Document:

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                                                                   EXHIBIT 10.30

                                                                  EXECUTION COPY

                                 LOAN AGREEMENT

                          dated as of January 22, 2001

                                  by and among

                        LEAP WIRELESS INTERNATIONAL, INC.
                                   as Borrower

                             QUALCOMM INCORPORATED,
                                    as Lender

                         THE OTHER LENDERS PARTY HERETO

                                 CITIBANK, N.A.,
                             as Administrative Agent

                                       and

                                 CITIBANK, N.A.,
                               as Collateral Agent

                       MILBANK, TWEED, HADLEY & MCCLOY LLP

<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                      Page
                                                                                      ----
<S>      <C>                                                                          <C>
ARTICLE 1. DEFINITIONS ..............................................................   1
         1.1        DEFINED TERMS ...................................................   1
         1.2        OTHER INTERPRETIVE PROVISIONS ...................................  15
         1.3        ACCOUNTING TERMS; GAAP ..........................................  16

ARTICLE 2. THE TERM LOAN FACILITY ...................................................  16
         2.1        FACILITY ........................................................  16
         2.2        LOANS AND BORROWINGS ............................................  17
         2.3        REQUESTS FOR BORROWINGS .........................................  17
         2.4        MAKING OF LOANS .................................................  19
         2.5        TERMINATION AND REDUCTION OF COMMITMENTS ........................  21
         2.6        REPAYMENT OF LOANS ..............................................  21
         2.7        EVIDENCE OF DEBT ................................................  21
         2.8        INTEREST ........................................................  22
         2.9        ALTERNATE RATE OF INTEREST ......................................  23
         2.10       VOLUNTARY PREPAYMENTS ...........................................  23
         2.11       MANDATORY PREPAYMENTS ...........................................  24
         2.12       SYNDICATIONS ....................................................  25

ARTICLE 3. FEES .....................................................................  26
         3.1        FEES ............................................................  26

ARTICLE 4. YIELD PROTECTION; PAYMENTS; TAXES; ETC ...................................  26
         4.1        INCREASED COSTS .................................................  26
         4.2        BREAK FUNDING PAYMENTS ..........................................  27
         4.3        ILLEGALITY ......................................................  27
         4.4        TAXES ...........................................................  27
         4.5        PAYMENTS GENERALLY; PRO RATA TREATMENT; SHARING OF SET-OFFS .....  29

ARTICLE 5. CONDITIONS PRECEDENT TO LOANS ............................................  30
         5.1        CONDITIONS PRECEDENT TO THE INITIAL LOANS .......................  30
         5.2        FURTHER CONDITIONS PRECEDENT TO LOANS ...........................  33

ARTICLE 6. REPRESENTATIONS, WARRANTIES AND AGREEMENTS ...............................  34
         6.1        ORGANIZATION; POWERS ............................................  34
         6.2        CORPORATE POWER AND AUTHORITY ...................................  34
         6.3        APPROVALS .......................................................  35
         6.4        VALID AND BINDING OBLIGATION ....................................  35
         6.5        NO VIOLATION ....................................................  35
         6.6        FINANCIAL STATEMENTS ............................................  35
         6.7        LITIGATION; LABOR DISPUTES ......................................  36
         6.8        TAX RETURNS AND PAYMENTS ........................................  36
         6.9        COMPLIANCE WITH APPLICABLE LAW ..................................  36
         6.10       INVESTMENT COMPANY ACT ..........................................  36
         6.11       PUHCA ...........................................................  36
         6.12       LIENS ...........................................................  36
         6.13       TITLE ...........................................................  37
         6.14       PROPERTY RIGHTS .................................................  37
</TABLE>

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<TABLE>
<S>      <C>                                                                          <C>
         6.15       RELEVANT DOCUMENTS ..............................................  37
         6.16       ENVIRONMENTAL MATTERS ...........................................  37
         6.17       TRUE AND COMPLETE DISCLOSURE ....................................  38
         6.18       USE OF PROCEEDS .................................................  38
         6.19       NO SUBORDINATION ................................................  38
         6.20       ERISA ...........................................................  38
         6.21       INDEBTEDNESS ....................................................  39
         6.22       USURY EXEMPTION .................................................  39

ARTICLE 7. COVENANTS ................................................................  39
         7.1        COVENANTS OF BORROWER UNDER THE INDENTURE .......................  39
         7.2        INFORMATION COVENANTS ...........................................  39
         7.3        BOOKS AND RECORDS; INSPECTION RIGHTS ............................  40
         7.4        USE OF PROCEEDS .................................................  40
         7.5        COMPLIANCE WITH TERMS OF THE ADV AND THE ORDER ..................  40
         7.6        TRANSFER OF LICENSES ............................................  41
         7.7        WAIVER OF STAY, EXTENSION OR USURY LAWS .........................  42
         7.8        USE OF LOANS ....................................................  42

ARTICLE 8. EVENTS OF DEFAULT ........................................................  43
         8.1        EVENTS OF DEFAULT ...............................................  43
         8.2        REMEDIES ........................................................  45
         8.3        EXERCISE OF REMEDIES ............................................  46

ARTICLE 9. AGENTS ...................................................................  46
         9.1        APPOINTMENT .....................................................  46
         9.2        RIGHTS AND POWERS AS LENDER .....................................  46
         9.3        DELEGATION OF DUTIES ............................................  46
         9.4        LIABILITY .......................................................  46
         9.5        RELIANCE ........................................................  47
         9.6        NON-RELIANCE BY LENDERS .........................................  47
         9.7        INDEMNIFICATION .................................................  48
         9.8        SUCCESSOR .......................................................  48

ARTICLE 10. MISCELLANEOUS ...........................................................  49
         10.1       NOTICES .........................................................  49
         10.2       WAIVERS; AMENDMENTS .............................................  49
         10.3       EXPENSES, INDEMNITY, DAMAGE WAIVER ..............................  50
         10.4       SUCCESSORS AND ASSIGNS; PARTICIPATIONS ..........................  51
         10.5       SURVIVAL ........................................................  53
         10.6       COUNTERPARTS; INTEGRATION; EFFECTIVENESS ........................  54
         10.7       RIGHT OF SET-OFF ................................................  54
         10.8       SEVERABILITY ....................................................  54
         10.9       GOVERNING LAW; JURISDICTION; CONSENT TO SERVICE OF PROCESS ......  54
         10.10      WAIVER OF JURY TRIAL ............................................  55
         10.11      HEADINGS ........................................................  55
         10.12      INTEREST RATE LIMITATION ........................................  55
         10.13      REINSTATEMENT ...................................................  56
         10.14      FURTHER ASSURANCES ..............................................  56
</TABLE>

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                                    EXHIBITS

Exhibit A               Form of Borrowing Request

Exhibit B               Form of ADV Assignment and Acceptance

Exhibit C               Form of ADV Notice

Exhibit D               Form of Assignment and Acceptance

Exhibit E               Form of Administrative Questionnaire

Exhibit F               Form of Promissory Note

                                    SCHEDULES

Schedule 2.1            Commitments

Schedule 6.7            Litigation

Schedule 6.16           Environmental Matters

Schedule 6.21           Indebtedness

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<PAGE>   5

                                 LOAN AGREEMENT

                This LOAN AGREEMENT (this "Agreement"), dated as of January 22,
2001, by and among LEAP WIRELESS INTERNATIONAL, INC., a corporation organized
under the laws of Delaware ("Borrower"), QUALCOMM INCORPORATED, a corporation
organized under the laws of Delaware ("QUALCOMM") and the other lenders from
time to time party hereto (each a "Lender" and together with QUALCOMM,
"Lenders"), CITIBANK, N.A., in its capacity as administrative agent for Lenders
(the "Administrative Agent"), and CITIBANK, N.A., in its capacity as collateral
agent for Lenders (the "Collateral Agent").

                               W I T N E S S E T H

                A. Borrower desires to obtain from Lenders a term loan facility
in the aggregate principal amount of up to One Hundred Twenty Five Million Two
Hundred Seventy Three Thousand and Eight Hundred and Seventy Eight Dollars
($125,273,878) that will consist of ADV Loans or, at the sole option of
QUALCOMM, Cash Loans in the aggregate principal amount not exceeding the Total
Commitment, for the purposes of financing Borrower's proposed acquisition of
wireless spectrum in the Federal Communications Commission ("FCC") C and F block
broadband PCS (Personal Communications Services) license auction No. 35 ("FCC
Auction No. 35") conducted or to be conducted pursuant to the Auction No. 35
Public Notice, as more particularly described below; and

                B. Lenders are willing to supply such financing subject to the
terms and conditions and in reliance on the representations and warranties set
forth in this Agreement and the other documents executed in connection herewith;

                NOW, THEREFORE, in consideration of the foregoing premises and
the mutual promises and covenants set forth below, Borrower, Lenders, the
Administrative Agent and the Collateral Agent agree as follows:

ARTICLE 1. DEFINITIONS

                1.1 Defined Terms. As used in this Agreement, the following
terms have the respective meanings set forth below or set forth in the
referenced provision following such term:

                "Administrative Agent" shall have the meaning provided in the
first paragraph of this Agreement.

                "Administrative Agent's Fee Letter" shall mean that letter
agreement dated the date hereof by and between Borrower and the Administrative
Agent regarding payment of fees in connection with the Administrative Agent's
duties in its capacity as the Administrative Agent.

                "Administrative Questionnaire" shall mean an administrative
questionnaire in the form of Exhibit E.

<PAGE>   6

                "ADV" shall mean a transferable Auction Discount Voucher in the
original amount of $125,273,878 issued to QUALCOMM pursuant to the Order.

                "ADV Assignment and Acceptance" shall mean the ADV Assignment
and Acceptance in the form of Exhibit B to be executed by QUALCOMM and Borrower
on or before the date of the requested Borrowing of an ADV Loan.

                "ADV Loans" shall mean one or more assignments of any portion of
the ADV from QUALCOMM to Borrower pursuant to an ADV Assignment and Acceptance,
subject, in each case, to the terms and conditions of the Order and this
Agreement. For all purposes of this Agreement, the outstanding principal amount
of each ADV Loan shall be denominated in Dollars and shall be equal to the
amount designated by Borrower in its Borrowing Request in respect of such ADV
Loans which shall not exceed the Net Winning Bid(s) for the License(s) acquired
(in whole or in part) with the proceeds of such ADV Loan. All amounts of
interest, fees and any other amounts payable with respect to the outstanding
principal amount of such ADV Loan shall be calculated on the basis of such
principal amount.

                "ADV Notice" shall have the meaning set forth in Section 2.3(d).

                "Affiliate" shall mean, with respect to a specified Person, any
other Person which directly or indirectly controls, or is under common control
with, such Person. As used in this definition, "control" (including, with its
correlative meanings, "controlled by" and "under common control with") shall
mean possession, directly or indirectly, of power to direct or cause the
direction of management or policies (whether through ownership of securities or
partnership or other ownership interests, by contract or otherwise), provided
that, in any event, any Person which owns directly or indirectly 15% or more of
the securities having ordinary voting power for the election of directors or
other governing body of a corporation or 15% or more of the partnership or other
ownership interests of any other Person will be deemed to control such
corporation or other Person. Notwithstanding the foregoing no individual shall
be deemed to be an Affiliate of a Person solely by reason of his or her being a
director, committee member, officer or employee of such Person.

                "Agents" shall mean the Administrative Agent and the Collateral
Agent.

                "Agreement" shall mean this Loan Agreement, as the same may be
from time to time further modified, amended, supplemented or restated.

                "Applicable Law" shall mean any constitution, statute, law,
rule, regulation, ordinance, judgment, order, decree, permit, or any published
directive, guideline, requirement or other governmental restriction which has
the force of law, or any determination by, or interpretation of any of the
foregoing by, any judicial authority, binding on a given Person whether in
effect as of the date hereof or as of any date thereafter, including all
applicable FCC regulations, orders, rules, requirements, guidelines, bidding
conditions or procedures and Environmental Laws.

                "Applicable Margin" shall mean for Loans for any period, the
applicable rates per annum set forth under the caption "Applicable Margin" below
opposite the option elected by Borrower pursuant to Section 2.3(b). For purposes
of determining the Applicable Margin

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pursuant to the chart below, the "Value of the Total License Bids" shall
(without duplication) (a) include the aggregate Total License Bids for all
Licenses for which Borrower is the winning bidder in FCC Auction No. 35, but
following the FCC's grant of such Licenses to Borrower, only those that are in
the process of being transferred to a License Subsidiary pursuant to Section
7.6(a); provided that, for purposes of this clause (a), Borrower has fully
complied with Section 7.6(a) and that, to the extent such License is to be
included in such aggregate, Borrower's application to acquire such License shall
not have been denied by the FCC and not more than forty-five (45) days shall
have elapsed since such License was granted to Borrower, (b) include the Total
License Bids for all Licenses held by License Subsidiaries; and (c) exclude each
Total License Bid in respect of each License held by a License Subsidiary whose
Capital Stock is subject to a Lien described in Section 7.6(d) and exclude each
License transferred by a License Subsidiary in accordance with Section 7.6(b).

<TABLE>
<CAPTION>
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        VALUE OF THE TOTAL
        LICENSE BIDS/TOTAL                                                                APPLICABLE
     EXPOSURES UNDER FACILITY                     COLLATERAL OPTION                         MARGIN
-------------------------------------------------------------------------------------------------------
<S>  <C>                      <C>                                                         <C>
 1     100%-150%              All Capital Stock of License Subsidiaries and LEAP Mexico      6.5%
-------------------------------------------------------------------------------------------------------
 2     Greater than 150%      All Capital Stock of License Subsidiaries and LEAP Mexico      4.5%
-------------------------------------------------------------------------------------------------------
 3     100% - 150%            All Capital Stock of License Subsidiaries                      9.5%
-------------------------------------------------------------------------------------------------------
 4     Greater than 150%      All Capital Stock of License Subsidiaries                      7.5%
-------------------------------------------------------------------------------------------------------
 5     Less than 100%         All Capital Stock of License Subsidiaries                     12.5%
-------------------------------------------------------------------------------------------------------
</TABLE>

                "Assignment Agreement" shall mean an Assignment and Acceptance
in the form of Exhibit D (appropriately completed).

                "Auction No. 35 Public Notice" shall mean "C and F Block
Broadband PCS Spectrum Auction Scheduled for December 12, 2000: Notice and
Filing Requirements for 422 Licenses in the C and F Block Broadband PCS Spectrum
Auction," Public Notice, DA 00-2259 (FCC; released October 5, 2000).

                "Authorized Officer" shall mean, with respect to any Person, the
Managing Director, the Chief Executive Officer, the President, the Chief
Operating Officer, the Vice President, the Chief Financial Officer, the
Assistant Vice President, the Treasurer, the Assistant Treasurer or equivalent
officers of such Person and with respect to Borrower, shall include any officer
or representative holding any of the foregoing positions (or their equivalent)
whose name appears on a certificate of incumbency delivered concurrently with
the execution of this Agreement, as such certificate of incumbency may be
amended, supplemented or replaced from time to time to identify names of the
individuals then holding such offices or the names of such representatives and
the capacity in which they are acting.

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<PAGE>   8

                "Availability Period" shall mean the period from the date on
which all conditions precedent to the initial Loan in Article 5 have been
satisfied (or waived by the Administrative Agent and each Lender) through the
earliest to occur of (a) the issuance of all Licenses(s) for which Borrower is
the high bidder pursuant to FCC Auction No. 35; (b) the termination of FCC
Auction No. 35, in the event Borrower is not the high bidder for any License(s);
(c) the date on which Borrower voluntarily withdraws from FCC Auction No. 35;
and (d) the denial by the FCC (pursuant to an order which is not subject to
reversal, pursuant to a timely filed administrative appeal, or for which any
administrative appeal period has expired without the filing of such an appeal)
of the issuance of all License(s) for which Borrower is the high bidder pursuant
to FCC Auction No. 35.

                "Borrower" shall have the meaning provided in the first
paragraph of this Agreement.

                "Borrower Obligations" shall mean all obligations of Borrower
now existing or hereinafter arising, direct or indirect, absolute or contingent,
due or to become due, under this Agreement or any other Loan Document,
including, without duplication, (i) payment of the principal of and interest on
the Loans, (ii) payment of all fees, expenses, indemnities and other amounts
under the Loan Documents, and (iii) all other obligations, duties and
liabilities of Borrower under or in connection with the Loan Documents (whether
or not evidenced by any note, bond or other instrument and whether or not for
the payment of money).

                "Borrowing" shall mean the incurrence by Borrower of Loans on
the same date.

                "Borrowing Request" shall mean a request by Borrower for a
Borrowing in accordance with Section 2.3.

                "Business Day" shall mean any day other than a Saturday, Sunday
or other day on which commercial banks are authorized or required by law to
close in New York City; provided that the term "Business Day" shall also exclude
any day on which banks are not open for dealings in Dollar deposits in the
London interbank market.

                "Business Plan" shall mean, for any fiscal year, the business
plan of Cricket Communications and its Subsidiaries for such fiscal year, in the
form required to be delivered under the Vendor Credit Agreements.

                "Capital Lease" as applied to any Person, shall mean any lease
of any property (whether real, personal or mixed) by that Person as lessee
which, in conformity with GAAP, is accounted for as a capital lease on the
balance sheet of such Person.

                "Capital Stock" of any Person shall mean any and all shares,
interests, rights to purchase, warrants, options, participations or other
equivalents of or interests in (however designated) the common or preferred
equity or preference share capital of such Person, including partnership
interests.

                "Capitalized Lease Obligations" shall mean the discounted
present value of the rental obligations under Capital Leases.

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<PAGE>   9

                "Cash Loans" shall mean one or more cash loans denominated in
Dollars made to Borrower by Lenders, subject to the terms and conditions of this
Agreement.

                "Charter Documents" shall mean, with respect to any Person, the
articles of incorporation, by-laws, partnership agreements or such other
documents or instruments which are required to be registered or lodged in the
place of incorporation or organization of such Person and (regardless of such
requisite registration or lodging) which establish the legal existence of such
Person.

                "Closing Date" shall mean the date upon which the first Loan is
made pursuant to this Agreement in response to a Borrowing Request.

                "Code" shall mean the Internal Revenue Code of 1986, as amended.

                "Collateral Agent" shall have the meaning set forth in the first
paragraph of this Agreement.

                "Collateral Agent's Fee Letter" shall mean that letter agreement
dated the date hereof by and between Borrower and the Collateral Agent regarding
payment of fees in connection with the Collateral Agent's duties in its capacity
as the Collateral Agent.

                "Commitment" shall mean, with respect to any Lender, the amount
set forth on Schedule 2.1 as such Lender's "Commitment", as such amount may be
adjusted from time to time pursuant to the terms of this Agreement, plus its
ratable share of the Cash Loans to finance the Commitment Fee and interest
capitalized in accordance with Section 2.8(c).

                "Commitment Fee" shall have the meaning set forth in Section
3.1(a).

                "Commitment Letter" shall mean the commitment letter dated as of
December 21, 2000 from QUALCOMM to Borrower.

                "Cricket Communications" shall mean Cricket Communications Inc.,
a Delaware corporation.

                "Currency Agreement" shall mean any foreign exchange contract,
currency swap agreement or other similar agreement or arrangement.

                "Default" shall mean any event, act or condition which, with the
giving of notice, lapse of time, fulfillment of any condition or any combination
thereof, would become an Event of Default.

                "Dollars" or "$" shall mean the lawful currency of the United
States.

                "Effective Date" shall mean the date of this Agreement.

                "Eligible Assignee" shall mean (i) a commercial bank organized
under the laws of the United States, or any state thereof, (ii) a Person that is
primarily engaged in the business of banking and that is a Lender or a
Subsidiary or Affiliate of a Lender; (iii) a finance company,

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<PAGE>   10

financial institution, fund or any other Person that has a combined capital and
surplus of at least two hundred million Dollars ($200,000,000) and is approved
in writing by the Administrative Agent (which approval shall not be unreasonably
withheld); or (iv) QUALCOMM or any of its Subsidiaries; provided, however, that
none of Borrower or its respective Affiliates (other than Affiliates that are
commercial banks, finance companies, financial institutions or funds that would
otherwise qualify hereunder) shall qualify as an Eligible Assignee.

                "Environmental Claims" shall mean, with respect to any Person,
any notice, claim, administrative, regulatory or judicial action, suit,
judgment, demand or other communication (whether written or oral) by any other
Person alleging or asserting such Person's liability (contingent or otherwise)
for investigatory costs, cleanup or environmental remediation costs,
governmental response costs, damages to natural resources or other property of
such Person, personal injuries, fines or penalties arising out of, based on or
directly or indirectly resulting from (i) the generation, presence, use,
handling, transportation, storage, treatment, disposal or release or threatened
release into the environment of any Hazardous Material at any location, whether
or not owned by such Person, (ii) exposure to any Hazardous Materials, (iii) any
fact, circumstance, condition or occurrence forming the basis of any violation,
or alleged violation, of any Environmental Law, or (iv) any contract, agreement
or other consensual arrangement pursuant to which liability is assumed or
imposed with respect to any of the foregoing. The term "Environmental Claim"
shall include, (a) any and all claims by Governmental Authorities for
enforcement, cleanup, removal, response, remedial or other actions or damages
pursuant to any applicable Environmental Law and (b) any and all claims by any
third party seeking damages, contribution, indemnification, cost recovery,
compensation or injunctive relief resulting from Hazardous Materials or arising
from alleged injury or threat of injury to health, safety or the environment.

                "Environmental Law" shall mean any statute, law, rule,
regulation, code, ordinance, order, decree, judgment, injunction, notice, policy
having the force of law, or binding agreement issued, promulgated or entered
into by any Governmental Authority, relating in any way to the environment,
preservation or reclamation of natural resources, the management, release or
threatened release of any Hazardous Material or to health and safety matters.

                "Ericsson Credit Agreement" shall mean the Credit Agreement,
dated as of October 20, 2000, among Cricket Communications, Holdings, the
lenders party thereto and Ericsson Credit AB.

                "ERISA" shall mean the Employee Retirement Income Security Act
of 1974, as amended from time to time.

                "ERISA Affiliate" shall mean any trade or business (whether or
not incorporated) that, together with Borrower, is treated as a single employer
under Section 414(b) or (c) of the Code, or, solely for purposes of Section 302
of ERISA and Section 412 of the Code, is treated as a single employer under
Section 414 of the Code.

                "ERISA Event" shall mean (a) any "reportable event", as defined
in Section 4043 of ERISA or the regulations issued thereunder with respect to a
Plan (other than an event for which the 30-day notice period is waived); (b) the
existence with respect to any Plan of an

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<PAGE>   11

"accumulated funding deficiency" (as defined in Section 412 of the Code or
Section 302 of ERISA), whether or not waived; (c) the filing pursuant to Section
412(d) of the Code or Section 303(d) of ERISA of an application for a waiver of
the minimum funding standard with respect to any Plan; (d) the incurrence by
Borrower or any of its ERISA Affiliates of any liability under Title IV of ERISA
with respect to the termination of any Plan; (e) the receipt by Borrower or any
ERISA Affiliate from the PBGC or a plan administrator of any notice relating to
an intention to terminate any Plan or Plans or to appoint a trustee to
administer any Plan; (f) the incurrence by Borrower or any of its ERISA
Affiliates of any liability with respect to the withdrawal or partial withdrawal
from any Plan or Multiemployer Plan; or (g) the receipt by Borrower or any ERISA
Affiliate of any notice, or the receipt by any Multiemployer Plan from Borrower
or any ERISA Affiliate of any notice, concerning the imposition of Withdrawal
Liability against Borrower or any ERISA Affiliate or a determination that a
Multiemployer Plan is, or is expected to be, insolvent or in reorganization,
within the meaning of Title IV of ERISA.

                "Event of Default" shall have the meaning set forth in Section
8.1.

                "Exchange Act" shall mean the Securities Exchange Act of 1934,
as amended, or any successor statute or statutes thereto.

                "Excluded Taxes" shall mean, with respect to the Administrative
Agent, the Collateral Agent, any Lender or any other recipient of any payment to
be made by or on account of any obligation of Borrower hereunder, (a) income or
franchise Taxes imposed on (or measured by) its net income (or profits or
receipts to the extent such taxes are imposed in lieu of a net income tax) by
any Governmental Authority, and (b) any branch profits taxes imposed by any
Governmental Authority.

                "Exposure" shall mean, with respect to any Lender at any time,
the sum of the outstanding principal amount of such Lender's Loans, if any, at
such time.

                "Facility" shall mean the extension of credit to Borrower by
Lenders as set forth in Section 2.1.

                "FCC" shall have the meaning provided in the preamble to this
Agreement.

                "FCC Auction No. 35" shall have the meaning provided in the
preamble to this Agreement.

                "FCC Letters" shall mean (i) a letter issued by the FCC to
QUALCOMM's counsel, dated June 22, 2000, and (ii) a letter issued by the FCC to
QUALCOMM's counsel, dated December 22, 2000, a copy of each of which has been
furnished to Borrower.

                "FCC Payment Date" shall have the meaning set forth in Section
2.3(a)(iii).

                "Federal Funds Rate" shall mean, for any day, the rate per annum
equal to the weighted average of the interest rates on overnight Federal funds
transactions with members of the Federal Reserve System arranged by Federal
funds brokers, as published for such day (or, if such day is not a Business Day,
for the next preceding Business Day) by the Federal Reserve Bank of New York,
or, if such rate is not so published for any day which is a Business Day, the

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<PAGE>   12

average of the quotations for such day on such transactions received by the
Administrative Agent from three Federal funds brokers of recognized standing
selected by the Administrative Agent.

                "GAAP" shall mean generally accepted accounting principles in
the United States of America.

                "Good Faith Contest" shall mean, with respect to the payment of
Taxes or any other claims or liabilities by any Person, the satisfaction of each
of the following conditions: (i) the validity or amount thereof is being
diligently contested in good faith by such Person by appropriate proceedings
timely instituted, (ii) during the period of such contest, the enforcement of
any contested item is effectively stayed, (iii) during the period of such
contest, such Person maintains sufficient reserves for the payment of such Taxes
or other claims or liabilities if determined adversely, and (iv) such contest
and any resultant failure to pay or discharge the claimed or assessed amount has
not resulted in, and would not reasonably be expected to result in a Material
Adverse Effect.

                "Governmental Approvals" shall mean any authorization, consent,
approval, license, ruling, permit, concession, certification, exemption, filing,
variance, order, judgment, decree, publication, notice to, declaration of or
with or registration by or with any Governmental Authority.

                "Governmental Authority" shall mean the government of the United
States or any other nation or any political subdivision thereof, whether state
or local, and any agency, authority, instrumentality, regulatory body, court,
central bank or other entity exercising executive, legislative, judicial,
taxing, regulatory or administrative powers or functions of or pertaining to
government.

                "Hazardous Materials" shall mean (i) all explosive or
radioactive substances or wastes and all hazardous or toxic substances, wastes
or other pollutants, including petroleum or petroleum distillates, asbestos or
asbestos containing materials, polychlorinated biphenyls, radon gas, infectious
or medical wastes, (ii) any other chemicals, materials or substances defined as
or included in the definition "hazardous substances," "hazardous wastes,"
"hazardous materials," "extremely hazardous wastes," "restricted hazardous
wastes," "toxic substances," "toxic pollutants," "contaminants" or "pollutants,"
or words of similar import, under any applicable Environmental Law and (iii) any
other chemical, material, substance or waste of any nature regulated pursuant to
any Environmental Law by reason of its hazardous nature.

                "Holdings" shall mean Cricket Communications Holdings Inc., a
Delaware corporation.

                "Indebtedness" shall mean, with respect to any Person at any
date of determination (without duplication):

                (a) all indebtedness of such Person for borrowed money;

                (b) all obligations of such Person evidenced by bonds,
debentures, notes or other similar instruments;

                                       8
<PAGE>   13

                (c) all obligations (including reimbursement obligations) of
such Person in respect of letters of credit or other similar instruments
(including reimbursement obligations with respect thereto, but excluding
obligations with respect to letters of credit (including trade letters of
credit) securing obligations (other than obligations described in (a) or (b)
above or (e), (f) or (g) below) entered into in the ordinary course of business
of such Person to the extent such letters of credit are not drawn upon or, if
drawn upon, to the extent such drawing is reimbursed no later than the third
Business Day following receipt by such Person of a demand for reimbursement);

                (d) all obligations of such Person to pay the deferred and
unpaid purchase price of property or services, which purchase price is due more
than six months after the date of placing such property in service or taking
delivery and title thereto or the completion of such services, except Trade
Payables;

                (e) all Capitalized Lease Obligations;

                (f) all Indebtedness of other Persons secured by a Lien on any
asset of such Person, whether or not such Indebtedness is assumed by such
Person; provided that the amount of such Indebtedness shall be the lesser of (i)
the fair market value of such asset at such date of determination and (ii) the
amount of such Indebtedness;

                (g) all Indebtedness of other Persons guaranteed by such Person
to the extent such Indebtedness is guaranteed by such Person; and

                (h) to the extent not otherwise included in this definition, any
net payment obligations under Currency Agreements and Interest Rate Agreements.

                The amount of Indebtedness of any Person at any date shall be
the outstanding balance at such date (or in the case of a revolving credit or
other similar facility, the total amount of funds outstanding and/or available
on the date of determination) of all unconditional obligations as described
above and, with respect to contingent obligations, the maximum liability upon
the occurrence of the contingency giving rise to the obligation; provided (1)
that the amount outstanding at any time of any Indebtedness issued with original
issue discount is the face amount of such Indebtedness less the unamortized
portion of the original issue discount of such Indebtedness at the time of its
issuance as determined in conformity with GAAP, (2) money borrowed at the time
of the incurrence of any Indebtedness in order to pre-fund the payment of
interest on such Indebtedness shall be deemed not to be "Indebtedness" so long
as such money is held to secure the payment of such interest, (3) contingent
obligations arising in connection with the acquisition of any business or
Person, based on the future performance of such business or Person, shall not
constitute Indebtedness except to the extent such obligations are not paid
within seven (7) Business Days of the date such contingency is resolved under
GAAP and are recorded as a liability on the books of the Company and its
Subsidiaries and (4) liabilities for federal, state, local or other taxes shall
not constitute Indebtedness.

                "Indemnified Taxes" shall mean Taxes other than (a) Excluded
Taxes and (b) any other Taxes excluded from the definition of Indemnified Taxes
pursuant to Section 4.4(e).

                                       9
<PAGE>   14

                "Indemnitee" shall have the meaning set forth in Section
10.3(b).

                "Indenture" shall mean the Indenture dated as of February 23,
2000 among Borrower (as Issuer), Holdings (as Guarantor) and State Street Bank
and Trust Company (as Trustee), and all supplements thereto.

                "Initial Commitment" shall mean the obligation of the Lenders to
make Loans to Borrower under this Agreement in an aggregate principal amount up
to the sum of One Hundred Twenty Five Million Two Hundred Seventy Three Thousand
and Eight Hundred and Seventy Eight Dollars ($125,273,878) plus the Commitment
Fee and interest capitalized in accordance with Section 2.8(c).

                "Interest Commencement Date" shall mean, in respect of any Cash
Loan, the date such Cash Loan is made pursuant to Section 2.4(c) and, in the
case of any ADV Loan, the date that the FCC, in accordance with the terms of the
ADV and an ADV Assignment and Acceptance executed by Borrower, applies the
principal amount of such ADV Loan against the Net Winning Bid for a License
issued to Borrower.

                "Interest Period" shall mean, with respect to each Loan, (i) the
period from (and including) the first Business Day in the month of April to (but
excluding) the first Business Day in the month of October of the same calendar
year or (ii) the period from (and including) the first Business Day in the month
of October to (but excluding) the first Business Day in the month of April of
the next calendar year.

