Document:

SECONDMENT AGREEMENT

     THIS SECONDMENT AGREEMENT (the "Secondment Agreement") is entered into as
of April 3, 2000 (the "Effective Date"), by and among Bell Atlantic Corporation,
a Delaware Corporation ("Bell Atlantic"); Vodafone AirTouch Plc, an English
public limited company (and, together with the Vodafone Affiliates, "Vodafone")
and together with Bell Atlantic, the "Partners" (and each, individually, a
"Partner"); and Cellco Partnership, a Delaware general partnership ("Cellco")
and together with Bell Atlantic and Vodafone, the "Parties" (and each,
individually, a "Party");

     WHEREAS, Bell Atlantic and Vodafone have entered into that certain U.S.
Wireless Alliance Agreement dated as of September 21, 1999 (the "Alliance
Agreement"), to enable Bell Atlantic and Vodafone to realize economies of scale
and scope and other efficiencies in the operation of certain communication
businesses by coordinating wireless services and owning, operating, managing,
maintaining and constructing cellular systems, personal communications systems
and other wireless communications systems;

     WHEREAS, such joint venture shall in part consist of the partnership that
is Cellco, the formation and operation of which is set forth in the Amended and
Restated Agreement of Limited Partnership (the "Partnership Agreement") dated
as of July 1, 1995, as it may be amended from time to time;

     WHEREAS, the Alliance Agreement contemplates a "Stage I Closing" under
which Vodafone will contribute certain of its wireless assets, and become a
partner in Cellco after the amendment of the current Partnership Agreement
(following which the joint venture shall be referred to as the "Partnership");
and a "Stage II Closing," upon which additional assets will be contributed to
the Partnership by Vodafone, Bell Atlantic, or both entities;

     WHEREAS, certain employees of Vodafone may provide services to the
Partnership following the Stage I Closing and, possibly, the Stage II Closing;
and

     WHEREAS, the Parties wish to enter into an agreement relating to the
provision and transfer of employees to the Partnership.

     NOW, THEREFORE, in consideration of the mutual covenants and agreements
set forth herein, the sufficiency of which is hereby acknowledged, the Parties
hereto, intending to be legally bound, agree as follows:

<PAGE>

                                   ARTICLE 1
                                  DEFINITIONS

"Effective Date" means the date of the Stage I Closing.

"Entity" means any corporation, firm, unincorporated organization, association,
partnership, limited liability company, trust (inter vivos or testamentary),
estate of a deceased, insane or incompetent individual, business trust, joint
stock company, joint venture or other organization, entity or business, whether
acting in an individual, fiduciary or other capacity, or any Governmental
Authority.

"Governmental Authority" means any federal, state, territorial, county,
municipal, local or other government or governmental agency or body or any
other type of regulatory body, whether Domestic or foreign, including without
limitation, the FCC and the FAA.

"Indemnified Damages" means any and all judgments, interest on such judgments,
fines, penalties, charges, costs, amounts paid in settlement, expenses and
reasonable attorneys' fees incurred in connection with any action, claim, suit,
inquiry, proceeding, investigation or appeal taken from the foregoing by or
before any court of governmental, administrative or other regulatory agency,
body or commission, whether pending or threatened, and whether or not the
Partnership is a party thereto.

"Loaned Employee" means a Vodafone Employee on the payroll of Vodafone who
provides services to the Partnership pursuant to this Secondment Agreement, or
a Vodafone Employee on an approved leave of absence or absent due to excused
sickness or short-term disability, to the extent such individual has
reinstatement rights, assuming that had the individual been reinstated, the
individual would have been a "Vodafone Employee."

"Partnership" means Cellco, after the amendment and restatement of the current
Cellco Partnership Agreement and the consummation of the Stage I Closing.

"Person" means any natural person or Entity.

"Secondment Ending Date" means the date on which the Secondment arrangement
ends. The date is December 31, 2000, if the Stage I Closing occurs on or before
September 30, 2000, or December 31, 2001, if the Stage I Closing occurs after
September 30, 2000.

"Secondment Period" means the period during which Vodafone Employees who would
otherwise have commenced employment with the Partnership as of the Stage I
Closing provide services to the Partnership on a seconded basis pursuant to
this Secondment Agreement. The Secondment Period ends on the Secondment Ending
Date.

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"Stage I Closing" is the date of the consummation of the first step of the
transaction under which Vodafone contributes certain wireless assets to, and
becomes a partner in, the Partnership.

"Stage II Closing" is the date of consummation of the second step of the
transaction. It is contemplated that on this date, additional wireless assets
would be contributed by the Parties to the Partnership. The Stage II Closing is
intended to occur on or before the earlier of the first anniversary of the
Stage I Closing, and the tenth Business Day after the date Bell Atlantic either
acquires GTE corporation ("GTE"), or the date Bell Atlantic no longer has any
right to acquire GTE.

"Vodafone Affiliate" means, with respect to Vodafone, any other Person directly
or indirectly controlling, controlled by, or under common control with,
Vodafone; and "control" means (i) the ownership of more than 50% of the voting
securities or other voting interests of another Person, or (ii) the possession,
directly or indirectly, of the power to direct or cause the direction of the
management and policies of such Person, whether through the ownership of voting
shares, by Contract or otherwise; provided, however, that the Partnership from
and after the Stage I Closing and PrimeCo Personal Communications, L.P.
("PrimeCo") shall not be deemed to be an Affiliate of Vodafone for purposes of
this Agreement.

"Vodafone Employees" means, as of the applicable date referenced in the
applicable provisions of the Alliance Agreement, the Disclosure Schedules
(whenever delivered) and the various agreements attached to the Alliance
Agreement as Exhibits, (i) each common law employee of Vodafone which, by
itself or by means of any entity controlled by it, is contributing Conveyed
Assets to the Partnership, if such employee holds a position, substantially all
of the duties and responsibilities of which pertain to one or more of the
Conveyed Assets; (ii) each common law employee of the Vodafone Conveyed
Subsidiaries or Vodafone Conveyed Partnerships, if such employee holds a
position, substantially all of the duties and responsibilities of which pertain
to the Vodafone Wireless Business; (iii) any common law employee of Vodafone
(including AirTouch Support Services, Inc.), if such employee holds a position
substantially all of the duties and responsibilities of which pertain to the
Vodafone Wireless Business; and (iv) any common law employee on an approved
leave of absence or absent due to excused sickness or short-term disability, to
the extent that such individual has reinstatement rights, if such employee
would otherwise be considered a Vodafone Employee; provided, however, that the
term "Vodafone Employees" shall (A) exclude any individual employed by AirTouch
International or any subsidiary of that company; (B) exclude any individual
employed by AirTouch Communications, Inc. if such individual is located in San
Francisco or Walnut Creek, except for up to the 50 individuals as mutually
agreed upon by the Parties and identified on Attachment A hereto; and (C)
exclude any individual employed by AirTouch Satellite Services, Inc., or any
Vodafone Affiliate which is not a corporation or partnership owned by AirTouch
Communications, Inc. and any individual who is a director or member of the
executive committee of Vodafone.

