<PAGE>

                     AMENDMENT NO. 1 TO CREDIT AGREEMENT AND
                      PARENT GUARANTY AND PLEDGE AGREEMENT

         THIS AMENDMENT NO. 1 TO CREDIT AGREEMENT AND PARENT GUARANTY AND PLEDGE
AGREEMENT (this "AMENDMENT NO. 1"), dated as of March 10, 2000, among NEXTEL
PARTNERS, INC., a Delaware corporation (the "PARENT"), NEXTEL PARTNERS OPERATING
CORP., a Delaware corporation (the "BORROWER"), each of the entities identified
as Consenting Obligors on the signature pages hereto (collectively, the
"CONSENTING OBLIGORS"), the various financial institutions from time to time
parties to the Credit Agreement (as defined below) as lenders (collectively, the
"LENDERS"), DLJ CAPITAL FUNDING, INC., as syndication agent (the "SYNDICATION
AGENT") for the Lenders, THE BANK OF NEW YORK, as documentation agent (the
"DOCUMENTATION AGENT") for the Lenders, BANK OF MONTREAL, as administrative
agent (the "ADMINISTRATIVE AGENT") for the Lenders, and Donaldson, Lufkin &
Jenrette Securities Corporation, as lead arranger (the "LEAD ARRANGER") and sole
book running manager (the "SOLE BOOK RUNNING MANAGER") for the Lenders (the
Syndication Agent and the Administrative Agent are collectively referred to
herein as the "AGENTS" and each as an "AGENT").

                                   W I T N E S S E T H:

         WHEREAS, the Borrower, the Lenders, the Syndication Agent, the
Documentation Agent and the Administrative Agent are parties to an Amended and
Restated Credit Agreement, dated as of September 9, 1999 (as in effect from time
to time, the "CREDIT AGREEMENT");

         WHEREAS, the Parent and the Administrative Agent are parties to the
Parent Guaranty and Pledge Agreement, dated as of January 29, 1999 (as in effect
from time to time, the "PARENT GUARANTY AND PLEDGE AGREEMENT");

         WHEREAS, the Parent has issued shares of Class A common stock of the
Parent to the public pursuant to an initial, primary offering registered under
the Securities Act of 1933, as amended (the "INITIAL PUBLIC OFFERING");

         WHEREAS, in connection with the Initial Public Offering, the Parent
proposes to issue not more than $200,000,000 of its 11% senior unsecured
notes due 2010 (together with any other notes having substantially
identical terms issued in exchange therefor, the "NEW SENIOR NOTES", with the
issuance thereof being herein referred to as the "NEW SENIOR NOTES ISSUANCE");

         WHEREAS, the Parent further contemplates the issuance of not more than
$200,000,000 of its additional senior unsecured notes (together with any other
notes having substantially identical terms issued in exchange therefor, the
"ADDITIONAL SENIOR NOTES", with the issuance thereof being herein referred to as
the "ADDITIONAL SENIOR NOTES ISSUANCE"), upon terms and


<PAGE>

conditions (including as to pricing, maturity and covenants) substantially
similar to those applicable to the New Senior Notes;

         WHEREAS, in connection with the New Senior Notes Issuance and any
Additional Senior Notes Issuance, each of the Parent and the Borrower has
requested the Lenders to amend certain terms and provisions of the Credit
Agreement and the Parent Guaranty and Pledge Agreement as set forth herein;

         WHEREAS, all Loans and Obligations (such capitalized terms, and other
terms used herein, to have the meanings provided in PART I) shall continue to be
and shall be fully guaranteed by the Parent Guaranty and Pledge Agreement and
the Subsidiary Guaranty and fully secured by, among other things, the Parent
Guaranty and Pledge Agreement, the Borrower Security and Pledge Agreement and
the Subsidiary Security and Pledge Agreement; and