                "Interest Rate Agreement" shall mean any interest rate
protection agreement, interest rate future agreement, interest rate option
agreement, interest rate swap agreement, interest rate cap agreement, interest
rate collar agreement, interest rate hedge agreement, option or future contract
or other similar agreement or arrangement.

                "Investment Company Act of 1940" shall mean the U.S. Investment
Company Act of 1940, and the rules and regulations promulgated thereunder.

                "LEAP Mexico" shall mean LEAP PCS Mexico, Inc, a California
corporation.

                "Lenders" shall mean each lender party hereto and any other
Person that shall have become a party hereto pursuant to an Assignment
Agreement, other than any such Person that ceases to be a party hereto pursuant
to an Assignment Agreement.

                "LIBOR Rate" shall mean, for any Interest Period for each Loan,
regardless of the actual length of the period between the date of the Borrowing
for such Loan and the end of the Interest Period during which such Loan was
made, the rate per annum (rounded upward, if necessary, to the nearest whole
multiple of 1/16 of 1% per annum) appearing on Telerate Page 3750 as of 11:00
A.M. (London time) on the date (as to any Interest Period, the "Determination
Date") that is two Business Days before the first Business Day of such Interest
Period, as LIBOR for a six-month period. In the event that Telerate Page 3750
shall cease to report such LIBOR or, in the reasonable judgment of the Required
Lenders, shall cease to accurately reflect such LIBOR, then the "LIBOR Rate"
with respect to such Interest Period for such Loan shall be the rate per annum
equal to the rate per annum at which deposits in Dollars are offered by the

                                       10
<PAGE>   15

principal office of the Administrative Agent in London, England to leading banks
in the London interbank market at 11:00 A.M. (London time) on the Determination
Date for a period equal to such Interest Period. The LIBOR Rate for any Interest
Period for each Loan shall be determined by the Administrative Agent on the
basis of the applicable rate appearing on Telerate Page 3750 as aforesaid (or
the applicable rate furnished by the Administrative Agent) on the Determination
Date for such Interest Period, subject, however, to the provisions of Section
2.9.

                "License(s)" shall mean those license(s) or concession(s) to
acquire wireless spectrum in the C and F block broadband PCS spectrum that are
auctioned by the FCC through FCC Auction No. 35 for which Borrower is, in whole
or in part, the winning bidder.

                "License Subsidiary" shall have the meaning set forth in Section
7.6(a).

                "Lien" shall mean any security interest, mortgage, pledge,
encumbrance, lien or charge of any kind (including, without limitation, any
conditional sale or other title retention agreement, or lease in the nature
thereof, or any agreement to give any security interest).

                "Loan Documents" shall mean, collectively, the following
agreements and instruments: (i) this Agreement, (ii) the Administrative Agent's
Fee Letter, (iii) the Collateral Agent's Fee Letter, (iv) the Pledge and (v) any
other agreements or instruments that may be executed and delivered in favor of
the Administrative Agent, the Collateral Agent, QUALCOMM or one or more Lenders
pursuant to or in connection with this Agreement or any of the above-listed
documents.

                "Loan" or "Loans" shall mean, individually, an ADV Loan or a
Cash Loan or, collectively, the ADV Loans and the Cash Loans.

                "Lucent Credit Agreement" shall mean the Credit Agreement, dated
as of September 20, 1999, as amended and restated as of October 20, 2000, among
Cricket Communications, Holdings, the lenders party thereto and Lucent
Technologies Inc.

                "Material Adverse Effect" shall mean a material and adverse
effect on (i) the business, assets, liabilities, operations, prospects or
financial condition of Borrower or of Borrower and its Subsidiaries, taken as a
whole, (ii) the ability of Borrower to perform any of its material obligations
under this Agreement or any other Loan Document, (iii) the validity or
enforceability of any material provision of the Loan Documents, (iv) the
validity, priority or enforceability of the Liens granted to or for the benefit
of the Secured Parties under the Pledge on any material component of the
property encumbered thereunder (it being agreed that any Stock Collateral, as
defined in the Pledge, is such a material component), or (v) the rights or
remedies of, or remedies available to, either Agent or any Lender under any Loan
Document.

                "Minimum ADV Amount" shall have the meaning set forth in Section
2.1(c)(iv).

                "Multiemployer Plan" shall mean a multiemployer plan as defined
in Section 4001(a)(3) of ERISA.

                "Net Winning Bid" shall mean the Total License Bid for each
License to be acquired by Borrower minus any and all non-refundable payments or
deposits that have been

                                       11
<PAGE>   16

made by Borrower with respect to such License in connection with its
participation in FCC Auction No. 35.

                "Nortel Credit Agreement" shall mean the Credit Agreement, dated
as of August 28, 2000, as amended as of October 20, 2000, among Cricket
Communications, Holdings, the lenders party thereto and Nortel Networks Inc.

                "Officer's Certificate" shall mean a certificate of any Person
signed on behalf of such Person by the principal executive officer, the
principal accounting officer or the principal financial officer of such Person.

                "Order" shall mean FCC Order No. 00-219, entitled "In the Matter
of the QUALCOMM Incorporated Petition for Declaratory Ruling Giving Effect to
the Mandate of the District of Columbia Circuit Court of Appeals," released June
8, 2000.

                "Other Taxes" shall mean any and all present or future stamp or
documentary taxes or any other excise or property taxes, charges or similar
levies arising from any payment made hereunder or any other Loan Document or
from, or otherwise with respect to, the execution, delivery or enforcement of,
this Agreement or any other Loan Document.

                "Payment Default Rate" shall have the meaning set forth in
Section 2.8(b)(i).

                "PBGC" shall mean the Pension Benefit Guaranty Corporation or
any entity succeeding to any or all of its functions under Title IV of ERISA.

                "PCS" shall mean Personal Communications Services.

                "Permitted Liens" shall mean Liens permitted by this Agreement,
the Loan Documents, the Indenture (as in effect on the Effective Date), and the
Vendor Credit Agreements (insofar as any collateral subject to the Lien of the
Pledge is concerned, as such Vendor Credit Agreements are in effect on the
Effective Date).

                "Person" shall mean any natural person, corporation,
partnership, joint venture, association, limited liability company, joint stock
company, trust, unincorporated organization or Governmental Authority or other
entity.

                "Plan" shall mean any employee pension benefit plan (other than
a Multiemployer Plan) subject to the provisions of Title IV of ERISA or Section
412 of the Code or Section 302 of ERISA, and in respect of which Borrower or any
ERISA Affiliate is (or, if such plan were terminated, would under Section 4069
of ERISA be deemed to be) an "employer" as defined in Section 3(5) of ERISA.

                "Pledge" shall mean the Pledge Agreement dated as of the date
hereof entered into between Borrower and the Collateral Agent, as the same may
be amended from time to time.

                "Post-Default Rate" shall have the meaning set forth in Section
2.8(b)(ii).

                                       12
<PAGE>   17

                "Prime Rate" shall mean the interest rate from time to time
announced by Citibank, N.A. (or its successor) at its office in New York, New
York as its prime or base rate.

                "Process Agent" shall have the meaning set forth in Section
10.9(d).

                "Promissory Note" shall mean a promissory note to be duly
executed and delivered by Borrower in the form of Exhibit F.

                "PUHCA" shall mean the Public Utility Holding Company Act of
1935.

                "QUALCOMM" shall have the meaning provided in the first
paragraph of this Agreement.

                "Register" shall have the meaning set forth in Section 10.4(d).

                "Related Parties" shall mean, with respect to any specified
Person, such Person's Affiliates and the respective directors, officers,
employees, agents and advisors of such Person and such Person's Affiliates.

                "Relevant Amount" shall have the meaning set forth in Section
2.4(a).

                "Relevant Document" shall mean, at any time, the Indenture and
the Vendor Credit Agreements then binding upon Borrower or any of its
Subsidiaries.

                "Relevant Subsidiary" shall mean, at any time, any Subsidiary of
Borrower except for any Subsidiary of Borrower that has been created after the
Effective Date; provided, however, that the foregoing exception shall not apply
to exclude a Subsidiary from the definition of "Relevant Subsidiary" if such
Subsidiary created after the Effective Date has incurred Indebtedness that (i)
is secured by any Liens on the assets of Borrower, any Subsidiary existing as of
the date hereof or any Subsidiary then constituting a License Subsidiary or (ii)
has been guaranteed by Borrower or any such Subsidiary referred to in clause
(i). "Relevant Subsidiary" shall also include any Subsidiary that is a License
Subsidiary, for so long as it continues to be a License Subsidiary pursuant to
Section 7.6.

                "Required Lenders" shall mean, at any time, Lenders having
Exposures under the Facility and unused Commitments representing at least 51% of
the sum of the total Exposures under the Facility and unused Commitments of all
Lenders at such time.

                "Scheduled Maturity Date" shall mean the fifth (5th) anniversary
of the Closing Date, as such date may be accelerated pursuant to Section 8.2;
provided that if such date is not a Business Day, the Scheduled Maturity Date
shall be the immediately preceding Business Day.

                "SEC" shall mean the Securities and Exchange Commission.

                "Secured Parties" shall mean the Lenders, the Administrative
Agent and the Collateral Agent.

                                       13
<PAGE>   18

                "Securities Act" shall mean the Securities Act of 1933, as
amended, or any survivor statute or statutes with respect thereto.

                "Subject Amount" shall have the meaning set forth in Section
2.11(d).

                "Subsidiary" shall mean, for any Person, any other Person
(whether now existing or hereafter organized) for which at least a majority of
the securities or other ownership interests having ordinary voting power for the
election of directors or other managers are at the time owned or controlled by
such first Person or one or more Subsidiaries of such first Person or any
combination thereof.

                "Substitute Voucher" shall have the meaning provided in Section
2.4(a).

                "Syndication" shall have the meaning assigned in Section 2.12.

                "Tax Return" shall mean any return, declaration, report, claim
for refund or information return or statement relating to Taxes or any amendment
thereto, and including any schedule or attachment thereto.

                "Taxes" shall mean all taxes of every kind (including gross and
net income, gross and net receipts, capital gains, excess profits and minimum
taxes, taxes on tax preferences, capital, net worth, franchise, sales, use,
value-added, stamp, documentary, excise, property and other similar taxes),
charges and withholdings, levies, imposts, duties, fees and deductions imposed
by any Governmental Authority, together with all interest, additions to tax,
penalties and similar add-ons payable with respect thereto.

                "Total Commitment" shall mean, as of the date of determination,
the aggregate principal amount of the Commitments of all Lenders that shall not
exceed the lower of (a) the Initial Commitment and (b) the aggregate amount of
the Net Winning Bids, plus (in either case) the Commitment Fee and interest
capitalized in accordance with Section 2.8(c), as such Total Commitment may be
reduced pursuant to Section 2.5.

                "Total License Bid" shall mean the aggregate amount of payments
(including with proceeds of ADV Loans and Cash Loans) to be made by Borrower
with respect to each License to be acquired by Borrower as a result of its
participation in FCC Auction No. 35 and taking into account any discount,
rebate, credit or other reduction or benefit that Borrower or any of its
Affiliates may derive from FCC Auction No. 35.

                "Trade Payables" shall mean, with respect to any Person, any
accounts payable or any other indebtedness or monetary obligation to trade
creditors created, assumed or guaranteed by such Person or any of its
Subsidiaries arising in the ordinary course of business in connection with the
acquisition of goods or services.

                "United States" or "U.S." shall mean the United States of
America.

                "Vendor Credit Agreements" shall mean the Lucent Credit
Agreement, the Nortel Credit Agreement, the Ericsson Credit Agreement, any
agreements governing additional vendor

                                       14
<PAGE>   19

facilities entered after the Effective Date, and any agreements governing
refinancing of any of the foregoing (in each case as amended from time to time).

                "Vendor Facilities" shall mean the credit facilities provided to
Cricket Communications under the Vendor Credit Agreements (as such facilities
are in effect as of the Effective Date).

                "Wholly-Owned" shall mean, with respect to any Subsidiary of any
Person, the ownership of all of the outstanding Capital Stock of such Subsidiary
by such Person. Notwithstanding the foregoing, Holdings shall be deemed
Wholly-Owned by Borrower as long as Borrower owns not less than 85% of its
outstanding Capital Stock on a fully diluted basis.

                "Withdrawal Liability" shall mean liability to a Multiemployer
Plan as a result of a complete or partial withdrawal from such Multiemployer
Plan, as such terms are defined in Part 1 of Subtitle E of Title IV of ERISA.

        1.2 Other Interpretive Provisions.

                (a) All terms defined in this Agreement shall have their defined
meanings when used in the other Loan Documents and any certificate or other
document made or delivered pursuant hereto or thereto, unless the context
clearly indicates otherwise.

                (b) The words "hereof," "herein" and "hereunder" and words of
similar import when used in this Agreement shall refer to this Agreement as a
whole and not to any particular provision of this Agreement. Section,
subsection, recital, schedule and exhibit references are to this Agreement
unless otherwise specified.

                (c) References to the words "include" or "including" shall be
deemed to be followed by "without limitation" or "but not limited to", whether
or not they are followed by such phrases or words of similar import.

                (d) The word "or" is not exclusive.

                (e) All terms defined in this Agreement in the singular form
shall be equally applicable to both the singular and plural forms of the terms
defined and the masculine, feminine or neuter gender shall include all genders.

                (f) References in any Loan Document to any statute, law, decree,
regulation or other Applicable Law shall be construed as a reference to such
statute, law, decree, regulation or other Applicable Law as re-enacted,
redesignated, amended or extended from time to time, except as otherwise
provided in such Loan Document.

                (g) References in any Loan Document to any Loan Document or any
other document or agreement shall (unless otherwise expressly indicated) be
deemed to include references to such Loan Document, other document or agreement
as amended, varied, supplemented or replaced from time to time in accordance
with the terms of such Loan Document, other document or agreement and this
Agreement and to include any appendices,

                                       15
<PAGE>   20

schedules, exhibits, clarification letters, side letters and disclosure letters
executed in connection therewith.

                (h) References to any Person or Persons shall be construed as a
reference to any successors or assigns of such Person or Persons to the extent
permitted under the Loan Documents and, in the case of any Governmental
Authority, any Person succeeding to its functions and capacities.

        1.3 Accounting Terms; GAAP. Except as otherwise expressly provided
herein, all (a) financial statements and (b) terms of an accounting or financial
nature shall be made and prepared or construed in accordance with GAAP, as in
effect from time to time. All financial statements to be furnished to the
Administrative Agent or Lenders pursuant to this Agreement shall be made and
prepared in accordance with GAAP consistently applied throughout the periods
involved (except as set forth in the notes thereto).

ARTICLE 2. THE TERM LOAN FACILITY.

        2.1 Facility.

                (a) Commitments. Subject to the terms and conditions set forth
in this Agreement, each Lender agrees to make Loans to Borrower during the
Availability Period in the aggregate principal amount of up to, but not
exceeding, its ratable share of the Total Commitment. Such Loans shall be
extended by means of making ADV Loans from QUALCOMM to Borrower; provided,
however, that (i) each Lender shall (subject as aforesaid) make a Cash Loan to
Borrower to finance the payment of the Commitment Fee when due and (ii) QUALCOMM
shall have the right, at its sole option, to make all or a portion of the Loans
contemplated by Section 2.1(b)(ii) as Cash Loans, rather than as ADV Loans. The
Loans shall be made to Borrower from time to time during the Availability Period
in an aggregate principal amount that will not result in (i) such Lender's
Exposure under the Facility exceeding such Lender's Commitment or (ii) the sum
of all Lenders' Exposures under the Facility exceeding the Total Commitment.
Once repaid, Loans may not be reborrowed.

                (b) Permitted Uses of Loan Proceeds. Borrower shall use the
proceeds of the Loans solely to pay (i) the Commitment Fee and (ii) the Net
Winning Bid(s) for the License(s).

                (c) Concerning the ADV.

                        (i) QUALCOMM represents and warrants, as of the
        Effective Date, that, to its knowledge (without independent inquiry),
        the ADV is in full force and effect.

                        (ii) QUALCOMM represents and warrants, as of the
        Effective Date, that it has good title to the ADV, free and clear of all
        Liens, other than restrictions contained therein imposed on the
        ownership and use of the ADV by the FCC or otherwise and other than this
        Agreement.

                        (iii) QUALCOMM represents and warrants that, as of the
        Effective Date, it has not used any portion of the ADV, nor sold,
        assigned, conveyed, encumbered or otherwise transferred or disposed of
        the ADV or any interest therein, in whole or in

                                       16
<PAGE>   21

        part, nor has it entered into any agreement, understanding or
        arrangement with respect to the foregoing, other than (in any such case)
        this Agreement.

                        (iv) During the Availability Period, the principal
        amount of the portion of the ADV retained by QUALCOMM (and not
        transferred to Borrower hereunder) shall equal or exceed the unfunded
        portion (if any) of the Total Commitment (as it may be reduced pursuant
        to the following proviso, and excluding any portion of such Total
        Commitment in respect of the Commitment Fee and capitalized interest,
        the "Minimum ADV Amount"); provided that, the Minimum ADV Amount may be
        reduced to the extent that QUALCOMM agrees to substitute for its
        obligation to make ADV Loans hereunder an obligation to make Cash Loans
        in the same amount. From and after the date hereof and until the end of
        the Availability Period, QUALCOMM shall not sell, assign, convey,
        encumber or otherwise transfer or dispose of the ADV or any interest
        therein, in whole or in part, except as permitted under this Agreement
        and except to the extent that the Minimum ADV Amount would not be
        impaired thereby.

        2.2 Loans and Borrowings.

                (a) Each ADV Loan shall be made by QUALCOMM. Each Cash Loan
shall be made as part of a Borrowing consisting of Cash Loans made by Lenders
ratably in accordance with their respective Commitments. The failure of any
Lender to make any Cash Loan required to be made by it shall not relieve any
other Lender of its obligations hereunder; provided that the Commitments of
Lenders are several and no Lender shall be responsible for any other Lender's
failure to make Cash Loans as required.

                (b) The aggregate principal amount of ADV Loans and Cash Loans
shall not exceed the Total Commitment.

                (c) Each Borrowing shall be composed entirely of Loans made with
reference to the LIBOR Rate, subject to Section 2.9. Each Lender at its option
may make any Cash Loan by causing any domestic or foreign branch or Affiliate of
such Lender to make such Cash Loan.

        2.3 Requests for Borrowings.

                (a) To request a Borrowing, Borrower shall notify the
Administrative Agent and QUALCOMM of such request by telephone not later than
11:00 a.m., New York City time, five (5) Business Days before the date of the
proposed Borrowing. Each telephonic Borrowing Request shall be irrevocable and
shall be confirmed promptly by hand delivery or facsimile to the Administrative
Agent and QUALCOMM of a written Borrowing Request in the form of Exhibit A
approved by the Administrative Agent and QUALCOMM and signed by Borrower. Each
such telephonic and written Borrowing Request shall specify the following
information in compliance with Section 2.2:

                        (i) the aggregate amount of the requested Borrowing
        (which shall be in an amount at least equal to $1,000,000);

                                       17
<PAGE>   22

                        (ii) the License(s) that may be acquired with the
        proceeds of the Borrowing (and in the case of multiple Licenses, the Net
        Winning Bid applicable to each such License); and

                        (iii) the date of such Borrowing, which shall be a
        Business Day; provided that, if QUALCOMM elects to make a Cash Loan
        pursuant to Section 2.3(d), then, if Borrower so notifies the
        Administrative Agent and QUALCOMM within one (1) Business Day following
        such election, a Borrowing shall not be made on the date proposed
        therefor in the Borrowing Request and Borrower shall deliver to the
        Administrative Agent and QUALCOMM a supplemental written notice or
        notices indicating (A) the requested extended date(s) of such proposed
        Borrowing for such Cash Loan, (B) the portion of the Cash Loan to be
        funded on each such extended date and (C) the date when all payments
        with respect to each License referred to in the preceding clause (ii)
        are due and payable, as set forth in a notice issued by the FCC (the
        "FCC Payment Date"), and (D) the description of the License(s) to be
        acquired with such portion of the Cash Loan (including the Net Winning
        Bid applicable to each such License), which notice(s) shall be delivered
        to the Administrative Agent and QUALCOMM no later than two (2) Business
        Days prior to each such requested extended date of such Borrowing. If
        QUALCOMM elects to make an ADV Loan pursuant to Section 2.3(d), Borrower
        shall, no later than five (5) Business Days before each relevant FCC
        Payment Date, deliver to the Administrative Agent and QUALCOMM a
        supplemental written notice indicating (A) the relevant FCC Payment
        Date, (B) the portion of the ADV Loan to be used by Borrower on such FCC
        Payment Date in accordance with Section 2.1(b), and (C) the description
        of the License(s) to be acquired with such portion of the ADV Loan
        (including the Net Winning Bid applicable to each such License and the
        portion of such ADV Loan attributable to each such License).

                (b) Concurrently with the delivery of a Borrowing Request
pursuant to Section 2.3(a) for the initial Borrowing, Borrower shall elect one
of the collateral options as set forth under the definition of "Applicable
Margin" in Section 1.1 (i.e., whether to pledge to the Collateral Agent pursuant
to the Pledge all Capital Stock of License Subsidiaries and LEAP Mexico or only
all Capital Stock of License Subsidiaries).

                (c) Promptly following receipt of a Borrowing Request in
accordance with this Section 2.3, the Administrative Agent shall advise each
Lender of the details thereof and shall contact the relevant Authorized Officers
of QUALCOMM for a determination of whether QUALCOMM has elected, in its sole
discretion, to make an ADV Loan for the aggregate principal amount of the
requested Borrowing or any portion thereof or to make a Cash Loan for all or any
part of such Borrowing.

                (d) Promptly following such request from the Administrative
Agent, but no later than on the fourth (4th) Business Day prior to the date of
the requested Borrowing initially set forth in the Borrowing Request, QUALCOMM
shall deliver a written notice (the "ADV Notice") in the form of Exhibit C to
the Administrative Agent, the Lenders and Borrower by facsimile informing them
of (i) the principal amount of an ADV Loan, if any, to be made by QUALCOMM as
part of such Borrowing and (ii) the aggregate principal amount of Cash Loans, if
any, to be made by the Lenders as part of such Borrowing. If such ADV Notice
requires the

                                       18
<PAGE>   23

making of any Cash Loans, the Administrative Agent shall, promptly upon receipt
of such ADV Notice, advise each Lender of the amount of such Lender's Cash Loan
to be made as part of the requested Borrowing.

        2.4 Making of Loans.

                (a) Promptly after issuing an ADV Notice for the making of ADV
Loans, but no later than 12:00 noon, New York City time, on the proposed date of
the requested Borrowing of an ADV Loan, QUALCOMM shall make an ADV Loan to
Borrower in the aggregate principal amount therefor set forth in such ADV Notice
by executing and delivering an ADV Assignment and Acceptance in the form of
Exhibit B, for such amount, subject, in each case, to the due execution and
delivery of each such ADV Assignment and Acceptance by Borrower. Concurrently
with executing such ADV Assignment and Acceptance, Borrower shall also execute
and deliver a Promissory Note in the form of Exhibit F, for the principal amount
of such ADV Loan. Upon the execution and delivery of such ADV Assignment and
Acceptance and such Promissory Note, Borrower shall be deemed to have borrowed
the ADV Loan in the aggregate principal amount therefor set forth in the
relevant ADV Notice, the ADV Assignment and Acceptance and the relevant
Promissory Note regardless of any subsequent revocation, cancellation or a
diminution in value of, or restriction on, the ADV or the relevant portion
thereof equal to such ADV Loan; provided, however, that notwithstanding any
provision of this Agreement or the ADV Assignment and Acceptance to the
contrary, if Borrower's application to the FCC for the acquisition of the
License(s) intended to be acquired through the proceeds of the Borrowing is
thereafter denied, then, within three (3) Business Days of such denial, Borrower
shall prepay in cash the outstanding principal amount of the Loan intended to
finance the acquisition of such License(s), together with interest accrued
thereon and all other amounts payable with respect thereto, provided that
Borrower may prepay such principal amount (other than the principal amount of
such Loan, if any, used to capitalize interest under Section 2.8(c) or the
Commitment Fee as set forth in Section 3.1(a)(i), which shall be paid in cash)
(such principal amount (net of the amount referred to in the preceding
parenthetical), the "Relevant Amount") by commencing, within three (3) Business
Days of such denial by the FCC, such applications and procedures with the FCC as
may be necessary to permit (A) the return, and transfer to QUALCOMM of, the ADV
or portion thereof intended to be used to finance the purchase of such
License(s), such return to be completed within ninety (90) days of such denial
(failing which, such prepayment shall be made in cash no later than on the last
day of such 90-day period) or (B) the transfer of a new voucher with terms and
conditions substantially similar to, and no less favorable to QUALCOMM than, the
ADV (each such voucher, the "Substitute Voucher") in an amount equal to the
Relevant Amount, such transfer to be completed within ninety (90) days of such
denial (failing which, such prepayment shall be made in cash no later than on
the last day of such 90-day period), so long as:

                        (i) such return or transfer is made within two (2) years
        of the Closing Date,

                        (ii) the ADV or such Substitute Voucher has at least one
        (1) year remaining prior to its expiration (and, in the case of a return
        of all or a portion of the ADV, the FCC has agreed that the returned
        portion of the ADV thereafter will be useable by QUALCOMM in accordance
        with the balance of its terms),

                                       19
<PAGE>   24

                        (iii) there is reasonable certainty that the FCC or the
        United States Government will auction spectrum in which the ADV or such
        Substitute Voucher could reasonably be used or that the ADV or such
        Substitute Voucher can be sold or transferred by QUALCOMM; and

                        (iv) the return or transfer of such portion of the ADV
        or such Substitute Voucher to QUALCOMM is in compliance with Applicable
        Law.

                (b) No later than on the next Business Day following the
assignment of the ADV or any portion thereof pursuant to such ADV Assignment and
Acceptance, QUALCOMM shall inform the FCC of such assignment in accordance with
the FCC Letters and Applicable Laws. On the third (3rd) Business Day following
such notification by QUALCOMM, Borrower shall notify the FCC of its intent to
use such ADV or any portion thereof for payment of a Net Winning Bid and shall
include a detailed description of the License(s) being acquired, as required by
the FCC Letters and by Applicable Law. Each Person party to this Agreement
recognizes hereby that Borrower will not be able to use the ADV or any portion
thereof for payment of a Net Winning Bid for at least eight (8) Business Days
after the execution of the ADV Assignment and Acceptance.

                (c) Each Lender shall make each Cash Loan to be made by it
hereunder on the proposed date of the Borrowing as set forth in the Borrowing
Notice, subject to any supplemental notice, if any, delivered under Section
2.3(a)(iii), by wire transfer of immediately available funds by 12:00 noon, New
York City time, to the account of the Administrative Agent most recently
designated by it for such purpose by notice to Lenders. The Administrative Agent
shall make such Cash Loans available to Borrower by promptly crediting the
amounts so received, in like funds, to an account of Borrower maintained with
the Administrative Agent in New York City and designated by Borrower in the
applicable Borrowing Request.

                (d) Unless the Administrative Agent shall have received notice
from a Lender prior to the proposed date of any Borrowing of Cash Loans that
such Lender will not make available to the Administrative Agent such Lender's
share of such Borrowing, the Administrative Agent may assume that such Lender
has made such share available on such date in accordance with Section 2.4(c) and
may, in reliance upon such assumption, make available to Borrower a
corresponding amount. In such event, if a Lender has not in fact made its share
of the applicable Borrowing of Cash Loans available to the Administrative Agent,
then the applicable Lender and Borrower severally agree to pay to the
Administrative Agent forthwith on demand such corresponding amount with interest
thereon, for each day from and including the date such amount is made available
to Borrower to but excluding the date of payment to the Administrative Agent, at
(i) in the case of such Lender, the greater of the Federal Funds Rate and a rate
determined by the Administrative Agent in accordance with banking industry rules
on interbank compensation or (ii) in the case of Borrower, the LIBOR Rate plus
the Applicable Margin applicable to such Cash Loan. If such Lender pays such
amount to the Administrative Agent, then such amount shall constitute such
Lender's Cash Loan included in such Borrowing.

                (e) At any time, and from time to time, but subject to
Applicable Law and the consent of the FCC, if and to the extent required by
Applicable Law or the terms of the ADV, Borrower shall, at the request of
QUALCOMM, transfer to QUALCOMM all or any portion of

                                       20
<PAGE>   25

the ADV previously transferred to Borrower in respect of any ADV Loan for which
the Interest Commencement Date has not occurred in exchange for QUALCOMM's
commitment to make Cash Loans in the same amount.

        2.5 Termination and Reduction of Commitments.

                (a) Unless previously terminated pursuant to this Agreement, the
Commitments shall terminate on the last Business Day of the Availability Period.
Subject to Section 2.5(d), Borrower may not terminate or reduce the Commitments.

                (b) The principal amounts of any Loans that are prepaid
hereunder may not be reborrowed and the Commitments in respect thereto shall be
deemed utilized.

                (c) Any termination or reduction of the Commitments shall be
permanent. Each reduction of the Commitments shall be made ratably among Lenders
in accordance with their respective percentages of the Total Commitment.

                (d) Within five (5) days after the release by the FCC of a
public notice announcing the close of bidding under FCC Auction No. 35, Borrower
shall deliver a duly executed irrevocable notice to QUALCOMM (with a copy to the
Administrative Agent) stating (i) the aggregate amount of Net Winning Bids for
the License(s) acquired by Borrower in FCC Auction No. 35 and (ii) the maximum
amount of the Loans that Borrower intends to borrow hereunder. The Total
Commitment shall (without reducing the Commitment Fee) be permanently reduced in
accordance with this Section 2.5 by any portion of the Total Commitment that
Borrower does not so intend to use, or cannot use, for purposes set forth in
Section 2.1(b), as stated in such notice of Borrower.

        2.6 Repayment of Loans. Borrower hereby irrevocably and unconditionally
promises to pay to the Administrative Agent for the ratable account of each
Lender the total principal amount of all Loans, subject to any prepayments of
principal pursuant to Sections 2.4(a), 2.10 or 2.11 and to acceleration
hereunder, in one (1) installment on the Scheduled Maturity Date.

        2.7 Evidence of Debt.

                (a) Each Lender shall maintain in accordance with its usual
practice an account or accounts evidencing the indebtedness of Borrower to such
Lender resulting from each Loan made or maintained by such Lender, including the
amounts of principal and interest payable and paid to such Lender from time to
time hereunder.

                (b) The Administrative Agent shall maintain accounts in which it
shall record (i) the amount of each Loan made hereunder, (ii) the amount of any
principal or interest due and payable or to become due and payable from Borrower
to each Lender hereunder and (iii) the amount of any sum received by the
Administrative Agent hereunder for the account of Lenders and each Lender's
share thereof.

                (c) The entries made in the accounts maintained pursuant to
Section 2.7(a) or Section 2.7(b) shall be prima facie evidence of the existence
and amounts of the obligations recorded therein; provided that the failure of
any Lender or the Administrative Agent to maintain

                                       21
<PAGE>   26

such accounts or any error therein shall not in any manner affect the obligation
of Borrower to repay the Loans in accordance with the terms of this Agreement.

                (d) Borrower shall execute and deliver to QUALCOMM a Promissory
Note evidencing an ADV Loan as and when required by Section 2.4(a). Said
Promissory Note shall be dated as of the effective date of the Borrowing of such
ADV Loan (as determined under Section 2.4(a)) and shall be in the principal
amount of such ADV Loan.

                (e) Within fifteen (15) Business Days of the making of any Cash
Loan, Borrower agrees to execute and deliver to each Lender, promptly upon
request by such Lender, a Promissory Note evidencing Borrower's Indebtedness to
such Lender under this Agreement in the amount of such Lender's Commitment to
make Cash Loans or, at the request of such Lender, in the principal amount of
such Cash Loan. Any such Promissory Note paid or prepaid in full shall be
surrendered to Borrower by such Lender.