Notwithstanding the foregoing, the Parties recognize that issues relating to
organizational structure may impact this definition and agree to continue to

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<PAGE>

cooperate in good faith if amendment of this definition is required by such
organizational changes and/or changes in the Alliance Agreement. With respect
to the Stage I Closing, the Secondment Agreement only applies to Vodafone
Employees who qualify as such with respect to the contributed assets following
such Closing.

     Any other defined terms shall have the meaning set forth in the Alliance
Agreement.

                                   ARTICLE 2
                           SECONDED EMPLOYEE SERVICES

     2.1 Employee Services to Partnership. Until the Secondment Ending Date,
the Partnership shall engage Vodafone Employees as staff of the Partnership.
The seconding program shall operate as follows:

     (a) Seconded employees will remain employees of Vodafone, but will perform
services exclusively for the Partnership; provided, however, that Vodafone
Employees identified on the Vodafone payroll records as employees of ATC-SHRS
will be seconded to, and perform services exclusively for, AirTouch Support
Services, LLC (or any successor thereto), which will be a wholly-owned
subsidiary of the Partnership after the Stage I Closing.

     (b) All individuals who meet the definition of Vodafone Employee on the
date of the Stage I Closing or any subsequent closing or contribution of
Conveyed Assets to the Partnership and have not received prior written notice
of non-selection shall be seconded. Cellco management shall determine the
number of employees (including Vodafone Employees) needed to staff the
Partnership.

     (c) Cellco management may designate an employee of Vodafone who is not
otherwise a "Vodafone Employee" as a Vodafone Employee for purposes of this
Secondment Agreement, in which case the individual shall be deemed to be a
Vodafone Employee for all purposes of this Agreement. Such designation shall be
made in writing by the CEO of Cellco or his delegate.

     (d) In the event of any question concerning whether an employee of
Vodafone is a "Vodafone Employee" for purposes of this Agreement, the decision
of the CEO of Cellco or his delegate shall be final and binding upon the
parties.

     (e) Newly hired employees after the Stage I Closing at locations where
Vodafone Employees perform services shall, at the designation of the CEO of
Cellco or his delegate, be treated either as a Vodafone Employee and covered by
this Secondment Agreement, or as a Partnership employee, in which case this
Secondment Agreement shall not apply to the terms and conditions of their
employment.

     2.2 Reimbursement for Relocation. If services in a position at the
Partnership by a Loaned Employee requires relocation of the Loaned Employee,

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the Partnership shall reimburse Vodafone for the cost of such relocation
consistent with the terms of Vodafone's relocation plan that is generally
applicable to all employees of Vodafone as in effect on the date of the
relocation.

                                   ARTICLE 3
                           TERMS OF LOANED EMPLOYMENT

     3.1 Loaned Employee Services. Loaned Employees shall remain on the payroll
of a Vodafone Affiliate throughout the Secondment Period while providing
services to the Partnership. The Partnership shall direct and control the
Loaned Employees in the manner and method of performing services for the
Partnership, provided that the Partnership shall not direct any Loaned Employee
to act or omit to act where such act or omission would violate applicable law
or sound and prudent industry practices. Vodafone makes no warranties or
representations concerning the services of the Loaned Employees, whether
express or implied. Until the end of the Nonsolicitation Period, Vodafone shall
not Solicit for hire any Loaned Employee without the written consent of the
Vice President of Human Resources of the Partnership. Until the end of the
Nonsolicitation Period, neither Bell Atlantic nor the Partnership shall Solicit
any Retained Vodafone Employee without the written consent of the Vice
President of Human Resources of AirTouch Communications, Inc.

     3.2 Cost Reimbursement. The Partnership shall reimburse Vodafone for the
salary or wages and the employee benefits applicable to each Loaned Employee on
the basis of the actual costs shown for such items on Vodafone's books in
accordance with United States Generally Accepted Accounting Principles ("U.S.
GAAP"), including accruals for such costs, for each payroll cycle. For
administration and reconciliation of the cost reimbursement, Vodafone shall
segregate all Loaned Employees from all other Vodafone employees.

     (a) For this purpose, "salary or wages" shall mean the following amounts
paid after the date of the Stage I Closing: (i) any salary, wages, commissions,
and overtime pay, (ii) vacation pay, (iii) payments received during a paid
leave of absence, (iv) any short-term or long-term cash incentives and (v) any
retention incentives paid with Partnership approval in accordance with Section
5.5(e) of the Alliance Agreement.

     (b) For this purpose, "employee benefits" means the employee benefit
programs available to the Loaned Employees as employees of Vodafone.

     (c) Notwithstanding (a) and (b), the Partnership shall not reimburse
Vodafone for any equity compensation (including stock or value appreciation
rights) in accordance with Section 5.5(b)(iv) of the Alliance Agreement, or,
except as set forth in Section 3.9, any severance.

     (d) Notwithstanding (a) and (b), the Partnership shall not reimburse
Vodafone for a compensation or benefit liability or obligation with respect to
a period of service prior to the first date on which the Loaned Employee
rendered services to the Partnership or otherwise was properly classified as a

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<PAGE>

Loaned Employee. By way of example, if the Stage I Closing were to occur on
April 30, 2000, and a short term bonus was determined as payable for calendar
year 2000 to Loaned Employees, Vodafone would be responsible for 100% of the
short term bonus attributable to the 4/12ths of the year prior to the Stage I
Closing, and the Partnership would be responsible for the other 8/12ths.

     (e) Notwithstanding (a) and (b), if the Partnership has incurred an
expense for a particular benefit or item of compensation for a Loaned Employee,
it shall not pay or assume liability for such expense a second time. By way of
example, any charges for health services rendered to Loaned Employees or their
covered dependents prior to the Secondment Ending Date shall not be the
responsibility of the Partnership if the cost of coverage would have been
covered in an earlier invoice.

     (f) Base pay shall continue to be administered in the normal course of
business for any Loaned Employee. Vodafone will base its 2000 merit increase
budget and any associated equity adjustments on its analysis of competitive
practice and business need; provided, however, any aggregate increase above
5.5% of cash compensation shall not be reimbursed by the Partnership. If the
Secondment Period extends into 2001, the Partnership will appoint a committee
with participation from both Parties to determine merit and equity budgets
based on competitive practice and business needs.

