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                                                                   EXHIBIT 10.30

                CELLULAR DIGITAL PACKET DATA RESELLER AGREEMENT

    DETROIT SMSA LIMITED PARTNERSHIP AND CINCINNATI SMSA LIMITED PARTNERSHIP

   THIS AGREEMENT (hereafter referred to as the "Agreement") is made and entered
into on this 10th day of January, 2002 (the "Effective Date"), by and between
Ameritech Mobile Communications, LLC d/b/a Cingular Wireless on behalf of
Detroit SMSA Limited Partnership and Cincinnati SMSA Limited Partnership
(collectively referred to as the "Company") and At Road, Inc., a Delaware
corporation (the "Customer"); throughout this Agreement, the Company and the
Customer are sometimes jointly referred to as the "Parties"). This Agreement
incorporates by reference all exhibits attached hereto, along with any other
exhibits subsequently put into effect by the parties and any and all orders
subsequently submitted by the Customer and accepted by the Company.

1. Purpose.

   The Company has developed a Cellular Digital Packet Data System which
   provides data communications between cellular mobile radio units and/or
   mobile data units in the greater Detroit metropolitan area; and the greater
   Cincinnati, Columbus and Dayton metropolitan area. The Company wishes to
   sell, and the Customer wishes to buy, the services which provide access to
   such system, and certain other optional features for use in the connection
   with such system, all upon the terms and conditions set forth in this
   Agreement.

2. Definitions.

   When used in this Agreement, the following terms shall have the following
   meanings:

   2.1    Affiliate
          Any other entity that is owned at least 50 percent by a party to this
          Agreement. In the case of Company, affiliate also shall mean Ameritech
          Corporation and any successor to Ameritech Corporation, whether by
          change of name, dissolution, merger, consolidation, reorganization or
          otherwise and any subsidiary of Ameritech Corporation or its
          successor.

   2.2    Cell Site
          A building location containing the antenna and radio equipment
          necessary to complete a connection between a Mobile Data Unit and the
          mobile telephone switching office.

   2.3    Cellular Geographic Service Area or CGSA
          A specific geographical area in which the Company is authorized under
          a Federal Communications Commission ("FCC") license to provide
          Service.

   2.4    Cellular Digital Packet Data (CDPD)
          A service utilizing packet switching technology in which Packets are
          transported via M-ES to and/or from the MD-IS serving that M-ES via
          cellular frequency.

   2.5    Cellular System
          A mobile communications system or network by means of which Service is
          provided.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                           10.30
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   2.6    Data Circuit
          A telecommunications line carrying data transmissions between two end
          points.

   2.7    EID
          Electronic Identification Number which refers to the equipment
          identifier.

   2.8    End User
          The individuals or entities obtaining access to Service through
          Customer.

   2.9    Fixed End System (FES)
          An external data application system/computer and router which is
          owned, operated administered and maintained by Customer and which
          provides connectivity between Company's CDPD Network and a Mobile End
          System.

   2.10   Interoperability
          Refers to the interservice agreement among certain CDPD carriers (see
          Exhibit 1 for a list of such carriers) to provide data services to the
          other carriers' authorized users who are homed or visiting in such
          serving carrier's service area, in accordance with its own tariffs and
          the terms and conditions of the interservice agreement.

   2.11   IP Address
          Internet Protocol (IP) address with access to the Cellular Digital
          Packet Data System which is assigned to the Customer by the Company
          and which shall only be used by Customer or an End User with one
          Mobile Data Unit having a unique NEI.

   2.12   Marks
          Either party's name, corporate logo, and trademarks.

   2.13   Mobile Data Unit
          A single unit of radio data equipment (for example: a modem with built
          in mobile radio transmitter and receivers) having a unique EID for use
          in connection with its own unique IP Address which is both capable of
          being moved from location to location, and technically and
          operationally compatible with the Cellular Digital Packet Data System.

   2.14   Mobile End System
          Any CDPD enabled device that terminates on the mobile end of a
          communicated signal such as a CDPD enabled modem, mobile phone, PDA,
          laptop, etc.

   2.15   MSA
          A Metropolitan Statistical Area.

   2.16   NEI
          Network Entity Identifier. The IP Address that uniquely identifies a
          given Mobile End System over the Cellular and CDPD Network.

   2.17   RSA
          A Rural Service Area.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

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   2.18   Service
          The CDPD communication service and associated support services
          provided to Customer by the Company.

   2.19   Service Area
          Subject to Section 6, those portions of Ameritech's CDPD operating
          areas as identified in Exhibit 2 hereto.

   2.20   Usage
          Specific periods of time during which the Customer and/or End User
          uses the Cellular System and incurs Service charges.

3. Relationship Established.

   3.1    The Customer and the company shall have the relationship of
          independent contractors under this Agreement. Neither Party shall be
          deemed to be the agent of the other nor have any authority with regard
          to the other, except as specified in this Agreement (or in a separate
          writing signed by both Parties). Neither Party shall have the right or
          authority to act on behalf of the other Party, or to incur any
          obligations chargeable to the other, by virtue of this Agreement.
          Persons retained by either Party as employees or agents shall not be
          deemed to be employees or agents of the other Party because of this
          Agreement.

   3.2    The Customer shall not, under any circumstances, represent itself as
          the FCC-authorized provider of Service, or use the Company's Marks
          except as provided herein. With the prior written approval of the
          Company, which approval must be obtained on an item-by-item basis, the
          Customer may use the Company's Marks in the Customer's advertising and
          promotional materials. Any pre-authorized use of Company's Marks by
          Customer shall inure solely to the benefit of Company. Customer does
          not acquire any ownership rights or interest in Company's Marks by
          such pre-authorized use and customer shall not at anytime dispute
          Company's ownership rights to the latter's Marks.

   3.3    The Company shall not, under any circumstances, use Customer's
          Marks except as provided herein. With the prior written approval of
          Customer, which approval must be obtained on an item-by-item basis,
          the Company may use the Customer's Marks in the Company's materials.
          Any pre-authorized use of Customer's Marks by the Company shall inure
          solely to the benefit of Customer. Company does not acquire any
          ownership rights or interest in Customer's Marks by such pre-
          authorized use, and Company shall not at anytime dispute Company's
          ownership rights to the latter's Marks.

   3.4    Neither party will do anything which would tend to discredit,
          dishonor, reflect adversely upon, or in any manner injure the
          reputation of the other party or its service.

   3.5    Company has the right to review Customer's standard form of End User
          contract and, upon Company's request, Customer shall provide accurate
          copies of such contract to Company.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

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4. Term of Agreement.

   4.1    This Agreement will take effect on the Effective Date and shall
          continue in effect for one (1) year ("Initial Contract Period"). After
          the Initial Contract Period expires, this Agreement shall be renewed
          automatically for subsequent one (1) year renewal periods (the
          "Renewal Periods"). The foregoing notwithstanding, either party may
          terminate this Agreement at any time on ninety (90) day's prior
          written notice of termination to the other party.

   4.2    Except as otherwise set forth herein, the Customer is responsible for
          all Service charges and related charges set forth on Exhibit 3 hereto
          and incurred by the Customer and/or any End User while this Agreement
          is in effect.

5. Duties of the Company.

   5.1    The Company will provide Service to the Customer, on a non-exclusive
          basis, at the rates and charges and under the terms and conditions
          specified in this Agreement, provided that the Company is able to
          obtain, retain and maintain suitable facilities, licenses and rights
          for the construction and maintenance of the Cellular System without
          unreasonable expense.

   5.2    The Company does not provide to End-Users marketing, billing,
          collection, direct End-User support, equipment, or any similar goods
          or services under this Agreement.

6. Availability and Scope of the Service.

   6.1    Service is available to properly activated Mobile Data Units when such
          units are within the range of Cell Sites located in the Cellular
          Geographic Service Areas served by Detroit SMSA Limited Partnership
          and Cincinnati SMSA Limited Partnership. Service is also subject to
          transmission limitations caused by atmospheric and other conditions,
          both natural and artificial, which may adversely affect transmission
          or transmission facilities. Service may be temporarily interrupted or
          curtailed due to Cellular System modifications, upgrades, relocations,
          repairs and similar activities reasonably necessary for the proper or
          improved operation of the Cellular System. The Company shall have no
          liability for its inability to provide Service under the circumstances
          described in this Section, except as otherwise provided in Section
          7.1.

   6.2    This Agreement governs the resale of the Company's Service by Customer
          only within the Service Area and nothing herein authorizes Customer to
          resell the Services governed by this Agreement outside the Service
          Area. The Company reserves the right to amend the Service Area
          specified in Exhibit 2 at any time without a written amendment to
          Exhibit 2; provided that, Company provides Customer ninety (90) days
          prior written notice of such expansion or contraction which notice may
          take the form of new coverage maps, zip code lists or e-mail
          notification.

   6.3    Upon reasonable request by Company, Customer shall prepare and submit
          to Company a report containing Customer's six-month forecast of
          anticipated new End Users so that Company can evaluate its capacity
          requirements and ability to provide Service. Company understands that
          the actual number of new End Users may differ from such forecasts and
          that Customer does not make any representation or warranty with
          respect to such forecasts, except that such forecasts, at the time
          they were prepared, were prepared in good faith. Company shall
          disclose information contained in such reports only to those
          individuals in its organization who have a

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                               4

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          need to know for purposes of planning its capacity requirements and
          ability to provide the Service hereunder, and shall in no event use
          such information for the purpose of competing with Customer.

7. Limitation of Company's Liability.

   The Company has no control over the messages transmitted over its Service,
   and occasional errors incident to the provision and use of Service are
   inevitable. Therefore, Service is provided upon the following terms,
   conditions and limitations. The Company's sole liability to the Customer and
   any End User(s) is as set forth in this Section 7, and Customer's End User
   contract shall reflect this limitation of liability.

   7.1    Upon the Customer's request, a credit allowance (the "Credit
          Allowance") will be made for any period of 12 hours or more during
          which there occur any mistakes, omissions, interruptions, delays,
          errors, failures or defects in Service, transmission, the Cellular
          System and/or any other facilities furnished by the Company. The
          Credit Allowance shall consist of a pro rata adjustment of the fixed
          monthly charges billed by the Company for each affected Mobile Data
          Unit. Any Service interruption will be measured from the time it is
          (i) reported to or (ii) detected by the Company, whichever occurs
          first. If any Mobile Data Unit is affected by such interruption for a
          period of less than 24 hours, no adjustment shall be made. If a
          Service interruption exceeds 24 hours, the length of the interruption
          will be measured in 24 hour days from the time the interruption is
          first reported to or detected by the Company. After the first 24 hours
          of Service interruption, any and all additional periods greater than
          12 hours up to and including 24 hours will be considered an additional
          day. Any fraction of a day consisting of less than 12 hours will not
          be credited. The Credit Allowance will be computed by dividing the
          Company's fixed monthly charges by a standard 30 day month, and then
          multiplying the result by the length of the Service interruption for
          each affected IP. The Credit Allowance will never exceed the
          applicable fixed monthly charges. Such an adjustment will fulfill the
          Company's full and complete liability for any Service interruption,
          and no other liability will attach to the Company as a result of any
          Service interruption.

