Notes) able to pay its debts as they mature.

     (bbb) No action has been taken and no law, statute, rule or regulation or
order has been enacted, adopted or issued by any governmental agency or body
which prevents the execution, delivery and performance of any of the Operative
Documents or, the issuance of the Series A Notes, or suspends the sale of the
Series A Notes in any jurisdiction referred to in Section 5(e); and no
injunction, restraining order or other order or relief of any nature by a
federal or state court or other tribunal of competent jurisdiction has been
issued with respect to the Company or any of its subsidiaries which would
prevent or suspend the issuance or sale of the Series A Notes in any
jurisdiction referred to in Section 5(e), including the Relevant Provinces.

     (ccc) Except as set forth in the Offering Memorandum and the Final Canadian
Memorandum, there have been no transactions, agreements, arrangements or
understandings between the Company or any of its Subsidiaries that would be
required to be disclosed under Item 404 of Regulation S-K under the Securities
Act, if the Offering Memorandum were a prospectus included in a registration
statement on Form F-4 filed with the Commission.

     (ddd) The Company has made available to the Initial Purchasers true and
complete copies of all agreements between the Company or any of its directors,
officers or employees on one hand and Ledcor and Urbanlink, Canadian National
Railway Company, Illinois Central Railway Company or Michels Pipeline
Construction Inc. or any of their respective directors, officers or employees on
the other hand.

     (eee) No withholding tax imposed under the federal laws of Canada or the
laws of the Province of British Columbia will be payable in respect of the
payment or crediting of any discount, commission or fee as contemplated by this
Agreement to an Initial Purchaser that is not resident in Canada, but resident
in the United States or if a partnership, all



                                       20
<PAGE>

the members of which are not resident in Canada but resident in the United
States, in each case, for purposes of the Income Tax Act (Canada) and the
Canada-US Income Tax Convention, 1980 (a "U.S. Initial Purchaser") or any
interest or deemed interest on the resale of Series A Notes by a U.S. Initial
Purchaser to U.S. residents, provided that such U.S. Initial Purchaser deals at
arm's length with the Company and that any such discount, commission or fee is
payable in respect of services rendered by such U.S. Initial Purchaser outside
of Canada that are performed by such U.S. Initial Purchaser in the ordinary
course of business carried on by it that includes the performance of such
services for a fee and any such amount is reasonable in the circumstances.

     (fff) No goods and services tax imposed under the federal laws of Canada
will be collectible by a U.S. Initial Purchaser in respect of the payment or
crediting of any discount, commission or fee as contemplated by this Agreement
to any U.S. Initial Purchaser, provided that any such discount, commission or
fee is payable in respect of services performed by such Initial Purchaser wholly
outside of Canada.

     (ggg) No stamp, duty, registration or documentary taxes, duties or similar
charges are payable by or on behalf of the Initial Purchasers to the Canadian
government or to any political subdivision or taxing authority thereof or
therein in connection with (A) the issuance, sale and delivery by the Company to
or for the respective accounts of the Initial Purchasers of the Notes or (B) the
sale and delivery outside Canada by the Initial Purchasers of the Notes to the
initial purchasers thereof in the manner contemplated in this Agreement.

     (hhh) Neither the Company nor any of its Restricted Subsidiaries, as
defined in the indenture governing the Company's 12% Senior Notes due 2009, has,
nor is any of its or their respective property or assets subject to, any
obligation (including, without limitation, any mortgage, assignment, pledge,
charge or other security interest) under the Hibernia Facility (as defined).

     The Company acknowledges that the Initial Purchasers and, for purposes of
the opinions to be delivered to the Initial Purchasers pursuant to Section 9
hereof, counsel to the Company and counsel to the Initial Purchasers will rely
upon the accuracy and truth of the foregoing representations and hereby consents
to such reliance.

     7. Initial Purchasers' Representations and Warranties. Each of the Initial
Purchasers, severally and not jointly, represents and warrants to the Company,
and agrees that:

     (a) Such Initial Purchaser is either a QIB or an Accredited Investor, in
either case, with such knowledge and experience in financial and business
matters as is necessary in order to evaluate the merits and risks of an
investment in the Series A Notes.

     (b) Such Initial Purchaser (A) is not acquiring the Series A Notes with a
view to any distribution thereof or with any present intention of offering or
selling any of the Series A Notes in a transaction that would violate the Act or
the securities laws of any state of the United States or any other applicable
jurisdiction and (B) will be reoffering and reselling the Series A Notes only to
(x) QIBs in reliance on the exemption from the registration requirements



                                       21
<PAGE>

of the Act provided by Rule 144A and (y) in offshore transactions in reliance
upon Regulation S under the Act.

     (c) Such Initial Purchaser agrees that no form of general solicitation or
general advertising (within the meaning of Regulation D under the Act) has been
or will be used by such Initial Purchaser or any of its representatives in
connection with the offer and sale of the Series A Notes pursuant hereto,
including, but not limited to, articles, notices or other communications
published in any newspaper, magazine or similar medium or broadcast over
television or radio, or any seminar or meeting whose attendees have been invited
by any general solicitation or general advertising.

     (d) Such Initial Purchaser agrees that, in connection with Exempt Resales,
such Initial Purchaser will solicit offers to buy the Series A Notes only from,
and will offer to sell the Series A Notes only to, Eligible Purchasers. Each
Initial Purchaser further agrees that it will offer to sell the Series A Notes
only to, and will solicit offers to buy the Series A Notes only from (A)
Eligible Purchasers that the Initial Purchaser reasonably believes are QIBs, (B)
Regulation S Purchasers, in each case, that agree that (x) the Series A Notes
purchased by them may be resold, pledged or otherwise transferred within the
time period referred to under Rule 144(k) (taking into account the provisions of
Rule 144(d) under the Act, if applicable) under the Act, as in effect on the
date of the transfer of such Series A Notes, only (I) to the Company or any of
its subsidiaries, (II) to a person whom the seller reasonably believes is a QIB
purchasing for its own account or for the account of a QIB in a transaction
meeting the requirements of Rule 144A under the Act, (III) in an offshore
transaction (as defined in Rule 902 under the Act) meeting the requirements of
Rule 904 of the Act, (IV) in a transaction meeting the requirements of Rule 144
under the Act, (V) in accordance with another exemption from the registration
requirements of the Act (and based upon an opinion of counsel acceptable to the
Company) or (VI) pursuant to an effective registration statement and, in each
case, in accordance with the applicable securities laws of any state of the
United States or any other applicable jurisdiction and (y) they will deliver to
each person to whom such Series A Notes or an interest therein is transferred a
notice substantially to the effect of the foregoing.

     (e) Such Initial Purchaser and its affiliates or any person acting on its
or their behalf have not engaged or will not engage in any directed selling
efforts within the meaning of Regulation S with respect to the Series A Notes.

     (f) The Series A Notes offered and sold by such Initial Purchaser pursuant
hereto in reliance on Regulation S have been and will be offered and sold only
in offshore transactions.

     (g) The sale of the Series A Notes offered and sold by such Initial
Purchaser pursuant hereto in reliance on Regulation S is not part of a plan or
scheme to evade the registration provisions of the Act.

     (h) Neither such Initial Purchaser nor its affiliates or any person acting
on its or its affiliates' behalf has made or will make offers or sales of the
Series A Notes in the



                                       22
<PAGE>

Relevant Provinces by means of any printed media of general and regular paid
circulation, radio or television or any other forms of advertising.

     (i) The Series A Notes to be sold in Canada have only been offered, and
will only be sold, to purchasers resident in the Relevant Provinces.

     (j) Such Initial Purchaser acknowledges that no prospectus has been filed
in accordance with the Canadian Securities Laws qualifying the distribution of
the Series A Notes in the Relevant Provinces and that the Series A Notes may not
be offered or sold in the Relevant Provinces except pursuant to an applicable
exemption from the prospectus requirements of the applicable Canadian Securities
Laws and from a dealer appropriately registered under the applicable Canadian
Securities Laws or, other than in Ontario, in accordance with an exemption from
the registration requirements of such laws.

     (k) Assuming the purchasers' representations, covenants and resale
restrictions set forth in the Final Canadian Memorandum are true as to each
purchaser of Series A Notes in Canada, such Initial Purchaser will not offer,
sell or deliver any of the Series A Notes, directly or indirectly, in Canada, or
to or for the benefit of any person who such Initial Purchaser knows is a
resident thereof, in violation of the Canadian Securities Laws.