                (f) In the case of any conflict between the terms of this
Agreement and any Promissory Note, the terms of this Agreement shall control.
Without limiting the generality of the foregoing, all Loans made hereunder shall
accrue interest from the Interest Commencement Date of such Loan and shall
otherwise be treated as a Loan hereunder irrespective of Borrower's execution or
non-execution of a Promissory Note evidencing such Loan.

        2.8 Interest.

                (a) Each Loan shall bear interest at the LIBOR Rate determined
two Business Days before the first Business Day of the Interest Period during
which such Borrowing is made or continued plus the relevant Applicable Margin,
subject to Section 2.9; provided that the LIBOR Rate for the Loans (if any) made
prior to the Interest Period commencing in April 2001 shall be determined two
Business Days prior to the initial Borrowing hereunder (if any) prior to such
Interest Period (as if the period from the date of such initial Borrowing to the
commencement of such Interest Period were itself a six-month Interest Period).

                (b) Notwithstanding the foregoing, (i) if any principal of or
interest on any Loan or any fee or other amount payable by Borrower hereunder or
under any other Loan Document is not paid when due, whether at stated maturity,
upon acceleration, by mandatory prepayment or otherwise, such overdue amount and
each Loan shall bear interest, after as well as before judgment, at a rate per
annum equal to five percent (5%) plus the interest rate otherwise applicable to
the Loans pursuant to Section 2.8(a) ("Payment Default Rate"), and (ii) so long
as any other Default has occurred and is continuing and the preceding clause (i)
does not apply, all amounts owing hereunder shall bear interest at a rate per
annum equal to two percent (2%) plus the interest rate otherwise applicable to
the Loans pursuant to Section 2.8(a) (the "Post-Default Rate").

                (c) Interest on each Loan shall accrue from the Interest
Commencement Date of such Loan to the date on which such Loan is paid in full.
Accrued interest on each Loan shall be payable (i) on the last day of each
Interest Period and (ii) on any prepayment (on the amount prepaid), at maturity
(whether by acceleration or otherwise and including the Scheduled Maturity Date)
and, after such maturity, on demand; provided that until and including the
Interest Period

                                       22
<PAGE>   27

commencing in April 2002, and notwithstanding the amount of any Lender's
Commitment or the Total Commitment then available, accrued interest due and
payable on each Loan may be capitalized and any such amount so capitalized shall
be deemed to be included in, and (as and when due and payable) added to, the
aggregate principal amount of the Loans.

                (d) All interest hereunder shall be computed on the basis of a
year of 360 days and shall be payable for the actual number of days elapsed
(including the first day but excluding the last day). The applicable LIBOR Rate
shall be determined by the Administrative Agent, and such determination shall be
conclusive absent manifest error.

                (e) At any time prior to the Closing Date, at the written
request of Borrower delivered to QUALCOMM and the Administrative Agent, Borrower
and QUALCOMM (for itself and the other Lenders) shall negotiate in good faith
appropriate modifications to this Agreement and the other Loan Documents so as
to permit the issuance by Borrower to QUALCOMM of warrants to purchase shares of
Borrower's Capital Stock in exchange for a reduction in the Applicable Margin by
up to three percent (3.0%). If the parties hereto agree upon such modifications,
they shall promptly execute and implement such modifications.

        2.9 Alternate Rate of Interest. Subject to the right of a Lender,
pursuant to Section 4.1, to make a demand upon Borrower to compensate such
Lender for any increased cost or reduced rate of return contemplated under
Section 4.1, if prior to the date of any Borrowing and/or prior to the
commencement of any Interest Period either (i) the Administrative Agent
determines (which determination shall be conclusive absent manifest error) that
adequate and reasonable means do not exist for ascertaining the LIBOR Rate for
the applicable Interest Period or (ii) the Administrative Agent is advised by
the Required Lenders that the LIBOR Rate for such Interest Period will not
adequately and fairly reflect the cost to such Lenders (or Lender) of making or
maintaining their Loans (or its Loan) for such Interest Period, then the
Administrative Agent shall give notice thereof to Borrower and Lenders by
telephone or facsimile as promptly as practicable thereafter and, until the
Administrative Agent notifies Borrower and Lenders that the circumstances giving
rise to such notice no longer exist, all Loans shall be made or continued at a
rate per annum equal to the Prime Rate minus 1% per annum plus the relevant
Applicable Margin.

        2.10 Voluntary Prepayments.

                (a) Borrower shall have the right at any time and from time to
time to prepay in cash all or any portion of any Borrowing, subject to prior
notice in accordance with Section 2.10(b).

                (b) Borrower shall notify the Administrative Agent and QUALCOMM
by telephone (confirmed by facsimile) of any prepayment hereunder not later than
11:00 a.m., New York City time, five (5) Business Days before the date of
prepayment. Each such notice shall be irrevocable and shall specify the
prepayment date and the principal amount of each Borrowing or portion thereof to
be prepaid. Promptly following receipt of any such notice relating to a
Borrowing, the Administrative Agent shall advise Lenders of the contents
thereof. Each partial prepayment of the Loans shall be in a minimum principal
amount of $2,500,000. Such

                                       23
<PAGE>   28

prepayments shall be applied in accordance with Section 4.5(b). Prepayments
shall be accompanied by accrued interest to the extent required by Section 2.8.

                (c) There shall be no premium or penalty payable in connection
with any voluntary prepayment other than breakage costs actually incurred.

        2.11 Mandatory Prepayments.

                (a) The Loans shall be prepaid by Borrower to the Administrative
Agent in an amount (together with interest accrued thereon and other amounts
payable with respect thereto) equal to, and upon receipt by Borrower or any
Relevant Subsidiary of, all net cash proceeds from (A) any issuance or sale of
equity by Borrower and each Relevant Subsidiary (excluding (i) proceeds from the
issuance of equity pursuant to the exercise of any outstanding options, warrants
or like instruments outstanding on the Effective Date, (ii) proceeds from the
exercise of any existing and future employee stock options or from other
issuances of equity to employees pursuant to or in connection with their
employment, (iii) proceeds from the issuance of equity, options or warrants to
Borrower or any of its Relevant Subsidiaries by any Subsidiaries of Borrower,
and (iv) proceeds of the $250 million equity commitment from Acqua Wellington
Asset Management actually applied to the purchase of Licenses in FCC Auction No.
35 or of any other FCC wireless licenses acquired from any Person other than the
FCC), or (B) the incurrence of any Indebtedness by Borrower and each Relevant
Subsidiary of the type described in clauses (a) and (b) of the definition of
Indebtedness (excluding (i) any such Indebtedness incurred pursuant to the
Vendor Credit Agreements and additional vendor facilities and any refinancing
thereof (up to the amount of vendor debt refinanced) and (ii) any such
Indebtedness issued in favor of Borrower or any of its Relevant Subsidiaries
from any Subsidiaries of Borrower); provided, however, that no prepayment under
this Section 2.11(a) is required until the aggregate net cash proceeds realized
by Borrower and its Relevant Subsidiaries from such issuances, sales and
incurrences after December 21, 2000 exceed $400,000,000. Such prepayments shall
be applied in accordance with Section 4.5(b).

                (b) To the extent any mandatory prepayment pursuant to Section
2.11(a) is prohibited or restricted under the Vendor Facilities, the inability
of Borrower to make a mandatory prepayment under Section 2.11(a) shall not
result in a Default under this Agreement.

                (c) If Borrower pays, redeems, repurchases or defeases any bonds
or notes issued under the Indenture prior to their scheduled maturity, Borrower
shall make a concurrent prepayment of the Loans then outstanding, together with
interest accrued thereon and other amounts payable with respect thereto,
provided that the aggregate principal amount of such prepayments of Loans shall
be not less than (i) the aggregate principal amount of the Loans then
outstanding, multiplied by (ii) a fraction, the numerator of which is the
outstanding principal amount of any Indebtedness under the Indenture so prepaid,
redeemed, repurchased or defeased and the denominator of which is the aggregate
principal amount of any and all Indebtedness then outstanding under the
Indenture (in each case, before giving effect to any such prepayment,
redemption, repurchase or defeasance).

                (d) If any License financed by the proceeds of the Loans under
this Agreement is revoked or withdrawn by the FCC, Borrower shall within three
(3) Business Days

                                       24
<PAGE>   29

(subject to the proviso in the second sentence of this Section 2.11(d)) of such
revocation or withdrawal (i) to the extent such License(s) was owned by a Person
the Capital Stock of whom was, immediately prior to such revocation or
withdrawal, pledged to the Secured Parties pursuant to the Pledge or a pledge
required under Section 5.1(n), provide substitute collateral of at least the
same value (as determined by the Lenders) or (ii) make a prepayment of the Loans
in an amount sufficient to assure that the ratio of (A) the Total License Bids
for all Licenses held by License Subsidiaries to (B) the total Exposures of the
Lenders, shall not be reduced below the ratio of such amounts in effect
immediately prior to such revocation or withdrawal. Such prepayment shall be
made in cash, together with interest accrued thereon and other amounts payable
with respect thereto; provided that Borrower may prepay such principal amount
(other than the principal amount of such Loans, if any, used to capitalize
interest under Section 2.8(c) or the Commitment Fee as set forth in Section
3.1(a)(i), which shall be paid in cash) such principal amount (net of the amount
referred to in the preceding parenthetical), the "Subject Amount") by
commencing, within three (3) Business Days of such revocation or withdrawal by
the FCC, such applications and procedures with the FCC as may be necessary to
permit (A) the return, and transfer to QUALCOMM, of the ADV or the portion
thereof used to finance the purchase of such License(s), such return to be
completed within ninety (90) days of such revocation or withdrawal (failing
which, such prepayment shall be made in cash no later than the last day of such
90-day period), or (B) the transfer of a Substitute Voucher in the amount equal
to the Subject Amount, such transfer to be completed within ninety (90) days of
such revocation or withdrawal (failing which, such prepayment shall be made in
cash no later than the last day of such 90-day period), so long as, in the case
of the ADV or such Substitute Voucher, (w) such return or transfer is made
within two (2) years of the Closing Date, (x) the ADV or the Substitute Voucher
has at least one (1) year remaining prior to its expiration (and, in the case of
a return of all or a portion of the ADV, the FCC has agreed that the returned
portion of the ADV thereafter will be useable by QUALCOMM in accordance with the
balance of its terms), (y) there is reasonable certainty that the FCC or the
United States Government will auction spectrum in which the ADV or the
Substitute Voucher could reasonably be used or that the ADV or the Substitute
Voucher can be sold or transferred by QUALCOMM and (z) the return or transfer of
such portion of the ADV or such Substitute Voucher to QUALCOMM is in compliance
with Applicable Law.

        2.12 Syndications. Each Lender shall have the right from time to time to
arrange, or to attempt to arrange, a transfer or assignment of Loans funded
under the Facility, together with, in any such case, its related rights,
remedies, powers and privileges under this Agreement and each Loan Document (a
"Syndication") pursuant to and in accordance with the provisions of Section
10.4. Borrower shall cooperate with the Administrative Agent and each Lender to
facilitate any Syndication, and Borrower agrees, at its expense, to execute and
deliver such documents (including amendments to this Agreement reasonably
requested by the Administrative Agent relating to such Syndication), furnish
such information, attend such meetings, assist the Administrative Agent and
Lenders, and take any and all other actions as may be reasonably requested by
the Administrative Agent or any Lender in connection with any Syndication.

                                       25
<PAGE>   30

ARTICLE 3. FEES.

        3.1 Fees.

                (a) Borrower agrees to pay to QUALCOMM (i) an upfront fee on the
Closing Date in the amount set forth in the first sentence of the third
paragraph of the Commitment Letter (the "Commitment Fee"), which shall be
capitalized as a Cash Loan and shall be included in the aggregate principal
amount of the initial Borrowing or (ii) a withdrawal fee on the date and in the
amount set forth in the second sentence of the third paragraph of the Commitment
Letter.

                (b) Borrower agrees to pay to the Administrative Agent, for its
own account, fees payable in the amounts and at the times provided in the
Administrative Agent's Fee Letter.

                (c) Borrower agrees to pay to the Collateral Agent, for its own
account, fees payable in the amounts and at the times provided in the Collateral
Agent's Fee Letter.

                (d) All fees payable hereunder shall be paid on the dates due,
in immediately available funds. Fees paid shall not be refundable under any
circumstances.

ARTICLE 4. YIELD PROTECTION; PAYMENTS; TAXES; ETC.

        4.1 Increased Costs.

                (a) If, due to either (i) the introduction of or any change in
or in the interpretation of any law or regulation or (ii) the compliance with
any guideline or request from any central bank or other Governmental Authority
(whether or not having the force of law), there shall be any increase in the
cost to any Lender other than by way of imposition of Taxes that shall be
governed exclusively by Section 4.4) of agreeing to make or making, funding or
maintaining, or otherwise related to, the Loans, then Borrower shall from time
to time, upon demand by such Lender (with a copy of such demand to the
Administrative Agent), pay to the Administrative Agent for the account of such
Lender additional amounts sufficient to compensate such Lender for such
increased cost. A certificate as to the amount of such increased cost, submitted
to Borrower and the Administrative Agent by such Lender, shall be conclusive and
binding for all purposes, absent manifest error.

                (b) If any Lender determines that compliance with any law or
regulation or any guideline or request from any central bank or other
Governmental Authority (whether or not having the force of law) affects or would
affect the amount of capital required or expected to be maintained by such
Lender or such Lender's holding company and that the amount of such capital is
increased by or based upon the existence of such Lender's commitment to lend or
extend credit hereunder and other commitments of this type, or if any Lender
determines that the introduction of or any change in or in the interpretation of
any law or regulation regarding capital requirements has or would have the
effect of reducing the rate of return on such Lender's capital or on the capital
of such Lender's holding company, as a consequence of this Agreement or the
Loans made by such Lender, to a level below that which such Lender or such
Lender's holding company could have achieved but for such introduction or change
in or in the interpretation of such law or regulation (taking into consideration
such Lender's policies and the policies of such Lender's holding company with
respect to capital adequacy), then, upon demand by such Lender

                                       26
<PAGE>   31

(with a copy of such demand to the Administrative Agent), Borrower shall
immediately pay to the Administrative Agent for the account of such Lender from
time to time as specified by such Lender, such additional amount or amounts as
will compensate such Lender or such Lender's holding company for any such
reduction suffered and such additional amount or amounts as will compensate such
Lender or such holding company to the extent that such Lender reasonably
determines such increase in capital to be allocable to the existence of such
Lender's commitment to lend hereunder. A certificate as to such amounts
submitted to Borrower and the Administrative Agent by such Lender shall be
conclusive and binding for all purposes, absent manifest error.

        4.2 Break Funding Payments. In the event of (a) the payment of any
principal of any Loan other than on the last day of an Interest Period
applicable thereto (including as a result of an Event of Default), or (b) the
failure to borrow or prepay any Loan on the date specified in any notice
delivered pursuant hereto, then, in any such event, Borrower shall compensate
the Lender of such Loan for any actual loss, cost and expense reasonably
incurred in obtaining, liquidating or redeploying deposits from third parties
acquired to maintain all or any portion of such Loan. A certificate of any
Lender setting forth any amount or amounts that such Lender is entitled to
receive pursuant to this Section 4.2 shall be delivered to Borrower and shall be
conclusive absent manifest error. Borrower shall pay to the Administrative Agent
for the account of such Lender the amount shown as due on any such certificate
within ten (10) days after receipt thereof.

        4.3 Illegality. Notwithstanding any other provision of this Agreement,
if any Lender shall notify the Administrative Agent that the introduction of or
any change in or in the interpretation of any law or regulation makes it
unlawful, or any central bank or other Governmental Authority asserts that it is
unlawful, for such Lender or its applicable lending office to perform its
obligations hereunder to make or continue the Loans or to fund or otherwise
maintain the Loans hereunder, if such Loans bear interest at a rate determined
in accordance with Section 2.8, then from and after the first Business Day after
the delivery of such notice to the Administrative Agent interest on each such
Loan of such Lender thereafter instead shall accrue interest at a rate per annum
equal to the Prime Rate minus 1% per annum plus the Applicable Margin; provided
that, if such change in interest rate does not cure such illegality, each such
Loan shall be due and payable in full on demand, together with interest accrued
thereon and all other amounts payable with respect thereto (provided, further,
that such illegality does not exist as a consequence of a voluntary act of
QUALCOMM).

        4.4 Taxes.

                (a) Any and all payments by or on account of any obligation of
Borrower hereunder or under any other Loan Document shall be made free and clear
of and without deduction for any Indemnified Taxes or Other Taxes; provided that
if Borrower shall be required to deduct any Indemnified Taxes or Other Taxes
from such payments to the Administrative Agent, the Collateral Agent or any
Lender, then (i) the sum payable shall be increased as necessary so that after
making all required deductions of Indemnified Taxes or Other Taxes (as the case
may be) (including deductions applicable to additional sums payable under this
Section 4.4(a)) the Administrative Agent, the Collateral Agent or such Lender
(as the case may be) receives an amount equal to the sum it would have received
had no such deductions been

                                       27
<PAGE>   32

made, (ii) Borrower shall make such deductions and (iii) Borrower shall pay the
full amount deducted to the relevant Governmental Authority in accordance with
Applicable Law.

                (b) In addition, Borrower shall pay any Other Taxes to the
relevant Governmental Authority in accordance with Applicable Law.

                (c) Borrower shall indemnify the Administrative Agent, the
Collateral Agent and each Lender, within ten (10) days after written demand
therefor, for the full amount of any Indemnified Taxes or Other Taxes paid by
the Administrative Agent, the Collateral Agent or such Lender, as the case may
be, on or with respect to any payment by or on account of any obligation of
Borrower hereunder or under any other Loan Document (including Taxes imposed or
asserted on or attributable to amounts payable under this Section 4.4(c)) and
any penalties, interest and reasonable out-of-pocket expenses arising therefrom
or with respect thereto, whether or not such Indemnified Taxes or Other Taxes
were correctly or legally imposed or asserted by the relevant Governmental
Authority. A certificate as to the amount of such payment or liability delivered
to Borrower by a Lender, or by the Administrative Agent on its own behalf or on
behalf of a Lender, or by the Collateral Agent, shall be conclusive absent
manifest error.

                (d) As soon as practicable after any payment of Indemnified
Taxes or Other Taxes by Borrower to a Governmental Authority, Borrower shall
deliver to the Administrative Agent, to the extent reasonably available, the
original or a certified copy of a receipt issued by such Governmental Authority
evidencing such payment, or a copy of the return reporting such payment or other
evidence of such payment reasonably satisfactory to the Administrative Agent.

                (e) Each Lender organized under the laws of a jurisdiction
outside the United States shall, on the date of the Assignment and Acceptance
pursuant to which it became a Lender, and from time to time thereafter if
requested in writing by the Borrower or the Administrative Agent or promptly
upon the occurrence of any event requiring a change in the last form delivered
by such Lender (but, in each case, only so long as such Lender remains lawfully
able to do so after the date such Lender becomes a Lender hereunder), provide
the Administrative Agent and the Borrower with either (i) Internal Revenue
Service form W-8BEN or W-8ECI, as appropriate, or any successor form prescribed
by the Internal Revenue Service, certifying that such Lender is entitled to
benefits under an income tax treaty to which the United States is a party that
reduces the rate of withholding tax on payments under this Agreement and the
Loans or certifying that the income receivable pursuant to this Agreement and
the Loans is effectively connected with the conduct of a trade or business in
the United States or (ii) Internal Revenue Service form W-8BEN, upon which the
Borrower is entitled to rely, from a Lender that has not at the time such Lender
becomes a Lender hereunder been named in any notice issued by the Secretary of
the Treasury (or such Secretary's authorized delegate) pursuant to Sections
881(c)(2)(B) or 871(h)(5) of the Code, or any successor form or statement
prescribed by the Internal Revenue Service, in order to establish that such
Lender is entitled to treat the interest payments under this Agreement and the
Loans as portfolio interest that is exempt from withholding tax under the Code,
together with a certificate stating that such Lender is not described in Section
881(c)(3) of the Code. If the form provided by a Lender at the time such Lender
first becomes a party to this Agreement indicates a United States interest
withholding tax rate in excess of zero (or if the Lender cannot provide at such
time such form because it is not entitled to reduced withholding under a treaty,
the payments are not effectively connected

                                       28
<PAGE>   33

income and the payments do not qualify as portfolio interest), withholding tax
at such rate (or at the then existing U.S. statutory rate if the Lender cannot
provide the form) shall be excluded from Indemnified Taxes unless and until such
Lender provides the appropriate form certifying that a lesser rate applies. For
any period with respect to which a Lender has failed to provide the Borrower and
the Administrative Agent with the appropriate form described in this Section
4.4(e) (other than if such failure is due to a change in law occurring after the
date on which a form originally was required to be provided), such Lender shall
not be entitled to indemnification under this Section 4.4 with respect to
Indemnified Taxes imposed by the United States. Any Lender claiming any
additional amounts payable pursuant to this Section 4.4 shall use reasonable
efforts (consistent with its internal policy and legal and regulatory
restrictions) to change the jurisdiction of its applicable lending office(s) if
the making of such a change would avoid the need for, or reduce the amount of,
any such additional amounts that may thereafter accrue and would not, in the
reasonable judgement of such Lender, be otherwise disadvantageous to such
Lender.

        4.5 Payments Generally; Pro Rata Treatment; Sharing of Set-offs.

                (a) Borrower shall make each payment required to be made by it
hereunder (whether of principal, interest, fees or of amounts payable under
Section 4.1, 4.2 , 4.3, or 4.4, or otherwise) prior to 1:00 p.m., New York City
time, on the date when due, in immediately available funds, without set-off or
counterclaim. Any amounts received after such time on any date may, in the
discretion of the Administrative Agent, be deemed to have been received on the
next succeeding Business Day for purposes of calculating interest thereon. All
such payments shall be made to the Administrative Agent at its address referred
to in Section 10.1, except that payments pursuant to Sections 4.1, 4.2, 4.3,
4.4, 9.7, and 10.3 may be made directly to the Persons entitled thereto. The
Administrative Agent shall distribute any such payments received by it for the
account of any other Person to the appropriate recipient promptly following
receipt thereof. If any payment hereunder shall be due on a day that is not a
Business Day, the date for payment shall be extended to the next succeeding
Business Day and, in the case of any payment accruing interest, interest thereon
shall be payable for the period of such extension. All payments hereunder shall
be made in Dollars.

                (b) If at any time insufficient funds are received by and
available to the Administrative Agent to pay fully all amounts of principal,
interest, fees and other amounts then due hereunder, such funds shall be applied
(i) first, towards payment of interest, fees and any other amounts (excluding
principal) then due hereunder, ratably among the parties entitled thereto in
accordance with the amounts of interest, fees and any other amounts (excluding
principal) then due to such parties, and (ii) second, towards payment of
principal then due hereunder, ratably among the parties entitled thereto in
accordance with the amounts of principal then due to such parties.

                (c) If any Lender shall, by exercising any right of set-off or
counterclaim or otherwise, obtain payment in respect of any principal of or
interest or other amount on any of its Loans resulting in such Lender receiving
payment of a greater proportion of the aggregate amount of its Loans and accrued
interest and other amounts thereon than the proportion received by any other
Lender, then the Lender receiving such greater proportion shall purchase (for
cash at face value) participations in the Loans of other Lenders to the extent
necessary so that the

                                       29
<PAGE>   34

benefit of all such payments shall be shared by Lenders ratably in accordance
with the aggregate amount of principal of and accrued interest and other amounts
on their respective Loans; provided that (i) if any such participations are
purchased and all or any portion of the payment giving rise thereto is
recovered, such participations shall be rescinded and the purchase price
restored to the extent of such recovery, without interest, and (ii) the
provisions of this paragraph shall not be construed to apply to any payment made
by Borrower pursuant to and in accordance with the express terms of this
Agreement or any payment obtained by a Lender as consideration for the
assignment of or sale of a participation in any of its Loans to any assignee or
participant, other than to Borrower or any Subsidiary or Affiliate thereof (as
to which the provisions of this paragraph shall apply). Borrower consents to the
foregoing and agrees, to the extent it may effectively do so under Applicable
Law, that any Lender acquiring a participation pursuant to the foregoing
arrangements may exercise against Borrower rights of set-off and counterclaim
with respect to such participation as fully as if such Lender were a direct
creditor of Borrower in the amount of such participation.

                (d) Unless the Administrative Agent shall have received notice
from Borrower prior to the date on which any payment is due to the
Administrative Agent for the account of Lenders hereunder that Borrower will not
make such payment, the Administrative Agent may assume that Borrower has made
such payment on such date in accordance herewith and may, in reliance upon such
assumption, distribute to Lenders the amount due. In such event, if Borrower has
not in fact made such payment, then each of Lenders severally agrees to repay to
the Administrative Agent forthwith on demand the amount so distributed to such
Lender with interest thereon, for each day from and including the date such
amount is distributed to it to but excluding the date of payment to the
Administrative Agent, at the Federal Funds Rate.

                (e) If any Lender shall fail to make any payment required to be
made by it pursuant to Section 2.4(d) or 4.5(d), then the Administrative Agent
may, in its discretion (notwithstanding any contrary provision hereof), apply
any amounts thereafter received by the Administrative Agent for the account of
such Lender to satisfy such Lender's obligations under such Sections until all
such unsatisfied obligations are fully paid.

ARTICLE 5. CONDITIONS PRECEDENT TO LOANS.

        5.1 Conditions Precedent to the Initial Loans. The obligations of
Lenders to make the initial Loans are subject to the satisfaction (or waiver by
the Administrative Agent and each Lender) of the following conditions (it being
agreed that the Administrative Agent shall certify to Borrower when such
conditions have been satisfied or waived):

                (a) Loan Agreement. The Administrative Agent and Lenders shall
have received from each party hereto either (i) a counterpart of this Agreement
signed on behalf of such party or (ii) written evidence satisfactory to the
Administrative Agent (which may include facsimile transmission of a signed
signature page of this Agreement) that such party has signed a counterpart of
this Agreement.

                (b) Other Loan Documents. The Administrative Agent and Lenders
shall have received from the relevant parties either (i) a counterpart of each
other Loan Document signed on behalf of each of the signatories thereto or (ii)
written evidence satisfactory to the

                                       30
<PAGE>   35

Administrative Agent (which may include a facsimile transmission of a signed
signature page of such Loan Document) that each party to each other Loan
Document has signed a counterpart of such Loan Document.

                (c) Corporate Documents. The Administrative Agent and Lenders
shall have received the Charter Documents of Borrower.

                (d) Incumbency Certificates. The Administrative Agent and
Lenders shall have received signature and incumbency certificates of the
officers of Borrower executing any Loan Document to which it is or is to be a
party.

                (e) Good Standing. The Administrative Agent and Lenders shall
have received certificates of the appropriate officers of the State of Delaware
and California each dated as of a recent date, as to the good standing, and
authority to transact business, of Borrower.

                (f) Secretary's Certificate. The Administrative Agent and
Lenders shall have received a certificate of the corporate secretary of Borrower
certifying as to the resolutions attached thereto relating to the authorization
and execution of this Agreement and the other Loan Documents.

                (g) Opinions of Counsel. The Administrative Agent and Lenders
shall have received a favorable written opinion (addressed to the Administrative
Agent and Lenders and dated on or before the Closing Date) of Messrs. Latham and
Watkins, special New York and California counsel to Borrower, or any other legal
opinion as the Administrative Agent or any Lender may reasonably request, each
dated on or before the Closing Date and otherwise in form and substance
acceptable to the Administrative Agent and the Lenders, covering such matters as
the Administrative Agent or any Lender may reasonably request.

                (h) Financial Statements. The Administrative Agent and Lenders
shall have received the most recent audited annual and unaudited quarterly
financial statements of Borrower (on a consolidated basis), together with a
certificate from the chief financial officer of Borrower, stating that there has
been no change in the consolidated assets, liabilities, business, operations or
financial condition of Borrower and its Subsidiaries, taken as whole, that has
resulted in, or would reasonably be expected to result in, a Material Adverse
Effect.

                (i) No Default or Event of Default. No default or event of
default shall have occurred and be continuing under any Relevant Document and no
Default or Event of Default shall be continuing hereunder.

                (j) The Administrative Agent's Fee Letter. The Administrative
Agent shall have received the Administrative Agent's Fee Letter, duly executed
by Borrower and accepted by the Administrative Agent.

                (k) The Collateral Agent's Fee Letter. The Administrative Agent
shall have received the Collateral Agent's Fee Letter, duly executed by Borrower
and accepted by the Collateral Agent.

                                       31
<PAGE>   36

                (l) Corporate Proceedings. All corporate, shareholder and legal
proceedings and all instruments and agreements in connection with the
transactions contemplated by this Agreement and the other Loan Documents shall
be reasonably satisfactory in form and substance to the Administrative Agent,
and the Administrative Agent shall have received all information and copies of
all certificates, documents and papers, including records of corporate and
shareholder proceedings and Governmental Approvals, if any, which the
Administrative Agent may have reasonably requested in connection therewith, such
documents and papers where appropriate to be certified by proper corporate
officers or Governmental Authorities; provided, however, that no information
concerning Borrower's bids or bidding strategy for FCC Auction No. 35 shall be
provided until after Borrower's long-form application to acquire the Licenses
has been submitted to the FCC.

                (m) Process Agent. The Administrative Agent shall have received
evidence of Borrower's appointment of an agent for service of process in the
State of New York.

                (n) If Borrower elects a collateral option under the definition
of "Applicable Margin" in Section 1.1 that includes a pledge of Capital Stock in
LEAP Mexico, the Administrative Agent and Lenders shall have received either (i)
a counterpart of a pledge agreement, acceptable in form, scope and substance to
the Administrative Agent and the Lenders, creating a legal, valid and
enforceable first priority Lien on the Capital Stock of LEAP Mexico in favor of
the Collateral Agent duly executed and delivered by each of Borrower and the
Collateral Agent or (ii) written evidence satisfactory to the Administrative
Agent (which may include facsimile transmission of a signed signature page of
such pledge agreement) that each such party has signed a counterpart thereof.

                (o) Other Documents. Borrower shall provide to the
Administrative Agent and the Lenders such other information or documents related
to the business or operations of Borrower and its Relevant Subsidiaries or the
transactions contemplated hereby, including their participation in FCC Auction
No. 35, as the Administrative Agent and the Lenders may reasonably request;
provided, however, that no information concerning Borrower's bids or bidding
strategy for FCC Auction No. 35 shall be provided until after Borrower's long
form application to acquire the Licenses has been submitted to the FCC.

Upon the satisfaction (or waiver by the Administrative Agent and each Lender) of
any of the conditions precedent set forth in Section 5.1, the Administrative
Agent shall notify Borrower and Lenders of each such satisfaction or waiver, and
such notice shall be conclusive and binding. Notwithstanding the foregoing, the
obligations of Lenders to make Loans shall not become effective unless each of
the foregoing conditions in Section 5.1 and (as to the initial Borrowing)
Section 5.2 is satisfied (or waived pursuant to Section 10.2) at or prior to
2:00 p.m., New York City time, on the last day of the Availability Period (and,
in the event such conditions are not so satisfied or waived, the Commitments
shall terminate at such time).

                                       32
<PAGE>   37

        5.2 Further Conditions Precedent to Loans. The obligation of each Lender
to make a Loan, including its initial Loan, with respect to any Borrowing is
subject to the satisfaction (or waiver by the Administrative Agent and each
Lender) of the following conditions:

                (a) Request for Borrowing. The Administrative Agent shall have
received a Borrowing Request and all supporting documentation in accordance with
Section 2.3.

                (b) Representations and Warranties. The representations and
warranties of Borrower set forth in this Agreement and the representations and
warranties of Borrower and its Affiliates set forth in each Loan Document and
Relevant Document shall be true and correct in all material respects on and as
of the date of such Borrowing or as of any earlier date as to which such
representation and warranty is expressly limited.