         WHEREAS, each of Parent and the Borrower desires, and each of the
Lenders are willing, upon the terms and conditions hereinafter set forth, to
amend the Credit Agreement and the Parent Guaranty and Pledge Agreement as set
forth herein;

         NOW, THEREFORE, in consideration of the agreements herein contained,
and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto agree as follows:

                                     PART I

                                   DEFINITIONS

     SUBPART 1.1. CERTAIN DEFINITIONS. Unless otherwise defined herein or the
context otherwise requires, terms used in this Amendment No. 1, including its
preamble and recitals, have the following meanings (such meanings to be equally
applicable to the singular and plural forms thereof):

         "ADDITIONAL SENIOR NOTES" is defined in the FIFTH RECITAL.

         "ADDITIONAL SENIOR NOTES ISSUANCE" is defined in the FIFTH RECITAL.

         "ADMINISTRATIVE AGENT" is defined in the PREAMBLE.

         "AGENT" and "AGENTS" are defined in the PREAMBLE.

         "AMENDMENT NO. 1" is defined in the PREAMBLE.

         "AMENDMENT NO. 1 EFFECTIVE DATE" is defined in SUBPART 5.1.


                                      -2-
<PAGE>

         "BORROWER" is defined in the PREAMBLE.

         "CONSENTING OBLIGORS" means each of the entities identified as such on
the signature pages hereof.

         "CREDIT AGREEMENT" is defined in the FIRST RECITAL.

         "INITIAL PUBLIC OFFERING" is defined in the THIRD RECITAL.

         "LEAD ARRANGER" is defined in the PREAMBLE.

         "LENDERS" is defined in the PREAMBLE.

         "NEW SENIOR NOTES" is defined in the FOURTH RECITAL.

         "NEW SENIOR NOTES ISSUANCE" is defined in the FOURTH RECITAL.

         "PARENT" is defined in the PREAMBLE.

         "PARENT GUARANTY AND PLEDGE AGREEMENT" is defined in the SECOND
RECITAL.

         "SOLE BOOK RUNNING MANAGER" is defined in the PREAMBLE.

         "SYNDICATION AGENT" is defined in the PREAMBLE.

         SUBPART 1.2. OTHER DEFINITIONS. Unless otherwise defined herein or the
context otherwise requires, terms used in this Amendment No. 1, including its
preamble and recitals, have the meanings ascribed thereto in the Credit
Agreement. Each reference to "hereof", "hereunder", "herein" and "hereby" and
each other similar reference and each reference to "this Agreement" and each
other similar reference contained in the Credit Agreement, the Parent Guaranty
and Pledge Agreement or any other Loan Document, as the case may be, shall from
and after the Amendment No. 1 Effective Date refer to the Credit Agreement or
the Parent Guaranty and Pledge Agreement, as the case may be, as amended hereby.

                                     PART II

                         AMENDMENTS TO CREDIT AGREEMENT

         Effective on (and subject to the occurrence of) the Amendment No. 1
Effective Date, the Credit Agreement is hereby amended in accordance with this
PART II. Except to the extent amended by this Amendment No. 1, the Credit
Agreement is and shall continue to be in full force and effect and is hereby
ratified and confirmed in all respects.


                                       -3-
<PAGE>

     SUBPART 2.1. AMENDMENTS TO ARTICLE I. Article I of the Credit Agreement is
amended as set forth in this SUBPART 2.1.

          (a) The following new definitions are added to Section 1.1 of the
     Credit Agreement in their appropriate alphabetical order:

                           "ADDITIONAL SENIOR NOTES" means up to $200,000,000 in
                  aggregate principal amount of 11% senior unsecured notes of
                  the Parent, issued pursuant to the Additional Senior Notes
                  Indenture, as the same may be amended, supplemented or
                  otherwise modified from time to time in accordance with
                  SECTION 7.2.10, together with any other notes having
                  substantially identical terms issued in exchange therefor.