     (l) Such Initial Purchaser will provide the Company with information
regarding the sale of the Series A Notes to purchasers in the Relevant Provinces
required to be disclosed under applicable Canadian Securities Laws and will
cooperate with the Company in ensuring that such disclosures are made within the
time periods specified under such laws.

     Such Initial Purchaser acknowledges that the Company and, for purposes of
the opinions to be delivered to each Initial Purchaser pursuant to Section 9
hereof, counsel to the Company and counsel to the Initial Purchasers will rely
upon the accuracy and truth of the foregoing representations and each such
Initial Purchaser hereby consents to such reliance.

     8. Indemnification.

     (a) The Company agrees to indemnify and hold harmless the Initial
Purchasers, their respective directors and officers and each person, if any, who
controls any Initial Purchaser within the meaning of Section 15 of the Act or
Section 20 of the Exchange Act, from and against any and all losses, claims,
damages, liabilities and judgments (including, without limitation, any legal or
other expenses incurred in connection with investigating or defending any
matter, including any action, that could give rise to any such losses,



                                       23
<PAGE>

claims, damages, liabilities or judgments) caused by any untrue statement or
alleged untrue statement of a material fact contained in the Offering Memorandum
(or any amendment or supplement thereto), the Final Canadian Memorandum (or any
amendment or supplement thereto), the Preliminary Offering Memorandum, the
Preliminary Canadian Memorandum or any Rule 144A Information provided by the
Company to any holder or prospective purchaser of Series A Notes pursuant to
Section 5(h) or caused by any omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading, except insofar as such losses, claims, damages, liabilities or
judgments are caused by any such untrue statement or omission or alleged untrue
statement or omission based upon information furnished in writing to the Company
by such Initial Purchasers expressly for use in the Preliminary Offering
Memorandum, the Preliminary Canadian Memorandum, the Offering Memorandum or the
Final Canadian Memorandum; provided, however, that the foregoing indemnity
agreement with respect to any Preliminary Offering Memorandum or Preliminary
Canadian Memorandum, as the case may be, shall not inure to the benefit of any
Initial Purchaser who failed to deliver an Offering Memorandum or Final Canadian
Memorandum, as then amended or supplemented, (so long as the Offering Memorandum
or Final Canadian Memorandum and any amendment or supplement thereto was
provided by the Company to the Initial Purchasers in the requisite quantity and
on a timely basis to permit proper delivery on or prior to each Closing Date) to
the person asserting any losses, claims, damages, liabilities or judgments
caused by any untrue statement or alleged untrue statement of a material fact
contained in the Preliminary Offering Memorandum or Preliminary Canadian
Memorandum, as the case may be, or caused by any omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, if such material misstatement or omission
or alleged material misstatement or omission was cured in the Offering
Memorandum or the Final Canadian Memorandum, as so amended or supplemented.

     (b) The Initial Purchasers agree severally, not jointly, to indemnify and
hold harmless the Company, its directors and officers and each person, if any,
who controls (within the meaning of Section 15 of the Act or Section 20 of the
Exchange Act) the Company, to the same extent as the foregoing indemnity from
the Company to the Initial Purchasers but only with reference to information
furnished in writing to the Company by the Initial Purchaser expressly for use
in the Preliminary Offering Memorandum, the Preliminary Canadian Memorandum, the
Offering Memorandum or the Final Canadian Memorandum, as applicable.

     (c) In case any action shall be commenced involving any person in respect
of which indemnity may be sought pursuant to Section 8(a) or 8(b) (the
"indemnified party"), the indemnified party shall promptly notify the person
against whom such indemnity may be sought (the "indemnifying party") in writing
and the indemnifying party shall assume the defense of such action, including
the employment of counsel reasonably satisfactory to the indemnified party and
the payment of all fees and expenses of such counsel, as incurred (except that
in the case of any action in respect of which indemnity may be sought pursuant
to both Sections 8(a) and 8(b), the Initial Purchasers shall not be required to
assume the defense of such action pursuant to this Section 8(c), but may employ
separate counsel and participate in the defense thereof, but the fees and
expenses of such counsel, except as provided below, shall be at the expense of
the Initial Purchasers). Any indemnified party shall have the right to employ
separate counsel in any such action and participate in the defense thereof, but
the fees and expenses of such counsel shall be at the expense of the indemnified
party unless (i) the employment of such counsel shall have been specifically
authorized in writing by the indemnifying party, (ii) the indemnifying party
shall have failed to assume the defense of such action or employ counsel
reasonably satisfactory to the indemnified party or (iii) the named parties to
any such action (including any impleaded parties) include both the indemnified
party and the indemnifying party, and the indemnified party shall have been
advised by such counsel that there may be one or more legal defenses available
to it which are different from or additional



                                       24
<PAGE>

to those available to the indemnifying party (in which case the indemnifying
party shall not have the right to assume the defense of such action on behalf of
the indemnified party). In any such case, the indemnifying party shall not, in
connection with any one action or separate but substantially similar or related
actions in the same jurisdiction arising out of the same general allegations or
circumstances, be liable for the fees and expenses of more than one separate
firm of attorneys with respect to matters of U.S. law and one separate firm of
attorneys with respect to matters of Canadian law (in each case, in addition to
any local counsel) for all indemnified parties and all such fees and expenses
shall be reimbursed as they are incurred. Such firms shall be designated in
writing by Donaldson, Lufkin & Jenrette Securities Corporation, in the case of
the parties indemnified pursuant to Section 8(a), and by the Company, in the
case of parties indemnified pursuant to Section 8(b). The indemnifying party
shall indemnify and hold harmless the indemnified party from and against any and
all losses, claims, damages, liabilities and judgments by reason of any
settlement of any action (i) effected with its written consent or (ii) effected
without its written consent if the settlement is entered into more than twenty
business days after the indemnifying party shall have received a request from
the indemnified party for reimbursement for the fees and expenses of counsel (in
any case where such fees and expenses are at the expense of the indemnifying
party) and, prior to the date of such settlement, the indemnifying party shall
have failed to comply with such reimbursement request. No indemnifying party
shall, without the prior written consent of the indemnified party, effect any
settlement or compromise of, or consent to the entry of judgment with respect
to, any pending or threatened action in respect of which the indemnified party
is or could have been a party and indemnity or contribution may be or could have
been sought hereunder by the indemnified party, unless such settlement,
compromise or judgment (i) includes an unconditional release of the indemnified
party from all liability on claims that are or could have been the subject
matter of such action and (ii) does not include a statement as to or an
admission of fault, culpability or a failure to act, by or on behalf of the
indemnified party.

     (d) To the extent the indemnification provided for in this Section 8 is
unavailable to an indemnified party or insufficient in respect of any losses,
claims, damages, liabilities or judgments referred to therein, then each
indemnifying party, in lieu of indemnifying such indemnified party, shall
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages, liabilities and judgments (i) in such
proportion as is appropriate to reflect the relative benefits received by the
Company, on the one hand, and the Initial Purchasers on the other hand from the
offering of the Series A Notes or (ii) if the allocation provided by clause
8(d)(i) above is not permitted by applicable law, in such proportion as is
appropriate to reflect not only the relative benefits referred to in clause
8(d)(i) above but also the relative fault of the Company, on the one hand, and
the Initial Purchasers, on the other hand, in connection with the statements or
omissions which resulted in such losses, claims, damages, liabilities or
judgments, as well as any other relevant equitable considerations. The relative
benefits received by the Company, on the one hand and the Initial Purchasers, on
the other hand, shall be deemed to be in the same proportion as the total net
proceeds from the offering of the Series A Notes (after underwriting discounts
and commissions, but before deducting expenses) received by the Company, and the
total discounts and commissions received by the Initial Purchasers bear to the
total price to investors of the Series A Notes, in each case as set forth in the
table on the cover page of the Offering Memorandum. The relative fault of the


                                       25
<PAGE>

Company, on the one hand, and the Initial Purchasers, on the other hand, shall
be determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to information supplied by the Company, on the one hand,
or the Initial Purchasers, on the other hand, and the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission.