     (g) Cash-based short term and long term incentive plans shall continue
without change for the Secondment Period, except as follows: (i) the
Partnership may offer and a Vodafone Employee may accept, an offer of
secondment at a base salary and short term incentive target determined by the
Partnership; and (ii) the CEO of the Partnership may change the short term
incentive numeric targets for the year 2000 performance measures and/or, if
existing measures are impracticable to measure as a result of organizational
changes, the performance measures themselves. With respect to the long term
incentive plan, the Parties agree to cooperate and use best efforts to address
the treatment of the Vodafone long term cash incentive plan for executives who
transfer to the Partnership; provided, however, Vodafone shall make no changes
to such plan without the written consent of the CEO of the Partnership.

     (h) On a semi-monthly basis, five days after the end of a payroll cycle,
Vodafone shall submit an invoice to the Partnership for the cost reimbursements
described in this Section 3.2. The invoice shall reflect actual costs shown on
Vodafone's books in accordance with U.S. GAAP, including accruals for such
costs and any credits for pension costs, for the applicable payroll period
using the prior period as an estimate of the mid-month invoice. The Partnership
shall remit payment to Vodafone by wire transfer within 10 days after receiving
the invoice. Upon 10 days prior notice, the Partnership shall have the right to
audit the charges and accruals indicated on an invoice at a time mutually
agreed upon by the Partnership and Vodafone, which right to audit shall
continue for 90 days after the end of the Secondment Period.

     3.3 Employee Benefit Programs. Loaned Employees shall continue to
participate in (or, in the case of a new hire, shall participate in) the
employee benefit programs available to them as employees of Vodafone. Loaned
Employees shall also be subject to the Vodafone policies regarding holidays,
leaves of absence, FMLA and vacation. The Partnership shall in its discretion
determine work policies and work schedules at designated locations for all
Loaned Employees. All Loaned Employees shall receive and shall comply with the
Partnership's Code of Business Conduct as a condition of their loaned
employment. Nothing in this Article 3 shall preclude the Parties from studying
the efficacy of implementing short-term and long-term incentive objectives
common to Vodafone and the Partnership.

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<PAGE>

     3.4 Employee Benefit Programs Information. Vodafone and the Partnership
shall provide each other in a timely manner with reasonably requested data for
annual coverage and nondiscrimination testing for affected employee benefit
programs and any other reasonably requested information necessary generally to
administer their respective employee benefit programs in accordance with the
Internal Revenue Code and ERISA.

     3.5 Workers' Compensation Coverage. Vodafone shall maintain workers'
compensation insurance and employer's liability insurance as required by
applicable law covering the Loaned Employees. Alternatively, if permitted by
applicable law, Vodafone may adopt self-administered claims programs covering
its employees, including Loaned Employees, in lieu of such insurance coverage;
provided that Vodafone shall indemnify and hold the Partnership harmless
against payment of any amounts that would otherwise have been paid by the
proceeds of such insurance.

     3.6 Indemnification from Benefit Liability. Vodafone shall indemnify and
hold the Partnership and each other Party harmless from and against any and all
Indemnified Damages which arise out of the Loaned Employees' participation in
any employee benefit program maintained by Vodafone.

     3.7 Indemnification from Employment Liability. Vodafone and the
Partnership shall advise each other as to matters which come to their
respective attention involving potential legal actions or regulatory
enforcement activity which involve the employment of Vodafone Employees after
the Stage I Closing which are related to the activities of either Party, and
shall promptly advise each other of legal actions or administrative proceedings
which are actually commenced. Vodafone and the Partnership agree to fully
cooperate with one another in the defense of any such action or proceeding
arising out of such a lawsuit or administrative proceeding, and further agree
not to oppose any intervention by the other Party to intervene in such action
or proceeding if only one of the parties is named. The defense and associated
costs of such action (except to the extent a party is otherwise entitled to
indemnification in another provision of this Agreement or of the Alliance
Agreement) arising out of services performed by any Loaned Employee after the
Stage I Closing and prior to the end of the Loaned Employee's loan assignment
period which are related to the activities of the Partnership shall be the
responsibility of the Partnership. In any event, except as otherwise provided
in the Secondment Agreement, Vodafone shall indemnify and hold the other
Parties and the Partnership harmless from and against any and all Indemnified
Damages which relate to the employment of Vodafone Employees with Vodafone
prior to the Stage I Closing.

     3.8 Ceiling on Incremental Costs. The incremental benefit costs, as
defined by Attachment B, attributable to secondment borne by the Partnership
shall be limited to $7,500,000. For purposes of determining this cost, the

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benefits of a Loaned Employee and a Partnership employee during the Secondment
Period shall be compared in the following manner within 60 days after the
Secondment Ending Date:

     (a) The actual aggregate benefit book cost, determined in accordance with
U.S. GAAP, during the Secondment Period for the Loaned Employees shall be
divided by the average number of Loaned Employees during the Secondment Period.

     (b) The actual aggregate benefit book cost, determined in
accordance with U.S. GAAP, during the Secondment Period for the Partnership
employees shall be divided by the average number of Partnership employees
during the Secondment Period.

     (c) If the Secondment Period is less than 12 months, the period shall be
pro-rated.

     (d) The amount obtained in Section 3.8(b) above shall be subtracted from
the amount obtained in Section 3.8(a) above.

     (e) The amount obtained in Section 3.8(d) shall be multiplied by the total
number of Loaned Employees.

     (f) If the amount obtained in Section 3.8(e) is more than $7,500,000, the
Partnership shall not reimburse Vodafone for the excess, and shall be entitled
to a refund of any such excess previously paid.

     3.9 Severance. Each Party shall bear 100% of the costs of any severance
packages maintained by that Party with respect to a separation of an employee
of that Party which occurs prior to the date the affected employee commences
services to the Partnership as a Loaned Employee or a common law employee;
provided; that if a Vodafone Employee becomes entitled to severance payments or
benefits caused directly by the terms of a written offer of employment or
secondment with the Partnership or written notice authorized by the Partnership
to Vodafone that the individual will not receive any offer of employment or
secondment with the Partnership (followed by an actual separation from
service), or by other action in a process and manner authorized by the
Partnership, the cost of such severance shall be chargeable to the Partnership,
if, and to the extent, severance benefits are properly payable under the terms
of a written plan, agreement, or program maintained by the individual's
employer and for which the individual is eligible; and, provided further that,
notwithstanding the foregoing, the cost of severance payable to a Vodafone
Employee identified on Attachment A hereto shall be chargeable 50% to Bell
Atlantic and 50% to Vodafone. If severance otherwise becomes payable to a
Vodafone Employee by the action or inaction of any entity other than the
Partnership, the cost of such severance shall be borne by such entity.