                           "ADDITIONAL SENIOR NOTES INDENTURE" means the
                  Indenture entered into by and between the Parent and The Bank
                  of New York, as trustee thereunder, as the same may be
                  amended, supplemented, amended and restated or otherwise
                  modified from time to time in accordance with SECTION 7.2.10.

                         "ADDITIONAL SENIOR NOTES ISSUANCE" means the issuance
                    of the Additional Senior Notes pursuant to the Additional
                    Senior Notes Indenture and in accordance with the terms and
                    conditions contained in clause (a)(ii) of Section 5.9 of the
                    Parent Guaranty and Pledge Agreement, as amended by
                    Amendment No. 1.

                           "AMENDMENT NO. 1" means Amendment No. 1 to Credit
                  Agreement and Parent Guaranty and Pledge Agreement, dated as
                  of March 10, 2000, among the Parent, the Borrower, the
                  Consenting Obligors, the Lenders, the Syndication Agent, the
                  Documentation Agent and the Administrative Agent.

                           "AMENDMENT NO. 1 EFFECTIVE DATE" shall have the
                    meaning set forth in Subpart 5.1 of Amendment No. 1.

                           "NEW SENIOR NOTES" means the $200,000,000 in
                  aggregate principal amount of senior unsecured notes due 2010
                  of the Parent, issued pursuant to the New Senior Notes
                  Indenture, as the same may be amended, supplemented or
                  otherwise modified from time to time in accordance with
                  SECTION 7.2.10, together with any other notes having
                  substantially identical terms issued in exchange therefor.

                           "NEW SENIOR NOTES INDENTURE" means the Indenture
                  entered into by and between the Parent and The Bank of New
                  York, as trustee thereunder, as in effect on the date hereof
                  and as the same may be amended, supplemented, amended and
                  restated or otherwise modified from time to time in accordance
                  with SECTION 7.2.10.


                                       -4-
<PAGE>

                         "NEW SENIOR NOTES ISSUANCE" means the issuance of the
                    New Senior Notes pursuant to the New Senior Notes Indenture
                    on the Amendment No. 1 Effective Date.

                         "PUBLIC OFFERING" means for any Person, any sale of
                  the Capital Stock of such Person to the public pursuant to any
                  primary offering registered under the Securities Act of 1933,
                  as amended.

                  (b) The definition of "Net Debt Proceeds" contained in Section
         1.1 of the Credit Agreement is amended to replace the parenthetical
         text contained in the second and third lines thereof with the following
         parenthetical text:

                           "(other than Debt incurred as part of the Transaction
                           or the Option Capitalization Transaction, other Debt
                           permitted by SECTION 7.2.2, and any proceeds of the
                           New Senior Notes Issuance or the Additional Senior
                           Notes Issuance contributed by the Parent to the
                           Borrower),".

                  (c) The definition of "Senior Debt" contained in Section 1.1
         of the Credit Agreement is amended to insert the words ", the New
         Senior Notes or the Additional Senior Notes" immediately following the
         words "Senior Notes" contained in the second line thereof.

                  (d) The definition of "Senior Notes Documents" contained in
         Section 1.1 of the Credit Agreement is deleted.

                  (e) The definition of "Transaction Documents" contained in
         Section 1.1 of the Credit Agreement is amended to insert the words ",
         the New Senior Notes Issuance, the Additional Senior Notes Issuance"
         immediately following the words "the Senior Discount Note Issuance"
         contained in the seventh line thereof.

         SUBPART 2.2. AMENDMENTS TO ARTICLE VII. Article VII of the Credit
Agreement is amended as set forth in this SUBPART 2.2.

                  (a) Section 7.2.6 of the Credit Agreement is amended as
         follows:

                           (i) The words ", any New Senior Notes and any
                  Additional Senior Notes" are inserted immediately following
                  the words "Senior Notes" contained in the fourth and
                  seventeenth lines of the first paragraph thereof.