     The Company and the Initial Purchasers agree that it would not be just and
equitable if contribution pursuant to this Section 8(d) were determined by pro
rata allocation (even if the Initial Purchasers were treated as one entity for
such purpose) or by any other method of allocation which does not take account
of the equitable considerations referred to in the immediately preceding
paragraph. The amount paid or payable by an indemnified party as a result of the
losses, claims, damages, liabilities or judgments referred to in the immediately
preceding paragraph shall be deemed to include, subject to the limitations set
forth above, any legal or other expenses incurred by such indemnified party in
connection with investigating or defending any matter, including any action,
that could have given rise to such losses, claims, damages, liabilities or
judgments. Notwithstanding the provisions of this Section 8, the Initial
Purchasers shall not be required to contribute any amount in excess of the
amount by which the total discounts and commissions received by such Initial
Purchasers exceeds the amount of any damages which the Initial Purchaser has
otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent
misrepresentation. The Initial Purchasers' obligation to contribute pursuant to
this Section 8(d) are several and in proportion to the respective principal
amount of Series A Notes purchased by each of the Initial Purchasers hereunder
and not joint.

     (e) The remedies provided for in this Section 8 are not exclusive and shall
not limit any rights or remedies which may otherwise be available to any
indemnified party at law or in equity.

     (f) For purposes of this Section 8, the Company and the Initial Purchasers
agree that the only information furnished in writing to the Company by the
Initial Purchasers expressly for use in the Preliminary Offering Memorandum, the
Preliminary Canadian Memorandum, the Offering Memorandum or the Final Canadian
Memorandum is set forth in the [third, fourth, fifth, sixth (excluding the first
three sentences), seventh, eighth [and] ninth [and tenth]] paragraphs under the
heading "Plan of Distribution."

     9. Conditions of Initial Purchasers' Obligations. The obligations of the
Initial Purchasers to purchase the Series A Notes under this Agreement are
subject to the satisfaction of each of the following conditions:

     (a) All the representations and warranties of the Company contained in this
Agreement that are qualified as to materiality shall be true and correct on each
Closing Date and all the representations and warranties of the Company contained
in this Agreement that are



                                       26
<PAGE>

not qualified as to materiality shall be true and correct in all material
respects on each Closing Date, in each case with the same force and effect as if
made on and as of such Closing Date.

     (b) On or after the date hereof, (i) there shall not have occurred any
downgrading, suspension or withdrawal of, nor shall any notice have been given
of any potential or intended downgrading, suspension or withdrawal of, or of any
review (or of any potential or intended review) for a possible change that does
not indicate the direction of the possible change in, any rating of the Company
or any securities of the Company (including, without limitation, the placing of
any of the foregoing ratings on credit watch with negative or developing
implications or under review with an uncertain direction) by any "nationally
recognized statistical rating organization" as such term is defined for purposes
of Rule 436(g)(2) under the Act, (ii) there shall not have occurred any change,
nor shall any notice have been given of any potential or intended change, in the
outlook for any rating of the Company or any securities of the Company by any
such rating organization and (iii) no such rating organization shall have given
notice that it has assigned (or is considering assigning) a lower rating to the
Notes than that on which the Notes were marketed.

     (c) Since the respective dates as of which information is given in the
Offering Memorandum and the Final Canadian Memorandum other than as set forth in
the Offering Memorandum and the Final Canadian Memorandum (exclusive of any
amendments or supplements thereto subsequent to the date of this Agreement), (i)
there shall not have occurred any change or any development involving a
prospective change in the condition, financial or otherwise, or the earnings,
business, management or operations of the Company and its subsidiaries, taken as
a whole, (ii) there shall not have been any change or any development involving
a prospective change in the capital stock or in the long-term debt of the
Company or any of its subsidiaries and, (iii) neither the Company nor any of its
subsidiaries shall have incurred any liability or obligation, direct or
contingent, the effect of which, in any such case described in clause 9(c)(i),
9(c)(ii) or 9(c)(iii), in your judgment, is material and adverse and, in your
judgment, makes it impracticable to market the Series A Notes on the terms and
in the manner contemplated in the Offering Memorandum and the Final Canadian
Memorandum.

     (d) You shall have received on each Closing Date a certificate dated such
Closing Date, signed an officer of the Company, confirming the matters set forth
in Sections 6(z), 9(a) and 9(b) and stating that the Company has complied with
all the agreements and satisfied all of the conditions herein contained and
required to be complied with or satisfied on or prior to such Closing Date.

     (e) You shall have received on such Closing Date an opinion (satisfactory
to you and counsel for the Initial Purchasers), dated such Closing Date, of
Cahill Gordon and Reindel, special U.S. counsel for the Company, to the effect
that:

          (i) assuming due authorization of the Series A Notes by the Company,
     the Series A Notes, when executed and delivered in accordance with the
     provisions of the Indentures (assuming the due authorization, execution and
     delivery of the Indentures by the Trustee and the due authentication and
     delivery of the Series A Notes by the Trustee in



                                       27
<PAGE>

     accordance with the Indentures) and paid for by the Initial Purchasers in
     accordance with the terms of this Agreement, will be entitled to the
     benefits of the Indentures and will be valid and binding obligations of the
     Company enforceable against the Company in accordance with their terms (A)
     except as the enforceability thereof may be limited (i) by (x) bankruptcy,
     insolvency, fraudulent conveyance, reorganization, moratorium and other
     similar laws now or hereafter in effect relating to or affecting creditors'
     rights generally and (y) general principles of equity (regardless of
     whether enforcement is sought in a proceeding at law or in equity) and (ii)
     with respect to Section 6.12 of the Indentures to the extent it provides
     for the Company's indemnity against loss in connection with a court
     judgment in another currency and (B) that such firm need express no opinion
     as to the enforceability of the waiver of rights or defenses contained in
     Section 4.06 of the Indentures;

          (ii) assuming the due authorization of the Indentures by the Company,
     the Indentures have been duly executed and delivered by the Company, to the
     extent execution and delivery are governed by New York laws, and, assuming
     the due authorization, execution and delivery thereof by the Trustee,
     constitute valid and binding agreements of the Company, enforceable against
     the Company in accordance with its terms (A) except as the enforceability
     thereof may be limited (i) by (x) bankruptcy, insolvency, fraudulent
     conveyance, reorganization, moratorium and other similar laws now or
     hereafter in effect relating to or affecting creditors' rights generally
     and (y) general principles of equity (regardless of whether enforcement is
     sought in a proceeding at law or in equity) and (ii) with respect to
     Section 6.12 of the Indentures to the extent it provides for the Company's
     indemnity against loss in connection with a court judgment in another
     currency and (B) that such firm need express no opinion as to the
     enforceability of the waiver of rights or defenses contained in Section
     4.06 of the Indentures;

          (iii) assuming due authorization by the Company, this Agreement has
     been duly executed and delivered by the Company, to the extent that
     execution and delivery are governed by New York law;

          (iv) assuming the due authorization of the Registration Rights
     Agreements by the Company and the due authorization, execution and delivery
     thereof by the Initial Purchasers, the Registration Rights Agreements have
     been duly executed and delivered by the Company, to the extent that
     execution and delivery are governed by New York laws, and constitute valid
     and binding agreements of the Company, enforceable against the Company in
     accordance with their terms, except as the enforceability thereof may be
     limited by (x) bankruptcy, insolvency, fraudulent conveyance,
     reorganization, moratorium and other similar laws now or hereafter in
     effect relating to or affecting creditors' rights



                                       28
<PAGE>

     generally, (y) general principles of equity (regardless of whether
     enforcement is sought in a proceeding at law or in equity) and (z) any
     rights to indemnity or contribution thereunder may be limited by federal
     and state securities laws and public policy considerations;

          (v) the statements under the captions "Description of Notes," and
     "Description of Other Indebtedness" in the Offering Memorandum, insofar as
     such statements constitute a summary of the documents referred to therein,
     fairly summarize in all material respects such documents;

          (vi) the statements in the Offering Memorandum under the caption
     "Material United States and Canadian Income Tax Considerations," to the
     extent they constitute matters of United States law or legal conclusions
     with respect thereto, have been prepared or reviewed by us and are correct
     in all material respects and fairly summarize the matters set forth
     therein;

          (vii) the execution, delivery and performance by the Company of this
     Agreement, the Indentures, the Series A Notes and the Registration Rights
     Agreements, the compliance by the Company with all provisions hereof and
     thereof and the consummation of the transactions contemplated hereby and
     thereby: (i) do not conflict with or violate any federal statute of the
     United States of America or any statute of the State of New York or any
     rule or regulation thereunder (provided that no opinion is expressed in
     this paragraph as to compliance with the Act, any state securities or blue
     sky laws or the Telecommunications Act of 1996, as amended, and the rules
     and regulations thereunder); or (ii) conflict with or constitute a breach
     of any of the terms or provisions of, or a default under the indenture
     governing the Company's 12% Senior Notes due 2009, the indenture governing
     the Company's 12 1/2% Senior Notes due 2008, and the agreements governing
     the Hibernia Project Financing Facilities entered into by the Company,
     Goldman Sachs, DLJ, Credit Suisse First Boston, Toronto Dominion, Bank of
     Montreal and EDC;