     3.10 Modification to Employee Benefits. After the Alliance Agreement date
(September 21, 1999), neither Vodafone nor any partnership nor subsidiary that
Vodafone is conveying to the Partnership, nor any other Vodafone Affiliate
shall establish or implement any new compensation, benefit plan, or arrangement
covering Loaned Employees, extend any then existing Vodafone Benefit Plan or

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<PAGE>

increase pay or benefit levels under any then existing Vodafone Benefit Plan,
other than in the normal course of business consistent with past practice, or
with the Partnership's prior written consent. Notwithstanding the foregoing,
Vodafone shall be authorized to amend the Vodafone Pension Plan in 1999 and in
2000 to update the schedule of minimum pension benefits currently set forth in
Supplement F to the Plan, consistent with Vodafone's past practice and subject
to any applicable legal requirements, and to amend its stock option plans or
arrangements consistent with the Alliance Agreement.

                                   ARTICLE 4
                    TERMINATION OF LOANED EMPLOYEE SERVICES

     4.1 Termination by the Partnership. The Partnership, in its sole
discretion, may terminate the services of any Loaned Employee to the
Partnership at any time by providing written notice to the individual
designated by Vodafone for that purpose. The Partnership shall (a) further
reimburse Vodafone in an amount equal to the lesser of (i) the cost of
severance benefits actually paid to the employee, or (ii) the cost of severance
benefits that would have been paid to the employee if the employee had been a
participant in Vodafone's most generally applicable severance plan; and (b) the
Partnership shall indemnify and hold Vodafone harmless from and against any and
all Indemnified Damages which arise out of the employee's termination of
employment, except for claims for other vested benefits under the Vodafone
Employee Benefit Plans. Termination of the services of a Loaned Employee by the
Partnership shall also terminate such Loaned Employee's employment with
Vodafone.

     4.2 Termination by Vodafone. Vodafone may terminate a Loaned Employee only
with the permission of the CEO of the Partnership or his delegate, in which
case the Partnership shall be liable to reimburse Vodafone under Section 3.2.
Vodafone shall indemnify and hold the Partnership and each other Party harmless
from and against any and all Indemnified Damages which arise out of the Loaned
Employee's employment with Vodafone after the termination of secondment status
or which arise out of the termination of such employment, except as provided in
Section 4.1 or the preceding sentence. Nothing in this Secondment Agreement
shall preclude Vodafone from terminating the employment of a Loaned Employee
for cause at any time.

                                   ARTICLE 5
                                  PARTNERSHIP

     5.1 Terms of Employment for Partnership Employees. The Partnership shall
set the terms of employment for all of its own employees.

     5.2 Partnership Employee Benefit Programs. The Partnership shall develop
its own employee benefit programs for its own employees.

     5.3 AirTouch Cellular. In the event that the stock of AirTouch Cellular or
any other Vodafone subsidiary is contributed to the Partnership, to the extent
Vodafone provides employee benefits and/or salary or wages to employees of such
subsidiary after such stock contribution to the Partnership, the cost
reimbursement mechanism set forth in Section 3.2 of this Agreement shall apply
for purposes of determining the cost of such services provided by Vodafone.

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<PAGE>

                                   ARTICLE 6
                         DISSOLUTION OF THE PARTNERSHIP

     6.1 Treatment of Employees. Upon the dissolution of the Partnership,
provisions for the disposition and treatment of all Loaned Employees and
Partnership employees shall be included in the Partnership's plan of
liquidation.

     6.2 Written Notice. Any written notice required to be given under this
Secondment Agreement shall be hand-delivered to the applicable addressee or
sent certified mail return-receipt requested, postage-prepaid and accurately
addressed to the applicable addressee, as follows:

     If to Vodafone: Vodafone Plc, The Courtyard, 2-4 London Road, Newbury,
Berkshire RG141 JX, England, Attention: Stephen Scott, Fax No.:
011-44-1189-401-118

     with copies to: AirTouch Communications, Inc., One California Street, San
Francisco, California 94111, Attention: General Counsel.

     If to Cellco or the Partnership: Dennis F. Strigl, Bell Atlantic Mobile,
180 Washington Valley Road, Bedminster, New Jersey, 07921.

     with copies to: Mark Tuller, General Counsel, Bell Atlantic Mobile, 180
Washington Valley Road, Bedminster, New Jersey 07921.

     If to Bell Atlantic: Bell Atlantic Corporation, 1095 Avenue of the
Americas, 39th Floor, New York, New York 10036, Attention: General Counsel.

     6.3 Modification; Amendments; Waivers. This Secondment Agreement may be
modified only by a written instrument duly executed by each Party hereto. Any
waiver of any term or condition of this Secondment Agreement shall be effective
only if made in writing and only in the specific instance and for the purpose
for which given. No failure or delay on the part of any Party hereto in
exercising any right, power, or privilege under this Secondment Agreement shall
operate as a waiver thereof, nor shall any single or partial exercise of any
right, power, or privilege preclude any other or further exercise thereof or
the exercise of any other right, power or privilege.

                                   ARTICLE 7
                               GENERAL PROVISIONS

     7.1 Incorporation of Certain Provisions. The provisions of Section 5.5 of
the Alliance Agreement (Treatment of Employees) and Section 10.1 (Dispute
Resolution) are incorporated by this reference, made a part of this Secondment
Agreement and binding on the Parties as if fully set forth herein. All

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<PAGE>

references in such provisions to "Partners" or "Parties" shall be deemed to
include the Parties under this Agreement as well as all entities which the
Partners are authorized to bind hereunder.

     7.2 No Third Party Beneficiaries. No person other than the Parties to this
Agreement shall be entitled to enforce any of the provisions of this Agreement.

     7.3 General Indemnity. Each Partner shall indemnify and hold harmless the
other Partner from and against any and all Indemnified Damages which arise out
of any breach of any representation, warranty or obligation under this
Secondment Agreement for which the indemnifying Party thereof is responsible.
Each Party shall provide reasonable opportunity for each other Party to examine
all of its relevant records in order to verify compliance with the terms of
this Agreement.

     7.4 Rule of Interpretation. In the event of any conflict between the terms
of this Secondment Agreement and the terms of the Alliance Agreement, the terms
of the Alliance Agreement shall control.

     7.5 Survival. The obligations of the Partnership and of each Party shall
survive the termination of this Agreement.

     7.6 Counterparts. This Agreement may be executed in one or more
counterparts, each of which counterparts shall be deemed to be an original, and
all such counterparts shall constitute one and the same instrument.

     7.7 Severability. If any one or more of the provisions of this Secondment
Agreement shall be held to be invalid, illegal, or unenforceable, the validity,
legality and enforceability of the remaining provisions of this Secondment
Agreement shall not be affected thereby. To the extent permitted by applicable
law, each Party hereto waives any provision of law which renders any provision
of this Secondment Agreement invalid, illegal, or unenforceable in any respect.