   7.2    Company shall provide Customer reasonable notice, by e-mail
          notification to the e-mail address set forth in Section 28, of any
          known network outages or planned network maintenance.

   7.3    The liability of the Company for (i) loss or damages arising out of
          mistakes, omissions, interruptions, delays, errors, failures or
          defects in Service, transmission, the Cellular System and/or any other
          facilities furnished by the Company, or (ii) failing to maintain
          proper standards of maintenance and operation and/or to exercise
          reasonable supervision, shall be limited to Credit Allowances on
          account thereof computed pursuant to Section 7.1, above.

   7.4    Notwithstanding anything set forth in Section 7.1 and/or 7.3, above,
          no Credit Allowance will be given for any Service interruptions caused
          by the acts of the Customer and/or End User, or for any interruptions
          caused by failure of equipment which is not a part of the Company's
          Cellular System, or for any interruption caused by service which is
          not provided by the Company.

   7.5    In addition to the indemnities set forth in Section 13, the Customer
          shall indemnify and save the Company harmless against (i) all claims
          for libel, slander, or infringement of copyright for material
          transmitted over the Service and (ii) all claims for infringement of
          U.S. patents arising from the use of apparatus and systems belonging
          to the Customer in combination and/or connection with the Service.
          Customer will defend, at its expense, any action brought against
          Company based upon a

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                               5

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          claim as described in this Section 7.5, provided that Customer shall
          have sole control of any such action or settlement negotiations, and
          further provided that Company shall notify Customer promptly in
          writing of such claim and shall give Customer all authority,
          information and assistance reasonably necessary to settle or defend
          such claim. Customer shall reimburse Company for incidental
          out-of-pocket expenses incurred by Company in providing such
          assistance. Customer shall not be liable for any costs or expenses
          incurred without its prior written authorization.

   7.6    Notwithstanding anything set forth in Section 7.1 and/or 7.2 above, no
          Credit Allowance will be given, and the Company shall not, under any
          circumstances, be liable for any failure to transmit, other Service
          interruption, errors, defects or delays caused by acts of God, fire,
          war, riots, government authorities or other causes beyond the
          Company's control if Company uses its best efforts to mitigate the
          effects, and gives Customer prompt written notice.

   7.7    The Company is not liable for damages for any accident or injury
          occasioned by the presence or the use of either the Service or the
          Mobile Data Unit, including but not limited to any physical injury,
          defacement or property damage which may result from the presence or
          use of the Mobile Data Unit.

   7.8    IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR ANY SPECIAL,
          CONSEQUENTIAL, EXEMPLARY OR INCIDENTAL DAMAGES (INCLUDING LOST OR
          ANTICIPATED REVENUES OR PROFITS RELATING TO THE SAME), ARISING FROM
          ANY CLAIM RELATING TO THIS AGREEMENT, OR TO A PARTY'S PROVISION OF
          SERVICE HEREUNDER, WHETHER SUCH CLAIM IS BASED ON CONTRACT, TORT
          (INCLUDING NEGLIGENCE OR STRICT LIABILITY) OR OTHERWISE, EVEN IF AN
          AUTHORIZED REPRESENTATIVE OF THE OTHER PARTY IS ADVISED OF THE
          POSSIBILITY OR LIKELIHOOD OF THE SAME. THE MAXIMUM LIABILITY TO
          CUSTOMER UNDER THIS SECTION 7 SHALL BE LIMITED TO TWO HUNDRED THOUSAND
          DOLLARS ($200,000).

8. Facility Modifications.

   Customer acknowledges that the cellular data industry is a rapidly changing
   industry and technology and as such Company shall not be liable to Customer
   or to Customer's End Users if changes in any of the Cellular System,
   operations, equipment, procedures, or Service:

   8.1    Render obsolete any equipment, including but not limited to Mobile
          Data Units, or software provided or used by Customer or any End User
          in conjunction with use of the Service;

   8.2    Require modification or alteration of such equipment or software; or

   8.3    Otherwise affects the performance of such equipment or software.
          Whenever reasonably possible, Company agrees to give not less than
          ninety (90) days advance written notice to Customer of changes which
          Company reasonably anticipates will result in the conditions described
          in paragraphs 8.1 through 8.3, above. If no notice is given by Company
          to Customer, then upon Customer's request, Company will provide notice
          of changes, detailed description of such changes and assist Customer
          to achieve interoperability.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                               6

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9. Interoperability.

   Customer hereby acknowledges and agrees that the Company is not responsible
   for the billing practices, service charges or ultimately availability of
   Interoperability services through carriers. Company is not obligated to
   provide Service in areas where Company does not have Service, has not entered
   into, or loses, an Interoperability agreement in an area or loses its roaming
   agreement in an area. Company agrees, however, to make Interoperability
   available to Customer in any MSAs or RSAs in which Company has an
   Interoperability agreement on the terms and conditions contained in such
   agreements.

10. Use of Service.

    10.1  Service is furnished for use by the Customer and/or its End Users for
          any lawful purpose, including resale by the Customer.

    10.2  The Company will only accept Service change orders (including line
          activation, termination, and/or any other changes in Service) directly
          from the Customer or its employees or agents via electronic mail to an
          address designated by the Company for such purpose.

    10.3  Customer shall not engage in and shall not assist or participate in
          any fraudulent activities in connection with the sale, provision or
          use of Service. Customer shall be solely responsible for all risks,
          expenses and liabilities incurred through the fraudulent activities of
          Customer with respect to the Service provided hereunder. The Company
          reserves the right to modify this Agreement, with the prior written
          consent of Customer, to reflect modifications to Company's reseller
          practices and procedures which introduce or implement fraud reduction
          activities, but is under no obligation to introduce or implement any
          such fraud reduction activities.

11. Fraud.

    Upon detection by Customer of fraudulent activities, Customer shall notify
    Company of such fraudulent activities as soon as practicable following
    detection by Customer and advising Company to deactivate the IP address
    without any, if applicable, deactivation fee.

12. No Warranty.

    COMPANY AND ITS AFFILIATES MAKE NO WARRANTIES, EITHER EXPRESSED OR IMPLIED,
    CONCERNING THE FACILITIES OR THE SERVICE, INCLUDING, WITHOUT LIMITATION,
    WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. IT
    IS INTENDED BY THE PARTIES THAT THIS SECTION SHALL APPLY TO CUSTOMER AND TO
    ALL OF CUSTOMER'S AUTHORIZED USERS AND THAT THE CUSTOMER'S AUTHORIZED USER
    CONTRACT SHALL REFLECT THIS EXCLUSION OF WARRANTIES IN A CLEAR AND
    CONSPICUOUS MANNER BY INCLUDING SUCH PROVISION IN CUSTOMER'S AUTHORIZED USER
    AGREEMENT. Customer expressly acknowledges that Company shall have no
    liability except as provided in Section 7 of this Agreement for any failure,
    defects, malfunctions or errors in the or for the provision of Service
    hereunder to Customer or its End Users.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                               7

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13. Indemnification and Insurance.

    13.1  Customer will indemnify and hold harmless Company and its officers,
          directors, employees, agents and assigns and its successors and
          assigns from any and all liabilities, losses, obligations, expenses
          (including without limitation reasonable attorneys' fees) and costs
          arising in connection with any lawsuit, proceeding or other action
          arising out of or resulting from (a) Customer's conduct of its
          business; (b) Customer's breach of this Agreement; and (c) Customer's
          unauthorized use of the Company's Marks or confidential information or
          other proprietary property. Customer will defend, at its expense, any
          action brought against Company based upon a claim as described in this
          Section 13.1, provided that Customer shall have sole control of any
          such action or settlement negotiations, and further provided that
          Company shall notify Customer promptly in writing of such claim and
          shall give Customer all authority, information and assistance
          reasonably necessary to settle or defend such claim. Customer shall
          reimburse Company for incidental out-of-pocket expenses incurred by
          Company in providing such assistance. Customer shall not be liable for
          any costs or expenses incurred without its prior written
          authorization.

    13.2  Customer will maintain during the term of this Agreement: (a) Workers'
          Compensation insurance as prescribed by the law of the state in which
          Customer's obligations under this Agreement are performed, (b)
          Employer's Liability insurance with limits of at least $500,000 for
          each occurrence, and (c) Commercial General Liability insurance
          (including, but not limited to, products liability and contractual
          liabilities) with combined single limits for each occurrence of at
          least $1,000,000. Neither Customer nor any insurer shall have a claim,
          right of action or right of subrogation against Company based on any
          occurrence insured against under such insurance. Upon Company's
          request, Customer shall furnish proof of insurance coverage.

14. Provision of the Mobile Data Unit.

    14.1  The Customer and/or End User(s) must provide and maintain all Mobile
          Data Units and Mobile End System and ensure both that they are
          technically and operationally compatible with the Cellular System,
          and that they comply with applicable FCC rules and regulations. The
          Company shall have no responsibility for the provision, installation,
          operation, quality of transmission or maintenance of any Mobile Data
          Unit.

    14.2  All Mobile Data Units shall operate in a manner which will not
          interfere with Service to any other customers.

15. Support Services.

    The provision of any and all support services is the responsibility of the
    Customer. Company will not provide support services to End Users.

16. Use of Marks.

    The Customer may describe itself as a "reseller of Ameritech Cellular
    Service" but shall otherwise refrain from directly or indirectly holding
    itself out as or otherwise creating any impression that it is sponsored,
    authorized, endorsed by, affiliated with, or an agent of the Company, or of
    Cingular Wireless, LLC or of SBC Wireless, LLC, or Ameritech Mobile
    Communications, LLC, unless such affiliation or agency

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                               8

<PAGE>

    relationship arises under other agreements between such parties. This
    restriction extends, but is not limited, to the use of any trade names,
    trademarks or logos used by such entities, or any colorable imitations of
    any such name or mark in or as a part of any business name or trade name, or
    in any other confusing or misleading manner. Authorized use of Company's
    Marks shall be as set out in Section 3 herein. Notwithstanding the
    foregoing, the Cingular logo may be used by Customer and/or agents or
    affiliates of Customer to present PowerPoint presentations and for other
    sales materials as deemed necessary by Customer. Printed sales materials may
    be subject to Company approval.

17. Rates and Charges.

    Except as otherwise set forth herein, the Customer agrees to pay the Company
    for Service used by the Customer and/or any End User at the rates and
    charges specified in Exhibit 3, (Pricing Plan).