                           (ii) The words "the New Senior Notes and the
                  Additional Senior Notes" are inserted immediately following
                  the words "Senior Notes" contained in clause (a)(ii) thereof.


                                       -5-
<PAGE>

                  (b) Section 7.2.10 of the Credit Agreement is amended to
         insert the words (i) ", any New Senior Notes or any Additional Senior
         Notes" immediately following the words "any Senior Discount Notes"
         contained in the fifth line thereof and (ii) ", the New Senior Notes
         Issuance or the Additional Senior Notes Issuance" immediately following
         the words "the Senior Discount Note Issuance" contained in the sixth
         line thereof.

                                    PART III

                          AMENDMENT TO PARENT GUARANTY
                          AND PLEDGE AGREEMENT, CONSENT

         Effective on (and subject to the occurrence of) the Amendment No. 1
Effective Date, the Parent Guaranty and Pledge Agreement is hereby amended in
accordance with this PART III. Except to the extent amended by this Amendment
No. 1, the Parent Guaranty and Pledge Agreement is and shall continue to be in
full force and effect and is hereby ratified and confirmed in all respects.

         SUBPART 3.1. AMENDMENT TO ARTICLE V. Section 5.9 of the Parent Guaranty
and Pledge Agreement is amended to replace existing clause (a) thereof with a
new clause (a) to read in its entirety as follows:

                  "(a) Indebtedness in respect of (i) the Senior Notes and the
         New Senior Notes and (ii) the Additional Senior Notes; PROVIDED, THAT,

                           (A) the aggregate outstanding principal amount of
                  Indebtedness evidenced by the Additional Senior Notes shall
                  not exceed $200,000,000 at any time outstanding and the
                  Additional Senior Notes Issuance shall have occurred not later
                  than the one-year anniversary of the Amendment No. 1 Effective
                  Date;

                           (B) the Agents shall have received (with copies for
                  each Lender that shall have expressly requested copies
                  thereof) a fully-executed copy of the Additional Senior Notes
                  Indenture, and all certificates, opinions and other documents
                  delivered thereunder, pursuant to which the Additional Senior
                  Notes shall have been issued upon terms and conditions
                  (including as to pricing, maturity and covenants)
                  substantially similar to those contained in the New Senior
                  Notes Indenture and in form and substance satisfactory to the
                  Agents;

                           (C) no Default shall have occurred and be continuing
                  on the date of the Additional Senior Notes Issuance, nor would
                  a Default result from the Additional Senior Notes Issuance;

                           (D) after giving effect to the Additional Senior
                  Notes Issuance, the Parent and its Subsidiaries shall be in
                  PRO FORMA compliance with the covenants set forth


                                      -6-
<PAGE>

                  in Section 7.2.4 of the Credit Agreement for the most recent
                  full Fiscal Quarter immediately preceding the date of the
                  Additional Senior Notes Issuance for which relevant financial
                  information has been delivered pursuant to clause (a) or (b)
                  of Section 7.1.1 of the Credit Agreement;

                           (E) all Net Debt Proceeds received by the Parent from
                  the Additional Senior Notes Issuance shall be applied by the
                  Parent to finance Capital Expenditures associated with the
                  Network Build-out and ongoing working capital and general
                  corporate needs of the Borrower and its Subsidiaries or to
                  redeem, repurchase or exchange all or part of the Senior
                  Discount Notes; and

                           (F) an Authorized Officer of the Parent shall have
                  delivered a certificate to the Agents in form and substance
                  satisfactory to the Agents (including calculation of
                  compliance with the covenants set forth in Section 7.2.4 of
                  the Credit Agreement) certifying as to the accuracy of CLAUSES
                  (A) through (E) above; and"