          (viii) the Company is not and, after giving effect to the offering and
     sale of the Series A Notes and the application of the net proceeds thereof
     as described in the Offering Memorandum, will not be, an "investment
     company" as such term is defined in the Investment Company Act of 1940, as
     amended;

          (ix) the Indentures comply as to form in all material respects with
     the requirements of the TIA, as amended, and as in effect on the date
     hereof, and the rules and regulations of the Commission applicable to an
     indenture which is qualified thereunder;



                                       29
<PAGE>

          (x) assuming that (i) each Initial Purchaser is a QIB or a Regulation
     S Purchaser, (ii) the accuracy of, and compliance with, the Initial
     Purchasers' representations and agreements contained in Section 7 of this
     Agreement and (iii) the accuracy of the representations of the Company set
     forth in Sections 6(bb), (cc), (ff), (gg),(hh), (ii) and (jj) of this
     Agreement, (A) no registration under the Act of the Series A Notes is
     required for the sale of the Series A Notes to the Initial Purchasers as
     contemplated by this Agreement or for the Exempt Resales, (B) it is not
     necessary in connection with the offer, sale and delivery of the Series A
     Notes to the Initial Purchasers in the manner contemplated by this
     Agreement or in connection with the Exempt Resales to qualify the
     Indentures under the TIA, and (C) no consent, approval, authorization or
     other order of, or qualification with, any court or governmental body or
     agency (except such as may be required under the securities or Blue Sky
     laws of the various states) is required for the valid authorization,
     issuance, sale and delivery of the Series A Notes;

          (xi) assuming the due authorization, execution and delivery of this
     Agreement, the Indentures and the Registration Rights Agreements by each
     party thereto, the Company has validly and irrevocably submitted to the
     jurisdiction of any United States or state court in the State of New York,
     County of New York, has expressly accepted the non-exclusive jurisdiction
     of any such court and has validly and irrevocably appointed CT Corporation
     System as its authorized agent in any suit or proceeding against them
     instituted by the Initial Purchasers based on or arising under the
     Indentures, this Agreement or the Registration Rights Agreements;

          (xii) Each of Worldwide Fiber IC LLC, IC Fiber Alabama LLC, IC Fiber
     Illinois LLC, IC Fiber Iowa LLC, IC Fiber Kentucky LLC, IC Fiber Louisiana
     LLC, IC Fiber Mississippi LLC and IC Fiber Tennessee LLC (collectively, the
     "Delaware Companies") has been duly organized as a Delaware limited
     liability Company, and is validly existing and in good standing under the
     laws of Delaware; there are no restrictions on the power and capacity of
     each of the Delaware Companies to own and lease property and assets and to
     carry on business.

     The opinion of Cahill Gordon and Reindel described in Section 9(e) above
shall be rendered to you at the request of the Company and shall so state
therein. In addition, such counsel shall state that it has participated in
conferences, by person or by telephone, with officers and other representatives
of the Company, with representatives of the chartered accountants for the
Company and with representatives of the Initial Purchasers and their counsel. At
such meetings the contents of the Offering Memorandum and related matters were
discussed among the parties present at such meetings. Although such counsel will
not be passing upon and will not assume any responsibility for the accuracy,
completeness or fairness of the statements contained in the Offering Memorandum
except as set forth in paragraphs (v) and (vi) above, such counsel shall advise
the Initial Purchasers that on the basis of the foregoing (relying as to


                                       30
<PAGE>

materiality to the extent we deem appropriate upon the opinions of officers and
other authorized representatives of the Company) no facts have come to its
attention which lead it to believe that the Offering Memorandum, as of its date
or on the date of such opinion, contained or contains an untrue statement of a
material fact or omitted or omits to state a material fact required to be stated
therein or necessary to make the statements therein in light of the
circumstances under which they were made, not misleading (it being understood
that such counsel has not been asked to, and will not, comment on the financial
statements, including the notes thereto, or any other financial or statistical
data contained in or omitted from the Offering Memorandum).

     (f) You shall have received on each Closing Date an opinion (satisfactory
to you and counsel for the Initial Purchasers), dated such Closing Date, of
Farris, Vaughan, Wills & Murphy, Canadian counsel for the Company, to the effect
that:

          (i) each of the Canadian Companies is a corporation duly incorporated
     and validly existing under the laws of its jurisdiction of incorporation;
     each of the Canadian Companies has the corporate power and capacity to own
     and lease property and assets and to carry on business as described in the
     Final Canadian Memorandum;

          (ii) each of the Canadian Companies is qualified or registered to
     carry on business as an extra-provincial corporation in each jurisdiction
     in which it is required to be so qualified or registered;

          (iii) the outstanding shares of each of the Canadian Companies that is
     a subsidiary of the Company have been duly and validly authorized and
     issued and are outstanding as fully paid and non-assessable;

          (iv) the execution, issuance and sale of the Series A Notes and the
     Series B Notes have been duly authorized by all necessary corporate action
     on the part of the Company;

          (v) the execution, delivery and performance of the Operative
     Documents, and the execution, issuance and sale of the Series A Notes, by
     the Company, will not result in any violation, contravention or breach of
     the Memorandum of Association or Articles of Association of the Company;

          (vi) each of the Purchase Agreement, the Indentures, the Registration
     Rights Agreement and the Series A Notes has been duly authorized, executed
     and delivered by the Company;

          (vii) the Company has the corporate power and capacity to enter into
     each of the Operative Documents and to carry out its obligations under each
     of the Operative Documents; the execution and delivery of each of the
     Operative Documents and the consummation of the



                                       31
<PAGE>

     transactions contemplated hereby and thereby have been duly authorized by
     all necessary corporate action on the part of the Company;

          (viii) the form of certificate for the Series A Notes has been duly
     approved and adopted by the Company and does not contravene the provisions
     of the Companies Act (Nova Scotia);

          (ix) the statements contained in the Offering Memorandum under the
     caption "Material United States and Canadian Income Tax
     Considerations--Canada" and in the Final Wrap under the caption "Certain
     Canadian Federal Income Tax Considerations" fairly and accurately describe
     the principal Canadian federal income tax consequences under the Income Tax
     Act (Canada) to a purchaser described therein;

          (x) the disclosure contained in the Offering Memorandum under the
     captions "Regulation--Canada", "Risk Factors--Telecommunications
     Regulation--Canada" and "Enforceability of Civil Liabilities Against
     Foreign Persons" in each case, insofar as such disclosure describes or
     summarizes matters of Canadian law or constitutes conclusions of Canadian
     law, fairly summarizes such matters of law or conclusions of law;

          (xi) no filing, license, consent, permission, approval, authorization,
     or order of any court or governmental agency or body in Canada is required
     to be obtained by the Canadian Companies under the laws of the Provinces of
     British Columbia or Nova Scotia, or the federal laws of Canada applicable
     therein, to permit the issue, delivery and sale by the Company of the
     Notes, except such filings, licenses, consents, permissions, approvals,
     authorizations or orders that have been obtained;

          (xii) no filing, license, consent, permission, approval,
     authorization, or order of any court or governmental agency of body in
     Canada is required to be obtained by any of the Canadian Companies from the
     Canadian Radio-television and Telecommunications Commission (the "CRTC") or
     Industry Canada in connection with the Canadian Telecommunications
     Arrangement;

          (xiii) the offering, sale and delivery of the Series A Notes pursuant
     to the Final Canadian Memorandum are exempt from the prospectus
     requirements of the securities laws of the Relevant Provinces in which
     sales of Series A Notes have been effected by the Initial Purchasers and no
     prospectus is required nor are there any documents required to be filed,
     proceedings taken or approvals, permits, consents, or authorizations
     obtained under the securities laws of such provinces in respect of the
     offering, sale and delivery of the Series A Notes to the Purchasers in such


                                       32
<PAGE>

     Relevant Provinces, except for such proceedings which have been taken and
     approvals, permits, consents or authorizations which have been obtained and
     except for the filing, together with the appropriate fee, within prescribed
     time periods after the relevant Closing Date, or a report of the trade and,
     if applicable, copies of the Final Canadian Memorandum, with the securities
     commissions of the Relevant Provinces;