                (c) No Change in Business. Since the Effective Date, there shall
have been no change in the consolidated assets, liabilities, business,
operations or financial condition of Borrower or Borrower and its Subsidiaries,
taken as a whole, that has resulted in, or would reasonably be expected to
result in, a Material Adverse Effect.

                (d) No Default or Event of Default. At the time of and
immediately after giving effect to such Borrowing, (i) no Default or Event of
Default shall have occurred and be continuing, (ii) no default or event of
default under any Relevant Document or under any Indebtedness with a principal
amount greater than $5,000,000 shall have occurred and be continuing and (iii)
the Borrowings under this Agreement shall not cause a default under any Relevant
Document or under any Indebtedness with a principal amount greater than
$5,000,000.

                (e) Material Adverse Effect. Since the date of the most recent
audited financial statements delivered pursuant to Section 5.1(h), no event,
circumstance, occurrence or condition shall have occurred which has resulted in,
or would reasonably be expected to result in, a Material Adverse Effect.

                (f) No Force Majeure. The Administrative Agent shall have
received satisfactory evidence that no event of force majeure or other event or
condition exists which permits or requires any party to any of the Relevant
Documents to cancel, suspend or terminate its performance thereunder in
accordance with the terms thereof or which could excuse any such party from
liability for non-performance thereunder.

                (g) Officers' Certificates. The Administrative Agent shall have
received certificates signed by the president and chief financial officer (or
the equivalent) of Borrower confirming compliance with the conditions set forth
in paragraphs (a) through (f) of this Section 5.2 (each such certificate to be
delivered in such Person's corporate, not individual, capacity).

                (h) Other Fees, Costs and Expenses. Borrower shall have paid all
fees and expenses due to any Lender, the Collateral Agent or the Administrative
Agent (including all reasonable fees and expenses of legal counsel for any of
the foregoing), on or before the date of such Loan, or arrangements satisfactory
to such Lender, the Collateral Agent or the Administrative Agent, shall have
been made for the payment of such fees and expenses from the proceeds of the
Borrowing of Loans on such date.

                                       33
<PAGE>   38

                (i) Stamp Duties; Taxes; Etc. The Administrative Agent and
Lenders shall have received evidence satisfactory to them that all required
stamp duties, registration fees, filing costs and other charges in connection
with the execution, delivery, filing and/or perfection of any Loan Document
required to be stamped, registered or filed have been paid in full or an
appropriate exemption therefrom shall have been obtained, except to the extent
that Borrower has provided the Administrative Agent, the Collateral Agent and
Lenders with assurances satisfactory to them that such duties, fees, costs and
charges will be paid in full with the proceeds of such Loans.

                (j) Lien, Judgement and Tax Searches. The Administrative Agent
shall have received copies of financing statements under the Uniform Commercial
Code (and copies of Uniform Commercial Code search reports and tax lien,
judgment and litigation search reports) with respect to Borrower in each
jurisdiction in which financing statements are necessary or, in the opinion of
the Administrative Agent, desirable to perfect the Liens created under the
Pledge, and all other instruments to be recorded or filed or delivered in
connection with the Loan Documents.

                Each Borrowing shall be deemed to constitute a representation
and warranty on the date thereof by Borrower as to the matters specified in
paragraphs (a) through (f) and paragraph (i) of this Section 5.2.

ARTICLE 6. REPRESENTATIONS, WARRANTIES AND AGREEMENTS.

                The representations and warranties contained herein shall
survive the execution and delivery of this Agreement. To the extent that any
schedule referred to in this Section 6 shall need to be updated after the
Closing Date in order to permit such representation to be true and correct in
all material respects when made or deemed made, Borrower shall provide the
Administrative Agent with such updated schedule in writing prior to the date
such representation is made or deemed made and shall request approval of such
updated schedule from the Required Lenders. Unless any such schedule is updated
and approved by the Required Lenders, no change to any existing schedule shall
be deemed to have been made. Borrower represents and warrants, as of the
Effective Date and as of the date of each Borrowing to the Administrative Agent
and each Lender as follows:

        6.1 Organization; Powers. Borrower and each of its Relevant Subsidiaries
is duly organized, validly existing and in good standing under the laws of the
jurisdiction of its organization, has all requisite power and authority to carry
on its business as now conducted and, except where the failure to do so,
individually or in the aggregate, would not reasonably be expected to result in
a Material Adverse Effect, is qualified to do business in, and is in good
standing in, every jurisdiction where such qualification is required.

        6.2 Corporate Power and Authority. The execution, delivery and
performance by Borrower of the Loan Documents to which it is a party, the
borrowing of Loans and the use of the proceeds thereof have been duly authorized
by all necessary corporate and, if required, stockholder action. Borrower has
taken all corporate action necessary to authorize the execution, delivery and
performance by it of each of such Loan Documents as have been executed and
delivered as of each date this representation and warranty is made or deemed
made. Borrower

                                       34
<PAGE>   39

has, or in the case of the Loan Documents other than this Agreement by the
Closing Date will have, duly executed and delivered each of the Loan Documents.

        6.3 Approvals. Except for various notices by QUALCOMM and Borrower
required in connection with the transfer and use of the ADV, and except for the
approval and consent of the FCC to the pro forma transfer of the requisite
License(s) to the License Subsidiaries pursuant to Section 7.6(a), no
Governmental Approvals are required to be obtained or accomplished for (a) the
execution, delivery or performance by Borrower of this Agreement or any other
Loan Document to which it is a party, (b) the validity and enforceability of
this Agreement or the other Loan Documents in accordance with their respective
terms (subject to any Applicable Laws of the FCC regulating transfer or control
of Capital Stock in License Subsidiaries), (c) the continued validity of the
Liens evidenced by the Pledge, or (d) Lenders under this Agreement to be deemed
Secured Parties, except for Governmental Approvals that, in each case, have been
obtained by Borrower. Each of such Governmental Approvals has been duly obtained
or made, is validly issued, is in full force and effect, and is held in the name
of Borrower or one of its Relevant Subsidiaries and is free from any condition
or requirement compliance with which would reasonably be expected to result in a
Material Adverse Effect or which Borrower does not reasonably expect to be able
to satisfy in a timely manner.

        6.4 Valid and Binding Obligation. This Agreement when executed and
delivered by Borrower on or before the date this representation is made or
deemed made, constitutes, or, in the case of each other Loan Document to which
it is a party, when executed and delivered by it, will constitute, the legal,
valid and binding obligation of Borrower enforceable in accordance with its
terms, except as the enforceability thereof may be limited by (i) applicable
bankruptcy, insolvency and other similar laws affecting creditors' rights
generally and (ii) general equitable principles regardless of whether the issue
of enforceability is considered in a proceeding in equity or at law.

        6.5 No Violation. None of the execution and delivery by Borrower of this
Agreement and the other Loan Documents to which it is party, the consummation of
the transactions contemplated hereby and thereby or compliance with the terms
and provisions hereof and thereof does or will (i) contravene or violate its
Charter Documents, (ii) contravene or violate any Applicable Law or contravene
or result in any breach or constitute any default under any order, writ,
injunction, judgment or decree of any court or other tribunal or Governmental
Authority, (iii) contravene or result in any breach or constitute any default
under, or result in or require the creation of any Lien upon any of its
revenues, properties or assets under, any agreement or instrument to which it is
a party or by which it or any of its revenues, properties or assets may be
bound, except for Permitted Liens, or (iv) require any Governmental Approval of
any Person other than any such Governmental Approvals that have been obtained
and are in full force and effect; except, in the case of clauses (ii), (iii) and
(iv) above, for any such contraventions, breaches, defaults, Liens or failure to
obtain Governmental Approvals that have not resulted in, or would not reasonably
be expected to result in, a Material Adverse Effect.

        6.6 Financial Statements. Each of the financial statements of Borrower
delivered pursuant to Section 5.1(h) fairly presents, in all material respects,
the financial position, results of operations and cash flows of Borrower as of
the dates thereof and for the periods covered thereby, as applicable, in
accordance with GAAP on a consistent basis except as may otherwise

                                       35
<PAGE>   40

be noted therein (and, in the case of the unaudited quarterly financial
statements, subject further to (i) year-end audit adjustments and (ii) the
absence of appropriate footnotes that would be included in audited financial
statements).

        6.7 Litigation; Labor Disputes.

                (a) Borrower and each of its Relevant Subsidiaries is not in
default with respect to any order of any court, arbitrator, administrative
agency or other Governmental Authority, other than any order that is the subject
of a Good Faith Contest or other order the default under which, or the
non-compliance with which, has not resulted in, and would not reasonably be
expected to result in, a Material Adverse Effect. There is no injunction, writ
or preliminary restraining order of any nature issued by an arbitrator, court or
other Governmental Authority directing that any of the transactions provided for
in any of the Loan Documents not be consummated as herein or therein provided.
Except as set forth on Schedule 6.7, there is no action, suit, investigation or
proceeding (including any appeal by any Person of a Governmental Approval) by or
before any court, arbitrator, administrative agency or other Governmental
Authority pending or, to the best knowledge of Borrower, threatened against or
affecting Borrower or any of its Relevant Subsidiaries (or any of its
properties, revenues or assets) which has resulted in, or would reasonably be
expected to result in, a Material Adverse Effect.

                (b) There is no labor strike, request for representation,
slowdown or stoppage actually pending or, to the best knowledge of Borrower,
threatened against or affecting it or any of its Relevant Subsidiaries which has
resulted in, or would reasonably be expected to result in, a Material Adverse
Effect.

        6.8 Tax Returns and Payments. Borrower and each of its Relevant
Subsidiaries has timely filed or caused to be filed all income tax and other
material Tax Returns required by Applicable Law to be filed by it and has paid
all Taxes and assessments payable by it, which have become due, other than those
subject to a Good Faith Contest or for which the failure to file or pay has not
resulted in, and would not reasonably be expected to result in, a Material
Adverse Effect.

        6.9 Compliance with Applicable Law. Borrower and each of its Relevant
Subsidiaries is in compliance in all respects with all Applicable Law (including
Environmental Law), except to the extent that such failure to be in compliance
has not resulted in, and would not reasonably be expected to result in, a
Material Adverse Effect.

        6.10 Investment Company Act. None of Borrower or any of its Relevant
Subsidiaries is an "investment company" or a company "controlled" by an
"investment company," within the meaning of the Investment Company Act of 1940.

        6.11 PUHCA. None of Borrower nor any of its Relevant Subsidiaries is
subject to regulation as a "holding company" or an "affiliate" of a "holding
company" or a "subsidiary company" of a "holding company" or a "public utility
company", within the meaning of PUHCA, nor subject to regulation under PUHCA
except pursuant to Section 9(a)(2) of PUHCA.

        6.12 Liens. Except for Permitted Liens, there are no Liens securing any
Indebtedness or other obligations of any Person covering any present or future
revenues, properties or assets of

                                       36
<PAGE>   41

Borrower. Neither Borrower nor any of its License Subsidiaries (and, if pledged
pursuant to Section 5.1(n), LEAP Mexico) has outstanding any Lien or obligation
to create any Lien on or with respect to any of its properties, revenues or
assets, other than (except as to collateral subject to the Pledge) Permitted
Liens or (except as to Capital Stock) minor defects in title that do not
materially interfere with their respective abilities to conduct their businesses
as currently conducted or to utilize such properties, revenues and assets for
their intended purposes.

        6.13 Title.

                  (a) Borrower holds good and legal title to all property,
assets and revenues on which it purports to grant Liens pursuant to the Pledge,
in all cases free and clear of all Liens except as expressly permitted by the
Pledge.

                  (b) Subject to any applicable laws, rules and regulations of
the FCC, the provisions of the Pledge are effective to create in favor of the
Secured Parties a legal, valid and enforceable first priority Lien on all of the
property, assets and revenues described therein and all necessary and
appropriate recordings, registrations and filings have been made in all
appropriate public offices, and all other necessary and appropriate action has
been taken so that the Pledge creates an effective Lien with respect to the
property, assets, contract rights and revenues covered thereby, prior and
superior to all other Liens except as expressly permitted by the Pledge.

        6.14 Property Rights. Borrower and each of its Relevant Subsidiaries
owns, has a license to use or otherwise has the right to use, free and clear of
any pending or threatened Liens (other than Permitted Liens), all property
rights (real, personal, mixed, tangible or intangible) including all patents,
patent applications, trademarks, permits, service marks, names, trade secrets,
proprietary information and knowledge, technology, computer programs, databases,
copyrights, licenses, franchises and formulas, or rights with respect thereto,
and has obtained assignments of all leases and other rights of whatever nature,
in each case, that are material to the conduct of Borrower's or such Relevant
Subsidiary's business presently being conducted, without any conflict with the
rights of others as of the date such property rights are necessary to operate
and maintain its business; provided, however, that no inaccuracy in the
statements set forth in this Section 6.14 shall constitute a breach of the
representations and warranties contained herein, unless such inaccuracy has
resulted in, or would reasonably be expected to result in, a Material Adverse
Effect.

        6.15 Relevant Documents. The Administrative Agent and Lenders have
received a true, complete and correct copy of each Relevant Document in effect
as of the date this representation is made or deemed made. Each such Relevant
Document is in full force and effect and has not been amended, modified or
terminated, except as previously disclosed in writing to the Administrative
Agent and in accordance with the terms hereof and thereof.

        6.16 Environmental Matters.

               (a) Except as set forth on Schedule 6.16, (i) neither Borrower
nor any of its Relevant Subsidiaries is in violation of any Environmental Law
which violation has resulted in, or would reasonably be expected to result in, a
Material Adverse Effect, (ii) neither Borrower,

                                       37
<PAGE>   42

nor to the best knowledge of Borrower, any third party, has used, released,
discharged, generated, stored, or disposed of in, on, under, or about any real
property owned or leased by Borrower or transported thereto or therefrom any
Hazardous Material in a manner that would reasonably be expected to subject
Borrower to any Environmental Claim that would reasonably be expected to result
in a Material Adverse Effect, or subject the Administrative Agent or any Lender
to any liability under any Environmental Law or to any Environmental Claim, and
(iii) to the best knowledge of Borrower, there are no Hazardous Materials used,
stored, or present at, on or near any real property owned or leased by Borrower
or any of its Relevant Subsidiaries in violation of Applicable Law or which have
resulted in, or would reasonably be expected to result in, a Material Adverse
Effect.

                  (b) Except as set forth in Schedule 6.16, there is no
proceeding and, to the best knowledge of Borrower, no investigation or
threatened investigation by any Governmental Authority or any other Person with
respect to the alleged presence or release of Hazardous Materials in, on, from
or to any real property owned or leased by Borrower or any of its Relevant
Subsidiaries which has resulted in, or would reasonably be expected to result
in, a Material Adverse Effect, nor, as of the Closing Date, has Borrower
received notice of any pending or threatened Environmental Claim, and, as of the
Closing Date, Borrower knows of no reasonable basis for any Environmental Claim.

        6.17 True and Complete Disclosure. No information, report, financial
statement or schedule furnished by or on behalf of Borrower to the
Administrative Agent or any Lender in connection with the negotiation of any
Loan Document or included therein or delivered pursuant thereto contained any
material misstatement of fact or omitted to state any material fact necessary to
make the statements therein, as of the date of such statements and in light of
the circumstances under which they were made, not misleading; provided that to
the extent any such information, report, financial statement or schedule was
based upon, or constitutes, a forecast, projection or expression of opinion,
Borrower represents only that it acted in good faith and utilized reasonable
assumptions and due care in the preparation of such information, report,
financial statement or schedule.

        6.18 Use of Proceeds. The proceeds of the Loans shall be used solely for
the purpose described in Section 2.1(b). No part of the proceeds of any Loan
will be used for the purpose, whether immediate, incidental or ultimate, of
buying or carrying any "margin stock" (as defined in Regulation U) or to extend
credit to others for such purpose. No part of the proceeds of any Loan will be
used, whether directly or indirectly, and whether immediately, incidentally or
ultimately, for any purpose which entails a violation of, or which is
inconsistent with Regulations U or X promulgated by the Board of Governors of
the Federal Reserve System (12 C.F.R. Sections 220, 221 and 224, respectively).

        6.19 No Subordination. Borrower Obligations (i) are not subordinated in
right of payment to any other obligation of Borrower and (ii) will at all times
rank prior to or pari passu in right of payment with all present and future
unsecured senior Indebtedness of Borrower (including Indebtedness of Borrower
under the Indenture) except to the extent provided by law.

        6.20 ERISA. No ERISA Event has occurred or is reasonably expected to
occur that, when taken together with all other such ERISA Events for which
liability is reasonably expected

                                       38
<PAGE>   43

to occur, would reasonably be expected to result in a Material Adverse Effect.
The present value of all accumulated benefit obligations under each Plan (based
on the assumptions used for purposes of Statement of Financial Accounting
Standards No. 87) did not, as of the date of the most recent financial
statements reflecting such amounts, exceed by more than $1,000,000 the fair
market value of the assets of such Plan, and the present value of all
accumulated benefit obligations of all underfunded Plans (based on the
assumptions used for purposes of Statement of Financial Accounting Standards No.
87) did not, as of the date of the most recent financial statements reflecting
such amounts, exceed by more than $5,000,000 the fair market value of the assets
of all such underfunded Plans.

        6.21 Indebtedness. Schedule 6.21 is a complete and correct list of all
Indebtedness involving $1,000,000 or more in respect of which Borrower or any of
its Subsidiaries is in any manner directly or contingently obligated. The
maximum principal or face amounts of such Indebtedness which is outstanding and
which can be outstanding, are correctly stated, and all Liens of any nature
given or agreed to be given as security therefor are correctly described or
indicated in such Schedule 6.21.

        6.22 Usury Exemption. The indebtedness under the Loans is exempt from
the usury laws of California pursuant to California Corporations Code Section
25117(a)(2)(A).

ARTICLE 7. COVENANTS.

               Borrower covenants and agrees that so long as any Lender has any
Commitment hereunder or any amount payable under this Agreement or any other
Loan Document remains unpaid, that:

        7.1 Covenants of Borrower under the Indenture. Borrower shall observe
and perform each of the covenants and agreements set forth in Articles Four and
Five of the Indenture, as in effect on the Effective Date and regardless of
whether the Indenture is subsequently amended, modified, supplemented,
discharged or terminated (other than restrictions on the rights of Restricted
Subsidiaries (as defined in the Indenture), but excluding License Subsidiaries,
to guarantee obligations of Cricket Communications), and such covenants and
agreements are incorporated by reference into this Agreement, mutatis mutandis,
for the benefit of the Administrative Agent, the Collateral Agent and each
Lender.

        7.2 Information Covenants. Borrower shall furnish to the Administrative
Agent and QUALCOMM:

               (a) Description of License(s). Immediately upon Borrower or any
of its Relevant Subsidiaries obtaining a License, a description of such License,
such description to include (i) the date such License was awarded to Borrower or
any of its Relevant Subsidiaries, (ii) the registered holder of such License
(whether Borrower or one of its Relevant Subsidiaries), (iii) the value of the
Total License Bid with respect to such License, and (iv) the spectrum block of
such License and the "basic trading area" covered by such License.

               (b) Business Plan. If requested by a Lender, Borrower shall
deliver to such Lender within 30 days after the date when the FCC releases a
public notice declaring that the bidding in FCC Auction No. 35 is closed and
within 30 days after the end of each fiscal year of

                                       39
<PAGE>   44

Cricket Communications and its Subsidiaries thereafter, the Business Plan of
Cricket Communications and its Subsidiaries for the then current fiscal year and
updated financial projections, in each case as, and to the extent, required
under the Vendor Credit Agreements.

               (c) Notice of Certain Occurrences, Etc. Promptly, but in all
cases within five (5) Business Days after any Authorized Officer of Borrower
obtains knowledge thereof, written notice of (i) any event which constitutes a
Default or Event of Default, specifying the nature of such Default or Event of
Default and any steps Borrower is taking and proposes to take to remedy the
same, (ii) any litigation, arbitration or governmental proceeding pending or
threatened by or against Borrower or any of its License Subsidiaries with
respect to the ADV, FCC Auction No. 35 or any License acquired in FCC Auction
No. 35 or that is the subject of any bid in FCC Auction No. 35 or (iii) any
event, condition or circumstance that could reasonably be expected to require
Borrower to prepay any Loans under Section 2.11.

               (d) ERISA. Prompt written notice of the occurrence of any ERISA
Event that, alone or together with any other ERISA Events that have occurred,
could reasonably be expected to result in liability of Borrower and its
Subsidiaries in an aggregate amount exceeding $1,000,000.

        7.3 Books and Records; Inspection Rights. Borrower shall keep books of
record and accounts which contain, in all material respects, accounting entries
made in accordance with GAAP which fairly present, in all material respects, all
dealings and transactions in relation to the business and activities of Borrower
and its Relevant Subsidiaries. Borrower shall permit any representatives
designated by the Administrative Agent or any Lender, upon reasonable prior
notice, to visit and inspect its properties, to examine and make extracts from
its books and records, and to discuss its affairs, finances and condition with
its officers, all at such reasonable times and as often as reasonably requested.

        7.4 Use of Proceeds. Borrower shall use the proceeds of the Loans solely
for its intended purposes as described in Section 2.1(b).

        7.5 Compliance with Terms of the ADV and the Order. Borrower, as
assignee of the ADV or a portion thereof under one or more ADV Assignments and
Acceptances, (a) shall comply in all material respects with all terms and
conditions of the ADV, the Order, the Auction No. 35 Public Notice, the FCC
Letters and any other Applicable Laws governing the ADV and FCC Auction No. 35;
(b) shall obtain and maintain, or cause to be obtained and maintained, any and
all Governmental Approvals by or with any Governmental Authority that are
required to be obtained or maintained under the terms and conditions of each
License, the ADV, the Order, the Auction No. 35 Public Notice, the FCC Letters
and any other Applicable Laws governing the ADV and FCC Auction No. 35; (c)
shall notify the FCC (with a copy to QUALCOMM) in accordance with the FCC
Letters of its intent to use the ADV or any portion thereof at least two (2)
Business Days prior to its intended use, and (d) shall, at all times before the
close of FCC Auction No. 35, give sufficient notice to QUALCOMM and the
Administrative Agent in order to enable QUALCOMM to make ADV Loans to Borrower
pursuant to this Agreement in compliance with the Order, the FCC Letters and the
Auction No. 35 Public Notice.

                                       40
<PAGE>   45

        7.6 Transfer of Licenses.

               (a) From and after the grant of any License to Borrower by the
FCC and for so long as any Borrower Obligations remain outstanding, Borrower
shall cause one or more Licenses with aggregate Total License Bids in an amount
greater than or equal to 150% of the aggregate amount of the total Exposures of
all Lenders to be transferred to, and retained by, one or more of Borrower's
Wholly-Owned Subsidiaries in accordance with this Section 7.6(a) (such transfers
to be made in such order as such Licenses are granted to Borrower). The Capital
Stock of such Subsidiaries shall be pledged by Borrower in favor of the Secured
Parties pursuant to the Pledge (each such Wholly-Owned Subsidiary, a "License
Subsidiary," provided that, notwithstanding anything to the contrary contained
in this Agreement or any other Loan Document, each License Subsidiary shall be,
and, for as long as it remains a License Subsidiary, shall remain, a
corporation). Within five (5) calendar days following the grant of each License
that is required to be transferred to a License Subsidiary, Borrower shall, to
the extent required by the FCC or otherwise by Applicable Law, prepare and file
with the FCC an application on Form 603 (or other appropriate form) seeking the
FCC's consent to the pro forma transfer of such License to a License Subsidiary.
Within three (3) Business Days following its receipt of the FCC's consent to
such pro forma transfer (if such prior consent of the FCC is required under
Applicable Law) Borrower shall transfer such License to such License Subsidiary
and Borrower shall use its best efforts to effect such transfer at the earliest
practicable time. If no prior consent of the FCC to transfer of such License to
a License Subsidiary is required under Applicable Law, Borrower shall transfer
such License to a License Subsidiary within five (5) Business Days of the grant
of such License. Within five (5) Business Days of the transfer of such License
to a License Subsidiary pursuant to this Section 7.6(a) and as to which the
Administrative Agent has not previously received a satisfactory legal opinion,
the Administrative Agent and Lenders shall have received a favorable written
opinion (addressed to the Administrative Agent and Lenders and dated as of such
date) of Messrs. Latham and Watkins, special New York and California counsel to
Borrower, or of other legal counsel reasonably acceptable to the Administrative
Agent and the Lenders, each dated on or before such date and otherwise in form
and substance acceptable to the Administrative Agent and the Lenders, covering
such matters relating to such transfer (including, without limitation, as to the
first priority perfected Lien of the Collateral Agent on the Capital Stock of
such License Subsidiary) as the Administrative Agent or any Lender may
reasonably request.

               (b) Notwithstanding any provision of this Agreement or the Pledge
to the contrary, if at any time and from time to time the aggregate amount of
the Total License Bids for the Licenses then held by the License Subsidiaries
exceeds 150% of the aggregate amount of the then total Exposures of all Lenders,
whether as a result of an optional prepayment, mandatory prepayment or
otherwise, then Borrower may, in its sole discretion, cause the License
Subsidiaries to transfer one or more Licenses to a Person that is not a License
Subsidiary, but only if and to the extent that, immediately after giving effect
to any such transfers, the aggregate amount of the Total License Bids for the
remaining Licenses then held by the License Subsidiaries exceeds 150% of the
aggregate amount of the then total Exposures of all Lenders under the Facility.
Any such transferee of a License shall not be deemed a License Subsidiary by
virtue of such transfer. If any License Subsidiary shall transfer all of its
Licenses in accordance with this Section 7.6, such entity shall thereafter cease
to be a License Subsidiary.

                                       41
<PAGE>   46

               (c) It shall be a condition to any transfer of any Licenses
described in Section 7.6(b) that Borrower and the transferring License
Subsidiary deliver an Officer's Certificate of Borrower and delivered to the
Administrative Agent and QUALCOMM, indicating:

                      (i) the License(s) proposed to be transferred;

                      (ii) the Total License Bids attributable thereto
        (including the Net Winning Bid applicable to each such License and the
        portion of the ADV Loans attributable to each License held by the
        License Subsidiary immediately after giving effect to such transfer);
        and

                      (iii) the percentage amount that is derived by dividing
        (1) the aggregate amount of the Total License Bids for the remaining
        Licenses to be held by the License Subsidiaries immediately after giving
        effect to any such transfer by (2) the total Exposures of all Lenders
        under the Facility at such time.

               (d) A junior Lien on the Capital Stock of a License Subsidiary
may be granted to the creditors under a Vendor Credit Agreement or their duly
appointed agent, subject, in each case, to the due execution of a subordination
agreement, by Borrower, such License Subsidiary, each such creditor or agent
thereof, the Administrative Agent and the Collateral Agent, in form, scope and
substance satisfactory to the Administrative Agent and the Required Lenders, and
delivery of a counterpart thereof to the Administrative Agent. In connection
with the granting of any such Lien, the Lenders, the Administrative Agent and
the Collateral Agent (i) shall take such steps as said creditors reasonably may
request in order to facilitate the perfection of such junior Lien in favor of
such creditors, and (ii) shall enter into an agreement in form and substance
reasonably satisfactory to such parties of the type contemplated in clause (d)
of the definition of "Permitted License Acquisition Debt" set forth in the
Vendor Credit Agreements (as in effect on the Effective Date).

        7.7 Waiver of Stay, Extension or Usury Laws. Borrower covenants (to the
extent that it may lawfully do so) that it shall not at any time insist upon,
plead, or in any manner whatsoever claim or take the benefit or advantage of,
any stay or extension law or any usury law or other law, which would prohibit or
forgive Borrower from paying all or any portion of the principal of and/or
interest, if any, on the Loans as contemplated herein, wherever enacted, now or
at any time hereafter in force, or which may affect the covenants or the
performance of this Agreement or any other Loan Document; and (to the extent
that it may lawfully do so) Borrower hereby expressly waives all benefit or
advantage of any such law, and covenants that it shall not hinder, delay or
impede the execution of any power granted to the Administrative Agent or the
Collateral Agent herein or in any other Loan Document, but shall suffer and
permit the execution of every such power as though no such law had been enacted.

        7.8 Use of Loans. Borrower covenants hereby to utilize the Facility in
full to pay Net Winning Bids for the Licenses before using its own cash
resources or other sources of funding.

                                       42
<PAGE>   47

ARTICLE 8. EVENTS OF DEFAULT.

        8.1 Events of Default. The occurrence of any one or more of the
following events shall constitute an Event of Default:

               (a) Payments. A failure by Borrower to pay (whether at maturity,
by acceleration or otherwise) the following amounts:

                      (i) any principal of any Loan when due; or

                      (ii) any interest on any Loan, any other amounts owing
        hereunder or under any other Loan Document or any other amounts
        constituting Borrower Obligations within three (3) Business Days after
        such interest or other amount first becomes due.

               (b) Representations. Any representation or warranty made by
Borrower herein or in any other Loan Document or any representation, warranty or
statement in any certificate, financial statement or other document furnished to
the Administrative Agent or any Lender by or on behalf of Borrower hereunder or
under any other Loan Document shall prove to have been false or misleading in
any material respect as of the time made, deemed made, confirmed or furnished.

               (c) Covenants.

                      (i) Borrower shall fail to observe or perform any of the
        covenants contained in Section 7.1 (but only to the extent of a failure
        to observe or perform those covenants set forth in Article 5 of the
        Indenture or Borrower's failure to make or consummate an Offer to
        Purchase (as defined in the Indenture) in accordance with Section 4.05
        or Section 4.14 of the Indenture (as in effect on the Effective Date)),
        Section 7.4 or Section 7.6(a) of this Agreement or shall fail to
        transfer to a License Subsidiary within 120 days of the grant thereof by
        the FCC, any License required to be transferred to a License Subsidiary
        by Section 7.6(a).

                      (ii) Borrower shall default in the due performance or
        observance by it of any term, covenant or agreement contained herein or
        in any other Loan Document (except as otherwise provided in Section
        8.1(a) and Section 8.1(c)(i)), and such default shall continue
        unremedied for a period of thirty (30) days after the earlier of the
        date on which written notice thereof shall have been received by
        Borrower from the Administrative Agent or the date on which Borrower has
        acquired knowledge of the same.

               (d) Acceleration Under Other Agreements. Borrower or Holdings (i)
shall default in the observance or performance of any agreement or condition
relating to any Indebtedness, the outstanding principal amount of which
(individually or in the aggregate) exceeds $5,000,000, or (ii) any other event
or condition shall have occurred under any such Indebtedness, in either case the
effect of which default or other event or condition is to cause any such
Indebtedness to become due prior to its stated maturity, or any such
Indebtedness of Borrower shall be declared due and payable prior to the stated
maturity thereof.

                                       43
<PAGE>   48

               (e) Involuntary Bankruptcy, Etc. An involuntary proceeding shall
have been commenced against Borrower or Holdings seeking that Borrower or
Holdings be wound up or liquidated, adjudging Borrower or Holdings bankrupt or
insolvent or seeking reorganization, arrangement, adjustment or composition of
or in respect of Borrower or Holdings under any Applicable Law or seeking the
appointment of a receiver, liquidator, intervenor, assignee, trustee or other
similar official of Borrower or Holdings or of any substantial part of its
property or other assets, or the winding up or liquidation of its affairs, and
such proceeding continues undismissed for 60 days.

               (f) Voluntary Bankruptcy, Etc. The institution by either of
Borrower or Holdings of proceedings to be adjudicated bankrupt or insolvent, or
the consent by it to the institution of bankruptcy or insolvency proceedings
against it; or the filing by it of a petition or answer or consent seeking
reorganization or debt relief under any Applicable Law or to the appointment of
a receiver, liquidator, intervenor, assignee, trustee or other similar official
of it of any substantial part of its property; or the making by it of an
assignment for the benefit of creditors generally; or the admission by it in
writing of its inability to pay its debts generally as they become due; or any
action is taken by Borrower or Holdings for the purpose of effecting any of the
foregoing.

