Exhibit 10.2

Series A Convertible Preferred

Stock Purchase Agreement

___________________


By and among

Inphonic.com, Inc.

and

John M. Lapides




Dated as of January 7, 2000.



                         SERIES A CONVERTIBLE PREFERRED
                            STOCK PURCHASE AGREEMENT

               This Series A Convertible Preferred Stock Purchase Agreement
(together with the schedules and exhibits hereto, the "Agreement") dated as of
January 7, 2000, is entered into by and among InPhonic.com, Inc., a Delaware
corporation (the "Company"), and John M. LaPides the "Series A Investor" or the
"Investor").

               In consideration of the premises, mutual promises and covenants
contained in this Agreement, and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

         1.    Authorization and Sale of Series A Preferred

               1.1 Authorization. The Company has, or before the Closing (as
         defined in Section 2) will have, duly authorized the sale and issuance
         of up to 657,161 shares of its Series A Convertible Preferred Stock,
         $0.01 par value per share (the "Series A Preferred"), having the
         rights, restrictions, privileges and preferences set forth in the
         Company's Amended and Restated Certificate of Incorporation attached
         hereto as Exhibit A (the "Restated Certificate of Incorporation").

               1.2 Sale of Shares. Subject to the terms and conditions of this
         Agreement, at the Closing (as defined in Section 2), the Company will
         sell and issue to the Series A Investor, and the Series A Investor will
         purchase, 657,161 shares of Series A Preferred for the purchase price
         of $0.76084855991811 per share.

               1.3 Use of Proceeds. The Company will use the proceeds from the
         sale of the Series A Preferred for working capital.

         2.    The Closing.

               The closing (the "Closing") of the sale and purchase of 657,161
         shares of the Series A Preferred under this Agreement shall take place
         at the offices of Piper Marbury Rudnick & Wolfe LLP, 1200 Nineteenth
         Street, N.W., Washington, D.C. 20036, at 1:00 p.m. on January 7, 2000,
         or at such other time, date and place as are mutually agreeable to the
         Company and counsel to the Investor. At the Closing, the Company will
         deliver to the Series A Investor a certificate for 657,161 shares of
         Series A Preferred, registered in the name of John M. LaPides, against
         payment to the Company of the purchase price therefor, by wire
         transfer, check, or other method acceptable to the Company. The date of
         the Closing is hereinafter referred to as the "Closing Date." If at the
         Closing any of the conditions specified in Section 5 shall not have
         been fulfilled, the Series A Investor shall,

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         at its election, be relieved of all of its obligations under this
         Agreement without thereby waiving any other rights it may have by
         reason of such failure or such non-fulfillment.

         3. Representations of the Company. Except as set forth on the
disclosure schedules attached hereto, as of the Closing Date, the Company hereby
represents and warrants to the Series A Investor as follows:

            3.1 Organization and Standing. The Company is a corporation duly
         organized, validly existing and in good standing under the laws of the
         State of Delaware and has all requisite corporate power and authority
         to own and lease its properties, to conduct its business as presently
         conducted and as proposed to be conducted by it and to enter into and
         perform this Agreement and the Ancillary Agreements (as defined below)
         and to carry out the transactions contemplated by this Agreement and
         the Ancillary Agreements. The Company is duly qualified to do business
         as a foreign corporation and is in good standing in every jurisdiction
         in which the failure to so qualify would have a material adverse effect
         on the operations or financial condition of the Company. The Company
         has furnished to the Series A Investor true and complete copies of its
         Bylaws and Restated Certificate of Incorporation, each as amended to
         date and presently in effect.

            3.2 Primary Business of the Company. The Company is engaged
         primarily in the business of the sale of wireless communications
         products and services.