          (xiv) the Canadian Telecommunications Arrangement (as described in the
     Offering Memorandum and the Final Canadian Memorandum) including the
     execution, delivery and performance of the Canadian Telecommunications
     Agreements by the parties thereto will not violate or conflict with any
     provisions of the Telecommunications Act or the Ownership Regulations, any
     applicable rule, regulation, judgment, order or decree of the CRTC or
     Industry Canada;

          (xv) the statements in the Final Canadian Memorandum under the heading
     "Rights of Action" are correct insofar as such statements are, or refer to,
     statements of law or legal conclusions relating to the laws of the Relevant
     Provinces;

          (xvi) except for filings, registrations and recordings which have been
     made, no registration, filing or recording of the Indentures under the laws
     of Canada or the Provinces of British Columbia or Nova Scotia is necessary
     in order to preserve or protect the validity or enforceability of the
     Indentures or the Notes issued thereunder;

          (xvii) to the knowledge of such counsel and other than as set forth in
     the Offering Memorandum, there is no pending or threatened action or suit
     or judicial, arbitral or other administrative proceeding to which any of
     the Canadian Companies are a party, or of which any property of the
     Canadian Companies is the subject that, singly or in the aggregate, (A)
     questions the validity of any of the Operative Documents or any action
     taken or to be taken pursuant thereto, or (B) if determined adversely to
     the Canadian Companies, is reasonably likely to have a Material Adverse
     Effect;

          (xviii) the choice of law provisions set forth in Section 11 hereof,
     in the Indentures, the Registration Rights Agreements and the Notes are
     legal, valid and binding under the laws of the Province of British Columbia
     and the federal laws of Canada applicable therein, provided that such
     choice of law is bona fide (in the sense that it was not made with a view
     to avoiding the consequences of the laws of any other jurisdiction) and
     provided that such choice of law is not contrary to public policy, as that
     term is applied by the courts in the Province of British Columbia ("Public
     Policy"); such counsel knows of no Public Policy reason why the courts in
     the Province of British Columbia (a "Canadian Court") would



                                       33
<PAGE>

     not give effect to the choice of New York law as the proper law of this
     Agreement, the Indentures, the Registration Rights Agreements and the Notes
     and if the Indentures, this Agreement, the Registration Rights Agreements
     or the Notes are sought to be enforced in the Province of British Columbia
     in accordance with the laws applicable thereto as chosen by the parties,
     namely New York law, a Canadian Court would, subject to the foregoing,
     recognize the choice of New York law, and, upon appropriate evidence as to
     such law being adduced, apply such law; provided that none of the
     provisions of this Agreement, the Indentures, the Notes or the Registration
     Rights Agreements, or of applicable New York law, are contrary to Public
     Policy or foreign revenue, expropriation or penal laws; provided, however,
     that, in matters of procedure, the laws of the Province of British Columbia
     will be applied and a Canadian Court will retain discretion to decline to
     hear such action if it is contrary to Public Policy for it to do so, or if
     it is not the proper forum to hear such an action, or if concurrent
     proceedings are being brought elsewhere;

          (xix) there are no reasons, to such counsel's knowledge, under the
     laws of the Province of British Columbia or the federal laws of Canada
     applicable therein or with respect to the application of New York law by a
     Canadian Court, why enforcement of the Indentures or the Notes would be
     avoided on the grounds of Public Policy;

          (xx) The Company has the legal capacity to sue and be sued in its own
     name under the laws of the Province of British Columbia and the federal
     laws of Canada applicable therein; the Company has the power to submit, and
     has irrevocably submitted, to the non-exclusive jurisdiction of the federal
     or state courts located in the Borough of Manhattan in The City of New York
     (a "New York Court") and has validly and irrevocably appointed CT
     Corporation System as its authorized agent for the purpose described in
     Section 11 hereof; the Company has the power to submit, and has irrevocably
     submitted, to the non-exclusive jurisdiction of the New York Court and has
     validly and irrevocably appointed CT Corporation System as its authorized
     agent for the purpose described in the Indentures, the Notes and the
     Registration Rights Agreements under the laws of the Province of British
     Columbia and the federal laws of Canada applicable therein; the irrevocable
     submission of the Company to the non-exclusive jurisdiction of the New York
     Court and the waivers by it of any immunity and any objection to the venue
     of the proceeding in a New York Court herein is legal, valid and binding
     under the laws of the Province of British Columbia and the federal laws of
     Canada applicable therein, and such counsel knows of no reason why a
     Canadian Court would not give effect to such submission and waivers; the
     irrevocable submission of the Company to the non-exclusive jurisdiction of
     the New York Court and the waivers by the Company of any immunity and any
     objection to the venue of the proceeding in a New York Court in the
     Indenture, the Notes and the



                                       34
<PAGE>

     Registration Rights Agreements is legal, valid and binding under the laws
     of the Province of British Columbia and the federal laws of Canada
     applicable therein, and such counsel knows of no reason why a Canadian
     Court would not give effect to such submission and waivers;

          (xxi) service of process in the manner set forth in Section 11 hereof
     will be effective to confer valid personal jurisdiction over the Company
     under the laws of the Province of British Columbia and the federal laws of
     Canada applicable therein; service of process in the manner set forth in
     the Indentures, the Notes and the Registration Rights Agreements will be
     effective to confer valid personal jurisdiction over the Company under the
     laws of the Province of British Columbia and the federal laws of Canada
     applicable therein;

          (xxii) a Canadian Court will recognize as valid and final, and will
     enforce, any final and conclusive judgment in personam, of any New York
     Court that is not impeachable as void or voidable under the internal laws
     of the State of New York for a sum certain in respect of the enforcement of
     the obligations of the Company under this Agreement, the Indentures, the
     Notes and the Registration Rights Agreements, if (i) the court rendering
     such judgment had jurisdiction over the judgment debtor, as recognized by
     the Canadian Court (and submission by the Company in this Agreement, the
     Indentures, the Notes and the Registration Rights Agreements to the
     jurisdiction of the New York Court, will be sufficient for this purpose),
     (ii) such judgment was not obtained by fraud or in a manner contrary to
     natural justice and the enforcement thereof would not be inconsistent with
     Public Policy, or contrary to any order made by the Attorney General of
     Canada under the Foreign Extraterritorial Measures Act (Canada), (iii) the
     enforcement of such judgment does not constitute, directly or indirectly,
     the enforcement of foreign revenue, expropriatory or penal laws, (iv) the
     action to enforce such judgment is commenced within the applicable
     limitation period and (v) such counsel knows of no Public Policy reason for
     avoiding the recognition of judgments of a New York Court under this
     Agreement, the Indentures, the Notes and the Registration Rights Agreements
     under the laws of the Province of British Columbia and the federal laws of
     Canada applicable therein;

          (xxiii) no withholding tax imposed under the federal laws of Canada or
     the laws of the Province of British Columbia will be payable in respect of
     the payment or crediting of any discount, commission or fee as contemplated
     by this Agreement to an Initial Purchaser that is not resident in Canada,
     but resident in the United States or if a partnership, all the members of
     which are not resident in Canada but resident in the United States, in each
     case, for purposes of the Income Tax Act (Canada) and the Canada-U.S.
     Income Tax Convention, 1980 (a "U.S. Initial Purchaser") or on any interest
     or deemed interest on the resale of Series A Notes by a



                                       35
<PAGE>

     U.S. Initial Purchaser to U.S. residents, provided that such U.S. Initial
     Purchaser deals at arm's length with the Company and that any such
     discount, commission or fee is payable in respect of services rendered by
     such U.S. Initial Purchaser outside of Canada that are performed by such
     U.S. Initial Purchaser in the ordinary course of business carried on by it
     that includes the performance of such services for a fee and any such
     amount is reasonable in the circumstances;

          (xxiv) no goods and services tax imposed under the federal laws of
     Canada will be collectible by a U.S. Initial Purchaser in respect of the
     payment or crediting of any discount, commission or fee as contemplated by
     this Agreement to any U.S. Initial Purchaser, provided that any such
     discount, commission or fee is payable in respect of services performed by
     such Initial Purchaser wholly outside of Canada;

          (xxv) no stamp duty, registration or documentary taxes, duties or
     similar charges are payable by or on behalf of the Initial Purchasers to
     the Canadian government or to any political subdivision or taxing authority
     thereof or therein, in connection with (A) the issuance, sale and delivery
     by the Company to or for the respective accounts of the Initial Purchasers
     of the Notes or (B) the sale and delivery outside Canada by the Initial
     Purchasers of the Notes to the initial purchasers thereof in the manner
     contemplated by this Agreement;