               (g) Analogous Proceedings. There occurs, in relation to Borrower
or Holdings, in any country or territory in which it carries on business or to
the jurisdiction of whose courts any part of its assets is subject, any event
which in that country or territory corresponds with, or has an effect equivalent
or similar to, any of those mentioned in Section 8.1(e) or (f).

               (h) Attachment of Assets. Any Person attaches or institutes
proceedings to attach all or any part of the assets of Borrower or Holdings
(which assets shall have a value in excess of $5,000,000), and any attachment or
any judgment Lien against any such assets (i) remains unlifted, unstayed or
undischarged for a period of sixty (60) days or (ii) is upheld in a final
non-appealable judgment of a court of competent jurisdiction.

               (i) Loan Documents.

                      (i) This Agreement, any of the other Loan Documents or any
        material provision hereof or thereof is or becomes invalid, illegal or
        unenforceable or Borrower or any of its Affiliates shall have repudiated
        or disavowed or taken any action to challenge the validity or
        enforceability of any such agreement.

                      (ii) At any time, the Pledge shall fail to provide the
        Liens, security interests, rights, titles, interests, remedies, powers
        or privileges intended to be created thereby (including the priority
        intended to be created thereby), or such Lien shall fail to have the
        priority contemplated therefor in the Pledge, or such Pledge shall cease
        to be in full force and effect, or the validity thereof or the
        applicability thereof to any obligations purported to be secured or
        guaranteed thereby or any part thereof, shall be disaffirmed in writing
        by or on behalf of Borrower or any of its Affiliates.

                                       44
<PAGE>   49

                      (iii) If within twenty (20) days after receipt of notice
        thereof from the Administrative Agent, Borrower fails to defend the
        Administrative Agent, the Collateral Agent or Lender(s) from any
        actions, judgements or suits asserted by any Person against the
        Administrative Agent, the Collateral Agent or Lender(s) in connection
        with the Liens, security interests, rights, titles, interests, remedies,
        powers or privileges created by the Pledge (including the priority
        intended to be created thereby).

               (j) Title. Subject to Liens expressly permitted to exist thereon
under the Pledge, Borrower shall cease to have good and legal title to any
portion of its property, assets and revenues on which it purports to grant Liens
pursuant to the Pledge.

               (k) Judgments. One or more judgments or decrees exceeding
$5,000,000 (except to the extent any applicable insurer(s) shall have
acknowledged liability therefor) shall be entered against Borrower or Holdings
and such judgments or decrees shall not be paid within thirty (30) days, or
shall not be vacated, discharged or stayed or bonded (to the reasonable
satisfaction of the Administrative Agent) pending appeal for any period of
thirty (30) consecutive days.

               (l) Licenses. Wireless licenses covering at least fifty percent
(50%) or more of the total potential customers covered by all of the wireless
licenses of Borrower and its Subsidiaries (the "Minimum Licenses") shall not be
renewed or shall be rescinded, terminated, suspended or determined to be invalid
or shall cease to be in full force and effect.

               (m) The Indenture. An "Event of Default" (as such term is defined
in the Indenture) shall have occurred and be continuing under the Indenture, as
in effect on the Effective Date, and regardless of whether such "Event of
Default" shall have been waived pursuant to the Indenture and regardless of
whether the Indenture is subsequently amended, modified, supplemented,
discharged or terminated.

               (n) ERISA. An ERISA Event shall have occurred that when taken
together with all other ERISA Events that have occurred, has resulted in, or
would reasonably be expected to result in liability of Borrower and its
Subsidiaries in an aggregate amount exceeding (i) $1,000,000 in any year or (ii)
$5,000,000 for all periods.

        8.2 Remedies. Upon the occurrence and during the continuation of an
Event of Default, the Administrative Agent may, and if directed by the Required
Lenders in accordance with Section 8.3 shall, exercise any or all rights and
remedies at law or in equity (in any combination or order that the
Administrative Agent may elect) and, without limitation or prejudice to the
foregoing, at any time thereafter during the continuance of such event, the
Administrative Agent may, and if directed (except for any Event of Default with
respect to Borrower as described in Section 8.1(e), (f) or (g)) by the Required
Lenders in accordance with Section 8.3 shall, by notice to Borrower, take either
or both of the following actions, at the same or different times: (i) terminate
the Commitments, and thereupon the Commitments shall terminate immediately, and
(ii) declare the Loans then outstanding to be due and payable in whole (or in
part, in which case any principal not so declared to be due and payable may
thereafter be declared to be due and payable), and thereupon the principal of
the Loans so declared to be due and payable, together with accrued interest
thereon and all fees accrued

                                       45
<PAGE>   50

hereunder and other Borrower Obligations, shall become due and payable
immediately, without presentment, demand, protest or other notice of any kind,
all of which are hereby waived by Borrower; and in case of any event with
respect to Borrower described in Section 8.1(e), (f) or (g), the Commitments
shall automatically terminate and the principal of the Loans then outstanding,
together with accrued interest thereon and all fees accrued hereunder and other
Borrower Obligations, shall automatically become due and payable, without
presentment, demand, protest or other notice of any kind, all of which are
hereby waived by Borrower.

        8.3 Exercise of Remedies. In taking or omitting to take any action, or
exercising any right or remedy under Section 8.2 upon an Event of Default, the
Administrative Agent may take such actions or exercise such rights or remedies
as it deems prudent under the circumstances and, in any event, shall comply with
the directions of the Required Lenders.

ARTICLE 9. AGENTS.

        9.1 Appointment. Each Lender hereby irrevocably appoints each Agent as
its agent and authorizes each Agent to take such actions on its behalf and to
exercise such powers as are delegated to such Agent by the terms hereof and of
any other Loan Document, together with such actions and powers as are reasonably
incidental thereto.

        9.2 Rights and Powers as Lender. Any Person serving as an Agent
hereunder or under any other Loan Document shall have the same rights and powers
in its capacity as a Lender as any other Lender and may exercise the same as
though it were not an Agent, and such Person and its Affiliates may accept
deposits from, lend money to, act as trustee under indentures of, and generally
engage in any kind of business with Borrower or any Subsidiary or other
Affiliate of Borrower and any Person who may do business with or own securities
of Borrower or any Subsidiary or Affiliate of Borrower, all as if such Person
were not an Agent and without any duty to account therefor to Lenders or any
other Person.

        9.3 Delegation of Duties. Each Agent may perform any and all of its
duties and exercise its rights and powers by or through any one or more
sub-agents appointed by such Agent. Each Agent and any such sub-agent may
perform any and all its duties and exercise its rights and powers through their
respective Related Parties. The exculpatory provisions of this Article 9 shall
apply to any such sub-agent and to the Related Parties of each Agent and any
such sub-agent, and shall apply to their respective activities in connection
with the syndication of the credit facilities provided for herein as well as
activities as Agent.

        9.4 Liability. Neither Agent shall have any duties or obligations except
those expressly set forth herein and in the other Loan Documents, and no implied
covenants or obligations shall be read into this Agreement or the other Loan
Documents to which it or any of its Affiliates is a party. Without limiting the
generality of the foregoing (a) neither Agent shall be subject to any fiduciary
or other implied duties, regardless of whether a Default or Event of Default has
occurred and is continuing, (b) neither Agent shall have any right or duty to
take any discretionary action or exercise any discretionary powers, except
discretionary rights and powers expressly contemplated hereby and by the other
Loan Documents that such Agent is required to exercise in writing by the
Required Lenders and (c) except as expressly set forth herein and in the other
Loan Documents, neither Agent shall have any duty to disclose, and shall not be
liable

                                       46
<PAGE>   51

for the failure to disclose, any information relating to Borrower or any of its
Subsidiaries or Affiliates that is communicated to or obtained by the Person
serving as such Agent or any of its Affiliates in any capacity. Neither Agent
shall be liable for any action taken or not taken by it with the consent or at
the request of the Required Lenders, as the case may be, or in the absence of
its own gross negligence or willful misconduct. Neither Agent shall be deemed to
have knowledge of any Default or Event of Default unless and until written
notice thereof is given to such Agent by Borrower or a Lender, and neither Agent
shall be responsible for or have any duty to ascertain or inquire into (i) any
statement, warranty or representation made in or in connection with this
Agreement or any other Loan Document, (ii) the contents of any certificate,
report or other document delivered hereunder or thereunder or in connection
herewith or therewith, (iii) the performance or observance of any of the
covenants, agreements or other terms or conditions set forth herein or therein,
(iv) the validity, enforceability, effectiveness or genuineness of this
Agreement or any other Loan Document or any other agreement, instrument or
document, or (v) the satisfaction of any condition set forth in Article 5 or
elsewhere herein, other than to confirm receipt of items expressly required to
be delivered to either Agent under this Agreement or any other Loan Document.

        9.5 Reliance. Each Agent shall be entitled to rely upon, and shall not
incur any liability for relying upon, any written notice, instruction,
direction, request, certificate, consent, statement, instrument, document or
other writing believed by it to be genuine and to have been signed or sent by
the proper Person. Each Agent also may rely upon any statement made to it orally
or by telephone and believed by it to be made by the proper Person, and shall
not incur any liability for relying thereon. Each Agent may consult with legal
counsel (who may be counsel for Borrower), and the advice of such counsel shall
be full and complete authorization and protection in respect of any action
taken, suffered or omitted by it hereunder in good faith and in reliance
thereon. Each Agent also may consult with independent accountants and other
experts selected by it, and shall not be liable for any action taken or not
taken by it in accordance with the advice of any such counsel, accountants or
experts. Neither Agent shall be required to advance its own funds in the
performance of its duties hereunder or under any other Loan Documents to which
it is a party. Each Agent may perform its duties and exercise its rights
hereunder or thereunder either directly or by or through agents or attorneys and
shall not be responsible for any misconduct or negligence on the part of any
agent or attorney appointed with due care by it hereunder except as expressly
provided otherwise in this Loan Agreement or any Loan Document to which such
Agent is a party.

        9.6 Non-Reliance by Lenders. Each Lender acknowledges that it has,
independently and without reliance upon either Agent or any other Lender and
based on such documents and information as it has deemed appropriate, made its
own credit analysis and decision to enter into this Agreement. Each Lender also
acknowledges that it will, independently and without reliance upon either Agent
or any other Lender and based on such documents and information as it shall from
time to time deem appropriate, continue to make its own decisions in taking or
not taking action under or based upon this Agreement, any related agreement or
any document furnished hereunder or thereunder. Each Lender expressly
acknowledges that neither Agent nor any of its respective officers, directors,
employees, agents, attorneys-in-fact or Affiliates has made any representations
or warranties to it and that no act by either Agent hereinafter taken, including
any review of the affairs of the Borrower, shall be deemed to constitute any
representation or warranty by such Agent to any Lender. Each Lender acknowledges
that it has the knowledge

                                       47
<PAGE>   52

and experience to be, and is capable of evaluating the merits and risks of
being, a Lender hereunder.

        9.7 Indemnification. Lenders agree to indemnify each Agent (to the
extent not reimbursed by or on behalf of Borrower), ratably according to the
respective principal amounts of the Exposures then held by them (or if no
Exposures are at the time outstanding, ratably according to the respective
amounts of their Commitments), from and against any and all liabilities,
obligations, losses, damages, penalties, actions, judgments, suits, costs,
expenses or disbursements of any kind or nature whatsoever which may be imposed
on, incurred by or asserted against such Agent in any way relating to or arising
out of this Agreement or any other Loan Document or any action taken or omitted
by either Agent under this Agreement or any other Loan Document; provided that
no Lender shall be liable for any portion of such liabilities, obligations,
losses, damages, penalties, actions, judgments, suits, costs, expenses or
disbursements resulting from such Agent's gross negligence or willful
misconduct. Without limiting the foregoing, each Lender agrees to reimburse each
Agent promptly upon demand for its ratable share of any out-of-pocket expenses
(including reasonable counsel fees) incurred by such Agent in connection with
the preparation, execution, delivery, administration, modification, amendment or
enforcement (whether through negotiations, legal proceedings or otherwise) of,
or legal advice in respect of rights or responsibilities under, this Agreement
or any other Loan Document to which it is a party, to the extent that such Agent
is not reimbursed for such expenses by or on behalf of Borrower.

        9.8 Successor. Subject to the appointment and acceptance of a successor
Agent as provided in this paragraph, each Agent may resign at any time by
notifying Lenders and Borrower. Upon any such resignation, the Required Lenders
shall have the right, in consultation with Borrower, to appoint a successor. If
no successor shall have been so appointed by the Required Lenders and shall have
accepted such appointment within thirty (30) days after the retiring Agent gives
notice of its resignation, then the retiring Agent may, on behalf of Lenders,
appoint a successor Agent which shall be a bank with an office in New York, New
York, or an Affiliate of any such bank. If an instrument of acceptance by a
successor administrative agent or collateral agent, as the case may be, shall
not have been delivered to the applicable Agent within thirty (30) days after
the giving of such notice of resignation, the applicable Agent may petition any
court of competent jurisdiction for the appointment of a successor agent. Upon
the acceptance of its appointment as an Agent hereunder by a successor, such
successor shall succeed to and become vested with all the rights, powers,
privileges and duties of the retiring Agent and the retiring Agent shall be
discharged from its duties and obligations hereunder. The fees payable by
Borrower to a successor Agent shall be the same as those payable to its
predecessor unless otherwise agreed between Borrower and such successor. After
an Agent's resignation hereunder, the provisions of this Article 9 and Section
10.3 shall continue in effect for the benefit of such retiring Agent, its
sub-agents and their respective Related Parties in respect of any actions taken
or omitted to be taken by any of them while it was acting as an Agent.

                                       48
<PAGE>   53

ARTICLE 10. MISCELLANEOUS.

        10.1 Notices.

               (a) Except in the case of notices and other communications
expressly permitted to be given by telephone, all notices and other
communications provided for herein shall be in writing and shall be delivered by
hand or overnight courier service, mailed by certified or registered mail or
sent by facsimile, (i) if to Borrower, either Agent or any Lender, at the
address specified for such Person on the signature pages to this Agreement (or
in any Assignment Agreement pursuant to which a Person becomes party to this
Agreement), or (ii) at such other address as shall be designated by any party in
a written notice to the other parties to this Agreement.

               (b) All notices and other communications given to any party
hereto in accordance with the provisions of this Agreement, when hand delivered,
telecopied, telegraphed or telexed, shall be deemed to have been given when hand
delivered, telecopied, delivered to the telegraph company or confirmed by telex
answerback, respectively, and when sent by regular mail, postage prepaid, return
receipt requested or international air courier, shall be deemed to have been
given five (5) days after the date of deposit in the mails or with the
international air courier, respectively, provided that any such notice or
communication to an Agent shall be deemed to have been given only on the date of
receipt.

        10.2 Waivers; Amendments.

               (a) No failure or delay by the Administrative Agent, the
Collateral Agent or any Lender in exercising any right or power hereunder shall
operate as a waiver thereof, nor shall any single or partial exercise of any
such right or power, or any abandonment or discontinuance of steps to enforce
such a right or power, preclude any other or further exercise thereof or the
exercise of any other right or power. The rights and remedies of the
Administrative Agent, the Collateral Agent and Lenders hereunder are cumulative
and are not exclusive of any rights or remedies that they would otherwise have.
No waiver of any provision of this Agreement or consent to any departure by
Borrower therefrom shall in any event be effective unless the same shall be
permitted by Section 10.2(b), and then such waiver or consent shall be effective
only in the specific instance and for the purpose for which given. Without
limiting the generality of the foregoing, the making of a Loan shall not be
construed as a waiver of any Default or Event of Default, regardless of whether
either Agent or any Lender may have had notice or knowledge of such Default or
Event of Default at the time.

               (b) Neither this Agreement nor any provision hereof may be
waived, amended or modified except pursuant to an agreement or agreements in
writing entered into by Borrower and the Required Lenders or by Borrower and the
Administrative Agent with the consent of the Required Lenders; provided that no
agreement waiving, amending or modifying this Agreement or any provision hereof
shall (i) increase the Commitment of any Lender without the written consent of
such Lender, (ii) reduce the principal amount of any Loan or reduce the rate of
interest thereon, or reduce any fees payable hereunder, without the written
consent of each Lender affected thereby, (iii) postpone the scheduled date of
payment of the principal amount of any Loan, or any interest thereon, or any
fees payable hereunder, or reduce the amount of, waive

                                       49
<PAGE>   54

or excuse any such payment, or postpone the scheduled date of expiration of any
Commitment, without the written consent of each Lender affected thereby, (iv)
change Section 4.5(b) or (c) in a manner that would alter the pro rata sharing
of payments required thereby, without the written consent of each Lender or (v)
change any of the provisions of this Section 10.2 or the definition of "Required
Lenders" or any other provision hereof specifying the number or percentage of
Lenders required to waive, amend or modify any rights hereunder or make any
determination or grant any consent hereunder, without the written consent of
each Lender; provided, further, that no such agreement shall amend, modify or
otherwise affect the rights or duties of either Agent without the prior written
consent of such Agent.

        10.3 Expenses, Indemnity, Damage Waiver.

               (a) Borrower shall pay (i) all reasonable out-of-pocket expenses
incurred by the Administrative Agent, the Collateral Agent or any Lender,
including the reasonable fees, charges and disbursements of counsel for the
Administrative Agent, the Collateral Agent and for Lenders, in connection with
the syndication of the credit facilities provided for herein, the due diligence,
preparation and administration of this Agreement or any other Loan Document or
any amendments, modifications or waivers of the provisions hereof or thereof
(whether or not the transactions contemplated hereby or thereby shall be
consummated) and (ii) all out-of-pocket expenses incurred by the Administrative
Agent, the Collateral Agent and by any Lender, including the fees, charges and
disbursements of any counsel for the Administrative Agent, the Collateral Agent
and for any Lender, in connection with the enforcement or protection of its
rights in connection with this Agreement or any other Loan Document, including
its rights under this Section 10.3 (and whether or not the Administrative Agent,
the Collateral Agent or any Lender is a party to any proceeding or action that
may arise in relation thereto and from which such expenses arise), or in
connection with the Loans made hereunder, including all such out-of-pocket
expenses incurred during any workout, restructuring or negotiations (whether or
not consummated) in respect of the Loans.

               (b) Borrower shall indemnify the Administrative Agent, the
Collateral Agent and each Lender, and each Related Party of any of the foregoing
Persons (each such Person being called an "Indemnitee") against, and hold each
Indemnitee harmless from, any and all losses, claims, damages, liabilities and
related expenses, including the reasonable fees, charges and disbursements of
any counsel for any Indemnitee, incurred by or asserted against any Indemnitee
arising out of, in connection with, or as a result of (i) the execution or
delivery of this Agreement or any agreement or instrument contemplated hereby,
the performance by the parties hereto of their respective obligations hereunder
or the consummation of the transactions contemplated by the Loan Documents or
any other transactions contemplated hereby or thereby, (ii) any Loan or the use
of the proceeds therefrom, (iii) any actual or alleged presence or release of
Hazardous Materials on or from any property owned or operated by Borrower or any
of its Subsidiaries, or any Environmental Claim related in any way to Borrower
or any of its Subsidiaries, or (iv) any actual or prospective claim, litigation,
investigation or proceeding relating to any of the foregoing, whether based on
contract, tort or any other theory and regardless of whether any Indemnitee is a
party thereto; provided that such indemnity shall not, as to any Indemnitee, be
available to the extent that such losses, claims, damages, liabilities or
related expenses (A) have resulted from (1) the gross negligence or willful
misconduct of such Indemnitee, (2) the intentional violation of FCC regulations
by such Indemnitee, or (3) the

                                       50
<PAGE>   55

breach by QUALCOMM of its representations, warranties or obligations under
Section 2.1(c), or (B) are indirect or consequential damages, including lost
profits, of QUALCOMM or any of its Affiliates.

               (c) Borrower shall indemnify each Indemnitee against, and hold
each Indemnitee harmless from, any and all losses, claims, damages, liabilities,
and related expenses, including the reasonable fees, charges and disbursements
of any counsel for any Indemnitee, incurred by or asserted against any
Indemnitee arising out of, in connection with, or as a result of (i) any
revocation, cancellation or a diminution in value of, or any restriction on, any
portion of the ADV that has been assigned to Borrower under the ADV Assignment
and Acceptance as part of ADV Loans (whether any unused portion of the ADV has
been returned to QUALCOMM or not) or (ii) any liability to QUALCOMM or any of
its assignees (other than Borrower or its License Subsidiaries) resulting from
any violation of the terms and conditions of the Order or any other Applicable
Laws governing the ADV or FCC Auction No. 35 by Borrower or any of its
Subsidiaries; provided that such indemnity shall not, as to any Indemnitee, be
available to the extent that such losses, claims, damages, liabilities or
related expenses (A) have resulted from (1) the gross negligence or willful
misconduct of such Indemnitee, (2) the intentional violation of the Order or
other FCC regulations by such Indemnitee, or (3) the breach by QUALCOMM of its
representations, warranties or obligations under Section 2.1(c), or (B) are
indirect or consequential damages, including lost profits, of QUALCOMM or any of
its Affiliates.

               (d) To the extent permitted by Applicable Law, Borrower shall not
assert, and hereby waives, any claim against any Indemnitee, on any theory of
liability, for special, indirect, consequential, exemplary or punitive damages
(as opposed to direct or actual damages) arising out of, in connection with, or
as a result of, this Agreement or any agreement or instrument contemplated
hereby, the transactions contemplated by any Loan Document, any Loan or the use
of the proceeds thereof.

               (e) The obligations under Section 10.3(a) and Section 10.3(b)
shall remain effective regardless of whether the transactions contemplated under
this Agreement and the other Loan Documents shall be consummated. The provisions
of this Section 10.3 shall survive the termination of the Commitments and the
repayment of the Loans.

               (f) All amounts due under this Section 10.3 shall be payable
promptly after written demand therefor.

        10.4 Successors and Assigns; Participations.

               (a) The provisions of this Agreement shall be binding upon and
inure to the benefit of the parties hereto and their respective successors and
assigns permitted hereby, except that Borrower may not assign or otherwise
transfer any of its rights or obligations hereunder without the prior written
consent of each Lender (and any attempted assignment or transfer by Borrower
without such consent shall be null and void). Nothing in this Agreement,
expressed or implied, shall be construed to confer upon any Person (other than
the parties hereto, their respective successors and assigns permitted hereby
and, to the extent expressly contemplated hereby, the Related Parties of each of
the Agents and the Lenders) any legal or equitable right, remedy or claim under
or by reason of this Agreement.

                                       51
<PAGE>   56

               (b) Subject to Section 10.4(c), any Lender may assign to one or
more Eligible Assignees all or a portion of its Loans at the time owing to it;
provided that (i) each partial assignment shall be in a minimum amount of
$5,000,000 of the Loans, (ii) the parties to each assignment shall execute and
deliver to the Administrative Agent an Assignment Agreement, together with a
processing and recordation fee of $1,250, except that no assignment fee shall be
payable for any assignment or in respect of any assignment in a series of
assignments between the same assignor and assignee if the assignment fee was
paid for the first assignment in such series, and (iii) the assignee, if it is
not a Lender, shall deliver to the Administrative Agent an Administrative
Questionnaire. Subject to acceptance and recording thereof by the Administrative
Agent pursuant to Section 10.4(e), from and after the effective date specified
in each Assignment Agreement the assignee thereunder shall be a party hereto
and, to the extent of the interest assigned by such Assignment Agreement, have
the rights and obligations of a Lender under this Agreement and the other Loan
Documents, and the assigning Lender thereunder shall, to the extent of the
interest assigned by such Assignment Agreement, be released from its obligations
under this Agreement (and, in the case of an Assignment Agreement covering all
of the assigning Lender's rights and obligations under this Agreement, such
Lender shall cease to be a party hereto but shall continue to be entitled to the
benefits of Sections 4.1, 4.2, 4.4 and 10.3); provided, however, that in no
event shall QUALCOMM be released from its obligations under Section 2.1(c). Any
assignment or transfer by a Lender of rights or obligations under this Agreement
that does not comply with this paragraph shall be treated for purposes of this
Agreement as a sale by such Lender of a participation in such rights and
obligations in accordance with Section 10.4(f).

               (c) No Lender may assign to any Person any portion of its
respective Commitment under this Agreement until, and only to the extent that,
any portion thereof shall be funded and shall become a Loan.

               (d) The Administrative Agent, acting for this purpose as an agent
of Borrower, shall maintain at one of its offices in The City of New York a copy
of each Assignment Agreement delivered to it and a register for the recordation
of the names and addresses of Lenders, and the Commitment of, and principal
amount of the Loans owing to, each Lender pursuant to the terms hereof from time
to time (the "Register"). The entries in the Register shall be conclusive, and
Borrower, the Administrative Agent, the Collateral Agent and Lenders may treat
each Person whose name is recorded in the Register pursuant to the terms hereof
as a Lender hereunder for all purposes of this Agreement and the other Loan
Documents, notwithstanding notice to the contrary. The Register shall be
available for inspection by Borrower and any Lender, at any reasonable time and
from time to time upon reasonable prior notice.

               (e) Upon its receipt of a duly completed Assignment Agreement
executed by an assigning Lender and an assignee, the assignee's completed
Administrative Questionnaire (unless the assignee shall already be a Lender
hereunder) and the processing and recordation fee referred to in Section
10.4(b), the Administrative Agent shall accept such Assignment Agreement and
record the information contained therein in the Register. No assignment shall be
effective for purposes of this Agreement unless it has been recorded in the
Register as provided in this paragraph.

                                       52
<PAGE>   57

               (f) Any Lender may, without the consent of Borrower or either
Agent, sell participations to one or more banks or other entities (a
"Participant") in all or a portion of the Loans owing to it; provided that (i)
such Lender's obligations under this Agreement and the other Loan Documents
shall remain unchanged, (ii) such Lender shall remain solely responsible to the
other parties hereto for the performance of such obligations and (iii) Borrower,
the Administrative Agent, the Collateral Agent and Lenders shall continue to
deal solely and directly with such Lender in connection with such Lender's
rights and obligations under this Agreement and the other Loan Documents. Any
agreement or instrument pursuant to which a Lender sells such a participation
shall provide that such Lender shall retain the sole right to enforce this
Agreement and the other Loan Documents and to approve any amendment,
modification or waiver of any provision of this Agreement and the other Loan
Documents; provided that such agreement or instrument may provide that such
Lender will not, without the consent of the Participant, agree to any amendment,
modification or waiver described in the first proviso to Section 10.2(b) that
affects such Participant. Borrower agrees that each Participant shall be
entitled to the benefits of Sections 4.1, 4.2 and 4.4 to the same extent as if
it were a Lender and had acquired its interest by assignment pursuant to Section
10.4(b). To the extent permitted by law, each Participant also shall be entitled
to the benefits of Section 10.3 as though it were a Lender, provided such
Participant agrees to be subject to Section 4.5(c) as though it were a Lender.

               (g) No Lender may sell participations in any portion of its
respective Commitment under this Agreement to any Person.

               (h) Any Lender may at any time pledge or assign a security
interest in all or any portion of its rights under this Agreement to secure
obligations of such Lender, including any pledge or assignment to secure
obligations to a Federal Reserve Bank, and this Section 10.4 shall not apply to
any such pledge or assignment of a security interest; provided that no such
pledge or assignment of a security interest shall release a Lender from any of
its obligations hereunder or substitute any such pledgee or assignee for such
Lender as a party hereto.

        10.5 Survival. All covenants, agreements, representations and warranties
made by Borrower herein and in the other Loan Documents and in the certificates
or other instruments delivered in connection with or pursuant to this Agreement
and the other Loan Documents shall be considered to have been relied upon by the
other parties hereto and shall survive the execution and delivery of this
Agreement and the making of any Loans, regardless of any investigation made by
any such other party or on its behalf and notwithstanding that either Agent or
any Lender may have had notice or knowledge of any Default, Event of Default or
incorrect representation or warranty at the time any credit is extended
hereunder, and shall continue in full force and effect as long as the principal
of or any accrued interest on any Loan or any fee or any other amount payable
under this Agreement or any other Loan Document is outstanding and unpaid and so
long as the Commitments have not expired or terminated. The provisions of
Sections 4.1, 4.2, 4.4 and 10.3 shall survive and remain in full force and
effect regardless of the consummation of the transactions contemplated hereby,
the repayment of the Loans, the expiration or termination of the Commitments or
the termination of this Agreement or any other Loan Document or any provision
hereof or thereof.

                                       53
<PAGE>   58

        10.6 Counterparts; Integration; Effectiveness.

               (a) This Agreement may be executed in counterparts (and by
different parties hereto on different counterparts), each of which shall
constitute an original, but all of which when taken together shall constitute a
single contract. This Agreement, each other Loan Document and any separate
letter agreements with respect to fees payable to either Agent or any other
party hereto constitute the entire contract among the parties relating to the
subject matter hereof and supersede any and all previous agreements and
understandings, oral or written, relating to the subject matter hereof.

               (b) Except as provided in Section 5.1 and (with respect to the
conditions to the initial Loans) Section 5.2, this Agreement shall become
effective when it shall have been executed by the Administrative Agent and when
the Administrative Agent shall have received counterparts hereof which, when
taken together, bear the signatures of each of the other parties hereto, and
thereafter shall be binding upon and inure to the benefit of the parties hereto
and their respective successors and assigns. Delivery of an executed counterpart
of a signature page of this Agreement by facsimile shall be effective as
delivery of a manually executed counterpart of this Agreement.

        10.7 Right of Set-off. If an Event of Default shall have occurred and be
continuing, each Lender and each of its Affiliates is hereby authorized at any
time and from time to time, to the fullest extent permitted by law, to set off
and apply any and all deposits (general or special, time or demand, provisional
or final) at any time held and other obligations at any time owing by such
Lender or Affiliate to or for the credit or the account of Borrower against any
of and all the obligations of Borrower now or hereafter existing under this
Agreement or any other Loan Document held by such Lender, irrespective of
whether or not such Lender shall have made any demand under this Agreement or
any other Loan Document and although such obligations may be unmatured. The
rights of each Lender under this Section 10.7 are in addition to other rights
and remedies (including other rights of setoff) which such Lender may have.

        10.8 Severability. Any provision of this Agreement held to be invalid,
illegal or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such invalidity, illegality or unenforceability
without affecting the validity, legality and enforceability of the remaining
provisions hereof; and the invalidity of a particular provision in a particular
jurisdiction shall not invalidate such provision in any other jurisdiction.

        10.9 Governing Law; Jurisdiction; Consent to Service of Process.

               (a) This Agreement shall be construed in accordance with and
governed by the law of the State of New York.

               (b) Each party hereto hereby irrevocably and unconditionally
submits, for itself and its property, to the nonexclusive jurisdiction of the
Supreme Court of the State of New York sitting in New York County and of the
United States District Court for the Southern District of New York, and any
appellate court from any thereof, in any action or proceeding arising out of or
relating to this Agreement or any Promissory Note, or for recognition or
enforcement of any judgment, and each of the parties hereto hereby irrevocably
and

                                       54
<PAGE>   59

unconditionally agrees that all claims in respect of any such action or
proceeding may be heard and determined in such New York State court or, to the
extent permitted by law, in such Federal court. Each of the parties hereto
agrees that a final judgment in any such action or proceeding shall be
conclusive. Nothing in this Agreement shall affect any right that any party
hereto may otherwise have to bring any action or proceeding relating to this
Agreement against any other party or its properties in the courts of any
jurisdiction.