            3.3 Capitalization. The authorized capital stock of the Company
         (immediately prior to the Closing) will consist of 23,000,000 shares of
         capital stock, consisting of: (i) 20,000,000 shares of common stock,
         par value $0.01 per share (the "Common Stock"), and (ii) 3,000,000
         shares of preferred stock, par value $0.01 per share (the "Preferred
         Stock"), of which 657,161 shares have been designated as Series A
         Convertible Preferred Stock, par value $0.01 per share (the "Series A
         Preferred"). Of the 20,000,000 authorized shares of Common Stock,
         9,191,018 shares are issued and outstanding, 1,969,402 shares are
         reserved for issuance upon exercise of options, and 657,161 shares are
         reserved for issuance upon the conversion of the Series A Preferred.
         All of the issued and outstanding shares of Common Stock have been duly
         authorized and validly issued and are fully paid and nonassessable.
         Except as provided in this Agreement or as set forth on Schedule 3.3,
         (i) no subscription, warrant, option, convertible security or other
         right (contingent or otherwise) to purchase or acquire any shares of
         capital stock of the Company is authorized or outstanding, (ii) there
         is not any commitment of the Company to issue any subscription,
         warrant, option, convertible security or other such right or to issue
         or distribute to holders of any shares of its capital stock any
         evidences of indebtedness or assets of the Company, and (iii) the
         Company has no obligation (contingent or otherwise) to purchase, redeem
         or otherwise acquire any shares of its capital stock or any interest
         therein or to pay any dividend or make any other distribution in
         respect thereof. Except as provided in this Agreement, no person or
         entity is entitled to (i) any preemptive or similar right with respect
         to the issuance of any capital stock of the Company or (ii) any rights
         with respect to the registration of any capital stock of the Company
         under the Securities Act of 1933, as amended (together with all rules

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         promulgated thereunder, the "Securities Act"). All of the issued and
         outstanding shares of Common Stock have been offered, issued and sold
         by the Company in compliance with applicable Federal and state
         securities laws. To the Company's knowledge, no stockholder of the
         Company has granted options or other rights to purchase any shares of
         Common Stock from such stockholder.

                  3.4 Subsidiaries. Except as set forth on Schedule 3.4, the
         Company has no subsidiaries and does not own or control, directly or
         indirectly, shares of capital stock of any other corporation, or any
         interest in any partnership, joint venture or other non-corporate
         business entity or enterprise.

                  3.5 Stockholder List and Agreements. Attached as Schedule 3.5
         is a true and complete list of the stockholders of the Company, showing
         the number of shares of Common Stock or other securities of the Company
         held by each stockholder as of the date of this Agreement and the
         consideration paid to the Company, if any, for such shares. Except as
         set forth on Schedule 3.5 and as contemplated by this Agreement, there
         are no agreements, written or oral, between the Company and any holder
         of its capital stock, or among any holders of its capital stock,
         relating to the acquisition (including, without limitation, rights of
         first refusal or preemptive rights), disposition or voting of the
         capital stock of the Company.

                  3.6 Issuance of Shares. The issuance, sale and delivery of the
         Series A Preferred in accordance with this Agreement, and the issuance
         and delivery of the shares of Common Stock issuable upon conversion of
         the Series A Preferred (the "Conversion Shares") have been, or will be
         on or prior to the Closing, duly authorized and, in the latter case,
         reserved for issuance, by all necessary corporate action on the part of
         the Company. The Series A Preferred, when so issued, sold and delivered
         against payment therefor in accordance with the provisions of this
         Agreement, and the Conversion Shares, when issued upon conversion of
         the Series A Preferred, will be duly and validly issued, fully paid and
         non-assessable.

                  3.7 Authority for Agreement. The execution, delivery and
         performance by the Company of this Agreement and all other agreements
         required to be executed by the Company on or prior to the Closing
         pursuant to Section 5 (the "Ancillary Agreements"), and the
         consummation by the Company of the transactions contemplated hereby and
         thereby, have been duly authorized by all necessary corporate action.
         This Agreement and the Ancillary Agreements have been duly executed and
         delivered by the Company and constitute valid and binding obligations
         of the Company enforceable in accordance with their respective terms.
         Except as set forth on Schedule 3.7, the execution and performance of
         the transactions contemplated by this Agreement and the Ancillary
         Agreements and compliance with their provisions by the Company: (i)
         will not violate any provision of law applicable to the Company; and
         (ii) will not conflict with or result in any breach of any of the
         terms, conditions or provisions of, or constitute a default under, its
         Restated Certificate of Incorporation or Bylaws (each as amended to
         date and presently in effect), or any indenture, lease, agreement or
         other instrument to which the Company is

                                       -4-



         a party or by which it or any of its properties is bound, or any
         decree, judgment, order, statute, rule or regulation applicable to the
         Company.