          (xxvi) (a) Urbanlink is eligible to operate as a telecommunications
     common carrier in Canada, as defined under and in accordance with the
     Telecommunications Act (Canada) (the "Telecommunications Act") and the
     Canadian Telecommunications Common Carrier Ownership and Control
     Regulations (the "Ownership Regulations"); (b) none of the Canadian
     Companies violates the prohibition contained in subsection 16(4) of the
     Telecommunications Act against operating in Canada as a telecommunications
     common carrier when ineligible to do so; (c) control of Urbanlink is not
     exercised by any person(s) that is (are) not Canadian, in accordance with
     the meanings ascribed to the term "control" under the Telecommunications
     Act and the term "Canadian" under the Ownership Regulations; and (d) none
     of the Canadian Companies is in violation of any judgment, decree, order,
     writ, law, statute, rule or regulation rendered or enacted in Canada
     respecting telecommunications and the regulation within Canada of
     telecommunications common carriers, as defined in the Telecommunications
     Act, applicable to any of the Canadian Companies, or any interpretation or
     policy relating thereto known to such counsel to be applicable to them;

          (xxvii) after giving effect to the performance by the Company of its
     obligations under this Agreement on each Closing Date:



                                       36
<PAGE>

               (i) not less than eighty percent of the members of the board of
          directors of Urbanlink are individual Canadians, as defined under the
          Ownership Regulations;

               (ii) Canadians, as defined under the Ownership Regulations,
          beneficially own, directly or indirectly, in the aggregate and
          otherwise than by way of security only, at least 80% of the issued and
          outstanding voting shares, as defined under the Ownership Regulations,
          of Urbanlink;

               (iii) Carrier Holdco, in respect of its ownership of and control
          over Urbanlink, is a carrier holding corporation, as defined under the
          Ownership Regulations; and

               (iv) Carrier Holdco is a carrier holding corporation that is a
          qualified corporation, as defined under the Ownership Regulations;

          (xxviii) no notices, reports or other filings are required to be made
     by any of the Canadian Companies, either prior to or immediately after
     giving effect to the performance by the Company of its obligations under
     this Agreement on the relevant Closing Date, with, nor are any consents,
     registrations, applications, approvals, permits, licenses or authorizations
     required to be obtained by any of the Canadian Companies, from the CRTC or
     Industry Canada pursuant to Canadian telecommunications law in connection
     with the performance by the Company of its obligations under this Agreement
     on the relevant Closing Date;

          (xxix) to the knowledge of such counsel, and except as described in
     the Offering Memorandum, no litigation, regulatory proceeding or
     investigation is pending against the Canadian Companies in connection with
     the requirements of Canadian telecommunications law existing on the
     relevant Closing Date; and

          (xxx) with the exception of Urbanlink, no other Canadian Company
     operates in Canada as a telecommunications common carrier as that term is
     defined in the Telecommunications Act.

     Such counsel shall also confirm that at the date of the Offering Memorandum
and on each Closing Date that no facts have come to their attention in the
course of their review that lead them to believe that the Offering Memorandum
contained or contains any untrue statement of a material fact, or omitted or
omits to state a material fact necessary to make a statement therein not
misleading in light of the circumstances under which it was made, within the
meaning of the Securities Act (British Columbia).



                                       37
<PAGE>

     The opinion of Farris, Vaughan, Wills & Murphy described in this Section
9(f) above (i) shall be rendered to you at the request of the Company and shall
so state therein, (ii) as to matters of Alberta law, will rely upon the opinion
of the Company's Alberta Counsel, McLennan Ross, (ii) as to matters of Nova
Scotia law, will rely upon the opinion of Stewart McKelvey Stirling Scales (iii)
as to matters of law in the Relevant Provinces, other than British Columbia,
will rely upon counsel acceptable to you, and (iv) and as to matters of fact, to
the extent they deem proper, on certificates of responsible officers of the
Company and public officials.

     (g) You shall have received on each Closing Date an opinion (satisfactory
to you and counsel for the Initial Purchasers), dated such Closing Date, of
Beckley, Singleton, Jemison, Cobeaga & List, Chtd., special Nevada counsel for
the Company, to the effect that:

          (i) each of PFL Holdings, Inc., Worldwide Fiber (USA), Inc., Ledcor
     Communications, Inc., Worldwide Fiber IC Holdings, Inc. (fka Worldwide
     Fiberlink, Inc.), Worldwide Fiber Networks, Inc. (fka Pacific Fiber Link
     POR-SAC, Inc.), Pacific Fiber Link Sea-Por, Inc., Worldwide Fiber Network
     Services, Inc., (fka Pacific Fiber Link Mon-Alb, Inc.), WFI Fiber Inc., and
     Worldwide Fiber (F.O.T.S.), Inc. (collectively, the "Nevada Subsidiaries")
     has been duly incorporated, is validly existing as a corporation in good
     standing under the laws of the State of Nevada and has the corporate power
     and authority to carry on its business as described in the Offering
     Memorandum and to own, lease and operate its properties;

          (ii) each of the Nevada Subsidiaries is duly qualified and is in good
     standing as a foreign corporation authorized to do business in each
     jurisdiction in which the nature of its business or its ownership or
     leasing of property requires such qualification, except where the failure
     to be so qualified would not have a Material Adverse Effect;

          (iii) all of the outstanding shares of capital stock of each of the
     Nevada Subsidiaries has been duly authorized and validly issued and is
     fully paid and non-assessable, and are owned by the Company, free and clear
     of any Lien;

          (iv) the execution, delivery, and performance of this agreement and
     the other Operative Documents will not conflict with or constitute a breach
     of any of the terms or provisions of, or a default under, the Articles or
     Bylaws of each of the Nevada Subsidiaries, or any indenture, loan
     agreement, mortgage, lease or other agreement or instrument that is
     material to the Nevada Subsidiaries, taken as a whole, to which any of the
     Nevada Subsidiaries is a party or by which any of the Nevada Subsidiaries
     is bound; violate or conflict with any applicable law or any rule,
     regulation, judgment, order or decree of any court or any governmental body
     or agency having jurisdiction over any of the Nevada Subsidiaries or



                                       38
<PAGE>

     their respective property; result in the imposition or creation of (or the
     obligation to create or impose) a Lien under, any agreement or instrument
     to which any of the Nevada Subsidiaries or their respective property is
     bound; or result in the termination, suspension or revocation of any
     Authorization of any of the Nevada Subsidiaries or result in any other
     impairment of the rights of the holder of such Authorization; and

          (v) there are no known legal or governmental proceedings pending or
     threatened to which any of the Nevada Subsidiaries is or could be a party
     or to which any of their property is or could be subject, which might
     result, singly or in the aggregate, in a Material Adverse Effect.

     The opinion of Beckley, Singleton, Jemison, Cobeaga & List, Chtd. described
in Section 9(g) above shall be rendered to you at the request of the Company and
shall so state therein.

     (h) You shall have received on each Closing Date an opinion (satisfactory
to you and counsel for the Initial Purchasers), dated such Closing Date, of
Wiley Rein & Fielding, special regulatory counsel for the Company, to the effect
that the statements, with respect to federal communications law, under the
captions "Regulation--United States," and "Risk Factors--Telecommunications
Regulation--United States" in the Offering Memorandum, insofar as such
statements as a whole constitute a summary of the legal matters, documents and
proceedings referred to therein, fairly present in all material respects such
legal matters, documents and proceedings. The opinion of Wiley Rein & Fielding
described in this Section 9(h) shall be rendered to you at the request of the
Company and shall so state therein.

     (i) Bird & Bird, special regulatory counsel for the Company, shall have
furnished to you their written opinion or opinions, dated as of each Closing
Date, in form and substance satisfactory to you, to the effect that the
statements, with respect to European regulatory matters, under the captions
"Regulation--European Union" and "Risk Factors--Telecommunications Regulation"
(to the extent such section deals with European Regulatory matters) in the
Offering Memorandum insofar as such statements as a whole constitute a summary
of the legal matters, documents and proceedings referred to therein, fairly
present in all material respects such legal matters, documents and proceedings.
The opinion of Bird & Bird described in this Section 9(i) shall be rendered to
you at the request of the Company and shall so state therein.

     (j) The Initial Purchasers shall have received on each Closing Date an
opinion, dated such Closing Date, of each of Latham & Watkins and Osler, Hoskin
& Harcourt LLP, counsel for the Initial Purchasers, in form and substance
reasonably satisfactory to the Initial Purchasers.