               (c) Borrower hereby irrevocably and unconditionally waives, to
the fullest extent it may legally and effectively do so, any objection which it
may now or hereafter have to the laying of venue of any suit, action or
proceeding arising out of or relating to this Agreement in any court referred to
in Section 10.9(b). Each of the parties hereto hereby irrevocably waives, to the
fullest extent permitted by law, the defense of an inconvenient forum to the
maintenance of such action or proceeding in any such court.

               (d) Borrower hereby agrees that service of all writs, process and
summonses in any such suit, action or proceeding brought in the State of New
York may be made upon CSC Networks, presently located at 80 State Street,
Albany, NY 12207, U.S.A. (the "Process Agent"), and Borrower hereby confirms and
agrees that the Process Agent has been duly and irrevocably appointed as its
agent and true and lawful attorney-in-fact in its name, place and stead to
accept such service of any and all such writs, process and summonses, and agrees
that the failure of the Process Agent to give any notice of any such service of
process to Borrower shall not impair or affect the validity of such service or
of any judgment based thereon. Each party to this Agreement further irrevocably
consents to service of process in the manner provided for written notices in
Section 10.1. Nothing in this Agreement will affect the right of any party to
this Agreement to serve process in any other manner permitted by law.

        10.10 WAIVER OF JURY TRIAL. EACH PARTY HERETO HEREBY WAIVES, TO THE
FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY
JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING
TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY (WHETHER BASED ON
CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES THAT NO
REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY
OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK
TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER
PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER
THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 10.10.

        10.11 Headings. The headings of the several sections and subsections of
this Agreement are inserted for convenience only and shall not in any way affect
the meaning or construction of any provision of this Agreement.

        10.12 Interest Rate Limitation. Notwithstanding anything herein to the
contrary, if at any time the interest rate applicable to any Loan, together with
all fees, charges and other amounts which are treated as interest on such Loan
under Applicable Law (collectively the "Charges"), shall exceed the maximum
lawful rate (the "Maximum Rate") which may be

                                       55
<PAGE>   60

contracted for, charged, taken, received or reserved by the Lender holding such
Loan in accordance with Applicable Law, the rate of interest payable in respect
of such Loan hereunder, together with all Charges payable in respect thereof,
shall be limited to the Maximum Rate and, to the extent lawful, the interest and
Charges that would have been payable in respect of such Loan but were not
payable as a result of the operation of this Section 10.12 shall be cumulated
and the interest and Charges payable to such Lender in respect of other Loans or
periods shall be increased (but not above the Maximum Rate therefor) until such
cumulated amount, together with interest thereon at the Federal Funds Rate to
the date of repayment, shall have been received by such Lender.

        10.13 Reinstatement. This Agreement shall continue to be effective or be
reinstated, as the case may be, if at any time payment and performance of the
obligations of Borrower hereunder, or any part thereof, is, pursuant to
Applicable Law, rescinded or reduced in amount, or must otherwise be restored or
returned by the Administrative Agent, the Collateral Agent or any Lender. In the
event that any payment or any part thereof is so rescinded, reduced, restored or
returned, such obligations shall be reinstated and deemed reduced only by such
amount paid and not so rescinded, reduced, restored or returned.

        10.14 Further Assurances. Borrower, the Lenders, the Administrative
Agent and the Collateral Agent each shall take, or cause to be taken at the cost
and expense of Borrower, all actions, and shall do, or cause to be done, all
things reasonably necessary, proper and advisable in order to facilitate and
consummate the transactions contemplated hereby (including, without limitation,
the contemplated use of the ADV in order to cover portions of the Net Winning
Bids).

[REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                       56
<PAGE>   61

               IN WITNESS WHEREOF, each of the parties hereto has caused a
counterpart of this Agreement to be duly executed and delivered as of the date
first above written.

BORROWER:                          LEAP WIRELESS INTERNATIONAL, INC.

                                   By: /s/ THOMAS D. WILLARDSON
                                      -----------------------------------------

                                   Printed Name: THOMAS D. WILLARDSON
                                                -------------------------------
                                   Title: SENIOR VICE PRESIDENT & TREASURER
                                         --------------------------------------

                                   Notice Address for Borrower:

                                   Leap Wireless International, Inc.
                                   10307 Pacific Center Court
                                   San Diego, California 92121
                                   Attention:      General Counsel
                                   Facsimile No.:  (858) 882-6040
                                   Telephone No.:  (858) 882-6000

<PAGE>   62

ADMINISTRATIVE AGENT:              CITIBANK, N.A.,
                                   as the Administrative Agent

                                   By: /s/ LAUREN BROWN
                                      -----------------------------------------

                                   Printed Name: LAUREN BROWN
                                                -------------------------------
                                   Title: ATTORNEY-IN-FACT
                                         --------------------------------------

                                   Notice Address:

                                   CITIBANK, N.A., as the Administrative Agent
                                   2 Penns Way, Suite 200
                                   New Castle, DE 19720
                                   Attention:      Janet Wallace
                                   Facsimile No.:  (302) 894-6120
                                   Telephone No.:  (302) 894-6029

<PAGE>   63

COLLATERAL AGENT:                 CITIBANK, N.A.,
                                  as the Collateral Agent

                                  By: /s/ JOHN J. BYRNES
                                     -----------------------------------------

                                  Printed Name: John J. Byrnes
                                               -------------------------------
                                  Title: Vice President
                                        --------------------------------------

                                  Notice Address:

                                  CITIBANK, N.A., as the Collateral Agent
                                  Citibank Agency and Trust
                                  111 Wall Street, 14th Floor
                                  New York, NY 10043
                                  Attention:      Donna White
                                  Facsimile No.:  (212) 657-3872
                                  Telephone No.:  (212) 657-5252
<PAGE>   64

LENDERS:                         QUALCOMM INCORPORATED

                                 By: /s/ PAUL FISKNESS
                                    -----------------------------------------

                                 Printed Name: Paul Fiskness
                                              -------------------------------
                                 Title: VP Finance
                                       --------------------------------------

                                 Notice Address:

                                 QUALCOMM Incorporated
                                 5775 Morehouse Drive
                                 San Diego, CA 92121
                                 Attention:   Vice President, Project Finance
                                 Facsimile No.:  858-658-4203
                                 Telephone No.:  858-658-4846
<PAGE>   65

                                    EXHIBIT A

                            FORM OF BORROWING REQUEST

                                                        Date: __________________

                          To:       CITIBANK, N.A., as Administrative Agent
                                    2 Penns Way, Suite 200
                                    New Castle, DE 19720
                                    Attention:   Janet Wallace

                                    QUALCOMM Incorporated
                                    5775 Morehouse Drive
                                    San Diego, CA 92121
                                    Attention:   Vice President, Project Finance

        Re:     Borrowing Request No.___ under the Loan Agreement dated as of
                January 22, 2001 (as the same may from time to time be amended,
                modified, supplemented or restated, the "Loan Agreement"), by
                and among LEAP WIRELESS INTERNATIONAL, INC. ("Borrower"),
                QUALCOMM INCORPORATED ("QUALCOMM") and the other lenders from
                time to time party thereto (the other lenders and QUALCOMM,
                collectively, the "Lenders"), and CITIBANK, N.A., as
                administrative agent for the Lenders (the "Administrative
                Agent") and as collateral agent for the Lenders.

Ladies and Gentlemen:

                  Borrower refers to the Loan Agreement, the terms defined
therein being used herein as therein defined, and hereby gives the
Administrative Agent irrevocable notice, pursuant to Section 2.3(a) of the Loan
Agreement, of the request for Borrowing as specified herein:

     The aggregate amount of the requested Loans is $[_______________].

     Subject to Section 2.3(a)(iii) of the Loan Agreement, the requested funding
     date of the requested Loan (which is a Business Day), is
     [_______________, 200__].

     If the requested Loan is to be funded in whole or in part as an ADV Loan
     pursuant to the ADV Notice and the ADV Assignment and Acceptance, the
     requested date of the execution and delivery of the ADV Assignment and
     Acceptance Agreement is [_______________, 200__].

<PAGE>   66

     If the requested Loan is to be funded in whole or in part as a Cash Loan,
     the account to which the requested Cash Loan is to be deposited is account
     number [_________] maintained at [_________________________________].

                  Borrower hereby certifies that the following statements are
true on the date hereof, and will be true on the date of the requested Loan,
before and after giving effect thereto and to the application of the proceeds
therefrom:

                           (a) the representations and warranties of Borrower
         contained in each of the Loan Documents to which it is a party are true
         and correct in all material respects on and as of such date (except to
         the extent such representations and warranties expressly relate to an
         earlier date, in which case they are true and correct as of such date);

                           (b) no Default or Event of Default has occurred and
         is continuing, or would result from such requested Loan;

                           (c) since the date of the most recent audited
         financial statements delivered pursuant to Section 5.1(h) of the Loan
         Agreement, no event, circumstance, occurrence or condition shall have
         occurred which has resulted in, or would reasonably be expected to
         result in, a Material Adverse Effect;

                           (d) the requested Loan will not result in (i) each
         Lender's Exposure under the Facility exceeding such Lender's Commitment
         or (ii) the sum of all Lenders' Exposures under the Facility exceeding
         the Total Commitment; and

                           (e) the requested Loan will be used to finance [the
         Commitment Fee] [Net Winning Bids for Licenses acquired by Borrower in
         FCC Auction No. 35] as contemplated in Section 2.1(b) of the Loan
         Agreement [or interest to be capitalized in accordance with Section
         2.8(c) of the Loan Agreement].

                           Attached as Schedule 1 to this Borrowing Request is a
         true and correct description of the following:

                           (i) the License(s) the acquisition of which is being
         financed from the proceeds of this Borrowing,

                           (ii) the Total License Bids for such License(s)
         (including the Net Winning Bid applicable to each such License),

                           (iii) the aggregate amount of total upfront payments
         made by Borrower in connection with such License(s), and

                           (iv) the aggregate amount of any cash payments due
         and payable with respect to such License(s) after the close of FCC
         Auction No. 35, if any, that cannot be credited against or adjusted by
         the ADV pursuant to the Order.

                            [SIGNATURE PAGE FOLLOWS]

                                       2

<PAGE>   67

                                     Borrower:

                                     LEAP WIRELESS INTERNATIONAL, INC.

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

<PAGE>   68

                         SCHEDULE 1 TO BORROWING REQUEST

<PAGE>   69

                                    EXHIBIT B

                      FORM OF ADV ASSIGNMENT AND ACCEPTANCE

         THIS ADV ASSIGNMENT AND ACCEPTANCE dated as of __________, 2001 (the
"Effective Date"), between QUALCOMM INCORPORATED (the "Assignor") and LEAP
WIRELESS INTERNATIONAL, INC. (the "Assignee").

         A. This ADV Assignment and Acceptance is being executed and delivered
in accordance with and with reference to Section 2.4(a) of that certain Loan
Agreement dated as of January 22, 2001 (as from time to time amended, modified,
supplemented or restated, the "Loan Agreement"), by and among the Assignee (as
Borrower), Assignor (as a Lender), and the other lenders from time to time party
thereto (the other lenders and the Assignor, collectively, the "Lenders"), and
Citibank, N.A. as administrative agent for Lenders (the "Administrative Agent")
and as collateral agent for Lenders. All capitalized terms used, but not defined
herein, shall have the respective meanings assigned to such terms in the Loan
Agreement.

         B. On the terms and subject to the conditions set forth in the Loan
Agreement and herein, the Assignor desires to transfer, sell and assign to the
Assignee, and the Assignee desires to purchase and assume from the Assignor, an
interest (the "Assigned Interest") in the Assignor's rights and obligations in,
to and under the ADV as of the Effective Date in the amount of $________ to be
used by the Assignee for purchasing the License(s) described in the Borrowing
Request No. __, dated [_______________] (the "Borrowing Request"), delivered by
Borrower under the Loan Agreement.

         NOW, THEREFORE, in consideration for undertaking an obligation to repay
an ADV Loan pursuant to the terms of the Loan Agreement in the aggregate
principal amount equal to the $__________ value Assigned Interest, the receipt
and sufficiency of which consideration are hereby acknowledged, the Assignor and
the Assignee hereby agree as follows:

         1. The Assignor hereby sells and assigns to the Assignee WITHOUT
RECOURSE (but subject to Assignor's representations, warranties and obligations
set forth in Section 2.1(c) of the Loan Agreement), and the Assignee hereby
purchases and assumes from the Assignor, the Assigned Interest.

         2. After the execution and delivery of this ADV Assignment and
Acceptance by the Assignee, the Assignor will, upon request of the Assignee,
promptly provide to the Assignee copies of all documents related to the ADV, to
the extent the Assignor deems such documents to be necessary for crediting the
Assigned Interest against the acquisition price of the License(s) that is being
financed as part of the Borrowing requested under the Borrowing Request by
Assignee and to the extent such documents have not been previously furnished to
the Assignee.

         3. Except as provided in Section 2.1(c) of the Loan Agreement, the
Assignor makes no representations or warranty and assumes no responsibility with
respect to any statements, warranties or representations made in connection with
the ADV or as to the execution, legality, validity, enforceability, genuineness,
sufficiency or value of the ADV.

<PAGE>   70

         4. The Assignee agrees hereby that it will perform in accordance with
their terms all of the obligations that, by the terms of the Loan Agreement, are
required to be performed by the Assignee with respect to the Assigned Interest,
including its obligations under Section 7.5 of the Loan Agreement.

         5. Following the execution of this ADV Assignment and Acceptance by the
Assignor and the Assignee, it will be delivered to the Administrative Agent for
recording.

         6. The Assignee shall deliver to the Assignor a duly executed
Promissory Note evidencing the ADV Loan to be made by the Assignor to the
Assignee in the aggregate principal amount equal to the Assigned Interest in
accordance with Section 2.7(d) of the Loan Agreement.

         7. This ADV Assignment and Acceptance shall be governed by, and
construed in accordance with, the laws of the State of New York.

                                       2
<PAGE>   71

         IN WITNESS WHEREOF, each of the parties hereto has caused this ADV
Assignment and Acceptance to be executed and delivered by a duly authorized
person on the date first set forth above.

ASSIGNOR:

QUALCOMM INCORPORATED

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

ASSIGNEE:

LEAP WIRELESS INTERNATIONAL, INC.

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

RECORDED this_____day of

_________________, 200__

CITIBANK, N.A.,
as the Administrative Agent

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

                                       3
<PAGE>   72

                                    EXHIBIT C

                               FORM OF ADV NOTICE

                                                        Date: __________________

              To:      CITIBANK, N.A., as Administrative Agent
                       2 Penns Way, Suite 200
                       New Castle, DE 19720
                       Attention: Janet Wallace

                       LEAP WIRELESS INTERNATIONAL, INC.
                       10307 Pacific Center Court
                       San Diego, California 92121
                       Attention:  General Counsel

                       [            ], as Lender(s)
                       Attention:  [      ]

        Re:     ADV Notice with respect to Borrowing Request No.___, dated as of
                [____], 2001 (the "Borrowing Request"), issued under the Loan
                Agreement dated as of January 22, 2001 (as the same may from
                time to time be amended, modified, supplemented or restated, the
                "Loan Agreement"), by and among LEAP WIRELESS INTERNATIONAL,
                INC. ("Borrower"), QUALCOMM INCORPORATED ("QUALCOMM") and the
                other lenders from time to time party thereto (the other lenders
                and QUALCOMM, collectively, the "Lenders"), and CITIBANK, N.A.,
                as administrative agent for the Lenders (the "Administrative
                Agent") and as the collateral agent for the Lenders.

Ladies and Gentlemen:

                  Reference is made to the Loan Agreement and the Borrowing
Request, the terms defined therein being used herein as therein defined.
QUALCOMM hereby gives the Administrative Agent a notice, pursuant to Section
2.3(d) of the Loan Agreement, with respect to the extension of the ADV Loans, if
any, on the date of Borrowing requested of the request for Borrowing as
specified herein:

     The aggregate amount of the Loans requested in the Borrowing Request is
          $[_______________], of which amount

          (A) [$______][$nil] shall be the aggregate principal amount of ADV
          Loan(s); and
          (B) [$______][$nil] shall be the aggregate principal amount of Cash
          Loan(s)

                                       1
<PAGE>   73

     [Subject to Section 2.3(a)(iii) of the Loan Agreement, the funding date of
         the requested Cash Loan (which is a Business Day), shall be
         [_______________, 200__].]

     If  the requested Loan is funded in whole or in part as an ADV Loan
         pursuant to the ADV Notice and the ADV Assignment and Acceptance, the
         date of the execution and delivery of the ADV Assignment and Acceptance
         shall be [_______________, 200__] [not applicable].

     If  the requested Loan is funded in whole or in part as a Cash Loan, the
         account to which the requested Cash Loan is to be deposited shall be
         account number [_________] maintained at
         [_________________________________] [not applicable].

                                         QUALCOMM INCORPORATED

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

                                       2

<PAGE>   74

                                    EXHIBIT D

                        FORM OF ASSIGNMENT AND ACCEPTANCE

                  ASSIGNMENT AND ACCEPTANCE dated as of __________, 200[ ],
between ____________ (the "Assignor") and _______________ (the "Assignee").

         A. This Assignment and Acceptance is being executed and delivered in
accordance with and with reference to Section 10.4(b) of that certain Loan
Agreement dated as of January 22, 2001 (as from time to time amended, modified,
supplemented or restated, the "Loan Agreement"), by and among LEAP WIRELESS
INTERNATIONAL, INC. ("Borrower"), QUALCOMM INCORPORATED ("QUALCOMM"), and the
other lenders from time to time party thereto (the other lenders and QUALCOMM,
collectively, the "Lenders"), and CITIBANK, N.A. as administrative agent for
Lenders (the "Administrative Agent") and as collateral agent for Lenders.

         B. The Assignor is a Lender under and as defined in the Loan Agreement
and, as such, presently has outstanding Loans under the Loan Agreement as set
forth in Schedule I to this Assignment and Acceptance.

         C. On the terms and subject to the conditions set forth below, as of
the Effective Date (as defined below), the Assignor desires to sell and assign
to the Assignee, and the Assignee desires to purchase and assume from the
Assignor, all of the Assignor's rights and obligations in, with respect to and
under the Loans in the aggregate principal amount of $___________ made by the
Assignor under the Loan Agreement (the "Assigned Interest").

         D. After giving effect to such assignment, the respective outstanding
Loans of the Assignor and the Assignee under the Loan Agreement will be as set
forth in Schedule I to this Assignment and Acceptance.

         NOW, THEREFORE, the Assignor and the Assignee hereby agree as follows:

         1. The Assignor hereby sells and assigns to the Assignee WITHOUT
RECOURSE, and the Assignee hereby purchases and assumes from the Assignor, the
Assigned Interest.

         2. After the execution and delivery of this Assignment and Acceptance
by the Assignee, the Assignor will, upon request of the Assignee, promptly
provide (or will request the Administrative Agent to provide) to the Assignee
copies of all documents not previously furnished to the Assignee that were
delivered to the Assignor or the Administrative Agent pursuant to the conditions
precedent set forth in Article 5 of the Loan Agreement.

         3. The Assignor:

                (a) represents and warrants that it is the legal and beneficial
         owner of the Assigned Interest and that such interest is free and clear
         of any adverse claim;

                (b) makes no representations or warranty and assumes no
         responsibility with respect to any statements, warranties or
         representations made by any Person other than

<PAGE>   75

        itself in or in connection with the Loan Agreement or any other Loan
        Document or the execution, legality, validity, enforceability,
        genuineness, sufficiency or value of the Loan Agreement or any other
        Loan Document; and

                (c) makes no representations or warranty and assumes no
        responsibility with respect to the financial condition of Borrower or
        the performance or observance by Borrower of any of its obligations
        under the Loan Agreement or any other Loan Document.

        4. The Assignee:

                (a) confirms that it has received a copy of the Loan Agreement
        and the Pledge, together with copies of such other documents and
        information as it has deemed appropriate to make its own credit analysis
        and decision to enter this Assignment and Acceptance;

                (b) agrees that it will, independently and without reliance upon
        the Administrative Agent, the Collateral Agent, the Assignor or any
        other Lender and based on such documents and information as it shall
        deem appropriate at the time, continue to make its own credit decisions
        in taking or not taking action under the Loan Agreement and the other
        Loan Documents;

                (c) appoints and authorizes the Administrative Agent and the
        Collateral Agent to take such action in its capacity as the
        Administrative Agent or the Collateral Agent (as the case may be) on the
        Assignee's behalf and to exercise such powers under the Loan Agreement
        and the other Loan Documents as are delegated to the Administrative
        Agent or the Collateral Agent (as the case may be) by the terms thereof,
        together with such powers as are reasonably incidental thereto;

                (d) represents and warrants that (i) it is an "Eligible
        Assignee" as such term is defined in the Loan Agreement and (ii) has
        completed delivered to the Administrative Agent an "Administrative
        Questionnaire" as such term is defined in the Loan Agreement; and

                (e) agrees that it will perform in accordance with their terms
        all of the obligations which by the terms of the Loan Documents are
        required to be performed by a Lender.

        5. Following the execution of this Assignment and Acceptance by the
Assignor and the Assignee, it will be delivered to the Administrative Agent for
recording by the Administrative Agent. The proposed effective date for this
Assignment and Acceptance shall be [_____________________].

        6. At or before 12:00 noon, local time of the Assignor on the proposed
effective date, (a) the Assignee shall have paid to the Assignor the purchase
price agreed to by the Assignor and the Assignee by wire transfer, (b) the
Administrative Agent shall have received the assignment fee of $1,250 as set
forth in Section 10.4(b) of the Loan Agreement, and (c) the Administrative Agent
shall have accepted and recorded this Assignment and Acceptance (the

                                       2
<PAGE>   76

satisfaction of the foregoing three conditions on such date being the "Effective
Date"). As of the Effective Date, (i) the Assignee shall be a party to the Loan
Agreement, (ii) the Assignor shall, with respect to the Assigned Interest,
relinquish its rights and be released from its obligations under the Loan
Agreement, and (iii) the amounts of the Loans held by and the Commitments for
each of the Assignor and Assignee (after giving effect to the assignment
pursuant to this Assignment and Acceptance) will be as set forth in Schedule I
to this Assignment and Acceptance. The Assignor shall retain all rights and
obligations applicable to it under the Loan Agreement relating to acts or
omissions made, or other matters arising, prior to the Effective Date.

         7. Upon and after the Effective Date, the Administrative Agent shall be
directed to make all payments under the Loan Agreement that are payable by the
Administrative Agent for the account of the appropriate Lender to the
appropriate Lenders severally in proportion to their respective percentages
determined after giving effect to this assignment in accordance with the Loan
Agreement. The Assignor and Assignee shall make all appropriate adjustments in
payments under the Loan Agreement for periods prior to the Effective Date
directly between themselves.

         8. Each of the parties to this Assignment and Acceptance agrees that at
any time and from time to time upon the written request of any other party, it
will execute and deliver such further documents and do such further acts and
things as such other party may reasonably request in order to effect the
purposes of this Assignment and Acceptance.

         9. This Assignment and Acceptance shall be governed by, and construed
in accordance with, the laws of the State of New York.

                                       3
<PAGE>   77

         IN WITNESS WHEREOF, each of the parties hereto has caused this
Assignment and Acceptance to be executed and delivered by a duly authorized
person on the date first set forth above.

ASSIGNOR:

[NAME OF ASSIGNOR]

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

ASSIGNEE:

[NAME OF ASSIGNEE]

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

RECORDED this______day of

_______________, 200__

CITIBANK, N.A.,
as the Administrative Agent

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

                                       4
<PAGE>   78

                     SCHEDULE I TO ASSIGNMENT AND ACCEPTANCE

           ASSIGNOR'S AND ASSIGNEE'S OUTSTANDING LOANS AND COMMITMENTS
                               (AFTER ASSIGNMENT)

<TABLE>
<CAPTION>

ASSIGNOR                                   OUTSTANDING LOANS                  OUTSTANDING COMMITMENTS
<S>                                        <C>                                <C>
Loans                                          $                                     $
                                                ----------                            -----------

ASSIGNEE

Loans                                          $
                                                ----------

</TABLE>

<PAGE>   79
                                    EXHIBIT E

--------------------------------------------------------------------------------
DEAL NAME: QUALCOMM -- Leap Wireless International, Inc, Term Loan
--------------------------------------------------------------------------------

LEGAL NAME OF YOUR INSTITUTION TO APPEAR IN DOCUMENTATION

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

             ------------------------------------------------------
                                     GENERAL
                                   INFORMATION
             ------------------------------------------------------

LENDING OFFICE:

         Institution Name:
                          --------------------------------------------------
         Street Address:
                          --------------------------------------------------
         City/State/Zip:
                          --------------------------------------------------
         Attention:
                          --------------------------------------------------
         Telephone #:
                          --------------------------------------------------
         Fax #:
                          --------------------------------------------------

TAX WITHHOLDING:

         Non-Resident Alien:  _____ yes* _____ no (*Form 4224 Enclosed)
         Tax ID Number:
                        --------------------------------------------

Attn:  [_______________]

<PAGE>   80

                                    EXHIBIT F

                             FORM OF PROMISSORY NOTE

$__________                                                  New York, New York
                                                            [__________], 200[_]

                  FOR VALUE RECEIVED, LEAP WIRELESS INTERNATIONAL, INC., a
Delaware corporation ("Borrower"), hereby promises to pay to [ADV LOANS:
QUALCOMM INCORPORATED ("QUALCOMM" or the "Lender")] [CASH LOANS:
__________________ (the "Lender"), at the office of the Lender located at
__________________________________], the principal sum of
[_____________________________] ($____________) Dollars [CASH LOANS (WHERE THE
ENTIRE CASH COMMITMENT IS REQUESTED TO BE INSERTED): (or such lesser amount as
equals the aggregate unpaid principal amount of the Cash Loans made by the
Lender to Borrower under the Loan Agreement (as defined below)], in lawful money
of the United States of America and in immediately available funds, on the dates
and in the principal amounts provided in the Loan Agreement, as defined below,
and to pay interest on the unpaid principal amount of each such Loan, at that
office, in like money and funds, for the period commencing on the Interest
Commencement Date until the indebtedness under this Note is paid in full, at the
rates per annum and on the dates provided in the Loan Agreement.

                  The date, amount and interest rate for each Interest Period of
each Loan made by the Lender to Borrower, and each payment made on account of
the principal of that Loan, shall be recorded by the Lender on its books and,
prior to any transfer of this Note, endorsed by the Lender on the schedule
attached to this Note or any continuation of that schedule, provided that the
failure of the Lender to make any such recordation or endorsement shall not
affect the obligations of Borrower to make a payment when due of any amount
owing under the Loan Agreement or under this Note in respect of the Loans made
by the Lender.

                  This Note is one of the Notes referred to in the Loan
Agreement dated as of January 22, 2001 (as amended, modified and supplemented
and in effect from time to time, the "Loan Agreement") among Borrower, QUALCOMM
[Incorporated] and the other Lenders [(including this Lender)] from time to time
party thereto, and Citibank, N.A., as the administrative and collateral Agent
for the Lenders, and evidences [ADV LOANS: an ADV Loan] [CASH LOANS: Cash
Loans][SINGLE CASH LOAN: a Cash Loan] made by [ADV LOANS: QUALCOMM to Borrower
as of the date set forth above] [CASH LOANS: the Lender] under the Loan
Agreement [SINGLE CASH LOAN: as of the date set forth above]. Capitalized terms
used but not defined in this Note have the respective meanings assigned to them
in the Loan Agreement.

                  The Loan Agreement provides for the acceleration of the
maturity of this Note upon the occurrence of certain events and for prepayments
of Loans evidenced hereby upon the terms and conditions specified in the Loan
Agreement.

<PAGE>   81

                 Except as permitted by Section 10.4 of the Loan Agreement,
this Note may not be assigned by the Lender to any other Person.

                                       2
<PAGE>   82

                  THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAW OF THE STATE OF NEW YORK APPLICABLE TO CONTRACTS MADE AND
PERFORMED WITHIN THE STATE OF NEW YORK.

                                 LEAP WIRELESS INTERNATIONAL, INC.

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

                                       3
<PAGE>   83

                                SCHEDULE OF LOANS

                  This Note evidences Loans made under the Loan Agreement to
Borrower, on the dates, in the principal amounts and bearing interest at the
rates for each Interest Period set forth below, subject to the payments and
prepayments of principal set forth below:

<TABLE>
<CAPTION>

                    Principal
                     Amount                                Amount           Unpaid
       Date            of                Interest          Paid or         Principal         Notation
       Made           Loan                 Rate            Prepaid          Amount           Made by
       ----           ----                 ----            -------          ------           -------
       <S>          <C>                  <C>               <C>             <C>               <C>

</TABLE>

<PAGE>   84

                                  SCHEDULE 2.1

                                   COMMITMENTS

QUALCOMM INCORPORATED                                              $125,273,878

<PAGE>   85

                                  SCHEDULE 6.7

                                   LITIGATION

FCC Matters:

               1. Borrower was granted F-Block and C-Block PCS licenses pursuant
to an FCC order, In re Applications of AirGate Wireless, L.L.C., Assignor, and
Cricket Holdings, Inc., Assignee, For Consent to Assign Broadband PCS F Block
Licenses KNLF882, KNLG279, KNLG280 and KNLG281 And Application of Leap Wireless
International, Inc. For Authorization to Construct and Operate 36 Broadband PCS
C Block Licenses, Memorandum Opinion and Order, FCC File Nos. 0000002035,
0000012974 (rel. July 22, 1999) (the "Grant Order"). An Application for Review
seeking vacation and reversal of the Grant Order, and challenging Borrower's
eligibility to hold these licenses was filed by Carolina PCS Limited Partnership
I, L.P. ("Carolina"). On January 14, 2000, the Commission released an order
consenting to (i) the transfer of control of eleven C-Block PCS licenses from
ChaseTel Licensee Corp. to Borrower, (ii) the assignment of an F-Block PCS
license from PCS Devco, Inc. to Borrower's wholly-owned subsidiary, Cricket
Holdings Dayton, Inc., and (iii) the assignment from Borrower to Devco of a
C-Block PCS license. See In the Matter of PCS Devco, Inc., ChaseTel Licensee
Corp., and Leap Wireless International, Inc., Memorandum Opinion and Order, FCC
File Nos. 0000032055, 0000027712, 0000031464 (rel. Feb. 14, 2000) ("Devco
Order"). On March 15, 2000, Carolina filed an Application for Review of the
Devco Order, based upon its still-pending Application for Review of the Grant
Order. On July 27, 2000, the FCC released a Memorandum Opinion and Order denying
Carolina's Applications for Review of the Grant Order and the Devco Order (the
"Affirmation Order"). On August 25, 2000, Carolina filed a Notice of Appeal in
the United States Court of Appeals for the District of Columbia Circuit seeking
judicial review of the Affirmation Order and the eligibility determinations
contained therein.