18. Confidentiality.

    Company and Customer may (but shall not be obligated to) exchange certain
    Confidential Proprietary Information (as defined below) relating to this
    Agreement. The disclosing party agrees to mark its Confidential Proprietary
    Information with a suitable legend, such as "Confidential" at the time of
    disclosure to the receiving party hereunder ("Confidential Proprietary
    Information"). During the term of this Agreement, the receiving party agrees
    to maintain the confidentiality of the disclosing party's Confidential
    Proprietary Information furnished in oral, visual, written and/or other
    tangible form by restricting disclosure of the disclosing party's
    Confidential Proprietary Information to its employees who have a "need to
    know" and not disclosing such Confidential Proprietary Information to any
    third party except as authorized by the disclosing party in writing. The
    receiving party agrees that such Confidential Proprietary Information shall
    be handled with the same degree of care which the receiving party applies to
    its own confidential information (but in no event less than reasonable
    care). The receiving party agrees to use the disclosing party's Confidential
    Proprietary Information only for purposes of performing its obligations
    under this Agreement. The parties agree to exclude from the provisions of
    this Agreement and the obligations of confidentiality: information which the
    receiving party already had in its possession without confidential
    limitation; information known or that becomes known to the general public
    without breach of this Agreement; information that is received rightfully
    and without confidential limitation. This Section 18 shall impose no
    obligation of confidentiality upon a recipient with respect to any portion
    of Confidential Proprietary Information received hereunder which is required
    to be disclosed pursuant to a requirement of a judicial, administrative or
    other governmental agency, provided that the receiving party provides
    reasonable notice to the disclosing party of such requirement in order to
    enable the disclosing party, at its expense, to seek a protective order or
    such other remedy to prevent disclosure of the Confidential Proprietary
    Information.

    In the performance of this Agreement, Company agents and employees may come
    into possession of information about Customer's End Users, including but not
    limited to End User MINs (Mobile Identification Number) and Usage, or other
    forms of identification of End User. Neither Company nor any person or
    entity obtaining such information by or through Company may use any such
    information except as required to provide Service to Customer under this
    Agreement. Such information shall be treated as Confidential Proprietary
    Information pursuant to this Section 18.

    Upon termination of this Agreement, all Confidential Proprietary Information
    and any copies thereof made by the receiving party shall be either destroyed
    and the destruction certified by an officer of the receiving party, or, at
    the disclosing party's written request, returned to the disclosing party.
    The receiving party's

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                               9

<PAGE>
    obligations under this Agreement to keep confidential and restrict use of
    the disclosing party's Confidential Proprietary Information shall survive
    such termination of this Agreement for a period of five (5) years.

19. Licensing.

    Each party covenants and warrants that it will at all times maintain all
    Federal, state and local licenses appropriate and necessary for the conduct
    of its business and for the performance of this Agreement. Upon reasonable
    written request, each party will provide true and correct copies of all such
    licenses, together with appropriate evidence of all applicable renewals,
    extensions or changes of such licenses, to the other party.

20. Taxes.

    It shall be the Customer's sole responsibility both to collect and to remit
    any and all taxes (however designated, levied or based) on Service or any
    other item for which charges are imposed under this Agreement. Such
    responsibilities shall include, but not be limited to: Federal, state and
    local sales tax, gross receipts tax, privilege or excise taxes, and any
    taxes or amounts in lieu of any such tax ("Taxes"). The Customer shall be
    responsible for collecting all taxes from its End Users, and remitting all
    Taxes directly to the appropriate taxing jurisdictions. Further, the
    Customer shall provide the Company with all necessary Customer Exemption
    Certificates of Exemption from Tax, examples of which are attached to and
    made a part of this Agreement as Exhibits 4-1, 4-2 and 4-3. Unless and until
    properly executed copies of all applicable Customer Exemption Certificates
    of Exemption from Tax are provided to the Company, the Company will bill the
    Customer for, and Customer shall pay, all Taxes as if the Customer were the
    End User of Services and/or any other items for which charges are imposed
    under this Agreement.

21. Disconnection, Termination or Sale of Service and Sale or Disposal of End
    Users.

    21.1  By the Company.

          21.1.1    If the Customer violates any material provision of this
                    Agreement, which violation remains uncured after 30 days
                    written notice by the Company, then the Company may either
                    temporarily discontinue or permanently terminate the
                    Customer's Service in whole or in part. No Credit Allowance
                    (as described in Section 7.1 above) shall be made, and the
                    Company shall not be liable to Customer and/or any End User
                    for any damages whatsoever which may result from any such
                    Service interruption. Except as provided in Section 21.1.3,
                    below, after giving such notice, the Company will not
                    discontinue Service for at least thirty (30) days. If
                    Customer makes payment of the sum due within the thirty (30)
                    day period, then the Company shall neither temporarily
                    discontinue nor permanently terminate Customer's Service,
                    and Company's right to discontinue and/or terminate is
                    thereby invalidated.

          21.1.2    If the Customer fails to pay any sum due the Company, then
                    upon written notice to the Customer, the Company may either
                    temporarily discontinue or permanently terminate the
                    Customer's Service in whole or in part. No credit allowance
                    (as described in Section 7.1 above) shall be made, and the
                    Company shall not be liable to Customer and/or any End User
                    for any damages whatsoever which may result from any such
                    Service interruption. Except as provided in Section 21.1.3,
                    below, after giving such notice, the Company will not
                    discontinue Service for at least thirty (30) days.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              10

<PAGE>
          21.1.3    If the Customer uses Service and/or any Mobile Data Unit in
                    violation of this Agreement, then the Company will take all
                    action necessary to protect the Cellular System and/or the
                    Service, and notify the Customer of such violation. Upon
                    receipt of such notice, the Customer shall (i) immediately
                    discontinue or correct such use and (ii) within five (5)
                    days after receipt of the Company's notice, provide the
                    Company with written confirmation that such use has ceased.
                    If the Customer fails to discontinue or correct such use
                    within the time stated, then the Company may disconnect
                    Service (without credit allowance as described in Section
                    7.1, above) until the Customer complies with this Section
                    21.1.3.

          21.1.4    Notwithstanding Sections 21.1.1, 21.1.2 and 21.1.3, the
                    Company may refuse, discontinue or terminate Service with
                    thirty (30) days written notice to Customer in the event
                    that either Service or any Mobile Data Unit is used by the
                    Customer and/or End User in any way that can reasonably be
                    expected to have a material adverse effect on Service to
                    other customers. If such use is discontinued by Customer or
                    End-User within the thirty (30) day period, Company's right
                    to discontinue or terminate Service is invalidated.

          21.1.5    This Agreement may be terminated by the Company pursuant to
                    Section 4.1.

    21.2  By the Customer.

          This Agreement may be terminated by the Customer pursuant to Section
          4.1. In addition, Customer shall have the right to terminate this
          Agreement upon thirty (30) days written notice should the Service,
          through no fault of Customer, be unavailable or materially delayed or
          otherwise interrupted for an aggregate period of 24 hours or more
          during any 30-day period. Subject to Exhibit 3, the Customer is
          responsible for payment of all charges incurred or accrued during the
          Initial Contract Period and any extension thereof through the date of
          any such termination other than for the time that the Service was
          unavailable or materially delayed.

22. Assignment.

    Upon fifteen (15) days' written notice to the Customer, the Company may
    assign all of its rights, duties and obligations under this Agreement. This
    Agreement may not be assigned or transferred by the Customer, in whole or in
    part, without the prior written consent of the Company, not to be
    unreasonably withheld, except, however, that Customer shall have the right
    to assign its rights, obligations and privileges hereunder to a merger
    partner, successor in business, or acquirer of all or substantially all of
    Customer's stock, or equivalent equity securities business or assets without
    obtaining Company's consent to such assignment.

23. Compliance with Laws.

    This Agreement and the parties' actions under this Agreement shall comply
    with all applicable federal, state and local laws, rules, regulations, and
    court orders, and governmental agency orders, including FCC rules,
    regulations, and orders relating to resellers. If a court or governmental
    agency with proper jurisdiction determines that any provision of this
    Agreement is unenforceable, such provision will be enforced to the maximum
    extent permissible so as to effect the intent of the parties and the
    remainder of this Agreement shall continue in full force and effect.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              11

<PAGE>
24. Successors and Assigns.

    This Agreement shall be binding upon, and shall inure to the benefit of, the
    Parties and their respective employees, successors and assigns.

25. Waiver.

    No failure or delay on the part of either Party to exercise any right, power
    or remedy under this Agreement shall operate as a waiver of such right,
    power or remedy, nor shall any single or partial exercise of any right,
    power or remedy by any Party preclude the exercise of any other right, power
    or remedy. No express waiver or assent by any Party to any breach or default
    in performance of any provision of this Agreement shall constitute a waiver
    of or assent to any succeeding breach of or default in performance of the
    same or any other provision of this Agreement.

26. Entire Agreement.

    This Agreement contains the entire agreement between the Parties with
    respect to its subject matter. This Agreement (including all the attached
    Exhibits) supersedes all prior discussions and agreements between the
    Parties with respect to the subject matter of this Agreement. In the event
    of any conflict between the provisions of this Agreement and the provisions
    of any contract, service order or other document used by the Company or
    submitted by the Customer, the provisions of this Agreement shall control.
    This Agreement cannot be modified or amended except by a written instrument
    signed by both Parties, except as set forth herein.

27. Multiple Counterparts.

    The original and one or more copies of this Agreement may be executed by the
    Parties. All such executed copies shall have the same force and effect as
    the executed original, and all such counterparts, taken together, shall have
    the effect of a fully executed original.

28. Notices.

    Any notice or demand given in connection with this Agreement shall be
    sufficiently delivered if sent by personal delivery or certified mail return
    receipt requested or overnight service addressed to Company as:

          Ameritech Mobile Communications, LLC
          Attention: Vice President - Marketing
          2000 West Ameritech Center Drive
          Hoffman Estates, IL 60195-5000

    with a copy to:

          Ameritech Mobile Communications, LLC
          Attention: Legal Department, #3H78
          2000 West Ameritech Center Drive
          Hoffman Estates, IL 60195-5000

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              12

<PAGE>

    and to Customer as:

          At Road, Inc.
          47200 Bayside Parkway
          Fremont, CA 94538
          Attention: Director of Carrier Sales
          tleiby@road-inc.com

    with a copy to:

          At Road, Inc.
          47200 Bayside Parkway
          Fremont, CA 94538
          Attention: Legal Department
          jabalos@road-inc.com

    (or to such other address as either Party may designate in writing from time
    to time). Notice shall be deemed given upon receipt.