     7.8 Headings. The descriptive headings contained in this Secondment
Agreement are for convenience and reference only, do not form a part of it, and
do not in any way modify interpret or construe the intentions of the Parties to
this Secondment Agreement.

     7.9 Choice of Law. This Secondment Agreement shall be governed by and
construed in accordance with the substantive laws of the State of Delaware,
without regard to choice of law principles.

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<PAGE>

     IN WITNESS WHEREOF, the Parties hereto have hereunto fixed their seals
this 3rd day of April, 2000, effective as of April 3, 2000.

BELL ATLANTIC CORPORATION

By: /s/ Frederic Salerno
    ---------------------------------
    Senior Executive Vice President
     and Chief Financial Officer

VODAFONE AIR TOUCH PLC

By: /s/ Arun Sarin
    ---------------------------------
    Chief Executive Officer

CELLCO PARTNERSHIP

By:      NYNEX PCS Inc.

Its:     Managing General Partner

By: /s/ David H. Benson
    ---------------------------------

                                      12TRANSITION SERVICES AGREEMENT

     This Transition Services Agreement (this "Agreement") is made and entered
into as of the Stage I Closing date under the Alliance Agreement (the
"Effective Date"), by and between Cellco Partnership, a Delaware general
partnership, for and on behalf of itself and its affiliates (collectively
referred to herein as "CELLCO"), and Vodafone AirTouch Plc, an English public
limited company, for and on behalf of itself and its affiliates (collectively
referred to herein as "VODAFONE"). CELLCO and VODAFONE are each referred to
herein as a Party, and collectively as the Parties.

                                R E C I T A L S

     WHEREAS, Vodafone AirTouch Plc and Bell Atlantic Corporation ("Bell
Atlantic") entered into the U.S. Wireless Alliance Agreement dated September
21, 1999, under which Vodafone AirTouch Plc and Bell Atlantic agreed to convey
certain assets to CELLCO (the "Alliance Agreement");

     WHEREAS, VODAFONE will continue to conduct business in the United States
after the Stage I Closing contemplated by the Alliance Agreement and defined in
the Alliance Agreement;

     WHEREAS, as a part of the Alliance Agreement it is contemplated that
VODAFONE will convey all right, title, and interest to certain assets to CELLCO
at the time of the Stage I Closing;

     WHEREAS, each Party will need certain services from the other during the
term hereof on the terms set forth below;

     NOW, THEREFORE, in consideration of the premises hereof and the mutual
promises contained herein and intending to be legally bound, the parties agree
as follows:

                                   ARTICLE I

                              TRANSITION SERVICES

     1.1 Transition Services. This Agreement sets forth the terms and
conditions for the provision by each Party to the other of various transition
services and products, as described herein and in Schedule A attached hereto
(the "Transition Services").

     1.2 Provision of Transition Services. To the extent commercially
reasonable, the Parties will work together and begin the process of migrating
off of the relevant Transition Service such that the completion of the
migration of the Transition Services shall occur as soon as possible after the
Effective Date. The Transition Services will

                                       1
<PAGE>

begin on the Effective Date and continue through the expiration of the Term, as
such term is defined in Section 2.1 below. The Party providing services shall
provide or cause to be provided each of the Transition Services for the time
set forth in Schedule A, except (a) as automatically modified by termination of
a Transition Service by a receiving Party in accordance with this Agreement,
(b) as otherwise agreed to by the parties in writing, or (c) until the
termination of this Agreement.

     1.3 Purchase of Additional or Modified Transition Services. From time to
time, one Party may request the other to provide additional or modified
Transition Services that are not described in Schedule A. The Party receiving
the request will use commercially reasonable efforts to accommodate any
reasonable requests, but is not bound to provide such additional or modified
services unless it agrees to do so.

     1.4 Joint Procurement. During and after the Term of this Agreement, as
CELLCO is negotiating volume purchase agreements for goods and services in
connection with the Transitional Services described in Schedule A that
VODAFONE's United States business may also wish to purchase, CELLCO will use
commercially reasonable efforts to permit VODAFONE's United States business to
purchase under such volume purchase agreements for use in the United States..
VODAFONE shall (i) periodically inform CELLCO of the types of such volume
purchase agreements in which it wishes to be included, (ii) be solely liable
for all obligations for its purchases under such agreements and deliver to
CELLCO a written acknowledgment of the same prior to CELLCO entering into an
arrangement including goods for VODAFONE's United States business, and (iii)
indemnify CELLCO against all third-party claims arising out of or related to
such VODAFONE purchases. VODAFONE acknowledges that it would not be
commercially reasonable, for example and without limitation, to insist that it
sign the CELLCO contract with the Vendor or for Cellco to expend efforts with
respect to a vendor that would be adverse to or would not want to include
VODAFONE's United State Business for any reason. For purposes of this
Agreement, "VODAFONE's United States Business" means the business of the
Headquarters of the US/Asia-Pacific Region, Globalstar USA, Global Technology
Group and Global Internet Group of VODAFONE..

                                   ARTICLE II

                            TERM AND CONTACT PERSONS

     2.1 Term. The term (the "Term") of this Agreement shall commence as of the
Effective Date and shall continue until the earlier of each Party migrating off
of all the Transition Services it is allowed to receive hereunder or 11months
after Stage I Closing, with each Party having a right to one 30 day extension
upon notice to the other, subject to earlier termination pursuant to Article IX
or written agreement otherwise by the parties. The end of the Term is also
referred to herein as the "Expiration Date" of this Agreement. Section 9.2
hereof enables a receiving Party to terminate any one or more Transition
Services upon 30-days advance notice to the providing Party without affecting
the Term.

                                       2
<PAGE>

     2.2 Contact Persons. Each Party shall appoint a person or persons for the
purpose of coordinating the provision of the Transition Services.

                                  ARTICLE III

                     COMPENSATION AND PAYMENT ARRANGEMENTS
                            FOR TRANSITION SERVICES

     3.1 Grace Period. There shall be a "grace" period of 120 days from and
after the Effective Date (the "Grace Period"), during which the Parties have
agreed not to charge each other for the provision of Transition Services.
However, the parties will cooperate to expeditiously establish, where
practical, direct billing arrangements with third-party suppliers of Transition
Services, so that charges will be billed directly to the party which incurred
such charges.