               2. Carolina has continued to file petitions to deny each Borrower
assignment or transfer application at the FCC, arguing either that its
then-pending Application for Review of the Grant Order or its pending appeal of
the Affirmation Order in the D.C. Circuit gives it an interest in challenging
Borrower's assertion of "designated entity" status in each and every Borrower
acquisition involving C and F Block spectrum. In addition, Nextel
Communications, Inc. has challenged the proposed assignment of full or
disaggregated C-Block PCS licenses to Borrower from Beta Communications, L.L.C.,
File Nos. 0000110639, 0000110695, questioning the legal validity and accuracy of
Borrower's "designated entity" and "very small business" financial showing in
these applications. On December 8, 2000, the FCC issued an order granting the
Beta-Leap assignments and dismissing the Nextel and Carolina challenges. This
order is not final and remains subject to further administrative or judicial
review. Although Borrower believes it qualifies as a "designated entity" and a
"very small business" under FCC regulations, the FCC could ultimately vacate the
Grant Order and reverse its prior eligibility determinations in the context of
ruling upon any of the other present or future petitions filed by Carolina or
Nextel (or other parties). In addition, Carolina or Nextel can continue to
pursue judicial review of FCC determinations as to Borrower's eligibility, and
Borrower cannot guarantee that the FCC or any courts will rule in Borrower's
favor in any such challenges. On October 13, 2000, the

<PAGE>   86

FCC's Wireless Telecommunications Bureau issued an order ("October 13 Grant
Order") granting applications corresponding to the following file numbers: File
Nos. 0000078055; 0000083794; 0000083799; 0000083814; 0000083827; 0000083828;
0000119257; 0000119262; and 0000191738. On October 30, 2000, the Bureau on its
own motion issued an order modifying these grants (the "October 30
Reconsideration Order") to ensure that Borrower will comply with FCC unjust
enrichment and installment payment rules and policies (if applicable), and
rescinding the grant of the application corresponding to File No. 0000191738 on
the basis that the license held by Lakeland PCS LLC that was to be assigned to
Borrower already had cancelled automatically due to the licensee's failure to
make timely installment payments. The October 13 Grant Order and the October 30
Reconsideration Orders are not final, and may be subject to further agency
reconsideration or judicial review. On November 13, 2000, Carolina filed an
Application for Review of the October 13 Grant Order. On November 29, 2000,
Carolina and Borrower executed a settlement agreement, which has been submitted
to the FCC for approval, which would resolve all pending agency or court
proceedings brought by Carolina against Borrower applications.

               3. Although Borrower believes it qualifies as a "designated
entity" and a "very small business" under FCC regulations, the FCC could vacate
the Grant Order and reverse its prior determination in context of ruling upon
any of the other petitions filed by Carolina or Nextel. In addition, Carolina or
Nextel could appeal the FCC's decisions on the other petitions further to the
FCC and could appeal the FCC's decision concerning the Grant Order and the Devco
Order or other petitions to the courts, and Borrower cannot guarantee that the
FCC or any courts will rule in its favor in any such challenges.

               4. Although Borrower believes it qualifies as a "designated
entity" and a "very small business" under FCC regulations, Carolina PCS Limited
Partnership, L.P., Nextel or other third parties may seek to challenge the
transfer of PCS licenses to Borrower, on the grounds that Borrower does not
qualify as a "designated entity" and a "very small business" under FCC
regulations, and Borrower cannot guarantee that the FCC or any courts will rule
in its favor.

               5. Litigation pending in the D.C. Circuit Court of Appeals that
challenges the FCC's decisions regarding the payment obligations of C block
licensees potentially affects licenses awarded in the C, D, E and F block
broadband PCS auction (Auction No. 22) that closed on April 15, 1999, including
Borrower's licenses won in that auction. See US Airwaves v. FCC, D.C. Cir. No.
98-1266 (August 20, 1998). The FCC has indicated that these licenses are granted
conditioned on the outcome of litigation and proceedings such as this one
challenging generally applicable PCS rules. See Auction of C, D, E and F Block
PCS licenses, Public Notice, 13 FCC Rcd 24540, 24544 (1998).

               6. The FCC has pending before it proceedings that address issues
surrounding the modification of the rules for holding C- and F-Block PCS
licenses. Borrower and its subsidiaries are active participants in these
proceedings, including communicating their positions regarding such matters to
interested persons and educating interested persons regarding the benefits of
the C- and F-block eligibility rules and regulatory framework.

<PAGE>   87

               7. Three licenses granted by the FCC to Borrower in the Grant
Order may be subject to bankruptcy proceedings summarized in the Grant Order at
P. 41 relating to the previous holder of these particular licenses.

Others:

Leap v. Focus Group. Borrower filed a declaratory relief action against the
Focus Group, which provided advertising agency services to Cricket
Communications in 1999, to establish if any additional monies were due the Focus
Group over and above what had already been paid. Focus Group filed a counter
claim for breach of express and implied contract and quantum meruit. A trial was
held in San Diego that resulted in a verdict in the Focus Group's favor on
quantum meruit in an amount of $202,866 plus court costs of $8953. Judgment is
expected to be entered any day and will be paid promptly. This verdict was less
than the reserves established for the litigation.

<PAGE>   88

                                  SCHEDULE 6.16

                              ENVIRONMENTAL MATTERS

None

<PAGE>   89

                                  SCHEDULE 6.21

                                  INDEBTEDNESS
<TABLE>

------------------------------------------------------------------------------------------------------------------------------------
                                                      Amount           Maximum
Indebtedness                                       Outstanding(1)       Available         Description of Liens
------------------------------------------------------------------------------------------------------------------------------------
<S>                                                <C>             <C>                    <C>
Credit Agreement dated as of September 20, 1999,    $352,955,060   $1,350,000,000(2)      The collateral consists of all of the
as amended and restated as of October 20, 2000,                                           stock of Cricket Communications and its
among Holdings, Cricket Communications, the                                               subsidiaries and the stock of each
Lenders party thereto and Lucent Technologies                                             special purpose subsidiary of Borrower
Inc., as Administrative Agent (the "Lucent Credit                                         formed to hold wireless licenses used in
Agreement")                                                                               Cricket Communications' business, and
                                                                                          all of their respective assets.
------------------------------------------------------------------------------------------------------------------------------------
Credit Agreement dated as of October 20, 2000       $2,125,902     $495,000,000(2)
among Holdings, Cricket Communications, the
Lenders party thereto and Ericsson Credit AB, as
Administrative Agent (the "Ericsson Credit
Agreement")

------------------------------------------------------------------------------------------------------------------------------------
Credit Agreement dated as of August 28, 2000, as    $23,567,637    $525,000,000(2)
amended as of October 20, 2000, among Holdings,
Cricket Communications, the Lenders party thereto
and Nortel Networks Inc., as Administrative Agent
(the "Nortel Credit Agreement")
------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

--------
(1) As of 12/31/2000.

(2) Combined total indebtedness cannot exceed $1,845,000,000.

<PAGE>   90

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------------------------------------
<S>                                         <C>            <C>                         <C>               <C>
Each of the preceding Credit Agreements
is guaranteed by a Guarantee Agreement,
dated as of November 24, 1999 among
Holdings, the subsidiaries of Cricket
Communications party thereto, the
subsidiaries of Borrower party thereto
and State Street Bank and Trust Company,
as collateral agent
------------------------------------------------------------------------------------------------------------------------------------
Guarantee Agreement dated as of August
28, 2000 from Borrower in favor of State
Street Bank and Trust Company, as
collateral agent(3)
------------------------------------------------------------------------------------------------------------------------------------
Indenture dated as of February 23,          12.5% Senior    $230,859,371(3)            $225,000,000       Guaranteed by Holdings.
2000, as supplemented as of                 Notes, due
June 13, 2000, among Borrower, as           2010
Issuer, Holdings, as Guarantor,
and State Street Bank and Trust
Company, as Trustee (the
"Indenture")
------------------------------------------------------------------------------------------------------------------------------------
                                            14.5% Senior    $366,583,164(4)            $668,000,000
                                            Discount
                                            Notes, due
                                            2010
------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

---------------------
(3) Under this Guarantee Agreement, Borrower guarantees certain payments,
distributions and transfers permitted under the Nortel Credit Agreement
(pursuant to Section 4.16 of the Indenture), but which are otherwise prohibited
by the Lucent Credit Agreement and Ericsson Credit Agreement.

(4) Includes principal and accrued interest through 12/31/00.

<PAGE>   91

<TABLE>
<CAPTION>

------------------------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>               <C>                <C>
Acquisition Agreement entered into as of September        $0            $18,000,000(5)     The Note is secured by all of the stock
1, 2000, by and among MCG PCS, Inc., MCG PCS                                               of MCG PCS Licensee Corporation, Inc.,
Licensee Corporation, Inc., and Borrower, and for                                          which holds the Buffalo-Niagara Falls,
purposes of Sections 7.5, 12.1, 12.2, 12.6, 12.8,                                          New York Basic Trading Area license. We
12.11, 12.12, 12.13 and 12.15 only, Dr. Michael C.                                         are currently negotiating toward, and
Gelfand                                                                                    expect to reach on, an agreement to
                                                                                           substitute comparable collateral which
                                                                                           is not in Cricket Communication's
                                                                                           current build schedule.
------------------------------------------------------------------------------------------------------------------------------------
Agreement for Purchase and Sale of Licenses               $0            $86,501,769(6)     The Note is secured by Borrower's
entered into as of November 3, 2000 by and among                                           Lansing, Saginaw- Bay City, Kalamazoo,
MVI Corp., Century Personal Access Network, Inc.,                                          Jackson, Muskegon, Battle Creek and
Wisconsin RSA #7, Limited Partnership, Centurytel,                                         Grand Rapids, Michigan licenses and any
Inc., and Borrower                                                                         proceeds therefrom.

------------------------------------------------------------------------------------------------------------------------------------
U.S. Government Financing with the Federal            $91,700,369       $91,700,369        Applicable FCC licenses.
Communications Commission
------------------------------------------------------------------------------------------------------------------------------------
Borrower guarantee of Pegaso Bridge loan                  $0            $33,333,333
------------------------------------------------------------------------------------------------------------------------------------
Reimbursement obligation dated October 3, 2000            $0            $1,250,000         This reimbursement obligation is secured
relating to Letter of Credit Issued by Wells Fargo                                         by certificates of deposit in the
Bank in favor of GE Capital Fleet Services (Motor                                          aggregate amount of $1,250,000.
vehicle leasing program)
------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

----------------
(5) At closing (to occur upon FCC consent to the transfer of the licenses),
Seller has the option of accepting the $36 million purchase price in the form
of: (1) shares of Borrower's common stock; (2) $18 million in cash and the
remaining amount in shares of Borrower's common stock; or (3) $18 million in
cash and a Convertible Note in the principal amount of $18 million.

(6) The $205 million purchase price due at closing (to occur upon FCC consent to
the transfer of the licenses) consists of a $118,665,459 cash payment at the
closing and delivery of a Promissory Note in the amount of $86,501,769.<PAGE>   1
                                                                   EXHIBIT 10.31

                                                                  EXECUTION COPY

                                PLEDGE AGREEMENT

                          Dated as of January 22, 2001

                                    between

                       LEAP WIRELESS INTERNATIONAL, INC.

                                 as the Pledgor

                                      and

                                CITIBANK, N.A.,

                            as the Collateral Agent

                      MILBANK, TWEED, HADLEY & MCCLOY LLP

<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                                                          Page
                                                                                                          ----
<S>                                                                                                       <C>
ARTICLE 1 DEFINITIONS.......................................................................................1
         Section 1.01 Certain Defined Terms.................................................................1
         Section 1.02 Interpretation........................................................................2

ARTICLE 2 COLLATERAL........................................................................................2
         Section 2.01 Grant.................................................................................2
         Section 2.02 Perfection............................................................................3
         Section 2.03 Preservation and Protection of Security Interests.....................................4
         Section 2.04 Attorney-in-Fact......................................................................4
         Section 2.05 Special Provisions Relating to the Stock Collateral...................................5
         Section 2.06 Rights and Secured Obligations........................................................5
         Section 2.07 Termination...........................................................................6

ARTICLE 3 REPRESENTATIONS AND WARRANTIES....................................................................6
         Section 3.01 Representations and Warranties in the Loan Agreement..................................6
         Section 3.02 Title.................................................................................6
         Section 3.03 Corporate Power and Authority to Pledge...............................................6
         Section 3.04 Pledged Stock.........................................................................6
         Section 3.05 Licenses..............................................................................7
         Section 3.06 Miscellaneous.........................................................................7

ARTICLE 4 COVENANTS.........................................................................................8
         Section 4.01 Covenants of Pledgor under the Loan Agreement.........................................8
         Section 4.02 Stock Collateral......................................................................8
         Section 4.03 New License Subsidiaries; Changes to Annex 1..........................................8
         Section 4.04 Liens.................................................................................9
         Section 4.05 Ownership Interest; Additional Shares.................................................9
         Section 4.06 Licenses and License Subsidiaries.....................................................9
         Section 4.07 Notices...............................................................................9
         Section 4.08 Further Assurances....................................................................9

ARTICLE 5 REMEDIES..........................................................................................9
         Section 5.01 Events of Default, Etc................................................................9
         Section 5.02 Deficiency............................................................................10
         Section 5.03 Private Sale..........................................................................11
         Section 5.04 Application of Proceeds...............................................................11

ARTICLE 6 CERTAIN WAIVERS...................................................................................12
         Section 6.01 Absolute Liens; Certain Waivers and Consents..........................................12
         Section 6.02 Understanding With Respect to Waivers and Consents....................................13
         Section 6.03 Subrogation...........................................................................14
         Section 6.04 Reinstatement.........................................................................14
</TABLE>

                                       i
<PAGE>   3

<TABLE>
<CAPTION>

<S>                                                                                                         <C>
         Section 6.05 Remedies..............................................................................14
         Section 6.06 Separate Action.......................................................................14
         Section 6.07 Subordination of Indebtedness of License Subsidiaries.................................15
         Section 6.08 Certain Limitations...................................................................15
         Section 6.09 Revocation............................................................................15

ARTICLE 7 MISCELLANEOUS.....................................................................................15

         Section 7.01 Collateral Agent; Certain Transfers...................................................15
         Section 7.02 Notices...............................................................................16
         Section 7.03 Expenses, Etc.........................................................................16
         Section 7.04 Waiver................................................................................16
         Section 7.05 Amendments, Etc.......................................................................17
         Section 7.06 Continuing Security Interest; Assignments Under the Loan Agreement; Successors and
                      Assigns...............................................................................17
         Section 7.07 Survival..............................................................................17
         Section 7.08 Agreements Superseded.................................................................17
         Section 7.09 Severability..........................................................................18
         Section 7.10 Captions..............................................................................18
         Section 7.11 Counterparts..........................................................................18
         Section 7.12 Governing Law; Submission to Jurisdiction.............................................18
         Section 7.13 WAIVER OF JURY TRIAL..................................................................19
         Section 7.14 FCC CONSENT...........................................................................19
</TABLE>

ANNEX 1 PLEDGED STOCK IN LICENSE SUBSIDIARIES

                                       ii
<PAGE>   4

                                PLEDGE AGREEMENT

This PLEDGE AGREEMENT (this "Agreement"), dated as of January 22, 2001, is made
between LEAP WIRELESS INTERNATIONAL, INC., a Delaware corporation (the
"Pledgor") and holder of one hundred percent (100%) of the Capital Stock, as
defined below, of each License Subsidiary, as defined below, set forth in Annex
1, and CITIBANK, N.A., as the Collateral Agent (in such capacity, the
"Collateral Agent") for the Secured Parties, as defined below.

               A. Pursuant to the Loan Agreement, dated as of the date hereof
(as amended, supplemented or modified from time to time, the "Loan Agreement"),
among the Pledgor, as Borrower, QUALCOMM INCORPORATED, as Lender ("QUALCOMM"),
other lenders specified in the Loan Agreement (each, including QUALCOMM, a
"Lender", and , collectively with QUALCOMM, the "Lenders"), Citibank, N.A., as
administrative agent for the Lenders (in such capacity, the "Administrative
Agent") and the Collateral Agent, the Lenders have agreed to make certain loans
(the "Loans") to the Pledgor.

               B. It is a requirement under the Loan Agreement and a condition
precedent to the making of the Loans that the Pledgor shall have executed and
delivered this Agreement.

               To induce the Lenders to enter into, and to extend credit under,
the Loan Agreement and for other good and valuable consideration, the receipt
and sufficiency of which are hereby acknowledged, the Pledgor agrees to pledge
and grant a first-priority Lien on the Collateral as security for the Secured
Obligations. Accordingly, the Pledgor agrees with the Collateral Agent as
follows:

                                    ARTICLE 1

                                   DEFINITIONS

               Section 1.01 Certain Defined Terms. Unless otherwise defined, all
capitalized terms used in this Agreement that are defined in the Loan Agreement
(including those terms incorporated by reference) shall have the respective
meanings assigned to them in the Loan Agreement. In addition, the following
terms shall have the following meanings under this Agreement:

               "Collateral" shall have the meaning set forth in Section 2.01(a).

               "FCC Laws" shall mean the U.S. Communications Act of 1934, and
any similar or successor federal statute, and the published rules, regulations
and orders of the FCC, all as the same may be in effect from time to time.

               "Pledged Stock" shall have the meaning set forth in Section
2.01(a)(i).

               "Secured Obligations" shall mean Borrower Obligations.

<PAGE>   5

               "Stock Collateral" shall have the meaning set forth in Section
2.01(a)(iii).

               "Termination Date" shall have the meaning set forth in Section
2.07.

               "Uniform Commercial Code" shall mean the Uniform Commercial Code
as in effect in the State of New York from time to time.

               Section 1.02 Interpretation. The provisions of Sections 1.2 and
1.3 of the Loan Agreement are incorporated herein by reference and made a part
hereof and shall apply to this Agreement mutatis mutandis as if set forth in
full in this Agreement.

                                    ARTICLE 2

                                   COLLATERAL

               Section 2.01 Grant.

               (a) As collateral security for the prompt payment in full when
due (whether at stated maturity, upon acceleration, on any optional or mandatory
prepayment date or otherwise) and performance of the Secured Obligations, the
Pledgor hereby pledges and grants to the Collateral Agent, for the ratable
benefit of the Secured Parties, a security interest in all of the Pledgor's
right, title and interest in, to and under the following property, whether now
owned or in the future acquired by the Pledgor and whether now existing or
hereafter coming into existence (collectively, the "Collateral"):

                      (i) (A) all of the issued and outstanding shares of
        Capital Stock in each License Subsidiary set forth in Annex 1
        represented by the respective certificates identified in Annex 1 and all
        of the issued and outstanding other shares, securities, membership or
        partnership interests in each such License Subsidiary of whatever type,
        now owned or in the future acquired by the Pledgor, and (B) all of the
        issued and outstanding shares of Capital Stock in each Wholly-Owned
        Subsidiary of the Pledgor that becomes a License Subsidiary, together
        with, in each case, the certificates representing the same and all of
        the issued and outstanding other shares, securities, membership or
        partnership interests in any such License Subsidiary, whether the stock
        or other interest of such Subsidiary is now owned by the Pledgor or is
        acquired by the Pledgor in the future (collectively, the "Pledged
        Stock");

                      (ii) all shares, securities, membership or partnership
        interests, moneys or other property representing a dividend on, or a
        distribution or return of capital in respect of any of the Pledged
        Stock, resulting from a split-up, revision, reclassification or other
        like change of any of the Pledged Stock or otherwise received or to be
        received in exchange for any of the Pledged Stock and all rights issued
        to the holders of, or otherwise in respect of, any of the Pledged Stock;

                                       2
<PAGE>   6

                      (iii) without affecting the obligations of the Pledgor as
        Borrower under any provision of the Loan Agreement or any other Loan
        Document prohibiting such action, in the event of any consolidation or
        merger in which any License Subsidiary is not the surviving entity, all
        shares, securities or membership or partnership interests, of the
        successor entity formed by or resulting from that consolidation or
        merger (collectively, and together with the property described in
        clauses (i) and (ii) of this Section 2.01(a) above, the "Stock
        Collateral");

                      (iv) To the extent related to all or any part of the
        Collateral, all books, correspondence, credit files, records, invoices,
        tapes, cards, computer files and other papers and documents in the
        possession or under the control of the Pledgor or any computer bureau or
        service company from time to time acting for the Pledgor; and

                      (v) All proceeds and products in whatever form of all or
        any part of the Collateral.

               Section 2.02 Perfection.

               (a) Concurrently with the execution and delivery of this
Agreement, the Pledgor shall (i) deliver to the Collateral Agent the original of
each certificate identified in Annex 1, accompanied by undated stock powers,
endorsements or other similar documents representing the Pledged Stock at such
time, duly executed in blank, (ii) file such financing statements and other
documents in such offices as is necessary and as the Collateral Agent (acting at
the request or with the consent of the Required Lenders) may request, and (iii)
take all such other actions as is necessary or as the Collateral Agent (acting
at the request or with the consent of the Required Lenders) may request to
create, perfect and establish the first priority of the Liens granted by this
Agreement.

               (b) With respect to any Collateral in which the Pledgor has any
right, title or interest and that constitutes an uncertificated security, the
Pledgor shall cause any issuer thereof either (i) to register the Collateral
Agent as the registered owner of such security or (ii) to agree in writing with
the Pledgor and the Collateral Agent that such issuer shall comply with
instructions of the Collateral Agent with respect to such security without
further consent of the Pledgor, such agreement to be in form, scope and
substance satisfactory to the Collateral Agent.

               (c) The Collateral Agent shall have the right at any time to
exchange certificates or instruments representing or evidencing Collateral for
certificates or instruments of smaller or larger denominations.

               (d) The Pledgor hereby authorizes the Collateral Agent or any
other Secured Party to file one or more financing or continuation statements,
and amendments thereto, relating to all or any part of the Collateral pledged by
the Pledgor hereunder without the signature of the Pledgor where permitted by
law. A photocopy or other reproduction of this Agreement or any financing
statement covering the Collateral or any part thereof shall be sufficient as a
financing statement where permitted by law.

                                       3
<PAGE>   7

               Section 2.03 Preservation and Protection of Security Interests.
The Pledgor shall:

               (a) upon the acquisition after the date hereof by the Pledgor of
any Stock Collateral, promptly either (i) transfer and deliver to the Collateral
Agent all such Stock Collateral (together with the certificates representing
such Stock Collateral duly endorsed in blank or accompanied by undated stock
powers, endorsements or similar document duly executed in blank) or (ii) take
such other action as the Collateral Agent (acting at the request or with the
consent of the Required Lenders) reasonably deems necessary or appropriate to
create, perfect and establish the first priority of, the Liens granted by this
Agreement in such Stock Collateral;

               (b) give, execute, deliver, file or record any and all financing
statements, notices, contracts, agreements or other instruments, obtain any and
all Governmental Approvals and take any and all steps that may be necessary or
as the Collateral Agent may reasonably request to create, perfect, establish the
first priority of, or to preserve the validity, perfection or the first priority
of, the Liens granted by this Agreement or to enable the Collateral Agent to
exercise and enforce its rights, remedies, powers and privileges under this
Agreement with respect to those Liens, including causing any or all of the Stock
Collateral to be transferred of record into the name of the Collateral Agent or
its nominee; and

               (c) furnish to the Collateral Agent from time to time statements
and schedules further identifying and describing the Collateral pledged by the
Pledgor hereunder and such other reports in connection with the Collateral
pledged by the Pledgor hereunder as the Collateral Agent may reasonably request,
all in reasonable detail.

               Section 2.04 Attorney-in-Fact. Subject to the rights of the
Pledgor under Section 2.05, the Pledgor hereby appoints the Collateral Agent its
attorney-in-fact for the purposes of carrying out the provisions of this
Agreement and taking any action and executing any instruments that the
Collateral Agent (acting at the request or with the consent of the Required
Lenders) may deem necessary or advisable to accomplish the purposes of this
Agreement, to preserve the validity, perfection and first priority of the Liens
granted by this Agreement and, following any Default, to exercise its rights,
remedies, powers and privileges under this Agreement. This appointment as
attorney-in-fact is irrevocable and coupled with an interest. Without limiting
the generality of the foregoing, the Collateral Agent shall be entitled under
this Agreement upon the occurrence and continuation of any Event of Default,
with full powers of substitution either in the name of the Collateral Agent or
the Pledgor, (a) to ask, demand, collect, sue for, recover, compromise, receive
and give receipt and discharge for amounts due and to become due under and in
respect of the Collateral or any part thereof; (b) to receive, endorse and
collect any drafts, checks, instruments, documents and chattel paper in
connection with clause (a) above; (c) to file any claims or take any action or
institute any proceeding that the Collateral Agent (acting at the request or
with the consent of the Required Lenders) may deem necessary or advisable for
the collection of all or any part of the Collateral or otherwise to enforce
compliance with the rights of the Collateral Agent with respect to any of the
Collateral or any part thereof; (d) to execute, in connection with any sale or
disposition of the

                                       4
<PAGE>   8

Collateral under Article 5, any endorsements, assignments, bills of sale or
other instruments of conveyance or transfer with respect to all or any part of
the Collateral, and (e) to settle, compromise, prosecute or defend any action,
claim or proceeding with respect to the Collateral.

               Section 2.05 Special Provisions Relating to the Stock Collateral.

               (a) So long as no Default has occurred and is continuing, the
Pledgor shall have the right to exercise all voting, consensual and other powers
of ownership pertaining to the Stock Collateral for all purposes and in a manner
not inconsistent with the terms of any Loan Document, provided that the Pledgor
shall not be entitled to exercise any such right if the result thereof could
materially and adversely affect the rights and remedies of any of the Secured
Parties under this Agreement or any other Loan Document or the ability of the
Secured Parties to exercise the same or the value of the Collateral or any part
thereof.

               (b) So long as no Default has occurred and is continuing, but
subject to the terms of the Loan Agreement (including Sections 2.11 and 7.1
thereof), the Pledgor shall be entitled to receive and retain any dividends or
distributions on the Stock Collateral paid in cash out of earned surplus (and
not, for the avoidance of doubt, paid in connection with a partial or total
liquidation or dissolution or in connection with a reduction of capital, capital
surplus or paid-in surplus or otherwise distributed in redemption of, or in
exchange for, any Collateral), to the extent and only to the extent allowed by
the Loan Agreement, other Loan Documents and Applicable Laws.

               (c) If any Default shall have occurred and be continuing, and
whether or not the Collateral Agent or any other Secured Party exercises any
available right to declare any Secured Obligation due and payable or seeks or
pursues any other right, remedy, power or privilege available to it under
Applicable Law, this Agreement or any other Loan Document, all dividends and
other distributions on the Stock Collateral (whether paid or payable in cash or
otherwise, whether resulting from a merger, consolidation, acquisition, partial
or total liquidation, dissolution of the relevant License Subsidiary or
subdivision, combination or a reclassification of the Capital Stock of any
License Subsidiary) shall be paid directly to the Collateral Agent to account
number 103828 or any other account designated and maintained from time to time
by the Collateral Agent, subject to the terms of this Agreement, and, if the
Collateral Agent shall so request, the Pledgor agrees to execute and deliver to
the Collateral Agent appropriate additional dividend, distribution and other
orders and instruments to that end. Upon the occurrence of a Default, all rights
of the Pledgor to dividends or other distributions on the Stock Collateral
pursuant to Section 2.05(b) shall cease, and all such rights shall become vested
in the Collateral Agent, which shall have the sole and exclusive right and
authority to receive such dividends and distributions. All dividends and other
distributions received by the Pledgor in violation of this Section 2.05(c) shall
be held in trust for the benefit of the Collateral Agent, shall be segregated
from the other property or funds of the Pledgor and shall forthwith be paid over
to the Collateral Agent as Collateral in the same form as so received (with any
necessary endorsements).

               Section 2.06 Rights and Secured Obligations.

                                       5
<PAGE>   9

               (a) No reference in this Agreement to proceeds or to the sale or
other disposition of Collateral shall authorize the Pledgor to sell or otherwise
dispose of any part of the Collateral, except in accordance with the provisions
of the Loan Agreement.

               (b) Neither the Collateral Agent nor any other Secured Party
shall be required to take steps necessary to preserve any rights against prior
parties to any part of the Collateral.

               Section 2.07 Termination. This Agreement shall (so long as no
Commitments remain outstanding) terminate upon the full and final payment of any
and all Secured Obligations (the "Termination Date"), and, promptly after the
Termination Date, the Collateral Agent (acting at the direction of the Required
Lenders) will cause to be assigned, transferred and delivered, against receipt
but without any recourse, warranty or representation whatsoever, any remaining
Collateral and money received in respect of the Collateral, to or on the order
of the Pledgor.

                                    ARTICLE 3

                         REPRESENTATIONS AND WARRANTIES

                  As of the date hereof, as of the date of each Borrowing and
(solely with respect to any new License Subsidiaries being added to Annex 1, but
excluding the representations and warranties in Section 3.01), as of the date of
any change to Annex 1 contemplated by Section 4.03, the Pledgor represents and
warrants to the Collateral Agent, QUALCOMM and each other Secured Party as
follows:

               Section 3.01 Representations and Warranties in the Loan
Agreement. The Pledgor confirms the representations and warranties contained in
Article 6 of the Loan Agreement, as if made as of each date provided for in the
Loan Agreement, which are incorporated herein by reference as if fully set forth
in this Agreement for the benefit of the Collateral Agent, QUALCOMM and each
other Secured Party.

               Section 3.02 Title. The Pledgor is the sole legal and beneficial
owner of the Collateral, and the Collateral is free and clear of all Liens,
except for the Liens created pursuant to this Agreement or, to the extent any
such Lien is permitted under Section 7.6(d) of the Loan Agreement, the
subordinated Liens of the lenders under the Vendor Credit Agreements.

               Section 3.03 Corporate Power and Authority to Pledge. The Pledgor
has full corporate power and authority to create and perfect valid
first-priority Liens on the Collateral in the manner and on the terms provided
in this Agreement and the Pledgor has taken all necessary corporate and, if
required, stockholder action to duly authorize the creation and perfection of
such Liens.

               Section 3.04 Pledged Stock.

               (a) The Pledged Stock evidenced by the certificates identified in
Annex 1 is duly authorized, validly existing, fully paid and non-assessable, and
none of such Pledged Stock

                                       6
<PAGE>   10

is subject to any contractual restriction, or any restriction under the Charter
Documents of the relevant License Subsidiary or the Pledgor on the transfer of
such Pledged Stock (except for any such restriction contained in the Loan
Agreement or any other Loan Document).

               (b) The Pledged Stock evidenced by the certificates identified in
Annex 1 constitutes all of the issued and outstanding shares of the Capital
Stock of each License Subsidiary listed on Annex 1 legally and beneficially
owned by the Pledgor on the date hereof and as of the date of any change to
Annex 1 contemplated by Section 4.03 (whether or not registered in the name of
the Pledgor). The Pledgor owns 100% of the Pledged Stock in each License
Subsidiary listed on Annex 1.

               (c) Annex 1 correctly identifies, as at the date hereof, the
respective type, percentage interest, and number of the shares of the Pledged
Stock evidenced by each such certificate. All information with respect to the
Pledged Stock as listed on Annex 1 is accurate and complete in all material
respects as of the date of this Agreement and as of the date of any change to
Annex 1 contemplated by Section 4.03.

               Section 3.05 Licenses. Each License described in Annex 1 as
maintained by the relevant License Subsidiary has been duly obtained, is validly
issued, is in full force and effect, is held in the name of such License
Subsidiary and is free from any condition or requirement under Applicable Law
compliance with which could reasonably be expected to result in a Material
Adverse Effect or which Borrower does not reasonably expect to be able to
satisfy in a timely manner. No Governmental Approval is required to be obtained
or accomplished for the continued validity of each such License.

               Section 3.06 Miscellaneous.

               (b) The Chief Executive Office of the Pledgor is located at the
address specified in Annex 1, as such Annex 1 may be amended from time to time.
The Pledgor's federal tax identification number is set forth in Annex 1. All
Collateral consisting of certificated securities and instruments has been
delivered to the Collateral Agent. All actions required by Section 2.02(b) with
respect to uncertificated securities included in the Collateral have been taken
by the Pledgor.

               (c) No effective financing statement or other instrument similar
in effect covering all or any part of the Collateral is on file in any recording
office, except such as may have been filed in favor of the Collateral Agent
relating to this Agreement or the other Loan Documents or, to the extent any
such Lien is permitted under Section 7.06(d) of the Loan Agreement, such as may
have been filed or may be filed in respect of the subordinated Liens of the
lenders under the Vendor Credit Agreements.

               (d) This Agreement and the pledge of the Collateral by the
Pledgor pursuant hereto create in favor of the Collateral Agent for the benefit
of the Secured Parties a valid and perfected first priority Lien on the
Collateral of the Pledgor, securing the payment of the Secured Obligations, and
all filings and other actions necessary or desirable to perfect and protect such
Lien have been duly taken.