29. Headings.

    The headings and captions used throughout this Agreement are for reference
    and convenience only and shall neither be deemed a part of this Agreement
    nor affect the meaning or construction of any provision of this Agreement.

30. Governing Law and Choice of Forum.

    This Agreement is made and delivered in the State of Illinois, and shall be
    governed by, construed and enforced in accordance with Illinois law. Any
    lawsuit related to this Agreement or the activities contemplated by this
    Agreement may only be brought in, and the parties consent to the
    jurisdiction of, the United States District Court for the Northern District
    of Illinois (if Federal jurisdiction applies) or in the Circuit Court of
    Cook County, Illinois.

31. Survival.

    The Parties' obligations under this Agreement which by their nature are
    intended to continue beyond the termination or expiration of this Agreement
    shall survive the termination or expiration of this Agreement.

    EACH PARTY HAS FULL POWER AND AUTHORITY TO ENTER INTO, PERFORM, AND EXECUTE
    THIS AGREEMENT, AND EACH PERSON SIGNING THIS AGREEMENT ON BEHALF OF EITHER
    PARTY HAS BEEN PROPERLY AUTHORIZED AND EMPOWERED TO ENTER INTO AND EXECUTE
    THIS AGREEMENT.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              13

<PAGE>
IN WITNESS WHEREOF, the Company and the Customer have caused this Agreement to
be executed by duly authorized corporate officers on the date written below.

CUSTOMER:                                COMPANY:

AT ROAD, INC.                            AMERITECH MOBILE COMMUNICATIONS, LLC

By: /s/ KRISH PANU                       By: /s/ SHELLEY GOODMAN
   ------------------------------           ----------------------------------
Name: /s/ Krish Panu                     Name: Shelley Goodman
     ----------------------------             --------------------------------
Title: President                         Title: General Manager Business Sales
      ---------------------------              -------------------------------

Address: 47200 Bayside Parkway           Address: 2000 W. Ameritech Center Drive
         Fremont, CA 94538                        Hoffman Estates, IL 60195

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              14

<PAGE>
                      EXHIBIT 1: INTEROPERABILITY CARRIERS

                           Interoperability Carriers:

                                      AT&T

                                     VERIZON

                                     ALLTEL

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              15

<PAGE>
                          EXHIBIT 2: CDPD SERVICE AREA

                               CDPD Service Area:

                                Cincinnati, Ohio

                                  Dayton, Ohio

                                 Columbus, Ohio

                                Detroit, Michigan

See specific Company Cellular Digital Packet Data radio system coverage maps.
Range and coverage on maps are estimated.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              16

<PAGE>
                             EXHIBIT 3: PRICING PLAN

RATE: Customer will be billed monthly for data sent and received in the billing
period. The monthly minimum usage charge will be billed in advance. Usage will
be billed in arrears per Section III below. All Customer's home (non-visiting)
Usage with IP Addresses on Cellular System and Cellular Digital Packet Data
Network which are majority owned, or operated, by direct affiliates of Company's
general partner will be billed in accordance with Section III below.

II. TERMS AND CONDITIONS OF RATES AND CHARGES

    A. Payment of Charges:

       1)  The Customer is responsible for payment of all Service charges
           including, but not limited to, Usage charges for all transmissions
           sent from or received by the Customer's or End User's Mobile End
           System and all other charges billed to the Customer's IP Address(es).

       2)  A late payment charge ("Late Fee") equal to the lesser of: (a) 1.5%
           per month or (b) the highest amount allowed by law will be imposed on
           any unpaid balance remaining when any bill is not paid in full within
           thirty (30) days after transmittal thereof, unless the Customer
           provides the Company with the dispute notice described below. The
           Late Fee charge will be applied on the thirty-first (31st) day, to
           any unpaid balance carried forward, and will be imposed on each and
           every subsequent bill, until any outstanding balance is paid in full.

           If the Customer disputes any part of any bill, then in order to avoid
           incurring a Late Fee on the disputed amount(s), the Customer must
           provide the Company with a written notice of the dispute on or before
           the bill's original due date. The notice must identify each disputed
           item and state the reason why the item is disputed. The Late Fee will
           abate from the date the notice is received until the date of the
           Company's written response.

       3)  A charge of $25.00 will apply for each check, draft or similar
           negotiable instrument returned to the Company for any reason. This
           charge is in addition to any applicable Late Fee.

       4)  The Customer must pay all charges incurred by the Customer and/or any
           End User in connection with roaming service. Rates and charges for
           roaming service are determined by the wireless data interoperability
           carrier.

    B. Calculation of Charges: CDPD usage charges are incurred when data is sent
       or received by the MES. Prices are based on the volume of data
       transmitted or received, including user data and network overhead, as set
       out in this Exhibit.

    C. Contract Period: The Initial Contract Period and Renewal Periods for this
       Agreement will be as set forth in Section 4 of the Agreement. Neither the
       Initial Contract Period nor the subsequent Renewal Period(s), if any,
       will be affected by any change in the IP Address(es) assigned to a line
       in Service.

    D. Rates for Fractional Periods: If the Customer receives Service during any
       fractional part of a month, a proportionate part of the monthly access
       charge based on the actual number of days in which Service is provided
       will apply. For the purpose of determining such fractions, every month is
       considered to have 30 days.

    E. Adjustments for Taxes, Fees, etc.: Except for taxes generally imposed on
       corporations, the Company's rate schedules do not include any taxes,
       fees, or other like charges imposed by or for any municipal corporation
       or other political subdivision or government agency against the Company,
       its property or its operation. All applicable taxes, fees, or like
       changes with respect to Service shall be billed directly to the

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              17

<PAGE>
       Customer by the Company, unless the Customer shall have provided the
       Company a reseller exemption certificate in a form acceptable to the
       appropriate taxing authority.

    F. Billing:

       1)  The Company will direct all billing under this Agreement to the
           Customer. No bills will be directed to any End User. The Customer
           will receive a monthly printed bill in an electronic format to be
           mutually agreed upon by the parties. In addition, the Customer may
           request detailed usage for each IP Address in printed form. Company
           will ship all printed format pre-paid to Customer or preferred via
           electronic transmission.

       2)  Company shall not be liable for any inaccuracies in the visiting
           charges to Customer or other inaccuracies over which Company has no
           control. Customer expressly acknowledges that some charges incurred
           in a billing cycle may not appear on the invoice for such billing
           cycle and that such charges will appear on subsequent invoices.
           Customer is responsible for payment of any and all charges that are
           delayed or appear on subsequent invoices. Customer shall notify
           Company of any defects in the invoice within thirty (30) days of
           receipt. Nothing herein shall affect Company's right to amend,
           modify, change or otherwise update its billing cycle or billing
           systems after ninety (90) days prior written notice to Customer.

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              18

<PAGE>
III.  PRICE PLAN:

Unlimited--[*]

3 Megabyte/Month per IP and [*] overage charge--[*]

1 Megabyte/Month per IP and [*] overage charge--[*]
500K Month per IP and [*] overage charge--[*]

ROAMING CHARGES

[*]

                            Private and Confidential
   Except as set forth herein, the information contained herein shall not be
  disclosed to unauthorized persons. It is meant solely for use by authorized
  Ameritech Mobile Communications, LLC and Customer and employees and persons
                    employed, retained or consulted by them.

                                                                              19

[*] Confidential material redacted and filed separately
    with the SEC.
<PAGE>
                                   EXHIBIT 4-1

[AMERITECH LOGO]

                  Reseller's Certificate of Exemption from Tax

Place a check mark [X] in the appropriate box to indicate the tax(es) to be
exempted and complete the bottom portion of this certificate. Respective taxes
will be charged for the box(es) that remain unchecked. In order to validate this
certificate of exemption for Michigan, the Michigan Sales Tax License Number has
been requested. This certificate of exemption will remain invalid for Michigan
unless the license number is provided.

The undersigned certifies that the company named below is purchasing
telecommunication services and/or related tangible personal property from
Detroit SMSA Limited Partnership (the "Seller") for the exclusive purpose of
resale at retail and said services and/or related tangible personal property are
exempt from the tax(es) indicated below.

[ ] FEDERAL EXCISE TAX

    The undersigned certifies that the communication services furnished by the
    Seller will be used exclusively in the rendering of a communication service
    upon which tax is imposed by Section 4251 of the Internal Revenue Code. It
    is understood that no tax will be collected by the Seller on charges for
    said services, and that it will be the responsibility of the company named
    below to collect such tax as may be due from its customers and to remit it
    to the Internal Revenue Service.

[ ] MICHIGAN SALES AND USE TAX

    The undersigned certifies that the company named below is engaged in the
    business of providing telecommunication services and/or selling tangible
    personal property related to the provision of telecommunication services in
    the State of Michigan. The company named below is a registered taxpayer
    pursuant to the Michigan Sales Tax Law and the telecommunication services
    and/or related tangible personal property provided by the Seller will be
    resold in the normal course of business. It is understood that no tax will
    be collected by the Seller on charges for telecommunication services and/or
    sales of related tangible personal property. It will be the responsibility
    of the company named below to collect such tax as may be due from its
    customers and to remit it to the Michigan Department of Treasury. In the
    event that the telecommunication services and/or related tangible personal
    property are not resold, the company named below is required by the Michigan
    Sales Tax Law to report and pay tax directly

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
      by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              20

<PAGE>

    to the Michigan Department of Taxation. The tax will be measured by the
    purchase price of such telecommunication services and/or related tangible
    personal property.

-------------------------------------------
Michigan Sales Tax License Number

This is a blanket exemption certificate of exemption and remains in force for
three (3) years from the date of signature (unless an earlier expiration date is
listed) or until revoked in writing by the company named below or by the
Michigan Department of Treasury.

----------------------------           --------------------------------------
Company (Reseller's) Name              Name of Authorized Representative

----------------------------           --------------------------------------
Address                                Signature

----------------------------           --------------------------------------
City, State, Zip                       Title

----------------------------
Date

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              21

<PAGE>
                                   EXHIBIT 4-2

[AMERITECH LOGO]

                  Reseller's Certificate of Exemption from Tax

Place a check mark [X] in the appropriate box to indicate the tax(es) to be
exempted and complete the bottom portion of this certificate. Respective taxes
will be charged for the box(es) that remain unchecked. In order to validate this
certificate of exemption for Ohio, the Ohio Vendor's License Number has been
requested. This certificate of exemption will remain invalid for Ohio unless the
license number is provided.

The undersigned certifies that the company named below is purchasing
telecommunication services and/or related tangible personal property from
Cincinnati SMSA Limited Partnership (the "Seller") for the exclusive purpose of
resale and said services are exempt from the tax(es) indicated below.