     3.2 Compensation for Transition Services. Upon expiration of the Grace
Period, unless otherwise provided in Section 3.1 or Schedule A, the total
compensation payable by a receiving Party to a providing Party for each and
every Transition Service shall be an amount equal to the providing Party's (or
its applicable affiliates') total costs, as calculated and determined in
accordance with this Section 3.2 (the "Total Costs"). For purposes of this
Agreement, the Total Costs per each Transition Service, and on a per unit basis
where applicable, shall include all reasonable costs and expenses directly or
indirectly incurred by the providing Party in connection with the performance
of such Transition Service.

     3.3 Audit Rights. The receiving Party shall have an annual right to audit,
at its expense and by hiring an outside auditor, all data, records and
information related to the reimbursement of Total Costs under this Agreement,
which audit shall be performed at the same time as the providing Party's annual
audit to minimize the disruption to providing Party's business. Where possible,
Total Costs shall be established by using the providing Party's then-current
cost allocations for such Transition Services.

     3.4 Payment Terms. The receiving Party shall pay by electronic funds
transfer or other method satisfactory to the Parties, in full, the undisputed
amount of the monthly invoiced amount within 30 days after the date the
providing Party's monthly invoice was received. The format of such invoice
shall include, without limitation, the applicable Transition Service, the
billing period, applicable rates and/or units, and such other information as
the receiving Party may reasonably request. Any undisputed amount not received
by the payment due date shall be subject to a late payment charge equal to the
balance overdue times the "prime" rate per annum, as announced from time to
time by Bank of America, for the number of calendar days from the payment due
date up to and including the date payment is actually made. Should the
receiving Party dispute any portion of the amount due on any invoice or require
any adjustment to an invoiced amount, the receiving Party shall notify the
providing Party in writing of the nature and basis

                                       3
<PAGE>

of the dispute and/or adjustment as soon as reasonably possible using the
dispute resolution procedures set forth in Article IV of this Agreement. The
Parties shall use reasonable best efforts to resolve the dispute prior to the
payment due date.

                                   ARTICLE IV

                               DISPUTE RESOLUTION

     4.1 Dispute Resolution Procedures. If a dispute arises between the Parties
with respect to the terms and conditions of this Agreement, or any subject
matter governed by this Agreement (excluding disputes regarding a Party's
compliance with the provisions of Article X or in the case of suit to compel
compliance with this dispute resolution process or with the provisions of this
Article) (a "Dispute") the Parties agree to use and follow this dispute
resolution procedure before initiating any judicial action. At such time as the
dispute is resolved under this Article, interest (at the rate specified in
Section 3.4) shall be paid to the Party receiving the disputed moneys to
compensate for the lapsed time between the date such dispute amount originally
was paid or should have been paid through the date moneys are paid in
settlement of the dispute.

     4.2 Claims Procedures. If a Party shall have a Dispute, that Party shall
provide written notification to the other Party in accordance with Section 8.1
of this Agreement, in the form of a claim identifying the issue or amount
disputed and including a detailed reason for the claim. The Party against whom
the claim is made shall respond in writing to the claim within 15 calendar days
from the date of receipt of the claim document. The Party filing the claim
shall have an additional 15 calendar days after the receipt of the response to
either accept the resolution offered by the other Party or request
implementation of the procedures set forth in Section 4.3 (the "Escalation
Procedures"). Failure to meet the time limitations set forth in this Section
will result in implementation of the Escalation Procedures unless otherwise
agreed by the Parties.

     4.3 Escalation Procedure. At the written request of a Party involved in
the Dispute and in compliance with Section 4.2, each Party shall appoint a
knowledgeable, responsible representative to meet and negotiate in good faith
to resolve any unresolved disputes or claims arising under this Agreement. The
Parties intend that these negotiations be conducted by experienced business
representatives empowered to decide the issues. The business representatives
will meet and attempt to resolve the Dispute within 15 business days of
receiving the written request. If they can resolve the Dispute within that time
period, it will be memorialized in a written settlement and release agreement,
executed within 5 business days thereafter. If they can not resolve the Dispute
within that time period, then the Parties may resort to judicial action or
other remedies. The Parties may vary the duration and form of this Escalation
Procedure by mutual written agreement.

                                       4
<PAGE>

                                   ARTICLE V

                            LIMITATION OF LIABILITY

     If a Party shall breach any covenant, agreement, or undertaking required
of it by this Agreement, the liability of such Party shall be limited to actual
damages. Neither Party shall be liable to the other for any indirect, special,
punitive, or consequential damage of any kind whatsoever. ARTICLE VI

                                INDEMNIFICATION

     6.1 General. To the extent not prohibited by law, and except as otherwise
provided in this Agreement, each Party shall indemnify, defend and hold
harmless the other Party from and against any third party loss, cost, injury,
liability, expense or claim caused or arising out of or based upon performance
of the indemnifying Party's obligations hereunder.

     6.2 Indemnification Procedure. A Party which is seeking indemnification
pursuant to this Article shall notify the other Party in reasonable detail of
the event(s) giving rise to such claim for indemnification within 15 business
days after the indemnified Party has actual knowledge of such event(s). The
indemnifying Party shall not have any liability to the indemnified Party to the
extent it is materially prejudiced as a result of any delay in notification by
the indemnified Party nor shall the indemnifying Party be responsible for any
additional loss incurred by the indemnified Party due to such delay by the
indemnified Party. The indemnifying Party shall have the right to undertake the
defense of any claim upon delivery of notice to the indemnified Party with
respect to such claim. Such defense shall be made with counsel reasonably
acceptable to the indemnified Party. If the indemnifying Party fails to
undertake the defense of the indemnified Party within such time period, the
indemnified Party may retain its own counsel for such defense, and the
indemnified Party's reasonable attorney's fees and expenses related to such
claim shall be paid by the indemnifying Party. Neither Party shall, without the
consent of the other Party, agree to any non-monetary settlement of the
indemnified claim.

                                  ARTICLE VII

                                 FORCE MAJEURE

     Neither Party shall be held liable for any delay or failure in performance
of any part of this Agreement from any cause beyond its reasonable control and
without its fault or negligence, including, but not limited to, acts of God,
acts of civil or military authority, embargoes, epidemics, war, terrorist acts,
riots, insurrections, fires, explosions, earthquakes, nuclear accidents,
floods, strikes, power blackouts affecting facilities other

                                       5
<PAGE>

than CELLCO facilities of a kind commonly protected by redundant power systems,
unless such redundant power systems are also affected by such Force Majeure
condition. Upon the occurrence of a condition described in this Article, the
Party whose performance is prevented shall given written notice to the other
Party, and the Parties shall promptly confer, in good faith, to agree upon
equitable, reasonable action to minimize the impact, on both parties, of such
conditions.