                                       7
<PAGE>   11

               (e) No consent of any other Person and no Governmental Approval
by, and no notice to or filing with, any Governmental Authority or regulatory
body, or any other Person is required for (i) the grant by the Pledgor of the
Liens granted hereby, for the pledge by the Pledgor of the Collateral pursuant
hereto or for the execution, delivery and performance of this Agreement by the
Pledgor, (ii) the perfection or maintenance of the Liens created hereby
(including the first priority nature of such Liens), except for action described
in Section 2.02, which actions have been taken and are in full force and effect,
or (iii) the exercise by the Collateral Agent of its voting or other rights
provided for in this Agreement or the remedies in respect of the Collateral
pursuant to this Agreement, except for notices by the Collateral Agent to the
lenders under the Vendor Credit Agreements who have subordinated Liens in the
Collateral, and except as may be required in connection with the disposition or
any portion of the Collateral by laws affecting the offering and sale of
securities generally.

                                    ARTICLE 4

                                    COVENANTS

               The Pledgor covenants and agrees that so long as any Secured
Obligations remain unpaid or unsatisfied, that:

               Section 4.01 Covenants of Pledgor under the Loan Agreement. The
Pledgor shall observe and perform each of the covenants and agreements contained
in Article 7 of the Loan Agreement, and such covenants and agreements are
incorporated by reference into this Agreement, mutatis mutandis, for the benefit
of the Collateral Agent and each Secured Party.

               Section 4.02 Stock Collateral. The Pledgor shall cause the Stock
Collateral to constitute at all times 100% of the total number of shares in each
class of Capital Stock of each License Subsidiary then outstanding. The Pledgor
shall cause all such shares of Capital Stock to be duly authorized, validly
existing, fully paid and non-assessable, and to be free of any contractual
restriction or any restriction under the Charter Documents of such License
Subsidiary or the Pledgor on the transfer of such Pledged Stock (except for any
such restriction contained in the Loan Agreement or any other Loan Document).

               Section 4.03 New License Subsidiaries; Changes to Annex 1.

               (a) Promptly, but no later than five (5) Business Days after the
date when a Subsidiary of the Pledgor becomes a License Subsidiary, the Pledgor
shall take all actions required under Section 2.01, Section 2.02 and Section
2.03 or as otherwise requested by the Collateral Agent in order to create a
valid and perfected first-priority Lien on the Capital Stock of such Subsidiary
in favor of the Collateral Agent acting for the benefit of the Secured Parties.

               (b) Promptly, but no later than five (5) Business Days after the
date when a Subsidiary of the Pledgor becomes a License Subsidiary, the Pledgor
shall provide the Collateral Agent with an updated Annex 1 describing the
Pledged Stock, including (without limitation) the Capital Stock of such
Subsidiary and describing the License held in the name of such Subsidiary

                                       8

<PAGE>   12

and shall request approval of such updated schedule from the Required Lenders.
Upon approval by the Required Lenders, such updated Annex 1 shall be deemed to
have replaced the original Annex 1.

               Section 4.04 Liens. The Pledgor shall not, and shall not permit
any License Subsidiary to, create, incur, assume or suffer to exist any Lien on
the Capital Stock or assets of any License Subsidiary except for the Liens
created pursuant to this Agreement or, to the extent permitted under Section
7.6(d) of the Loan Agreement, for subordinated Liens in favor of the lenders
under the Vendor Credit Agreements.

               Section 4.05 Ownership Interest; Additional Shares. The Pledgor
shall defend its title to the Stock Collateral and shall not sell, assign,
lease, transfer or otherwise dispose of all or any portion of the Collateral
(including by operation of law) except as permitted under this Agreement. The
Pledgor shall (i) cause each License Subsidiary listed on Annex 1, as amended
from time to time, not to issue any Capital Stock in addition to or in
substitution for the Pledged Stock issued by such License Subsidiary as listed
on Annex 1, except to the Pledgor, and (ii) the Pledgor, immediately upon
acquisition thereof, shall take all actions required under Section 2.01, Section
2.02 and Section 2.03 or as otherwise requested by the Collateral Agent in order
to create in favor of the Secured Parties a valid and perfected first-priority
Lien on such Capital Stock of such License Subsidiary.

               Section 4.06 Licenses and License Subsidiaries. The Pledgor
agrees that it shall cause each License Subsidiary (a) to be a direct
Wholly-Owned Subsidiary of the Pledgor, (b) not to engage in any business or
activity other than the ownership of one or more Licenses and activities
incidental thereto, (c) not to own or acquire any assets other than one or more
Licenses, cash and other assets permitted under the Loan Agreement or the Vendor
Facilities, and (d) not to have or incur any Indebtedness or other liabilities.

               Section 4.07 Notices. The Pledgor shall promptly give to the
Collateral Agent copies of any material notices or other communications received
by it with respect to the Stock Collateral.

               Section 4.08 Further Assurances. The Pledgor shall, from time to
time upon the written request of the Collateral Agent, execute and deliver such
further documents and do such other acts and things as the Collateral Agent may
reasonably request in order fully to effect the purposes of this Agreement.

                                    ARTICLE 5

                                    REMEDIES

               Section 5.01 Events of Default, Etc. If any Event of Default has
occurred and is continuing:

                                       9
<PAGE>   13

               (a) the Collateral Agent in its discretion (acting at the request
or with the consent of the Required Lenders) may, in its name or in the name of
the Pledgor or otherwise, demand, sue for, collect or receive any money or
property at any time payable or receivable on account of or in exchange for all
or any part of the Collateral, but shall be under no obligation to do so;

               (b) the Collateral Agent in its discretion (acting at the request
or with the consent of the Required Lenders) may, upon ten (10) Business Days'
prior written notice to the Pledgor (which the Pledgor agrees is reasonable
notice within the meaning of the relevant provisions of the Uniform Commercial
Code and other Applicable Law) of the time and place, sell, lease or otherwise
dispose of all or any part of the Collateral that then is or subsequently comes
into the possession, custody or control of the Collateral Agent, the
Administrative Agent, any other Secured Party or any of their respective agents,
at such place or places as the Collateral Agent (acting at the request or with
the consent of the Required Lenders) deems best, for cash, for credit or for
future delivery (without thereby assuming any credit risk) and at public or
private sale, without demand of performance or notice of intention to effect any
such disposition or of the time or place of any such sale (except such notice as
is required above or by applicable statute and cannot be waived), and any Lender
or any other Person may be the purchaser, lessee or recipient of all or any part
of the Collateral so disposed of at any public sale (or, to the extent permitted
by law, at any private sale) and thereafter hold the same absolutely, free from
any claim or right of whatsoever kind, including any right or equity of
redemption (statutory or otherwise), of the Pledgor, and the Pledgor hereby
waives and releases any such demand, notice and right or equity. The Collateral
Agent may, without notice or publication, adjourn any public or private sale or
cause the same to be adjourned from time to time by announcement at the time and
place fixed for the sale, and that sale may be made at any time or place to
which the sale may be so adjourned; and

               (c) the Collateral Agent shall have, and in its discretion
(acting at the request or with the consent of the Required Lenders) may
exercise, all of the rights, remedies, powers and privileges with respect to the
Collateral of a secured party under the Uniform Commercial Code (whether or not
the Uniform Commercial Code is in effect in the jurisdiction where any such
rights, remedies, powers and privileges are asserted) and such additional
rights, remedies, powers and privileges to which a secured party is entitled
under the laws in effect in any jurisdiction where any rights, remedies, powers
and privileges in respect of this Agreement or the Collateral may be asserted,
including the right, to the maximum extent permitted by law, to exercise all
voting, consensual and other powers of ownership pertaining to the Collateral as
if the Collateral Agent were the sole and absolute owner of the Collateral (and
the Pledgor will take all such action as may be appropriate to give effect to
that right).

The proceeds of, and other realization upon, the Collateral by virtue of the
exercise of remedies under this Section 5.01 shall be applied in accordance with
Section 5.04.

               Section 5.02 Deficiency. If the proceeds of, or other realization
upon, the Collateral by virtue of the exercise of remedies under Section 5.01
are insufficient to cover the

                                       10
<PAGE>   14

costs and expenses of that exercise and the payment in full of the other Secured
Obligations under this Agreement, the Pledgor shall remain liable for any
deficiency.

               Section 5.03 Private Sale.

               (a) Neither the Collateral Agent nor any Secured Party shall
incur any liability as a result of the sale, lease or other disposition of all
or any part of the Collateral at any private sale pursuant to Section 5.01
conducted in a commercially reasonable manner. The Pledgor hereby waives any
claims against the Collateral Agent or any Secured Party that may arise by
reason of the fact that the price at which the Collateral may have been sold at
such a private sale was less than the price that might have been obtained at a
public sale or was less than the aggregate amount of the Secured Obligations,
even if the Collateral Agent accepts the first offer received and does not offer
the Collateral to more than one offeree.

               (b) The Pledgor recognizes that, by reason of certain
prohibitions contained in the Securities Act of 1933 and applicable state
securities laws, the Collateral Agent may be required to limit purchasers of all
or any part of the Collateral to those who will agree, among other things, to
acquire the Collateral for their own account, for investment and not with a view
to distribution or resale. The Pledgor acknowledges that any such private sales
may be at prices and on terms less favorable to the Collateral Agent than those
obtainable through a public sale without those restrictions, and,
notwithstanding those circumstances, agrees that any such private sale shall be
deemed to have been made in a commercially reasonable manner and that the
Collateral Agent shall have no obligation to engage in public sales and no
obligation to delay the sale of any Collateral for the period of time necessary
to permit the Pledgor to register it for public sale.

               Section 5.04 Application of Proceeds. Except as otherwise
expressly provided in this Agreement, the proceeds of, or other realization
upon, all or any part of the Collateral by virtue of the exercise of remedies
under Section 5.01 and any other cash at the time held by the Collateral Agent
under Section 5.01 shall be applied by the Collateral Agent:

               First, to the payment of the costs and expenses of that exercise
of remedies, including reasonable out-of-pocket costs and expenses of the
Collateral Agent, the reasonable fees and expenses of its agents and counsel and
all other expenses incurred and advances made by the Collateral Agent in that
connection;

               Next, to the payment in full of the remaining Secured Obligations
equally and ratably in accordance with their respective amounts then due and
owing or as the Secured Parties holding the same may otherwise agree; and

               Finally, subject to the rights of the other holder of any
subordinated Lien in the relevant Collateral, if any, to the payment to the
Pledgor or as a court of competent jurisdiction may direct, of any surplus then
remaining.

               As used in this Article 5, "proceeds" of Collateral shall mean
cash, securities and other property realized in respect of, and distributions in
kind of, Collateral, including any

                                       11
<PAGE>   15

property received under any bankruptcy, reorganization or other similar
proceeding as to the Pledgor or any issuer of, or account debtor other than the
Pledgor on, any of the Collateral.

                                    ARTICLE 6

                                 CERTAIN WAIVERS

               Section 6.01 Absolute Liens; Certain Waivers and Consents.

               (a) The Pledgor acknowledges hereby that the grant of the Liens
on the Collateral under this Agreement and its obligations under this Agreement
shall be absolute, irrevocable and unconditional under any and all circumstances
irrespective of, and the Pledgor hereby irrevocably waives any defense it may
now have or may hereafter acquire in any way relative to, any or all of the
following:

                           (vi) any amendment, modification, extension, renewal,
         waiver, acceleration or any other change of the time for payment or
         performance of, or the terms of, all or any part of the Secured
         Obligations (including any increase or decrease in the rate or rates of
         interest on all or any part of the Secured Obligations);

                           (vii) any amendment, modification, extension,
         renewal, waiver of, or any other change of the time for payment or
         performance under, any Loan Document or any agreement, security
         document, guarantee, approval, consent or other instrument with respect
         to all or any part of the Secured Obligations or any such other
         instrument or any term or provision of the foregoing;

                           (viii) any execution, delivery or performance of new
         or additional agreements, security documents, guarantees (including
         letters of credit) or other instruments in addition to, in exchange for
         or relative to any Loan Document, all or any part of the Secured
         Obligations or any collateral now or in the future serving as security
         for the Secured Obligations;

                           (ix) any acceptance or receipt of partial payments or
         performance on the Secured Obligations (including from the Pledgor),
         whether as a result of the exercise of any right, remedy, power or
         privilege or otherwise;

                           (x) any acceptance or receipt of any additional
         collateral for all or any part of the Secured Obligations (including
         from the Pledgor);

                           (xi) any illegality, invalidity or unenforceability
         of all or any part of the Secured Obligations, any Loan Document or any
         agreement, security document, guarantee or other instrument with
         respect to all or any part of the Secured Obligations;

                           (xii) any exchange, release, reconveyance,
         termination, waiver, abandonment, failure to perfect, substitution,
         transfer, enforcement of, or foreclosure

                                       12
<PAGE>   16

         upon, any collateral, security documents or guarantees (including the
         obligations of the Pledgor) for or with respect to all or any part of
         the Secured Obligations;

                           (xiii) any other condition, event or circumstance
         that might otherwise constitute a defense available to, or a discharge
         of, the Pledgor in respect of its obligations under this Agreement
         (other than the indefeasible payment in full of all Secured
         Obligations);

                           (xiv) any counterclaim, set-off or other claim which
         the Pledgor has or alleges to have with respect to all or any part of
         the Secured Obligations;

                           (xv) any failure of any Secured Party to comply with
         Applicable Laws in connection with the sale or other disposition of the
         Collateral for all or any part of the Secured Obligations;

                           (xvi) any change, restructuring or termination of the
         corporate structure or existence of the Pledgor or any of its
         Affiliates or Subsidiaries;

                           (xvii) any other circumstance (including, without
         limitation, any statute of limitations) or any existence of or reliance
         on any representation by any Secured Party that might otherwise
         constitute a defense available to, or a discharge of, the Pledgor or
         any other grantor or a third party grantor of a security interest;

                           (xviii) any other circumstance that might otherwise
         constitute a defense available to, or a discharge of, the Pledgor or a
         third party grantor of a security interest; or

                           (xix) any combination of the actions set forth in
         this Section 6.01(a).

                  (b) The Pledgor expressly waives, for the benefit of the
Secured Parties, all presentments, demands for payment or performance, notices
of nonpayment or nonperformance, protests, notices of protest, notices of
dishonor and all other notices or demands of any kind or nature whatsoever with
respect to the Secured Obligations, and all notices of acceptance of this
Agreement or of the existence, creation, incurring or assumption of new or
additional Secured Obligations. The Pledgor further expressly waives the benefit
of any and all statutes of limitation and any and all laws providing for the
exemption of property from execution or for valuation and appraisal upon
foreclosure, to the maximum extent permitted by applicable law.

                  Section 6.02 Understanding With Respect to Waivers and
Consents. The Pledgor warrants and agrees that each of the waivers and consents
set forth in this Agreement are made voluntarily and unconditionally after
consultation with outside legal counsel and with full knowledge of their
significance and consequences, with the understanding that events giving rise to
any defense or right waived may diminish, destroy or otherwise adversely affect
rights which the Pledgor otherwise may have against the Collateral Agent, any
other Secured Party or any other Person or against any collateral. If,
notwithstanding the intent of the parties that the terms of this Agreement shall
control in any and all circumstances, any such waivers or consents are

                                       13
<PAGE>   17

determined to be unenforceable under applicable law, such waivers and consents
shall be effective to the maximum extent permitted by law.

                  Section 6.03 Subrogation. The Pledgor hereby waives, until the
indefeasible payment and satisfaction in full of all of the Secured Obligations,
any right, remedy, power or privilege, such as any right of subrogation,
contribution or indemnity or related remedy, power or privilege, arising
(whether by contract or operation of law, including under the Bankruptcy Code)
against any License Subsidiary or any other Person or any collateral by reason
of any payment or other performance pursuant to the provisions of this Agreement
and, if any amount is paid to the Pledgor on account of those rights, remedies,
powers or privileges, it will hold that amount in trust for the benefit of, and
pay the same over to, the Collateral Agent (for the benefit of the Secured
Parties) on account of the Secured Obligations. The Pledgor understands that the
exercise by any Secured Party of any right, remedy, power or privilege that it
may have under the Loan Documents, security agreement, guarantee, letter of
credit or other instrument for or relative to all or any part of the Secured
Obligations or otherwise may affect or eliminate the Pledgor's right of
subrogation or similar recovery against any License Subsidiary or any other
Person or against any collateral and that the Pledgor may therefore incur
partially or totally nonreimbursable liability under this Agreement.
Nevertheless, the Pledgor hereby authorizes and empowers the Secured Parties to
exercise, in its or their sole discretion, any combination of those rights,
remedies, powers and privileges.

                  Section 6.04 Reinstatement. The obligations of the Pledgor
under this Agreement shall be automatically reinstated if and to the extent that
for any reason any payment by or on behalf of the Pledgor or any other Person or
any other application of funds (including the proceeds of any collateral for all
or any part of the Secured Obligations) in respect of all or any part of the
Secured Obligations is rescinded or must be otherwise restored by any holder of
those Secured Obligations, whether as a result of any proceedings in bankruptcy,
reorganization or otherwise and the Pledgor agrees that it will indemnify each
Secured Party on demand for all reasonable costs and expenses (including
reasonable fees and expenses of counsel) incurred by that Secured Party in
connection with that rescission or restoration.

                  Section 6.05 Remedies. The Pledgor hereby agrees that the
Secured Obligations may be declared to be forthwith (or may become
automatically) due and payable as provided in Section 8.2 of the Loan Agreement
for purposes of this Agreement, notwithstanding any stay, injunction or other
prohibition preventing such declaration and that, in the event of that
declaration, those obligations shall forthwith become due and payable for
purposes of this Agreement.

                  Section 6.06 Separate Action. The Administrative Agent or the
Collateral Agent may bring and prosecute a separate action or actions against
the Pledgor, whether or not the Pledgor, any of its Subsidiaries or any other
Person is joined in any such action or a separate action or actions are brought
against the Pledgor, any of its Subsidiaries or any other Person or any
collateral for all or any part of the Secured Obligations. The obligations of
the Pledgor under, and the effectiveness of, this Agreement are not conditioned
upon the existence or

                                       14

<PAGE>   18

continuation of any other guarantee or any letter of credit for or relative to
all or any part of the Secured Obligations.

                  Section 6.07 Subordination of Indebtedness of License
Subsidiaries. The Pledgor agrees that any Indebtedness now or in the future owed
to it by any License Subsidiary is hereby subordinated in right of payment to
the prior payment in full in cash of the Secured Obligations on the terms set
forth in the Loan Agreement. Without limiting the generality of the foregoing,
if the Collateral Agent so requests, any such Indebtedness shall be collected,
enforced and received by the Pledgor as trustee for the Collateral Agent and
shall be paid over to the Collateral Agent (for the benefit of the Secured
Parties) in kind on account of the Secured Obligations. If, after the Collateral
Agent's request, the Pledgor fails to collect or enforce any such indebtedness
or to pay the proceeds of that indebtedness to the Collateral Agent, the
Collateral Agent as the Pledgor's attorney-in-fact may do such acts and sign
such documents in the Pledgor's name and on the Pledgor's behalf as the
Collateral Agent considers necessary or desirable to effect that collection,
enforcement or payment, the Collateral Agent being hereby appointed the
Pledgor's attorney-in-fact for that purpose (and such appointment is irrevocable
and is coupled with an interest).

                  Section 6.08 Certain Limitations. In any action or proceeding
involving any state corporate law or any state or federal bankruptcy,
insolvency, reorganization or other law affecting the rights of creditors
generally, if the obligations of the Pledgor under this Agreement would
otherwise be held or determined to be void, invalid or unenforceable or if the
claims of the Secured Parties in respect of those obligations would be
subordinated to the claims of any other creditors on account of the Pledgor's
liability under this Agreement, then, notwithstanding any other provision of
this Agreement to the contrary, the amount of that liability shall, without any
further action by the Pledgor, any Secured Party or any other Person, be
automatically limited and reduced to the highest amount that is valid and
enforceable and not subordinated to the claims of other creditors as determined
in such action or proceeding.

                  Section 6.09 Revocation. To the fullest extent permitted by
law, the Pledgor hereby waives all rights it may have to revoke its obligations
under this Agreement.

                                    ARTICLE 7

                                  MISCELLANEOUS

                  Section 7.01 Collateral Agent; Certain Transfers. As provided
in Section 9.1 of the Loan Agreement, each Lender has appointed Citibank, N.A.
as its Collateral Agent for purposes of this Agreement. In that capacity,
Citibank, N.A. shall be entitled to all the rights and benefits accorded the
Collateral Agent (including the ability to rely on express directions of the
Required Lenders) by Article 9 of the Loan Agreement. Article 9 of the Loan
Agreement is incorporated herein by reference and made a part hereof and shall
apply to this Agreement mutatis mutandis as if set forth in this Agreement.
Following the payment in full of all Secured Obligations outstanding under the
Loan Agreement and the termination or expiration of the

                                       15
<PAGE>   19

Commitments, the provisions of Article 9 of the Loan Agreement shall be deemed
to continue in full force and effect for the benefit of the Collateral Agent
under this Agreement.

                  Section 7.02 Notices. All notices, requests and other
communications provided for in this Agreement shall be given or made in writing
and delivered by hand or courier service, mailed by certified or registered mail
or sent by telecopy to the intended recipient as specified below or, as to any
party, at such other address as is designated by that party in a notice to each
other party. All notices and other communications given to any party hereto in
accordance with the provisions of this Agreement, when hand delivered or
telecopied shall be deemed to have been given when hand delivered or telecopied
respectively, and when sent by regular mail, postage prepaid, return receipt
requested or international air courier, shall be deemed to have been given five
(5) days after the date of deposit in the mails or with the international air
courier, respectively, provided that any such notice or communication to the
Collateral Agent shall be deemed to have been given only on the date of receipt.

                  To the Pledgor:

LEAP WIRELESS INTERNATIONAL, INC.
10307 Pacific Center Court.
San Diego, California 92121
Attn: General Counsel
Fax: (858) 882-6040
Phone: (858) 882-6000

To the Collateral Agent:

CITIBANK, N.A., as Collateral Agent
Citibank Agency & Trust
111 Wall Street, 14th Floor
New York, NY  10043
Attn: Donna White, Assistant Vice President
Fax: (212) 657-3872
Phone: (212) 657-5252

                  Section 7.03 Expenses, Etc. The Pledgor will pay all
out-of-pocket expenses (including reasonable counsels' fees and expenses) of the
Collateral Agent and each other Secured Party in connection with any enforcement
or collection proceeding (including any bankruptcy, reorganization,
restructuring, "work out" or other similar proceeding) as to any of the
obligations of the Pledgor under this Agreement, the negotiation of any
restructuring or "work out" (whether or not consummated) or the enforcement of
this Section 7.03. All amounts due under this Agreement not paid when due shall
bear interest until paid at a rate per annum equal to the Post-Default Rate.

                  Section 7.04 Waiver. No failure or delay by the Collateral
Agent or any other Secured Party in exercising any remedy, right, power or
privilege under this Agreement or any

                                       16
<PAGE>   20

other Loan Document shall operate as a waiver of that remedy, right, power or
privilege, nor shall any single or partial exercise of that remedy, right, power
or privilege preclude any other or further exercise of that remedy, right, power
or privilege or the exercise of any other remedy, right, power or privilege. The
remedies, rights, powers and privileges provided by this Agreement are
cumulative and not exclusive of any remedies, rights, powers or privileges
provided by the other Loan Documents or by law.

                  Section 7.05 Amendments, Etc. No provision of this Agreement
may be waived, modified or supplemented except by an instrument in writing
signed by the Pledgor and the Collateral Agent (acting at the request or with
the consent of the Required Lenders). Any modification, supplement or waiver
shall be for such period and subject to such conditions as shall be specified in
the written instrument effecting the same and shall be binding upon each Secured
Party and the Pledgor, and any such waiver shall be effective only in the
specific instance and for the purpose for which given.

                  Section 7.06 Continuing Security Interest; Assignments Under
the Loan Agreement; Successors and Assigns.

(a) This Agreement shall (subject to Section 2.07) create a continuing
first-priority Lien in the Collateral and shall (a) be binding upon the Pledgor,
its successors and assigns, and (b) inure, together with the rights and remedies
of the Collateral Agent hereunder, to the benefit of the Secured Parties and
their respective successors, transferees and assigns. Without limiting the
generality of the foregoing clause (b), any Lender may assign or otherwise
transfer all or any portion of its Loans under the Loan Agreement to any
Eligible Assignee under Section 10.4(b) of the Loan Agreement, and such Eligible
Assignee shall thereupon become vested with all the benefits in respect thereof
granted to such Lender herein or under the other Loan Documents, in each case as
provided in Section 10.4(b) of the Loan Agreement.

(b) This Agreement shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and assigns. The Pledgor may not assign
or transfer its rights or obligations under this Agreement without the prior
written consent of the Collateral Agent (acting at the request or with the
consent of the Required Lenders).

                  Section 7.07 Survival. Each representation and warranty made,
or deemed to be made by a notice of any extension of credit, in or pursuant to
this Agreement shall survive the making or deemed making of that representation
and warranty, and no Secured Party shall be deemed to have waived, by reason of
making any extension of credit, any Default that may arise by reason of that
representation or warranty proving to have been false or misleading,
notwithstanding that such or any other Secured Party may have had notice or
knowledge or reason to believe that such representation or warranty was false or
misleading at the time that extension of credit was made.

                  Section 7.08 Agreements Superseded. This Agreement (together
with the Loan Agreement) supersedes all prior agreements and understandings,
written or oral, among the parties with respect to the subject matter of this
Agreement.

                                       17
<PAGE>   21

                  Section 7.09 Severability. Any provision of this Agreement
that is prohibited or unenforceable in any jurisdiction shall, as to that
jurisdiction, be ineffective to the extent of that prohibition or
unenforceability without invalidating the remaining provisions of this
Agreement, and any such prohibition or unenforceability in any jurisdiction
shall not invalidate or render unenforceable that provision in any other
jurisdiction.

                  Section 7.10 Captions. The table of contents, captions and
section headings appearing in this Agreement are included solely for convenience
of reference and are not intended to affect the interpretation of any provision
of this Agreement.

                  Section 7.11 Counterparts. This Agreement may be executed in
any number of counterparts, all of which taken together shall constitute one and
the same instrument, and any of the parties to this Agreement may execute this
Agreement by signing any such counterpart. Delivery of an executed counterpart
of a signature page to this Agreement by hand or by telecopy shall be effective
as the delivery of a fully executed counterpart of this Agreement.

                  Section 7.12 Governing Law; Submission to Jurisdiction.

                  (a) (a) This Agreement shall be construed in accordance with
and governed by the law of the State of New York.

                  (b) (b) Each party hereto hereby irrevocably and
unconditionally submits, for itself and its property, to the nonexclusive
jurisdiction of the Supreme Court of the State of New York sitting in New York
County and of the United States District Court of the Southern District of New
York, and any appellate court from any thereof, in any action or proceeding
arising out of or relating to this Agreement, or for recognition or enforcement
of any judgment, and each of the parties hereto hereby irrevocably and
unconditionally agrees that all claims in respect of any such action or
proceeding may be heard and determined in such New York State court or, to the
extent permitted by law, in such Federal court. Each of the parties hereto
agrees that a final judgment in any such action or proceeding shall be
conclusive. Nothing in this Agreement shall affect any right that any party
hereto may otherwise have to bring any action or proceeding relating to this
Agreement against any other party or its properties in the courts of any
jurisdiction.

                  (c) (c) The Pledgor hereby irrevocably and unconditionally
waives, to the fullest extent it may legally and effectively do so, any
objection which it may now or hereafter have to the laying of venue of any suit,
action or proceeding arising out of or relating to this Agreement in any court
referred to in Section 7.12(b). Each of the parties hereto hereby irrevocably
waives, to the fullest extent permitted by law, the defense of an inconvenient
forum to the maintenance of such action or proceeding in any such court.

                  (d) (d) The Pledgor hereby agrees that service of all writs,
process and summonses in any such suit, action or proceeding brought in the
State of New York may be made upon CSC Networks, presently located at 80 State
Street, Albany, NY 12207, U.S.A. (the "Process Agent"), and the Pledgor hereby
confirms and agrees that the Process Agent has been duly and irrevocably
appointed as its agent and true and lawful attorney-in-fact in its name, place

                                       18
<PAGE>   22

and stead to accept such service of any and all such writs, process and
summonses, and agrees that the failure of the Process Agent to give any notice
of any such service of process to the Pledgor shall not impair or affect the
validity of such service or of any judgment based thereon. Each party to this
Agreement further irrevocably consents to service of process in the manner
provided for written notices in Section 7.02. Nothing in this Agreement will
affect the right of any party to this Agreement to serve process in any other
manner permitted by law.

                  Section 7.13 WAIVER OF JURY TRIAL. EACH OF THE PLEDGOR AND THE
COLLATERAL AGENT (ON BEHALF OF ITSELF AND EACH OTHER SECURED PARTY), WAIVES TO
THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL
BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR
RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY (WHETHER
BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES
THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED,
EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF
LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT
AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY,
AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 7.13.

                  Section 7.14 FCC CONSENT. Notwithstanding anything in this
Agreement which may be construed to the contrary (including Section 2.04), no
action shall be taken by the Collateral Agent or the Secured Parties with
respect to the foreclosure on, sale, transfer or disposition of, or control of,
the Collateral, except in compliance with the FCC Laws.

                                       19
<PAGE>   23

                  IN WITNESS WHEREOF, the parties have caused this Agreement to
be duly executed and delivered as of the day and year first above written.

LEAP WIRELESS INTERNATIONAL, INC.

                                        By: /s/ THOMAS WILLARDSON
                                           ------------------------------------
                                        Printed Name: Thomas Willardson
                                                     --------------------------
                                        Title: Senior Vice President & Treasurer
                                               ---------------------------------
<PAGE>   24

CITIBANK, N.A., as the Collateral Agent

                                         By: /s/ JOHN J. BYRNES
                                            -----------------------------------
                                         Printed Name: John J. Byrnes
                                                      -------------------------
                                         Title: Vice President
                                               --------------------------------
<PAGE>   25

                                                                         ANNEX 1

                      PLEDGED STOCK IN LICENSE SUBSIDIARIES

1.       [Legal Name of the Pledgor]

2.       [Address of the Pledgor's chief executive office]

3.       [The Pledgor's Federal Tax Identification Number]

         CAPITAL STOCK

1.       [Legal Name of License Subsidiary]

2.       [Legal form and jurisdiction of incorporation]

3.       [Description of the License held by such License Subsidiary]

<TABLE>
<CAPTION>

                                               Number and
          Number of            Registered       Class of        Percentage
     Issuer   Certificates        Owner          Shares          of Shares
     ------   ------------        -----          ------          ---------
     <S>      <C>              <C>             <C>              <C>

</TABLE>

         LIMITED LIABILITY COMPANY MEMBERSHIP INTERESTS

1.       [Legal Name of License Subsidiary]

2.       [Legal form and jurisdiction of incorporation]

3.       [Description of the License held by such License Subsidiary]

<TABLE>

                                              Number and
          Number of            Registered     Class of Membership        Percentage of
     Issuer   Certificates        Owner       Interests                  Membership Interests
     ------   ------------        -----       ---------                  --------------------
     <S>      <C>              <C>            <C>                        <C>
</TABLE>

         PARTNERSHIP INTERESTS

1.       [Legal Name of License Subsidiary]

<PAGE>   26

2.       [Legal form and jurisdiction of incorporation]

3.       [Description of the License held by such License Subsidiary]

<TABLE>

                                               Percentage of General
         Number of           General or        or Limited Partnership
   Issuer   Certificates     Limited Partner   Interests
   ------   ------------     ---------------   ---------
   <S>      <C>              <C>               <C>

</TABLE>

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