[ ] FEDERAL EXCISE TAX

    The undersigned certifies that the communication services furnished by the
    Seller will be used exclusively in the rendering of a communication service
    upon which tax is imposed by Section 4251 of the Internal Revenue Code. It
    is understood that no tax will be collected by the Seller on charges for
    said services, and that it will be the responsibility of the company named
    below to collect such tax as may be due from its customers and to remit it
    to the Internal Revenue Service.

[ ] OHIO SALES AND USE TAX

    The undersigned certifies that the company named below is engaged in the
    business of providing telecommunication services and/or selling tangible
    personal property related to the provision of telecommunication services in
    the State of Ohio. The company named below is a registered taxpayer pursuant
    to the Ohio Sales and Use Tax Law and the telecommunication services and/or
    related tangible personal property provided by the Seller will be resold in
    the normal course of business. It is understood that no tax will be
    collected by the Seller on charges for said services and/or sales of related
    tangible personal property. It will be the responsibility of the company
    named below to collect such tax as may be

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              22

<PAGE>
    due from its customers and to remit it to the Ohio Department of Taxation.
    In the event that the telecommunication services and/or tangible personal
    property are not resold, the company named below is required by the Ohio
    Sales and Use Tax Law to report and pay tax directly to the Ohio Department
    of Taxation. The tax will be measured by the purchase price of such
    telecommunication services and/or related tangible personal property.

-------------------------------
Ohio Vendor's License Number

This is a blanket exemption certificate and remains in force until revoked in
writing by the company named below or by the Ohio Department of Taxation.

----------------------------           --------------------------------------
Company (Reseller's) Name              Name of Authorized Representative

----------------------------           --------------------------------------
Address                                Signature

----------------------------           --------------------------------------
City, State, Zip                       Title

----------------------------
Date

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
       by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              23

<PAGE>
                                   EXHIBIT 4-3

[AMERITECH LOGO]

                            CERTIFICATE OF EXEMPTION

                             FROM FEDERAL EXCISE TAX

I certify that the telecommunication services purchased by
____________________________ will be used exclusively in the rendering of
telecommunication services upon which tax is imposed by Section 4251 of the
Internal Revenue Code. I further certify that ____________________________ is in
the business of providing telecommunication services to end-user customers and
assumes the responsibility for collection of federal excise tax as may be due
and will remit such tax to the Internal Revenue Service. This certificate is
valid until rescinded in writing.

Name and Address of Purchaser/Reseller:

Attention:
          -----------------------------

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

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

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

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

            (Signature)

Title:
      ---------------------------------

Date:
     ----------------------------------

                            Private and Confidential
    Except as set forth herein, the information contained herein shall not be
          disclosed to unauthorized persons. It is meant solely for use
      by authorized Ameritech Mobile Communications, LLC and Customer and
         employees and persons employed, retained or consulted by them.

                                                                              24<PAGE>

                                                                   EXHIBIT 10.31

                                                       Contract No. 58741-100104

                  ALLTEL WIRELESS DATA PACKET SERVICE AGREEMENT

      This Service Agreement is entered into by and between At Road, Inc. a
Delaware Corporation, with a principal place of business located at 47200
Bayside Parkway, Fremont, CA 94538, ("Customer") and ALLTEL Communications Inc.
(ACI) doing business as ALLTEL (hereinafter known as "ALLTEL") with a principal
place of business located at 1 Allied Drive, Little Rock, Arkansas 72202, and
with offices at 11333 N. Scottsdale Road, #200, Scottsdale, Arizona 85254 (the
"Agreement"), for the provision of Wireless Data Packet Services as set forth
herein.

                                      TERMS

1.    DEFINITIONS.

      As used herein the following terms shall have the following respective
      meaning:

      1.1   Affiliate. Any person, association, co-partnership, corporation, co-
            tenant or joint-stock or trust (hereinafter "person") that directly
            or indirectly, through one or more intermediaries, controls, is
            controlled by or is under common control with another person.
            Control shall be defined as (i) ownership of half or a majority of
            the voting power or all classes of voting stock or (ii) ownership of
            half or a majority of the beneficial interests in income and capital
            of an entity other than a corporation.

      1.2   Area. The markets listed in Exhibit A within which ALLTEL either is
            licensed and authorized by the FCC to provide commercial mobile
            service, or manages on behalf of the FCC licensee and in which
            ALLTEL currently provides ALLTEL Wireless Data Packet Service.

      1.3   Authorized User. Individuals or companies authorized by Customer to
            use the System pursuant to the terms and conditions of this
            Agreement.

      1.4   Cellular Digital Packet Data Service ("CDPD"), Wireless Data Packet
            Service, or Service. The cellular radio telecommunications service,
            as defined at 47 CFR Part 22, Subpart H, provided by ALLTEL pursuant
            to license from the Federal Communications Commission, utilizing
            packet switching technology to transmit data over radio frequency

                                                                           10.31

<PAGE>

            channels. The raw data rate of CDPD is approximately 19.2 Kilobits
            per second.

      1.5   Equipment Identifier (EID). An electronic serial number placed in a
            CDPD radio modem.

      1.6   Fixed End System (FES). A host computer(s) operated by or on behalf
            of Customer.

      1.7   Home Area. The Area in Exhibit A where the NEI of the Authorized
            User is activated in and authenticated from.

      1.8   Internet Protocol Address (IP). The unique numeric character string
            used to identify each CDPD modem. This I.P. address is hard coded
            into the firmware of the modem, and is used in the CDPD session
            registration process.

      1.9   Kilobyte. A kilobyte is 1000 octets of data, measured at the IP
            packet layer (what is the IP packet layer). IP header and data
            octets are included in the kilobyte count.

      1.10  Mobile Data Base Station ("MDBS"). The unit located at ALLTEL cell
            sites which serves as the data link relay point for the Service. The
            MDIS communicates with each MES through the MDBS.

      1.11  Mobile End System ("MES"). A data terminal, CDPD radio modem, and
            antenna.

      1.12  Mobile Data Intermediate Systems ("MDIS"). The component of the
            ALLTEL Wireless Data Packet Service network which performs routing
            and which contains the network control functions, including the
            mobility manager, registration and authentication functions.

      1.13  Network Entity Identifier ("NEI"). A network address assigned to the
            MES. Each MES has an NEI and a unique corresponding EID for
            authentication purposes.

      1.14  Packet. The continuous sequence of binary digits of information,
            which is routed through the ALLTEL Wireless Data Packet Service
            network as an integral unit. Packet sizes can be flexible within a
            range of "0" user bytes to a maximum of "2048" bytes.

      1.15  Roaming. Service, provided to Customer by ALLTEL in Areas outside
            the Home Area, which may be provided by ALLTEL or may be provided
            pursuant to, and based on the terms and conditions (including
            costs), between ALLTEL and another Service provider. ALLTEL may from
            time to time during the term of this Agreement modify or change the
            Areas for which it provides Roaming to the Customer.

      1.16  Service. The ALLTEL Wireless Data Packet Service, including any
            Roaming made available by ALLTEL, provided pursuant to this
            Agreement.

                                       2
<PAGE>

      1.17  System. The Cellular Digital Packet Data, (CDPD) network as it is
            defined in the geographic Areas of Exhibit A.

2.    PROVISION OF SERVICE.

      Subject to the terms and conditions of this Agreement, ALLTEL agrees to
sell and Customer agrees to purchase the Service from ALLTEL within the Areas
identified in Exhibit A. Customer is not contracting for resale of switched
services and nothing contained herein shall be construed as entitling Customer
to or requiring ALLTEL to provide Customer with access to ALLTEL's System, or
any of ALLTEL's facilities or equipment. During the term of this Agreement and
thereafter, ALLTEL reserves the right without obligation or liability to
Customer, to compete with Customer by selling Services in the Areas, or any
other area, to others, including Authorized Users, whether through ALLTEL's own
direct sales organization or through other related or unrelated agents,
customers or representatives.

3.    PRICING.

      The rate for the Service provided by ALLTEL is set forth in Exhibit B. The
availability of such rate is restricted to the applications set forth in Exhibit
B.

4.    INSTALLATION.

      At Customer's request, and based upon ALLTEL's sole discretion, ALLTEL
will provide and/or arrange for installation services of MES equipment in an
Area. The rate for such installation services will be negotiated on a case by
case basis, will be paid in advance of the performance of any installation
provided by ALLTEL, and will be included in a separate attachment to this
Agreement.

5.    COMMITMENT OF CUSTOMER

      Customer shall, unless otherwise agreed upon in writing and in advance, at
its sole expense:

      5.1   purchase and maintain any equipment that Customer and/or its
            Authorized Users may require to communicate with the System; and

      5.2   establish and maintain facilities or services for connecting
            Customer's and/or its Authorized Users' networks or host processors
            to the System (such as private line connections and/or frame relay
            service); and

      5.3   maintain at its sole expense and option, all MES's and ensure that
            each is technically and operationally compatible with the Service

                                       3
<PAGE>

            network and is in compliance with applicable state and federal laws,
            rules, and regulations; and

      5.4   procure any other items or services, including, but not limited to,
            any applications software or professional services that may be
            required by Customer and/or its Authorized Users in connection with
            the Service and/or this Agreement; and

      5.5   submit a completed copy of the form entitled, "ALLTEL Wireless Data
            Packet Service Request Form", attached hereto as Exhibit C, for
            modification, addition or deletion of NEls/ElDs during the term of
            this Agreement; and

      5.6   pay and hereby guarantee the payment of all invoices presented by
            ALLTEL under the terms of this Agreement.

      5.7   Customer will provide ALLTEL with a valid federal tax exemption
            certificate of resale and a valid state tax exemption certificate of
            resale, if required. ALLTEL will not calculate any local, state or
            federal tax nor include such amounts in billing. Customer will be
            solely responsible for any and all tax obligations on its business
            operation and Authorized Users, including without limitation all
            surcharges, levies, state or federal universal service charges, and
            any other local, state or federal revenue collection obligation.

      5.8   In addition to the charges set forth in this Agreement, ALLTEL may,
            if customer's performance dictates the need, at its sole discretion,
            require Customer to pay a cash deposit or to provide a letter of
            credit acceptable to ALLTEL in an amount to be determined by ALLTEL
            to be held by ALLTEL as a guarantee of the payment of charges set
            forth in this Agreement. At such time as this Agreement has expired
            or is terminated, if Customer has performed fully all terms and
            conditions of this Agreement, the amount of deposit, including
            accrued interest in the amount of 6 percent (6%) per annum, on cash
            deposit only, will be credited to Customer's final invoice and any
            credit balance which remains will be refunded. Deposits may also be
            returned at any time previous thereto at the sole discretion of
            ALLTEL. If Customer supplies ALLTEL a letter of credit in place of a
            cash deposit, the letter of credit must cover the tern of this
            Agreement plus 90 days.