                                  ARTICLE VIII

                              NOTICES AND DEMANDS

     8.1 Notices. Except as otherwise provided under this Agreement (including
Schedule A), all notices, demands or requests which may be given by any Party
to the other Party shall be in writing and shall be deemed to have been duly
given on the date delivered in person, or sent via telefax, or on the next
business day if sent by overnight courier, or on the date of the third business
day after deposit, postage prepaid, in the United States Mail via Certified
Mail return receipt requested, and addressed as set forth below:

     If to CELLCO, to:
                          Cellco Partnership
                          180 Washington Valley Road
                          Bedminster, NJ  07921
                          Attention:  Controller
                          With a copy to:  General Counsel, at the same address

     If to VODAFONE, to:
                          Vodafone AirTouch Plc
                          One California Street
                          San Francisco, CA 94111
                          Attention:  President, U.S./Asia Pacific Region

                          With a copy to:  General Counsel, at the same address

     8.2 Change of Address. The address to which such notices, demands,
requests, elections or other communications are to be given by either Party may
be changed by written notice given by such Party to the other Party pursuant to
this Section.

                                       6
<PAGE>

                                   ARTICLE IX

                                    REMEDIES

     9.1 Remedy Upon Material Breach. In the event of material breach of any
provision of this Agreement by a Party, the non-defaulting Party shall give the
defaulting Party written notice, and:

          (a) If such breach is for non-payment of an amount that is not in
dispute, the defaulting Party shall cure the breach within 15 calendar days of
such notice. If the defaulting Party does not cure such breach by such date,
then the defaulting Party shall pay the non-defaulting Party the undisputed
amount, any interest that has accrued hereunder through the expiration of the
cure period plus an additional amount of interest equal to 2% per annum above
the "prime rate" as announced from time to time by Bank of America for each day
of continuing non-payment. The parties agree that this rate of interest
constitutes reasonable liquidated damages and not an unenforceable penalty.

          (b) If such breach is for any other material failure to perform in
accordance with this Agreement, the defaulting Party shall cure such breach
within 30 calendar days of the date of such notice. If the defaulting Party
does not cure such breach within such period, then the defaulting Party shall
pay the non-defaulting Party all of the non-defaulting Party's actual damages,
subject to Article V above.

     9.2 Termination of Transition Services and Agreement for Convenience. The
receiving Party shall have the right to terminate any Transition Service, in
whole or in part, upon 30 days prior written notice to the Providing Party. In
the unlikely event that the receiving Party shall not be able to complete its
migration of the Transition Services by the Expiration Date, the receiving
Party shall have the right to request and cause providing Party to provide up
to 30 days of additional Transition Services to receiving Party. If all
Transition Services provided to the receiving Party shall have been migrated or
terminated under this provision prior to the Expiration Date, then receiving
Party shall have the right to terminate this Agreement as to that Party by
giving written notice to the providing Party.

     9.3 Transitional Cooperation. The providing Party will give full
cooperation and support to the receiving Party to assure an orderly and
efficient transition.

     9.4 Survival Upon Expiration or Termination. The provisions of [OPEN:
Section 1.4,] Article IV (Dispute Resolution), Article V (Limitation of
Liability), Article VI (Indemnification), Article VIII (Notices and Demands),
Article X (Confidentiality), and Article XII (Miscellaneous) shall survive the
termination or expiration of this Agreement unless otherwise agreed to in
writing by both Parties.

                                       7
<PAGE>

                                   ARTICLE X

                                CONFIDENTIALITY

     10.1 Confidentiality Obligation. All information disclosed by a Party to
the other Party during the negotiations and the Term of this Agreement
("Proprietary Information") (a) shall be the property of the disclosing Party,
(b) shall be used solely for the purposes of administering and otherwise
implementing the terms of this Agreement and (c) shall be protected by the
Party receiving such Proprietary Information in accordance with the terms of
this Article.

     10.2 Non-Disclosure Covenant. Each Party agrees that they shall not
disclose any Proprietary Information of the other Party in whole or in part,
including derivations, to any third Party. Proprietary Information shall be
held in confidence by the receiving Party and its employees, contractors or
agents and shall be disclosed to only those of the receiving Party's employees,
contractors or agents who have a need to know it in connection with the
administration and implementation of this Agreement. In the event that such
Proprietary Information is not otherwise already included within the scope of a
confidentiality agreement with such contractors and agents, the receiving Party
shall cause such contractors and agents to comply with the provisions of this
Article.

     10.3 Exceptions. Information shall not be deemed Proprietary Information
and the receiving Party shall have no obligation with respect to any such
information which:

          (a) is or becomes publicly known through no wrongful act, fault or
negligence of the receiving Party; or

          (b) was known by the receiving Party prior to disclosure and the
receiving Party was not under a duty of non-disclosure, or is at any time
developed by the receiving Party independently of any such disclosure; or

          (c) was disclosed to the receiving Party by a third Party who was free
of of confidentiality to the Party providing the information; or

          (d) is approved for release by written authorization of the disclosing
Party; or

          (e) is furnished to a third Party by the disclosing Party without a
similar restriction on the third Party's rights.

     10.4 Confidentiality of this Agreement; Protective Arrangements.

     (a) The parties acknowledge that this Agreement contains commercially
confidential information that may be considered proprietary by either Party,
and agree to

                                       8
<PAGE>

limit distribution of this Agreement to those individuals in their respective
companies with a need to know the contents of this Agreement. In no event may
this Agreement be shown to any third parties by VODAFONE or CELLCO without the
prior written consent of the other Party, except as may be necessary by reason
of legal, accounting or regulatory requirements or national stock exchange
rules, in which event the parties agree to exercise diligence in limiting such
disclosure to the minimum necessary under the particular circumstances.

     (b) In addition, each Party agrees to give notice to the other Party of
any demands to disclose or provide Proprietary Information received from the
other under lawful process prior to disclosing or furnishing Proprietary
Information, and agrees to cooperate in seeking reasonable protective
arrangements requested by the other Party. In addition, a Party may disclose or
provide Proprietary Information of the other Party requested by a government
agency or national stock exchange having jurisdiction over the disclosing
Party; provided that such Party uses its reasonable good faith efforts to
obtain protective arrangements satisfactory to the Party owning the Proprietary
Information. The Party owning the Proprietary Information may not unreasonably
withhold approval of protective arrangements.

                                   ARTICLE XI

                OTHER REPRESENTATIONS, WARRANTIES, AND COVENANTS

     11.1 Compliance with Laws. Each Party shall comply, at its own expense,
with the provisions of all applicable municipal requirements and those state
and federal laws that may be applicable to the performance of this Agreement.

     11.2 Performance. Each Party represents and warrants that it is
experienced and qualified to perform the Transition Services and that all
Transition Services, shall be performed in a timely, thorough and professional
manner at least at a performance level equal to the level in which the Party
has provided the same or similar services on average in the past and to its own
markets.