         By their signatures below, each of the Lenders consents, subject to the
terms and conditions set forth in this Amendment No. 1, the Credit Agreement and
the Parent Guaranty and Pledge Agreement (each as modified by this Amendment No.
1), to the New Senior Notes Issuance and Additional Senior Notes Issuance and
the incurrence of the Indebtedness in respect of the New Senior Notes and the
Additional Senior Notes; PROVIDED, HOWEVER, that all of the Net Debt Proceeds
received by the Parent from the New Senior Notes Issuance and the Additional
Senior Notes Issuance shall be applied by the Parent to finance Capital
Expenditures associated with the Network Build-out and the ongoing working
capital and general corporate needs of the Borrower and its Subsidiaries or, in
the case of the Additional Senior Notes Issuance only, to redeem, repurchase or
exchange all or part of the Senior Discount Notes.

                                     PART IV

                             AFFIRMATION AND CONSENT

         SUBPART 4.1. ACKNOWLEDGMENT AND REAFFIRMATION. Each of the Parent and
the Consenting Obligors hereby acknowledges the amendments to the Credit
Agreement and the Parent Guaranty and Pledge Agreement pursuant to the terms and
provisions set forth in this Amendment No. 1. Each of the Parent and the
Consenting Obligors hereby reaffirms, as of the Amendment No. 1 Effective Date,
(i) the covenants and agreements contained in each Loan Document to which it is
a party, including, in each case, as such covenants and agreements may be
modified by this Amendment No. 1 and the transactions contemplated hereby, and
(ii) its guarantee of payment of, and grant of security interest to secure, all
Obligations under the Credit Agreement, the Notes and each other Loan Document
pursuant to the Security Documents to which the Parent or such Consenting
Obligor is a party.


                                      -7-
<PAGE>

         SUBPART 4.2. REPRESENTATIONS AND WARRANTIES, ETC. Each of the Parent
and the Consenting Obligors hereby certifies that, as of the date hereof (both
before and after giving effect to the occurrence of the Amendment No. 1
Effective Date), the representations and warranties made by it contained in the
Loan Documents to which it is a party are true and correct in all material
respects with the same effect as if made on the date hereof (unless stated to
relate solely to an earlier date, in which case such representations and
warranties were true and correct in all material respects as of such earlier
date).

         SUBPART 4.3. LOAN DOCUMENTS. Each of the Parent and the Consenting
Obligors further confirms that each Loan Document to which it is a party is and
shall continue to be in full force and effect and the same is hereby ratified
and confirmed in all respects, except that upon the occurrence of the Amendment
No. 1 Effective Date, all references in such Loan Documents to the "Credit
Agreement", "Parent Guaranty and Pledge Agreement", "Loan Documents",
"thereunder", "thereof", or words of similar import shall mean the Credit
Agreement, the Parent Guaranty and Pledge Agreement and the Loan Documents, as
the case may be, in each case after giving effect to the amendments and other
modifications provided for in this Amendment No. 1.

         SUBPART 4.4. COURSE OF DEALING, ETC. Each of the Parent and the
Consenting Obligors hereby acknowledges and agrees that the acceptance by the
Agents and each Lender of this document shall not be construed in any manner to
establish any course of dealing on the Agent's or Lender's part, including the
providing of any notice or the requesting of any acknowledgment not otherwise
expressly provided for in any Loan Document with respect to any future
amendment, waiver, supplement or other modification to any Loan Document or any
arrangement contemplated by any Loan Document.

                                     PART V

                           CONDITIONS TO EFFECTIVENESS

         SUBPART 5.1. EFFECTIVE DATE. This Amendment No. 1 shall be and become
effective upon the prior or concurrent satisfaction of each of the conditions
precedent set forth in this SUBPART 5.1 (the "AMENDMENT NO. 1 EFFECTIVE DATE").