      5.9   The amount of deposit which Customer will be required to pay upon
            execution of this Agreement shall be $ 0 (zero). At its sole
            discretion, ALLTEL may require the amount of the deposit to be
            increased to two times the amount of the most recently billed
            monthly invoice. At no time will the deposit be less than $ 0
            (zero). The amount of a deposit may be adjusted further by ALLTEL
            based upon Customer's credit worthiness or at any time ALLTEL finds
            the character or degree of use

                                       4
<PAGE>

            of the Service materially changes or when it is apparent that the
            character or degree of use of the Service will materially change in
            the immediate future. Required increases in deposits shall be
            remitted by wire transfer or new letter of credit within fifteen
            (15) days of receipt of notice.

      5.10  The deposit may be applied by ALLTEL to any unpaid balances past
            thirty (30) days or to any unpaid balances on termination or
            default. This right of offset is in addition to all other rights or
            remedies available to ALLTEL. In the event of such an offset,
            Customer shall restore the deposit to an amount acceptable to ALLTEL
            within fifteen (15) business days after notice from ALLTEL.

      5.11  If any dispute arises concerning any collection of charges or any
            offset, Customer must give ALLTEL written notice of the nature and
            amounts of the dispute within sixty (60) days of the date of receipt
            of invoice reflecting the alleged improper collection or offset. If
            no such notice is received by ALLTEL within such time period, the
            collection or offset made shall be considered final and Customer may
            not thereafter dispute the nature or amount of the collection or
            offset.

      5.12  Customer shall provide an adequate staff to receive and investigate
            any complaints from its Authorized Users relating to the Service,
            and will report any trouble with the Service to ALLTEL only upon
            reasonable verification that such trouble is due to reasons other
            than the misuse or malfunctioning of the Authorized User's equipment
            or the failure of such equipment to meet the technical standards for
            compatibility with the Service. Customer shall reimburse ALLTEL for
            all reasonable costs and expenses associated with any investigation
            by ALLTEL of complaints reported by Customer pursuant to this
            paragraph. Customer shall not be responsible for reimbursement if
            ALLTEL'S investigation reveals that ALLTEL's actions or systems were
            a substantial contributing cause of such complaint.

      5.13  Customer will provide an adequate staff to market the Service and to
            train and support its Authorized Users with respect to the Service.

      5.14  Customer shall, prior to the commencement of marketing of Service,
            provide its form of Authorized User contract, if any, to ALLTEL for
            ALLTEL's review. ALLTEL's review shall be limited to ascertaining
            whether the proprietary and legal interests of ALLTEL are adequately
            protected in such contract, that the terms do not contradict the
            terms of this Agreement, as well as determining if written
            disclosure of Authorized User's duties, obligations, rights and
            liabilities under this Agreement and mandatory language such as that
            provided below have been included. ALLTEL shall have no liability as
            a result of its review of the Authorized User contract. Customer may
            delete confidential information not relating to ALLTEL's interests
            from such contract

                                       5
<PAGE>

            prior to submitting it for review. Customer represents and warrants
            that it will make no representations as to the performance of ALLTEL
            in providing Service to its Authorized Users. Customer represents
            and warrants that any and all of its contracts with Authorized Users
            will contain language substantially similar in all material respects
            to the three paragraphs set forth below:

            5.14.1  Authorized User has no property right in the IP Address.

            5.14.2  Authorized User expressly understands and agrees that the
                    liability and obligations of Customer to Authorized User
                    under this Agreement for Service are strictly controlled and
                    limited by the underlying carrier's tariff, if any, and the
                    laws, rules and regulations of the Federal Communications
                    Commission and other governmental authorities which may from
                    time to time have jurisdiction. In any event, regardless of
                    the form of the action, whether for breach of contract,
                    warranty, negligence, strict liability in tort or otherwise,
                    Authorized User's exclusive remedy and the total liability
                    of Customer and/or any supplier of Service to Customer
                    arising out of or in any way connected, directly or
                    indirectly, with this Agreement, for any cause whatsoever,
                    including but not limited to any failure or disruption of
                    Service provided hereunder, shall be limited to payment by
                    Customer of damages limited to an amount equivalent to a pro
                    rata adjustment of the fixed monthly charges for Service,
                    payable by Authorized User under this Agreement for this
                    period during which such damages occur. In no event shall
                    Customer and/or supplier of Service to Customer be liable
                    for any special or consequential damages. No action
                    regardless of form arising out of the transactions hereunder
                    may be brought by Authorized User more than one year after
                    the cause of action has accrued.

            5.14.3  Unless caused by the negligence of Customer, Authorized User
                    shall indemnify and hold Customer, ALLTEL, their officers,
                    employees, suppliers of service, and agents harmless against
                    any and all claims, demands, suits, judgments, causes of
                    action, losses, expenses, fees (including attorneys' fees),
                    liability or damages for libel, slander or infringement of
                    copyright from the material transmitted via the Service, and
                    against any and all other claims, demands, suits, judgments,
                    causes of action, losses, expenses, fees (including
                    attorney's), liability or damages, including without
                    limitation for any personal injury or death, arising in any
                    way directly or indirectly in connection with this Agreement
                    of the use of or inability to use the Service. This
                    indemnity shall survive the termination of this Agreement.

                                       6
<PAGE>

6.    AVAILABILITY OF THE SERVICE.

      The Service is available for Customer and/or its Authorized Users who are
equipped for the Service when they are within the range of cell sites in the
Area that provide the Service, or in an Area or area in which ALLTEL makes
Roaming available to its customers, as ALLTEL may modify from time to time
throughout the term of this Agreement.

      6.1   The Customer acknowledges and agrees that the Service is subject to
            transmission limitations caused by atmospheric and other conditions
            beyond ALLTEL's control. The Service may be temporarily interrupted
            or curtailed due to reasons including without limitation government
            regulations, suspected fraudulent activities, equipment
            modifications, upgrades, relocations, acts or omissions of other
            parties, repairs and similar activities necessary or appropriate for
            the proper or improved operation of the Service.

      6.2   The Customer acknowledges and agrees that the Service, although
            encrypted, is capable of being intercepted without knowledge of or
            permission from Customer or any Authorized User by unauthorized
            third parties possessing certain types of devices or equipment.

      6.3   Commitment of ALLTEL

            ALLTEL shall report all network outages to Customer via e-mail if
            the ALLTEL system fails to function for any reason within Four (4)
            hours of ALLTEL Data Customer Services receiving notice of the
            outage. ALLTEL shall make all reasonable efforts to repair network
            outages and shall notify Customer via e-mail within Four (4) hours
            of restoration of services. Refer to Section 12 herein for
            information regarding Customer credit for outages.

7.    COMPLIANCE WITH LAWS AND TARIFFS.

      This Agreement and performance hereunder are subject to any required
local, state and federal laws or regulations, including any applicable tariffs
filed by ALLTEL. Where required, ALLTEL shall commence the process for
submission of any such filings upon execution of this Agreement.

8.    BILLING.

      ALLTEL will provide Customer with a monthly invoice for the Service
provided under this Agreement. Electronic billing will be used if possible.

                                       7
<PAGE>

      8.1   The invoice will identify charges in accordance with Exhibit B.
            Terms of payment shall be net thirty (30) days from the date of the
            invoice.

      8.2   Payments received more than thirty (30) days after the date of the
            invoice will incur a late payment charge in the amount of the
            greater of one and one-half percent (1 1/2%) of the unpaid balance
            or the applicable limit (if any) set by law for each month or
            fraction thereof that such balance shall remain unpaid.

      8.3   The invoice will individually identify each billable ALLTEL Wireless
            Data CDPD IP assigned to Customer. Each IP will show total monthly
            data usage defined by "home" and "roaming" data totals and
            subsequent charges as defined in Exhibit "B".

      8.4   Customer will incur, and be responsible for payment of, Roaming
            charges whenever CDPD service registration is granted to IP's
            provided by ALLTEL to Customer in any Area outside the IP's Home
            Area.

      8.5   The Home Area is identifiable to the CDPD modem through ALLTEL's
            SPNI identification number.

9.    FRAUD AND ABUSE.

      9.1   Fraud. Any attempt to abuse or to use Service fraudulently or
            illegally by Customer shall be deemed a material breach of the
            Agreement. ALLTEL may, by written notice to Customer, require
            Customer to cancel the right to use Services by any Authorized User
            abusing or fraudulently or illegally using Services, and failure of
            Customer to immediately cancel such Authorized User's rights upon
            receipt of said notice shall be deemed a material breach of this
            Agreement. Notwithstanding any provisions herein to the contrary,
            such material breach shall immediately entitle ALLTEL to any and all
            remedies that may exist hereunder and at law or equity.

      9.2   Action to abuse. In the event that any Authorized User interferes
            with the System in such a way as to impair the quality of the
            Service provided by ALLTEL, upon discovery of any such abuse, the
            party having such knowledge shall notify the other party, and
            Customer shall immediately order Authorized User to cease from
            engaging in such act(s) of interference. ALLTEL shall have the right
            to discontinue Service provided to that Authorized User immediately.
            Customer shall assist ALLTEL in taking all action reasonably
            necessary to prevent further interference.

10.   LIMITATION OF LIABILITY.

                                       8
<PAGE>

      10.1  IN NO EVENT SHALL ALLTEL BE LIABLE TO CUSTOMER, ITS AUTHORIZED
            USERS, OR ITS EMPLOYEES AND/OR AGENTS OR ANY OF THEM, OR ANY THIRD
            PARTY, FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL,
            PUNITIVE DAMAGES, OR LOST PROFITS FOR ANY CLAIM OR DEMAND OF ANY
            NATURE OR KIND, INCLUDING, BUT NOT LIMITED TO, USE OR INABILITY TO
            USE/ACCESS THE SERVICE, INCLUDING, BUT NOT LIMITED TO, RELIANCE BY
            CUSTOMER AND/OR AN AUTHORIZED USER ON ANY DATA OBTAINED THROUGH USE
            OF THE SERVICE, ANY INTERRUPTION, DEFECT, ERROR, VIRUS OR DELAY IN
            OPERATION OR TRANSMISSION, ANY FAILURE TO TRANSMIT OR ANY LOSS OF
            DATA, ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT OR THE
            PERFORMANCE OR BREACH THEREOF.

11.   DISCLAIMER OR WARRANTIES

      11.1  DUE TO THE POSSIBILITY OF ERRORS INCIDENT IN THE USE OF THE SERVICE,
            THE SERVICE FURNISHED BY ALLTEL IS SUBJECT TO THE TERMS, CONDITIONS
            AND LIMITATIONS SPECIFIED HEREIN. ALLTEL MAKES NO WARRANTY, EITHER
            EXPRESS OR IMPLIED, CONCERNING THE SERVICE, INCLUDING WITHOUT
            LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR PARTICULAR
            PURPOSE OR USE.