     11.3 Personnel. Each Party represents and warrants that the Transition
Services will be performed by individuals in a manner providing quality at
standards no lower than the quality provided by that Party on average in the
past and to its own markets.

     11.4 Equipment and Software. Each Party shall keep the equipment and
software used to provide the Transition Services in good working order and
repair with sufficient capacity to perform the Transition Services concurrent
with the equipment's and software's other use for that Party, if any.

     11.5 Affect on Party's Business and End Users. All Transition Services
shall be performed and completed as soon as reasonably practicable and in a
manner that

                                       9
<PAGE>

reasonably would not adversely affect the receiving Party's business,
customers, and/or end users.

     11.6 Books and Records. All financial records regarding Transition
Services shall be maintained in accordance with generally accepted accounting
principles consistently applied.

                                  ARTICLE XII

                                 MISCELLANEOUS

     12.1 Relationship of the Parties. The parties declare and agree that each
Party is engaged in a business that is independent from that of the other Party
and each Party shall perform its obligations as an independent contractor. It
is expressly understood and agreed that nothing contained herein is intended to
create an agency relationship or a partnership or joint venture. Neither Party
is an agent of the other. Neither Party has authority to represent the other
Party as to any matters, except as authorized herein or in writing by the other
Party from time to time.

     12.2 Providing Party Employees. The providing Party shall be solely
responsible for payment of compensation to its employees and for any injury to
them in the course of their employment. The providing Party shall assume full
responsibility for payment of all federal, state, and local taxes or
contributions imposed or required under unemployment insurance, social
security, and income tax laws with respect to such persons.

     12.3 Assignment. Neither Party may assign, transfer, or convey any right,
obligation or duty, in whole or in part, or of any other interest under this
Agreement, without the prior written consent of the other Party, except that
either Party shall have the right to assign, transfer, or convey its rights,
obligations, and duties to any affiliate or in connection with the Alliance
Agreement and, in the case of Cellco, the GTE Agreement, provided, however,
that any such assignment, transfer, or conveyance shall not relieve such
transferring or assigning Party of liability for its responsibilities and
obligations. All obligations and duties of a Party under this Agreement shall
be binding on all successors in interest and permitted assigns of such Party.
Each Party may use its affiliates or subcontractors to perform the Transition
Services hereunder provided that such use shall not relieve such Party of
liability for its responsibilities and obligations.

         12.4 Severability. In the event that any one or more of the provisions
contained herein shall for any reason be held to unenforceable in any respect
under law, such unenforceability shall not affect any other provision of this
Agreement, and this Agreement shall be construed as if such unenforceable
provision or provisions had never been contained herein, unless the removal of
such offending terms or provision materially alters the burdens or benefits of
either of the parties under this Agreement or Schedule A, in which case the
parties will use their commercially reasonable efforts to agree upon an

                                      10
<PAGE>

enforceable provision which most closely approximates the parties intent in
entering into this Agreement..

     12.5 Third Party Beneficiaries. The provisions of this Agreement are for
the benefit of the parties and their affiliates and not for any other person.
Should any third Party institute proceedings, this Agreement shall not provide
any such person with any remedy, claim, liability, reimbursement, cause of
action, or other right.

     12.6 Governing Law. Except as otherwise expressly provided in this
Agreement, this Agreement shall be deemed to be a contract made under the laws
of the State of New York and the construction, interpretation, and performance
of this Agreement and all transactions hereunder shall be governed by the
substantive law of such State, without reference to its conflicts of laws
rules.

     12.7 Executed in Counterparts. This Agreement may be executed in
counterparts, each of which shall be an original, but such counterparts shall
together constitute but one and the same document.

     12.8 Construction. The headings and numbering of articles, sections and
paragraphs in this Agreement are for convenience only and shall not be
construed to define or limit any of the terms or affect the scope, meaning, or
interpretation of this Agreement or the particular Article or Section to which
they relate. This Agreement and the provisions contained herein shall not be
construed or interpreted for or against any Party because that Party drafted or
caused its legal representative to draft any of its provisions.

     12.9 Entire Agreement. This Agreement, including all attachments,
constitutes the entire Agreement between the parties, and supersedes all prior
oral or written agreements, representations, statements, negotiations,
understandings, proposals and undertakings, with respect to the Transition
Services to be provided by the Parties to each other hereunder.

     12.10 Amendments and Waivers. This Agreement may be amended only by
written agreement signed by duly authorized representatives of each Party. No
waiver of any provisions of this Agreement and no consent to any default under
this Agreement shall be effective unless the same shall be in writing and
signed by or on behalf of the Party against whom such waiver or consent is
claimed. No course of dealing or failure of any Party to strictly enforce any
term, right or condition of this Agreement shall be construed as a waiver of
such term, right or condition. Waiver by either Party of any default by the
other Party shall not be deemed a waiver of any other default.

     12.11 Remedies Cumulative. Unless otherwise provided for under this
Agreement, all rights of termination or cancellation, or other remedies set
forth in this Agreement, are cumulative and are not intended to be exclusive of
other remedies to which the injured Party may be entitled by law or equity in
case of any breach or

                                      11
<PAGE>

threatened breach by the other Party of any provision in this Agreement. Unless
otherwise provided for under this Agreement, use of one or more remedies shall
not bar use of any other remedy for the purpose of enforcing any provision of
this Agreement.

     14.12 Taxes. All charges and fees to be paid to providing Party under this
Agreement are exclusive of any applicable taxes required by law to be collected
from the receiving Party (including, without limitation, withholding, sales,
use, excise, or services tax, which may be assessed on the provision of
Transition Services). In the event that a withholding, sales, use, excise, or
services tax is assessed on the provision of any of the Transition Services
under this Agreement, the receiving Party will pay directly, reimburse or
indemnify providing Party for such tax. The parties will cooperate with each
other in determining the extent to which any tax is due and owing under the
circumstances, and shall provide and make available to each other any resale
certificate, information regarding out-of-state use of materials, services or
sale, and other exemption certificates or information reasonably requested by
either Party.

                                      12
<PAGE>

             [SIGNATURE PAGE OF THE TRANSITION SERVICES AGREEMENT]

     IN WITNESS WHEREOF, the parties, acting through their authorized officers,
have caused this Agreement to be duly executed and delivered as of the date
first above written.

                                           CELLCO PARTNERSHIP
                                           By its managing general partner

                                           By: /s/ S. Mark Tuller
                                              ----------------------------------
                                              Name:  S. Mark Tuller
                                              Title:

                                           VODAFONE AIRTOUCH PLC

                                           By: /s/ Arun Sarin
                                              ----------------------------------
                                              Name:  Arun Sarin
                                              Title: Chief Executive Officer

                                      13

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