                  3.8 Governmental Consents. No consent, approval, order or
         authorization of, or registration, qualification, designation,
         declaration or filing with, any governmental authority is required on
         the part of the Company in connection with the execution and delivery
         of this Agreement, the offer, issue, sale and delivery of the Series A
         Preferred, the issue and delivery of the Conversion Shares or the other
         transactions to be consummated at the Closing, as contemplated by this
         Agreement and the Ancillary Agreements, except (i) such filings as
         shall have been made prior to and shall be effective on and as of the
         Closing and (ii) if required, qualifications or filings under the
         Securities Act and other applicable state securities laws which
         qualifications or filings, if required, will be obtained or made and
         will be effective within the time periods required by law. Assuming the
         accuracy of the representations and warranties made by the Series A
         Investor in Section 4 of this Agreement, the offer and sale of the
         Series A Preferred to each of the Investors will be in compliance with
         applicable Federal and state securities laws.

                  3.9 Litigation. Except as set forth on Schedule 3.9, there is
         no action, suit, proceeding or investigation pending or to the
         Company's knowledge currently threatened against the Company that
         questions the validity of this Agreement, or the Ancillary Agreements
         or the right of the Company to enter into any of such agreements, or to
         consummate the transactions contemplated hereby or thereby, or which
         might result, either individually or in the aggregate, in any material
         adverse change in the assets, condition, affairs or prospects of the
         Company, financially or otherwise, or any change in the current equity
         ownership of the Company, nor is the Company aware that there is any
         basis for any of the foregoing. The foregoing includes, without
         limitation, actions pending or threatened against the Company (or any
         basis therefor known to the Company) involving the prior employment of
         any of the Company's employees, their use in connection with the
         Company's business of any information or techniques allegedly
         proprietary to any of their former employers, or their obligations
         under any agreements with prior employers. The Company is not a party
         or subject to the provisions of any order, writ, injunction, judgment
         or decree of any court or government agency or instrumentality. There
         is no action, suit, proceeding or investigation by the Company
         currently pending or which the Company intends to initiate.

                  3.10 Absence of Liabilities. Except as set forth on Schedule
         3.10, the Company has no liabilities, contingent or otherwise, other
         than (i) liabilities incurred in the ordinary course of business that
         individually or in the aggregate are not material to the financial
         condition or operating results of the Company, and (ii) obligations not
         required under generally accepted accounting principles to be reflected
         in its financial statements.

                  3.11 Taxes. Except as set forth on Schedule 3.11, the Company
         owes no taxes (including payroll taxes) as of the date of the most
         recent balance sheet provided to the Series A Investor. The Company has
         timely filed or has obtained presently effective

                                       -5-



         extensions with respect to all Federal, state, county, local and
         foreign tax returns which are required to be filed by it, such returns
         are true and correct and all taxes shown thereon to be due have been
         timely paid, with any exceptions permitted by any taxing authority not
         having a materially adverse effect on the Company. Federal income tax
         returns of the Company have not been audited by the Internal Revenue
         Service, and no controversy with respect to taxes of any type is
         pending or, to the knowledge of the Company, threatened.

                  3.12 Property and Assets. The Company has good and marketable
         title to all of its material properties and assets, except those
         disposed of in the ordinary course of business. The Company is in
         compliance with all material terms of each lease to which it is a party
         or is otherwise bound.