      11.2  CUSTOMER ACKNOWLEDGES IT HAS SELECTED CUSTOMER'S SOFTWARE AND/OR
            EQUIPMENT (INCLUDING EQUIPMENT THAT MAY BE PURCHASED BY CUSTOMER
            THROUGH ALLTEL). ALLTEL HAS MADE AND MAKES NO REPRESENTATIONS OR
            WARRANTIES WHATSOEVER, DIRECTLY OR INDIRECTLY, EXPRESS OR IMPLIED,
            AS TO THE SUITABILITY, DURABILITY, FITNESS FOR PARTICULAR PURPOSE OR
            USE, MERCHANTABILITY, CONDITION OR QUALITY OF THE CUSTOMER SELECTED
            EQUIPMENT AND/OR SOFTWARE. ALLTEL SHALL NOT BE LIABLE TO CUSTOMER
            AND/OR ANY AUTHORIZED USER FOR ANY LOSS, DAMAGE OR EXPENSE OF ANY
            KIND OR NATURE CAUSED DIRECTLY OR INDIRECTLY BY THE CUSTOMER
            SELECTED EQUIPMENT AND/OR SOFTWARE, OR BY THE USE OR MANUFACTURE
            THEREOF, OR BY ANY REPAIR, SERVICE OR ADJUSTMENT THERETO OR BY ANY
            INTERRUPTION OF SERVICE OR LOSS OF USE THEREOF, OR FOR ANY

                                       9
<PAGE>

            LOSS OF BUSINESS OR DAMAGE WHATSOEVER AND HOWSOEVER CAUSED.

12.   CREDIT FOR OUTAGES

      Except as provided in Section 18, no credit or adjustment will be made for
interruptions of the Service unless the interruption continues for a period of
twenty-four (24) hours or more, measured from the time the interruption
commences. In the event of an interruption of the Service that continues for a
period of twenty-four (24) hours or more, credit allowance will be made, at
Customer's request, for a pro-rata amount not to exceed the minimum charge per
NEI for that month for each NEI rendered inoperative by the interruption. The
credit shall be available only where the interruption is in no part due to the
acts or omissions of Customer or an Authorized User whether negligent or
otherwise or by interruptions caused by failure of equipment or service not
provided by ALLTEL. The foregoing credit shall be the sole and exclusive remedy
to Customer and/or Authorized User for any interruption of the Service. In order
to be eligible for any such credit, Customer must request the credit within
sixty (60) days of the commencement of the interruption.

13.   USE OF THE SERVICE.

      13.1  The Service furnished hereunder is for use only by Customer or its
            Authorized Users.

      13.2  Customer will be liable for all usage and administrative charges and
            any other losses, damages, charges or expenses arising from or out
            of the fraudulent use of Service, including unauthorized use
            resulting from or attributable to Customer and/or its Authorized
            Users. The parties will actively cooperate in order to minimize the
            fraudulent or other unauthorized use and subsequent abuse of the
            Service provided by ALLTEL.

14.   USE OF MARKS.

      14.1  Customer shall not, directly or indirectly, hold itself out as or
            otherwise create the impression that it is sponsored, authorized,
            endorsed by, affiliated with, or an agent of ALLTEL or an affiliate
            thereof. Additionally, Customer shall not use any mark used by
            ALLTEL, or any colorable imitation thereof, in or as part of any
            company name or trade name or in any other confusing or misleading
            manner, without the prior written consent of ALLTEL. Nothing
            contained in this Agreement is intended to convey a license to use
            any such trademarks, service marks or trade names.

      14.2  Customer is granted permission to mention this Agreement in its
            filings with any governmental entities.

                                       10
<PAGE>

15.   INDEMNIFICATION.

      15.1  Customer hereby agrees to defend, indemnify, and hold harmless
            ALLTEL and its parents, affiliates, and subsidiaries, and each of
            them, including without limitation each of their directors,
            officers, shareholders, employees, agents, and contractors, from and
            against any third-party or other liabilities, losses, demands,
            suits, judgments, causes of action, claims, costs, and expenses,
            including reasonable attorneys' fees (hereinafter collectively
            referred to as "Claims") arising out of, or in any way connected,
            with this Agreement, or the provision of, or the failure to provide,
            Service, including without limitation for any breach of this
            Agreement, including the breach of any warranty or representation
            made by the Customer under this Agreement, from personal injury,
            property damage, patent or copyright infringement caused by or
            related to equipment sold by Customer which has not been provided or
            purchased from ALLTEL, or otherwise arising from or related to the
            negligence or acts or omissions of Customer or its parents,
            employees, agents, affiliates and subsidiaries, or any Claims by any
            Authorized Users for lack of privacy. ALLTEL will notify Customer
            promptly in writing of any Claims for which indemnification pursuant
            to this paragraph is sought. ALLTEL and Customer will cooperate in
            every reasonable manner in the defense of such Claims. Customer
            shall defend ALLTEL at ALLTEL's request, against any Claims.
            Customer shall have the right to control the defense and settlement
            of claims. The foregoing indemnification shall apply regardless of
            whether Customer or ALLTEL defends such suit or claims.

16.   TERM OF AGREEMENT.

      16.1  This Agreement shall be effective when executed by both an
            authorized representative of ALLTEL and an authorized representative
            of Customer ("Effective Date"). The term of this Agreement shall be
            two (2) years from the Effective Date. The term for each IP address
            shall be for two (2) years, and shall be automatically renewed
            unless terminated prior to the end of the then current term upon
            thirty (30) days written notice. All IP's activated by Customer
            shall be freely transferable, without additional restrictions
            imposed by ALLTEL, to a new device ID.

17.   TERMINATION OF THE SERVICE.

      17.1  Upon termination, as set forth in Section 18 below, for any reason,
            ALLTEL may immediately, without incurring any liability, discontinue
            or interrupt the furnishing of the Service to Customer.

      17.2  Should any MES or IP address used with the Service violate any of
            the provisions of this Agreement, ALLTEL may, without incurring any
            liability, take such action as it may, in its sole discretion,
            determine is necessary or appropriate for the provision of the
            Service, including termination of Service to the MES or IP address.
            Customer shall effect the discontinuance of any use of any MES that
            is in violation of

                                       11
<PAGE>

            this Agreement immediately upon notice to it by ALLTEL, and shall
            confirm in writing to ALLTEL within five (5) business days that such
            use has been discontinued. ALLTEL may, in sole discretion, choose to
            restore service to the MES in question.

18.   TERMINATION OF AGREEMENT.

      18.1  Upon Default by either Party under this Agreement, of which the
            other Party has been given written notice, and which the defaulting
            Party has not cured within thirty (30) days of such written notice
            the nondefaulting Party may, without incurring any liability,
            immediately terminate this Agreement.

      18.2  For purposes of this Section 18, "Default" shall be defined as:

            18.2.1  Failure by Customer to pay any charge when due or the
                    failure of either Party to perform or observe any term or
                    condition of this Agreement; or

            18.2.2  Commencement by a Party of any proceeding in bankruptcy,
                    reorganization, or insolvency; institution against the other
                    Party of any proceeding in bankruptcy, reorganization, or
                    insolvency that is acquiesced to or not dismissed within
                    thirty (30) days; appointment of a receiver for any
                    substantial part of the Party's assets; the making of an
                    assignment for the benefit of creditors or an admission in
                    writing of the Party of its inability to pay its debts as
                    they mature.

19.   PROPRIETARY INFORMATION; CONFIDENTIALITY

      19.1  Customer may transmit to ALLTEL and ALLTEL may receive from
            Customer, certain Customer Confidential Proprietary Information
            relating to but not limited to Customer's Service Accounts,
            marketing techniques, or business. ALLTEL may transmit to Customer,
            and Customer may receive from ALLTEL certain ALLTEL Confidential
            Proprietary Information including but not limited to ALLTEL Service,
            Facilities, equipment, business, or rates. Confidential Proprietary
            Information means any information and documentation marked or
            labeled as "Confidential", together with other information and
            documentation intended by the disclosing party to be confidential,
            including, without limitation, revenue reports, names of Authorized
            Users, billing and usage information, and the terms and conditions
            of this Agreement.

      19.2  The receiving party shall maintain the confidentiality of the
            disclosing party's Confidential Proprietary Information furnished in
            oral, visual,

                                       12
<PAGE>

            written and/or other tangible form and shall not disclose such
            information to any third party, except as authorized by the
            disclosing party in writing.

      19.3  The receiving party agrees to restrict disclosure of the disclosing
            party's Confidential Proprietary Information to its employees or
            consultants who have a "need to know". The receiving party agrees
            that such Confidential Proprietary Information shall be handled with
            the same degree of care which the receiving party applies to its own
            similar confidential information (but in no event less than
            reasonable care).

      19.4  The receiving party agrees to take precautions necessary and
            appropriate to guard the confidentiality of the disclosing party's
            Confidential Proprietary Information including informing its
            employees, agents, attorneys, and representatives who handle such
            information that it is confidential and not to be disclosed to any
            third party, except as authorized by the disclosing party in
            writing.

      19.5  The receiving party agrees that the disclosing party's Confidential
            Proprietary Information is and shall at all times remain the
            property of the disclosing party, except in the event of uncured
            default by Customer, ALLTEL reserves the right to access Customer's
            Authorized User information solely to provide continuity of Service
            to the End User. No use of such Information is permitted except as
            otherwise provided herein and no grant under any of the disclosing
            party's intellectual property rights is hereby given or intended
            including any license implied or otherwise.

      19.6  The receiving party agrees to use the disclosing party's
            Confidential Proprietary Information only for purposes of fulfilling
            its obligations under this Agreement.

      19.7  The parties agree to exclude from the provisions of this Agreement
            and the obligations of confidentiality: Confidential Proprietary
            Information which the receiving party already had in its possession
            without confidential limitation at the time of disclosure by the
            disclosing party; information which is independently developed by
            the receiving party without breach of this Agreement; information
            known or that becomes known to the general public without breach of
            the Agreement by the receiving party; and information that is
            received rightfully without confidential limitation by the receiving
            party from a third party and information that is disclosed pursuant
            to lawful process or applicable regulatory authority.

      19.8  Upon termination of this Agreement, all Confidential Proprietary
            Information transmitted to the receiving party by the disclosing
            party in record bearing media or other tangible form, and any copies
            thereof made by the receiving party shall be destroyed and
            destruction verified in writing by an officer of the receiving party
            or, at the disclosing party's written request, returned to the
            disclosing party, except that the receiving party shall be

                                       13
<PAGE>

            entitled to retain a secure copy of the disclosing party's
            Confidential Proprietary Information for archival purposes. The
            receiving party's obligations under this Agreement to keep
            confidential and restrict use of the disclosing party's Confidential
            Proprietary Information shall survive such completion or termination
            of the Agreement for a period of three (3) years, provided, however,
            that such obligation shall continue indefinitely as to any
            Confidential Proprietary Information constituting a trade secret.