     (k) The Initial Purchasers shall have received, at the time this Agreement
is executed and at each Closing Date, letters dated the date hereof or such
Closing Date, as the case may be, in form and substance satisfactory to the
Initial Purchasers from PricewaterhouseCoopers LLP and Deloitte & Touche LLP,
each independent public accountants,



                                       39
<PAGE>

containing the information and statements of the type ordinarily included in
accountants' "comfort letters" to the Initial Purchasers with respect to the
financial statements and certain financial information contained in the Offering
Memorandum.

     (l) The Series A Notes shall have been approved by the NASD for trading and
duly listed in PORTAL.

     (m) The Initial Purchasers shall have received counterparts, conformed as
executed, of the Indentures which shall have been entered into by the Company
and the Trustee.

     (n) The Company shall have executed the Registration Rights Agreements and
the Initial Purchasers shall have received original copies thereof, duly
executed by the Company.

     (o) The Company shall not have failed at or prior to any Closing Date to
perform or comply in any material respect with any of the agreements herein
contained and required to be performed or complied with by the Company, as the
case may be, at or prior to such Closing Date.

     (p) On or prior to the Closing Date, Ledcor Industries Limited shall have
delivered a letter addressed to the Underwriters and Sub-Underwriters, in form
and substance satisfactory to the Underwriters and their counsel, with respect
to compliance by Urbanlink and carrier Holdco with Canadian telecommunications
law.

     10. Effectiveness of Agreement and Termination.

     (a) This Agreement shall become effective upon the execution and delivery
of this Agreement by the parties hereto.

     (b) This Agreement may be terminated at any time on or prior to any Closing
Date by the Initial Purchasers by written notice to the Company if any of the
following has occurred: (i) any outbreak or escalation of hostilities or other
national or international calamity or crisis or change in economic conditions or
in the financial markets of the United States or elsewhere that, in the Initial
Purchasers' judgment, is material and adverse and, in the Initial Purchasers'
judgment, makes it impracticable to market the Series A Notes on the terms and
in the manner contemplated in the Offering Memorandum, (ii) the suspension or
material limitation of trading in securities or other instruments on the New
York Stock Exchange, The Toronto Stock Exchange, the American Stock Exchange or
the Nasdaq National Market or limitation on prices for securities or other
instruments on any such exchange or the Nasdaq National Market, (iii) the
suspension of trading of any securities of the Company on any exchange or in the
over-the-counter market, (iv) the enactment, publication, decree or other
promulgation of any federal, state, provincial or municipal statute, regulation,
rule or order of any court or other governmental authority which in your opinion
materially and adversely affects, or will materially and adversely affect, the
business, prospects, financial condition or results of operations of the Company
and its subsidiaries, taken as a whole, (v) the declaration of a banking


                                       40
<PAGE>

moratorium by either federal or New York State authorities or authorities in
Canada or any province thereof, (vi) the taking of any action by any federal,
state, provincial, municipal or local government or agency in respect of its
monetary or fiscal affairs which in your opinion has a material adverse effect
on the financial markets in the United States or Canada.

     (c) If on any Closing Date any one or more of the Initial Purchasers shall
fail or refuse to purchase the Series A Notes which it or they have agreed to
purchase hereunder on such date and the aggregate principal amount of the Series
A Notes which such defaulting Initial Purchaser or Initial Purchasers, as the
case may be, agreed but failed or refused to purchase is not more than one-tenth
of the aggregate principal amount of the Series A Notes to be purchased on such
date by all Initial Purchasers, each non-defaulting Initial Purchaser shall be
obligated severally, in the proportion which the principal amount of the Series
A Notes set forth opposite its name in Schedule A bears to the aggregate
principal amount of the Series A Notes which all the non-defaulting Initial
Purchasers, as the case may be, have agreed to purchase, or in such other
proportion as you may specify, to purchase the Series A Notes which such
defaulting Initial Purchaser or Initial Purchasers, as the case may be, agreed
but failed or refused to purchase on such date; provided that in no event shall
the aggregate principal amount of the Series A Notes which any Initial Purchaser
has agreed to purchase pursuant to Section 2 hereof be increased pursuant to
this Section 10 by an amount in excess of one-ninth of such principal amount of
the Series A Notes without the written consent of such Initial Purchaser. If on
any Closing Date any Initial Purchaser or Initial Purchasers shall fail or
refuse to purchase the Series A Notes and the aggregate principal amount of the
Series A Notes with respect to which such default occurs is more than one-tenth
of the aggregate principal amount of the Series A Notes to be purchased by all
Initial Purchasers and arrangements satisfactory to the Initial Purchasers and
the Company for purchase of such the Series A Notes are not made within 48 hours
after such default, this Agreement will terminate without liability on the part
of any non-defaulting Initial Purchaser and the Company. In any such case which
does not result in termination of this Agreement, either you or the Company
shall have the right to postpone such Closing Date, but in no event for longer
than seven days, in order that the required changes, if any, in the Offering
Memorandum or any other documents or arrangements may be effected. Any action
taken under this paragraph shall not relieve any defaulting Initial Purchaser
from liability in respect of any default of any such Initial Purchaser under
this Agreement.

     11. Jurisdiction. The Company and its subsidiaries agree that any suit,
action or proceeding against them brought by any Initial Purchaser, the
directors, officers, employees and agents of any Initial Purchaser, or by any
person who controls any Initial Purchaser, arising out of or based upon this
Agreement or the transactions contemplated hereby, may be instituted in any
State or Federal court in The City of New York, and waive any objection which
they may now or hereafter have to the laying of venue of any such proceeding,
and irrevocably submit to the non-exclusive jurisdiction of such courts in any
suit, action or proceeding. The Company has appointed CT Corporation System as
its authorized agent (the "Authorized Agent") upon whom process may be served in
any suit, action or proceeding arising out of or based upon this Agreement or
the transactions contemplated herein that may be instituted in any State or
Federal court in The City of New York, by any Initial Purchaser, the directors,
officers, employees and agents of any Initial Purchaser, or by any person, if
any, who controls any Initial Purchaser, and expressly accept the non-exclusive
jurisdiction of any such court in respect of any such suit,



                                       41
<PAGE>

action or proceeding. The Company hereby represents and warrants that the
Authorized Agent has accepted such appointment and has agreed to act as said
agent for service of process, and the Company agrees to take any and all action,
including the filing of any and all documents that may be necessary to continue
such appointment in full force and effect as aforesaid. Service of process upon
the Authorized Agent shall be deemed, in every respect, effective service of
process upon the Company. Notwithstanding the foregoing, any action arising out
of or based upon this Agreement may be instituted by any Initial Purchaser, the
directors, officers, employees and agents of any Initial Purchaser, or by any
person who controls any Initial Purchaser, in any court of competent
jurisdiction in Canada.

     12. Miscellaneous.

     (a) Notices given pursuant to any provision of this Agreement shall be
addressed as follows: (i) if to the Company, to 360networks inc., attention:
Secretary, 1500, 1066 West Hastings Street, Vancouver, British Columbia, Canada
V6E 3X1 and (ii) if to the Initial Purchasers, Donaldson, Lufkin & Jenrette
Securities Corporation, 277 Park Avenue, New York, New York 10172, Attention:
Syndicate Department, or in any case to such other address as the person to be
notified may have requested in writing.

     (b) The respective indemnities, contribution agreements, representations,
warranties and other statements of the Company, and the Initial Purchasers set
forth in or made pursuant to this Agreement shall remain operative and in full
force and effect, and will survive delivery of and payment for the Series A
Notes, regardless of (i) any investigation, or statement as to the results
thereof, made by or on behalf of the Initial Purchasers, the officers or
directors of the Initial Purchasers, any person controlling the Initial
Purchasers, the Company, the officers or directors of the Company, or any person
controlling the Company and (ii) acceptance of the Series A Notes and payment
for them hereunder. The respective agreements, covenants and indemnities set
forth in Sections 5(i) and 8 hereof shall remain in full force and effect,
regardless of any termination or cancellation of this Agreement.

     (c) If for any reason the Series A Notes are not delivered by or on behalf
of the Company as provided herein (other than as a result of any termination of
this Agreement pursuant to Section 10), the Company agrees to reimburse the
Initial Purchasers for all reasonable out-of-pocket expenses (including the fees
and disbursements of counsel) incurred by them. Notwithstanding any termination
of this Agreement, the Company shall be liable for all expenses which it has
agreed to pay pursuant to Section 5(i) hereof. The Company also agrees to
reimburse the Initial Purchasers and its officers, directors and each person, if
any, who controls such Initial Purchaser within the meaning of Section 15 of the
Act or Section 20 of the Exchange Act for any and all fees and expenses
(including without limitation the fees and expenses of counsel) incurred by them
in connection with enforcing their rights under this Agreement (including
without limitation its rights under Section 8).