                  3.13 Intellectual Property. Set forth on Schedule 3.13 is a
         true and complete list of all patents, patent applications, trademarks,
         service marks, trademark and service mark applications, trade names,
         copyrights and licenses presently owned or held by the Company or
         necessary for the conduct of the Company's business as conducted and as
         currently proposed to be conducted, as well as any agreement under
         which the Company has access to any confidential information used by
         the Company in its business (the "Intellectual Property Rights"). The
         Company owns, or has the right to use, free and clear of all liens,
         charges, claims and restrictions, under the agreements and upon the
         terms described in Schedule 3.13, all of the Intellectual Property
         Rights. There are no outstanding options, licenses or agreements of any
         kind relating to the foregoing, nor is the Company bound by or a party
         to any options, licenses or agreements of any kind with respect to the
         patents, trademarks, service marks, trade names, copyrights, trade
         secrets, licenses, information and other proprietary rights and
         processes of any other person or entity other than such licenses or
         agreements arising from the purchase of "off the shelf" or standard
         products. Except as set forth on Schedule 3.13, the Company has not
         received any communications alleging that the Company has violated or,
         by conducting its business as currently proposed, would violate any of
         the patents, trademarks, service marks, trade names, copyrights,
         licenses, trade secrets or other proprietary rights of any other person
         or entity ("Third-Party Intellectual Property Rights"), and to the best
         of the Company's knowledge, the business proposed by the Company will
         not cause the Company to infringe or violate any Third Party
         Intellectual Property Rights. The Company is not aware of any violation
         by any third party of any Intellectual Property Rights of the Company
         or of any defects therein or in the title thereto. The Company is not
         aware that any officer, employee or director is obligated under any
         contract (including any license, covenant or commitment of any nature)
         or other agreement, or subject to any judgment, decree or order of any
         court or administrative agency, that would conflict or interfere with:
         (i) the performance of such person's duties as an officer, employee or
         director of the Company; (ii) the use of such person's best efforts to
         promote the interests of the Company; or (iii) the Company's business
         as conducted or proposed to be conducted. No person or entity
         (including, without limitation, any prior employer of any employee of
         the Company) has any right to or interest in any inventions,
         improvements, discoveries or other information assigned to the Company
         by any employee pursuant to

                                       -6-



         the Nondisclosure Agreement (in the form attached hereto as Exhibit B)
         executed by such employee, or otherwise.

                  3.14 Insurance. The Company will maintain valid policies for
         workers' compensation insurance and insurance related to its properties
         and business of the kinds and in the amounts customary for the type of
         business engaged in by the Company.

                  3.15 Material Contracts and Obligations. Schedule 3.15 sets
         forth a list of all material agreements of any nature to which the
         Company is a party or by which it is bound, including without
         limitation (i) each agreement which requires future expenditures by the
         Company in excess of $50,000; (ii) all material employment and
         consulting agreements, employee benefit, bonus, pension,
         profit-sharing, stock option, stock purchase and similar plans and
         arrangements, and distributor and sales representative agreements;
         (iii) any material agreement to which any stockholder, officer or
         director of the Company, or any "affiliate" or "associate" of such
         persons (as such terms are defined in the Securities Act), including,
         without limitation, any agreement or other arrangement providing for
         the furnishing of services by, rental of real or personal property
         from, or otherwise requiring payments to, any such person or entity;
         and (iv) any agreement relating to the Intellectual Property Rights.
         The Company has delivered to the Series A Investor copies of such of
         the foregoing agreements as such Investor has requested. All of such
         agreements and contracts are valid, binding and in full force and
         effect.

                  3.16 Debts Owed by Company. Except as set forth on Schedule
         3.16, the Company does not owe any debt, including any outstanding
         interest, to any members of management, principals, founders, or key
         employees of the Company, other than that debt occurring in the
         ordinary course of business.

                  3.17 Compliance. The Company has, in all material respects,
         complied with all laws, regulations and orders applicable to its
         present and proposed business and has all material franchises, permits
         and licenses and any similar authority for the conduct of its business
         now being conducted by it. There is no term or provision of any
         material mortgage, indenture, contract, agreement or instrument to
         which the Company is a party or by which it is bound, or, to the best
         knowledge of the Company, of any state or Federal judgment, decree,
         order, statute, rule or regulation applicable to or binding upon the
         Company, that materially adversely affects or, so far as the Company
         may now foresee, in the future is reasonably likely to materially
         adversely affect, the business, prospects, condition, affairs or
         operations of the Company or any of its properties or assets. No
         employee of the Company is in violation of any contract or covenant
         (either with the Company or with another entity) relating to
         employment, patent, other proprietary information disclosure,
         non-competition, or non-solicitation.