      19.9  Notwithstanding the foregoing, the parties hereto agree to adhere to
            Section 222 of the Communications Act of 1934 as amended and Section
            64.2001-64.2009, as such may from time to time be amended, of the
            Rules and Regulations of the Federal Communications Commission
            regarding access to, and distribution of, Customer Proprietary
            Network Information and other confidential subscriber information.

20.   MISCELLANEOUS.

      20.1  Entire Agreement; Amendment. This Agreement and the attached
            Exhibits constitute the entire agreement between the parties with
            respect to the provision of the Service and associated services and
            supersede all prior agreements, proposals, and understandings,
            whether written or oral. Any modification or waiver of any provision
            of this Agreement must be in writing and signed by authorized
            representatives of the parties.

      20.2  Severability. If any provision, or portion thereof, of this
            Agreement is invalid or unenforceable under applicable statute or
            rule of law, it is only to that extent to be deemed omitted, and
            such unenforceability shall not affect any other provision of this
            Agreement, but this Agreement shall then be construed as if such
            unenforceable provision or provisions had never been contained
            herein.

      20.3  Independent Contractor. No party nor its employees or agents shall
            be deemed to be employees or agents of the other party, it being
            understood that each party is an independent contractor for all
            purposes and at all times, and each party shall be wholly
            responsible for withholding and payment of all federal, state, and
            local income and other payroll taxes with respect to its employees,
            including contribution from them as required by law.

      20.4  Waiver. The failure by Customer or ALLTEL at any time to enforce any
            of the provisions of this Agreement or any right with respect
            thereto, will in no way be construed to be a waiver of such
            provisions or rights or in any way to affect the validity of this
            Agreement. The exercise by a party of any rights under the terms or
            provisions of this Agreement shall not preclude or prejudice the
            exercising thereafter of the same or any other right.

                                       14
<PAGE>

      20.5  Governing Law. Subject to any tariffs on file with any state or
            federal regulatory body, this Agreement shall be governed by the law
            of the State of Arizona regardless of any conflicts of laws or
            rules, which would require the application of the laws of another
            jurisdiction.

      20.6  Notices. Any notice to be given hereunder by either party to the
            other shall be in writing and shall be valid and sufficient if
            dispatched by: a) registered or certified mail, postage prepaid in
            any post office in the United States; b) hand delivery; or c)
            overnight courier prepaid.

            Notices to ALLTEL shall be addressed to:

              Attention:     Mark Fletcher
                             Alltel Communications
                             11333 N. Scottsdale Road, #200
                             Scottsdale, Arizona 85254

            with a copy to:  Contracts Manager
                             Alltel Communications
                             11333 N. Scottsdale Road, #200
                             Scottsdale, Arizona 85254

            Notices to Customer shall be addressed to:
                             At Road, Inc.
                             47200 Bayside Parkway
                             Freemont, CA. 94538

            With a copy to:  Legal Department
                             At Road, Inc.
                             47200 Bayside Parkway
                             Fremont, CA 94538

            If either party changes its address during the term hereof, it shall
            so advise the other party in writing and any notice thereafter
            required to be given shall be sent by certified mail to such new
            address.

      20.7  Costs. Each Party will reimburse the other Party for court costs,
            attorney's fees, costs of investigation or collection and similar
            expenses incurred by the Party in the enforcement of any right or
            privilege hereunder.

      20.8  Captions. The captions in this Agreement are for convenience only
            and shall not be construed to define or limit any of the terms
            herein.

      20.9  Publicity and Advertising. Without the prior written consent of the
            other party, no party hereto will disclose to any person the terms
            and

                                       15
<PAGE>

            conditions of this Agreement, except as may be required by law and
            then only in compliance with requirements for Confidential
            Proprietary Information found in this Agreement. Customer shall
            submit to ALLTEL all advertising, sales promotion, press releases
            and other publicity matters relating to the Service furnished by
            ALLTEL under this Agreement wherein ALLTEL's name or marks is
            mentioned or language from which the connection of said names or
            marks therewith may be inferred or implied. Customer shall not
            publish or use such advertising, sales promotion, press releases, or
            publicity matters without ALLTEL's prior written approval.

      20.10 Assignment. Any assignment of this Agreement, in whole or in part,
            or any other interest hereunder without the other party's prior
            written consent shall be void, except that this Agreement is fully
            assignable without consent from the other party upon the occurrence
            of a merger or change of control of either party.

      20.11 Authorized Signatures. ALLTEL and Customer each represent that the
            individual signing this Agreement on its behalf has the power and
            authority to enter into this Agreement and that this Agreement
            constitutes a valid and binding obligation of each party.

      20.12 Compliance with Laws. Both parties shall comply with all applicable
            local, state, and federal regulations, laws, ordinances, rules, and
            decisions.

      20.13 Acts of God. In no event shall either party have any liability for
            any failure to comply with this Agreement, accept for any
            obligations to make payments, if such failure results from the
            occurrence of any contingency beyond the reasonable control of the
            parties, including without limitation the Service provider serving a
            particular area or Area, strike or other labor disturbance, riot,
            theft, flood, fire, lightning, storm, any act of God, power failure,
            war, national emergency, interference by any government or
            governmental agency, embargo, seizure, or enactment of any law,
            statute, ordinance, rule or regulation.

                                       16
<PAGE>

      IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
by their duly authorized representatives.

ALLTEL COMMUNICATIONS INC.              At ROAD, INC.
1 ALLIED DRIVE                          47200 BAYSIDE PARKWAY
LITTLE ROCK, ARKANSAS 72202             FREEMONT, CA. 94538
DOING BUSINESS AS ALLTEL

By:     /s/ PATRICK HARTER               By:      /s/ KRISH PANU
   ------------------------------------     ------------------------------------

Name:   PATRICK HARTER                   Name:    Krish Panu
     ----------------------------------       ----------------------------------

Title:  VPGM-Phoenix                     Title:   President
      ---------------------------------        ---------------------------------

Date:   May 17, 2001                     Date:    May 10, 2001
     ----------------------------------       ----------------------------------

<PAGE>

                                    EXHIBIT A

This Exhibit A sets forth the Area(s), as that term is used in this Agreement,
in which ALLTEL is authorized to provide CRS, and ALLTEL Wireless Cellular
Digital Packet Data network, as described in this Agreement. In this Exhibit
there is described the individual counties of the MSA's and/or RSA's in which
ALLTEL is authorized to conduct its CRS and wireless data operations

1.    (a) COUNTIES OF THE MSA(s) IN WHICH ALLTEL IS LICENSED:

               ARIZONA COUNTIES:

               Maricopa County in PHOENIX MSA
               Pima County in TUCSON MSA

               NEW MEXICO COUNTIES:

               Sandoval and Bernalillo in ALBUQUERQUE MSA
               Dona Ana County in LAS CRUCES MSA

               TEXAS COUNTIES:

               El Paso County in EL PASO MSA

<TABLE>
<CAPTION>
<S>                                <C>
                                   FLORIDA COUNTIES:
      Pasco                        MSA  (65%)
      Pinellas                     MSA  (95%)
      Hillsborough                 MSA  (75%)
      Lakeland                     MSA  (45%)
      Manatee                      MSA  (30%)
      Sarasota                     MSA  (20%)

                                   OHIO COUNTIES:
      Lorain County                     (40%)
      Cuyahoga County
      Geauga County                     (35%)
      Lake County                       (55%)
      Medina County                     (85%)
      Portage County                    (25%)
      Stark County                      (40%)
</TABLE>

      (b) COUNTIES OF THE RSA(s) IN WHICH ALLTEL IS LICENSED:

      ARIZONA COUNTIES

      Coconino & Yavapai in AZ 2-COCONINO RSA

               Gila and Pinal in AZ 5-GILA RSA

               Florida Counties

<TABLE>
<CAPTION>
<S>                                <C>  <C>
      Charlotte                    RSA  (20%)
      Hardee                       RSA  (15%)
</TABLE>

                                       18
<PAGE>

                                    EXHIBIT B

                                 PRICE SCHEDULE*

<TABLE>
<CAPTION>
PRICE               INCLUDED DATA VOLUME                OUT OF MARKET - ROAMING
-----               --------------------                -----------------------
<S>                 <C>                                 <C>
[*]                 [*] Kilobyte Allowance              [*] per KB
                    Each Kb is [*]
</TABLE>

Activation Fee of [*] each IP

Included features: Internet routed I.P. All Alltel CDPD markets as listed in
Exhibit "A"

*The availability of this pricing is contingent upon Customer activating a
[*] IP's on ALLTEL's network within the first 90 days of the Agreement
and a minimum of [*] IP's by the end of the first year of the Agreement. If
Customer fails to do so, Customer shall be obligated to pay ALLTEL The Standard
Contract rate of [*] per month with Kilobyte allowance of [*].

[*] Confidential material redacted and filed separately
    with the SEC.

<PAGE>

                                    EXHIBIT C
                ALLTEL WIRELESS DATA PACKET SERVICE REQUEST FORM

PLEASE FAX REQUESTS TO                       AT
                       -------------------     -----------------------
Contract Number                              Date
               ---------------------------        --------------------
Customer Number                              Quantity
               ---------------------------           -----------------

<TABLE>
<CAPTION>
<S>   <C>                       <C>                      <C>
MDIS            EID's                      NEI's         Activation/Deactivation Date
____  1.______________________  1.______________________  1.____________________
      2.______________________  2.______________________  2.____________________
      3.______________________  3.______________________  3.____________________
      4.______________________  4.______________________  4.____________________
      5.______________________  5.______________________  5.____________________

MDIS            EID's                      NEI's         Activation/Deactivation Date
____  1.______________________  1.______________________  1.____________________
      2.______________________  2.______________________  2.____________________
      3.______________________  3.______________________  3.____________________
      4.______________________  4.______________________  4.____________________
      5.______________________  5.______________________  5.____________________

MDIS            EID's                      NEI's         Activation/Deactivation Date
____  1.______________________  1.______________________  1.____________________
      2.______________________  2.______________________  2.____________________
      3.______________________  3.______________________  3.____________________
      4.______________________  4.______________________  4.____________________
      5.______________________  5.______________________  5.____________________

MDIS            EID's                      NEI's         Activation/Deactivation Date
____  1.______________________  1.______________________  1.____________________
      2.______________________  2.______________________  2.____________________
      3.______________________  3.______________________  3.____________________
      4.______________________  4.______________________  4.____________________
      5.______________________  5.______________________  5.____________________
</TABLE>

Authorized Signer:
                  ---------------------------------
                        Print Name and Title

Signature:
          -----------------------------------------

                                       20

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