     (d) Except as otherwise provided, this Agreement has been and is made
solely for the benefit of and shall be binding upon the Company, the Initial
Purchasers, the Initial Purchasers' directors and officers, any controlling
persons referred to herein, the directors of the Company and their respective
successors and assigns, all as and to the extent provided in



                                       42
<PAGE>

this Agreement, and no other person shall acquire or have any right under or by
virtue of this Agreement. The term "successors and assigns" shall not include a
purchaser of any of the Series A Notes from the Initial Purchasers merely
because of such purchase.

     (e) This Agreement shall be governed and construed in accordance with the
laws of the State of New York.

     (f) This Agreement may be signed in various counterparts which together
shall constitute one and the same instrument.





                                       43
<PAGE>



     Please confirm that the foregoing correctly sets forth the agreement
between the Company and the Initial Purchasers.

                                  Very truly yours,



                                  360networks inc.



                                  By:
                                      --------------------------------------
                                       Name:
                                       Title:




DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION
GOLDMAN, SACHS & CO.
BEAR, STEARNS & CO. INC.
CHASE SECURITIES INC.
CREDIT SUISSE FIRST BOSTON CORPORATION
MORGAN STANLEY & CO. INCORPORATED
SALOMON SMITH BARNEY INC.
RBC DOMINION SECURITIES CORPORATION
TD SECURITIES (USA) INC.

By:  DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION


By:
    ----------------------------
     Name:
     Title:



<PAGE>



<TABLE>
<CAPTION>


                                   SCHEDULE A

                               Initial Purchasers

<S>                                                                                <C>
Donaldson, Lufkin & Jenrette Securities Corporation.........................       $     240,000,000
Goldman Sachs & Co..........................................................             120,000,000
Bear, Stearns & Co. Inc.....................................................              43,200,000
Chase Securities Inc........................................................              43,200,000
Credit Suisse First Boston Corporation......................................              43,200,000
Morgan Stanley & Co. Incorporated...........................................              43,200,000
Salomon Smith Barney Inc....................................................              43,200,000
RBC Dominion Securities Corporation.........................................              12,000,000
TD Securities (USA) Inc.....................................................              12,000,000
                                                                                   -----------------
Total.......................................................................       $     600,000,000


Donaldson, Lufkin & Jenrette Securities Corporation.........................       Euro   80,000,000
Goldman Sachs & Co..........................................................              40,000,000
Bear, Stearns & Co. Inc.....................................................              14,400,000
Chase Securities Inc........................................................              14,400,000
Credit Suisse First Boston Corporation......................................              14,400,000
Morgan Stanley & Co. Incorporated...........................................              14,400,000
Salomon Smith Barney Inc....................................................              14,400,000
RBC Dominion Securities Corporation.........................................               4,000,000
TD Securities (USA) Inc.....................................................               4,000,000
                                                                                   -----------------
Total.......................................................................       Euro  200,000,000

</TABLE>


<PAGE>


                                   SCHEDULE B


                                  Subsidiaries


Ledcom Holdings Ltd.
Ledcor Communications Ltd.
Ledcor Cayer Inc.
Ledcor Engineering Inc.
Worldwide Fiber Finance Ltd.
Worldwide Fiber Networks Ltd.
Worldwide Fiber (F.O.T.S.) Ltd.
Worldwide Fiber (F.O.T.S.) No. 2, Inc.
WFI-CN Fibre Inc.
Worldwide Fiber Comuncations Ltd.
Worldwide Fiber (F.O.T.S.) No. 3, Ltd.
WFNS Holdings Ltd.
Worldwide Fiber Network Services Ltd.
Ledcor Communications, Inc.
Worldwide Fiber (USA), Inc.
Worldwide Fiber Networks, Inc.
Worldwide Fiber (F.O.T.S.), Inc.
Worldwide Fiber IC Holdings, Inc.
Worldwide Fiber IC LLC IC Fiber Alabama LLC IC Fiber Illinois LLC IC Fiber Iowa
LLC IC Fiber Kentucky LLC IC Fiber Mississippi LLC IC Fiber Tennessee LLC PFL
Holdings, Inc.
Pacific Fiber Link SEA-POR, Inc.
Worldwide Fiber Network Services, Inc.
WFI Liquidity Management Hungary Limited Liability Company
WFI Urbanlink Ltd.
WFI Fiber Inc.
Worldwide Fiber Networks (UK) Limited
360 Urbanlink Ltd.
Urbanlink Holdings Ltd.
Urbanlink Equipment Ltd.
WFI Metrobuild Ltd.
Worldwide Telecom (Bermuda) Holdings Ltd.
Worldwide Telecom Limited
Worldwide Telecom (Bermuda) Ltd.
Worldwide Telecom (Barbados) Inc.


<PAGE>

Worldwide Telecom (Denmark) ApS
Worldwide Telecom (Canada) Inc.
Worldwide Telecom (USA) Inc.
WTI Telecom (Ireland) Limited
WTI Telecom (UK) Limited
Worldwide Telecom Distribution (USA) Inc.
WTI Telecom Distribution (UK) Limited
360pacific (Bermuda) holdings ltd.
360pacific (Bermuda) ltd.
Threesixty pacific (Barbados) inc.
360pacific (USA) inc.


<PAGE>


                                   SCHEDULE C

                              Material Subsidiaries


Ledcom Holdings Ltd.
Ledcor Communications Ltd.
Ledcor Cayer Inc.
Worldwide Fiber Finance Ltd.
Worldwide Fiber Networks Ltd.
Worldwide Fiber (F.O.T.S.) Ltd.
Worldwide Fiber (F.O.T.S.) No. 2, Inc.
WFI-CN Fibre Inc.
Worldwide Fiber Comuncations Ltd.
Worldwide Fiber (F.O.T.S.) No. 3, Ltd.
WFNS Holdings Ltd.
Worldwide Fiber Network Services Ltd.
Ledcor Communications, Inc.
Worldwide Fiber (USA), Inc.
Worldwide Fiber Networks, Inc.
Worldwide Fiber (F.O.T.S.), Inc.
Worldwide Fiber IC Holdings, Inc.
Worldwide Fiber IC LLC IC Fiber Alabama LLC IC Fiber Illinois LLC IC Fiber Iowa
LLC IC Fiber Kentucky LLC IC Fiber Mississippi LLC IC Fiber Tennessee LLC
Worldwide Fiber Network Services, Inc.
WFI Liquidity Management Hungary Limited Liability Company
WFI Urbanlink Ltd.
WFI Fiber Inc.
Worldwide Fiber Networks (UK) Limited
360 Urbanlink Ltd.
Urbanlink Holdings Ltd.
Urbanlink Equipment Ltd.
WFI Metrobuild Ltd.
Worldwide Telecom (Bermuda) Holdings Ltd.
Worldwide Telecom Limited
Worldwide Telecom (Bermuda) Ltd.
Worldwide Telecom (Barbados) Inc.
Worldwide Telecom (Denmark) ApS
Worldwide Telecom (Canada) Inc.
Worldwide Telecom (USA) Inc.
WTI Telecom (Ireland) Limited


                                       45
<PAGE>

WTI Telecom (UK) Limited
Worldwide Telecom Distribution (USA) Inc.
WTI Telecom Distribution (UK) Limited
Threesixty pacific (Barbados) inc.



<PAGE>


                                   SCHEDULE D

                              Canadian Subsidiaries


Ledcom Holdings Ltd.
Ledcor Communications Ltd.
Ledcor Cayer Inc.
Ledcor Engineering Inc.
Worldwide Fiber Finance Ltd.
Worldwide Fiber Networks Ltd.
Worldwide Fiber (F.O.T.S.) Ltd.
Worldwide Fiber (F.O.T.S.) No. 2, Inc.
WFI-CN Fibre Inc.
Worldwide Fiber Communications Ltd.
Worldwide Fiber (F.O.T.S.) No. 3, Ltd.
WFNS Holdings Ltd.
Worldwide Fiber Network Services Ltd.
WFI Urbanlink Ltd.
360 Urbanlink Ltd.
Urbanlink Holdings Ltd.
Urbanlink Equipment Ltd.
WFI Metrobuild Ltd.
Worldwide Telecom (Canada) Inc.

<PAGE>


                                    EXHIBIT A

                     Form of REGISTRATION RIGHTS AGREEMENTS







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