                  3.18 Employees. None of the employees of the Company is
         represented by any labor union, and there is no labor strike or other
         labor trouble (including, without limitation, any organizational drive)
         pending or, to the knowledge of the Company,

                                       -7-



         threatened with respect to the Company. Except as set forth on Schedule
         3.18, no employee has any agreement or contract, written or verbal,
         regarding his employment. Except as set forth on Schedule 3.18, the
         Company is not a party to or bound by any currently effective
         employment contract, deferred compensation arrangement, bonus plan,
         incentive plan, profit sharing plan, retirement agreement or other
         employee compensation plan or agreement.

                  3.19 Nondisclosure Agreements. Each current employee, officer
         and consultant of the Company has executed a Nondisclosure Agreement in
         the form of Exhibit B attached hereto, and all of such agreements are
         in full force and effect.

                  3.20 Books and Records. The minute books of the Company
         contain complete and accurate records of all meetings and other
         corporate actions of its stockholders and its Board of Directors and
         committees thereof. The stock ledger of the Company is complete and
         reflects all issuances, repurchases and cancellations of shares of
         capital stock of the Company, and, to the knowledge of the Company, all
         transfers of shares of capital stock of the Company.

                  3.21 Offering Valid. Assuming the accuracy of the
         representations and warranties of the Series A Investor contained in
         Section 4 hereof, the offer, sale and issuance of the Series A
         Preferred and the Conversion Shares will be exempt from the
         registration requirements of the Securities Act of 1933, as amended
         (the "Securities Act"), and will have been registered or qualified (or
         are exempt from registration and qualification) under the registration,
         permit or qualification requirements of all applicable state securities
         laws. Neither the Company nor any agent acting on its behalf has
         solicited or will solicit any offers to sell or has offered to sell or
         will offer to sell all or any part of the Series A Preferred to any
         person or persons so as to bring the sale of such Series A Preferred by
         the Company within the registration provisions of the Securities Act or
         any state securities laws.

                  3.22 Tax Elections. The Company has not elected pursuant to
         the Internal Revenue Code of 1986, as amended (the "Code"), to be
         treated as an "S" corporation or a collapsible corporation pursuant to
         Section 341(f) or Section 1362(a) of the Code.

                  3.23 Disclosures. The Company has provided the Series A
         Investor with all information requested by the Series A Investor in
         connection with its decision to purchase the Series A Preferred,
         including all information the Company believes is reasonably necessary
         to make such investment decision. Neither this Agreement, the Exhibits
         hereto, the Ancillary Agreements nor any other document delivered by
         the Company to the Series A Investor or its attorneys or agents in
         connection herewith or therewith or with the transactions contemplated
         hereby or thereby, contain any untrue statement of a material fact nor
         omit to state a material fact necessary in order to make the statements
         contained herein or therein not misleading. Notwithstanding the
         foregoing, the Business Plan provided to the Series A Investor was
         prepared by the management of the Company in a good faith effort to
         describe the Company's presently proposed business and products and

                                       -8-



         the markets therefore. The assumptions applied in preparing the
         Business Plan appeared reasonable to management as of the date thereof
         and as of the date hereof; however, there is no assurance that these
         assumptions will prove to be valid or that the objectives set forth in
         the Business Plan will be achieved. To the Company's knowledge, there
         are no facts which (individually or in the aggregate) materially
         adversely affect the business, assets, liabilities, financial
         condition, prospects or operations of the Company that have not been
         set forth in the Agreement, the Exhibits hereto, the Ancillary
         Agreements or in other documents delivered to the Series A Investor or
         its attorneys or agents in connection herewith.

         4.       Representations of the Series A Investor. The Series A
Investor represents and warrants to the Company as follows:

                  4.1 Investment. The Series A Investor is acquiring the Series
         A Preferred and the Conversion Shares for its own account for
         investment and not with a view to, or for sale in connection with, any
         distribution thereof, nor with any present intention of distributing or
         selling the same; and, except as contemplated by this Agreement and the
         Exhibits hereto, the Series A Investor has no present or contemplated
         agreement, undertaking, arrangement, obligation, indebtedness or
         commitment providing for the disposition thereof.