         SUBPART 5.1.1. EXECUTION OF COUNTERPARTS. The Agents shall have
received counterparts of this Amendment No. 1 duly executed by the Parent, the
Borrower, the Consenting Obligors and the Required Lenders (or evidence thereof
satisfactory to the Agents). The delivery of an executed counterpart hereof by
the Borrower shall constitute a representation and warranty by the Borrower
that, on the Amendment No. 1 Effective Date, after giving effect to this
Amendment No. 1, all statements set forth in Article VI of the Credit Agreement,
as amended by this Amendment No. 1, are true and correct as of such date (unless
stated to relate solely to an earlier date, in which case such representation
and warranty were true and correct in all material respects as of such earlier
date).


                                      -8-
<PAGE>

         SUBPART 5.1.2. RESOLUTIONS, ETC. The Agents shall have received from
the Parent, the Borrower and each Consenting Obligor, as applicable, (i) a copy
of a good standing certificate, dated a date reasonably close to the Amendment
No. 1 Effective Date, for each such Person and (ii) a certificate, dated the
Amendment No. 1 Effective Date and with counterparts for each Lender, duly
executed and delivered by such Person's Secretary or Assistant Secretary as to

                  (a) resolutions of each such Person's board of directors then
         in full force and effect authorizing, to the extent relevant, all
         aspects of the New Senior Notes Issuance and the Additional Senior
         Notes Issuance applicable to such Person, and the execution, delivery
         and performance of Amendment No. 1 and each other Loan Document to be
         executed by such Person and the transactions contemplated hereby and
         thereby;

                  (b) the incumbency and signatures of those of its officers or
         managing members authorized to act with respect to Amendment No. 1 and
         each other Loan Document to be executed by such Person; and

                  (c) the full force and validity of each Organic Document of
         such Person and copies thereof,

upon which certificates each Agent and each Lender may conclusively rely until
it shall have received a further certificate of the Secretary, Assistant
Secretary or other duly authorized representative of any such Person canceling
or amending the prior certificate of such Person.

         SUBPART 5.1.3. NEW SENIOR NOTES INDENTURE. The Agents shall have
received (with copies for each Lender that shall have expressly requested copies
thereof) a fully-executed copy of the New Senior Notes Indenture and all
certificates, opinions and other documents delivered thereunder, certified to be
true and complete copies thereof by an Authorized Officer of the Parent.

         SUBPART 5.1.4. IPO PROCEEDS. The Agents shall have received evidence
satisfactory to each of them that the Parent received funded proceeds from the
Initial Public Offering of not less than $450,000,000.

         SUBPART 5.1.5 OPINION OF COUNSEL. The Agents shall have received an
opinion, dated the Amendment No. 1 Effective Date and addressed to the Agents
and all Lenders from Friedman Kaplan & Seiler LLP, New York counsel to the
Parent, the Borrower and each of the Consenting Obligors, satisfactory in form
and substance to the Syndication Agent and its counsel. Such legal opinion shall
cover such matters incident to the transactions contemplated by Amendment No. 1
as the Syndication Agent may reasonably require.

         SUBPART 5.1.6. PAYMENT OF FEES AND EXPENSES. The Administrative
Agent shall have received, for the account of each Lender which shall have
delivered to the Agents a duly executed counterpart of this Amendment No. 1
by March 7, 2000, an amendment fee in the amount of .10% of such Lender's
Loans and Commitments. In addition, the Borrower hereby


                                      -9-
<PAGE>

agrees to pay and reimburse the Syndication Agent for all its reasonable fees
and expenses incurred in connection with the negotiation, preparation, execution
and delivery of this Amendment No. 1 and related documents, including all
reasonable fees and disbursements of counsel to the Syndication Agent.

         SUBPART 5.1.7. SATISFACTORY LEGAL FORM. The Syndication Agent and its
counsel shall have received all information, and such counterpart originals or
such certified or other copies of such materials, as the Syndication Agent or
its counsel may reasonably request, and all legal matters incident to the
effectiveness of this Amendment No. 1 shall be satisfactory to the Syndication
Agent and its counsel. All documents executed or submitted pursuant hereto or
in connection herewith shall be reasonably satisfactory in form and substance to
the Syndication Agent and its counsel.

         SUBPART 5.2. LIMITATION. Except as expressly provided hereby, all of
the representations, warranties, terms, covenants and conditions of the Credit
Agreement, the Parent Guaranty and Pledge Agreement and each other Loan Document
shall remain unamended and unwaived and shall continue to be, and shall remain,
in full force and effect in accordance with their respective terms. The
amendments, modifications and consents set forth herein shall be limited
precisely as provided for herein, and shall not be deemed to be a waiver of,
amendment of, consent to or modification of any other term or provision of the
Credit Agreement or the Parent Guaranty and Pledge Agreement or of any term or
provision of any other Loan Document or other instrument referred to therein or
herein, or of any transaction or further or future action on the part of the
Parent, the Borrower or any other Person which would require the consent of the
Agents or any of the Lenders under the Credit Agreement, the Parent Guaranty and
Pledge Agreement or any such other Loan Document or instrument.

                                     PART VI

                                  MISCELLANEOUS

         SUBPART 6.1. CROSS-REFERENCES. References in this Amendment No. 1 to
any Part or Subpart are, unless otherwise specified, to such Part or Subpart
of this Amendment No. 1. References in this Amendment No. 1 to any Article or
Section are, unless otherwise specified, to such Article or Section of the
Credit Agreement or the Parent Guaranty and Pledge Agreement, as the case may
be.

         SUBPART 6.2. LOAN DOCUMENT. This Amendment No. 1 is a Loan Document
executed pursuant to the Credit Agreement and shall (unless otherwise expressly
indicated therein) be construed, administered and applied in accordance with the
terms and provisions of the Credit Agreement, as amended hereby, including
Article X of the Credit Agreement.


                                      -10-
<PAGE>

     SUBPART 6.3. COUNTERPARTS, ETC. This Amendment No. 1 may be executed by the
parties hereto in several counterparts, each of which shall be deemed to be an
original and all of which shall constitute together but one and the same
Agreement.

     SUBPART 6.4. GOVERNING LAW. THIS AMENDMENT NO. 1 SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

     SUBPART 6.5. SUCCESSORS AND ASSIGNS. This Amendment No. 1 shall be binding
upon and inure to the benefit of the parties hereto and their respective
successors and assigns.

     SUBPART 6.6. PAYMENT OF FEES AND EXPENSES. The Borrower agrees to pay
and reimburse the Agents for all its reasonable expenses incurred in connection
with the negotiation, preparation, execution and delivery of this Amendment No.
1 and related documents, including all reasonable fees and disbursements of
counsel to the Agents.

              [INTENTIONALLY LEFT BLANK - - SIGNATURE PAGES FOLLOW]


                                      -11-
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 1
to be executed by their respective officers hereunto duly authorized as of the
day and year first above written.

PARENT:                                      NEXTEL PARTNERS, INC.,
                                             a Delaware corporation

                                             By:   /s/ Donald J. Manning
                                                ---------------------------
                                             Name:    Donald J. Manning
                                             Title:   Vice President

BORROWER:                                    NEXTEL PARTNERS OPERATING CORP.,
                                             a Delaware corporation

                                             By:   /s/ Donald J. Manning
                                                ---------------------------
                                             Name:    Donald J. Manning
                                             Title:   Vice President

CONSENTING OBLIGORS:                         NPCR, INC.,
                                             a Delaware corporation

                                             By:   /s/ Donald J. Manning
                                                ---------------------------
                                             Name:    Donald J. Manning
                                             Title:   Vice President

                                             NEXTEL PARTNERS OF UPSTATE
                                             NEW YORK, INC.,
                                             a Delaware corporation

                                             By:   /s/ Donald J. Manning
                                                ---------------------------
                                             Name:    Donald J. Manning
                                             Title:   Vice President