                  4.2 Authority. The Series A Investor has full power and
         authority to enter into and to perform this Agreement and the Ancillary
         Agreements in accordance with their terms and to consummate the
         transactions contemplated hereby and thereby. This Agreement and the
         Ancillary Agreements have been duly executed and delivered by the
         Series A Investor and constitute valid and binding obligations of such
         Investor enforceable in accordance with their respective terms.

                  4.3 Experience. The Series A Investor has carefully reviewed
         the representations concerning the Company contained in this Agreement
         and has made detailed inquiry concerning the Company, its business and
         its personnel. The officers of the Company have made available to such
         Investor any and all written information that such Investor has
         requested and have answered to such Investor's satisfaction all
         inquiries made by such Investor. The Series A Investor has adequate net
         worth and means of providing for its current needs and contingencies to
         sustain a complete loss of its investment in the Company. The Series A
         Investor's overall commitment to investments which are not readily
         marketable is not disproportionate to its net worth and such Investor's
         investment in the Series A Preferred will not cause such overall
         commitment to become excessive.

                  4.4 Accredited Investor. The Series A Investor is an
         Accredited Investor within the definition set forth in Rule 501(a) of
         the Securities Act.

                                       -9-



         5.       Conditions to the Obligations of the Investor. The obligation
of the Series A Investor to purchase the Series A Preferred at the Closing is
subject to the fulfillment, or the waiver by such Investor, of the following
conditions on or before the Closing Date:

                  5.1 Accuracy of Representations and Warranties. Each
         representation and warranty contained in Section 3 shall be true and
         complete on and as of the Closing Date with the same effect as though
         such representation and warranty had been made on and as of that date.

                  5.2 Performance. The Company shall have performed and complied
         with all agreements and conditions contained in this Agreement required
         to be performed or complied with by the Company prior to or at the
         Closing.

                  5.3 Filing of Restated Certificate of Incorporation. The
         Restated Certificate of Incorporation shall have been filed with the
         Secretary of State of the State of Delaware and shall continue to be in
         full force and effect as of the Closing Date.

                  5.4 Corporate Documents. The Company shall have delivered to
         the Series A Investor or its counsel, copies of all corporate documents
         of the Company as such Investor shall have reasonably requested.

                  5.5 Reservation of Conversion Shares. The Conversion Shares
         issuable upon conversion of the Series A Preferred shall have been duly
         authorized and reserved for issuance upon such conversion.

                  5.6 Blue Sky Approvals. The Company shall have taken all
         actions necessary to obtain an exemption from the state securities laws
         of the State of Maryland on or before the Closing Date, or at such time
         thereafter as may be required by the applicable statute.

                  5.7 Certificates and Documents. The Company shall have
         delivered to the Series A Investor:

                      (a) The Restated Certificate of Incorporation of the
         Company, as in effect prior to the Closing, certified by the Secretary
         of State of the State of Delaware;

                      (b) Bylaws of the Company certified by its Secretary or
         Assistant Secretary as being in effect as of the Closing Date; and

                      (c) Resolutions of the Board of Directors of the Company,
         authorizing and approving all matters in connection with this Agreement
         and the transactions contemplated hereby, certified by the Secretary or
         Assistant Secretary of the Company as of the Closing Date.

                                      -10-



                  5.8 Due Diligence. The Series A Investor shall have completed,
         to its satisfaction, its due diligence review of the Company.

                  5.9 Other Matters. All corporate and other proceedings in
         connection with the transactions contemplated by this Agreement and all
         documents and instruments incident to such transactions shall be
         reasonably satisfactory in substance and form to the Series A Investor
         and to its counsel, and the Series A Investor and its counsel shall
         have received all such counterpart originals or certified or other
         copies of such documents as they may reasonably request.

         6.       Conditions to the Obligations of the Company. The obligations
of the Company under Section 1.2 of this Agreement are subject to the
fulfillment, on or before the Closing Date, of each of the following conditions:

                  6.1 Accuracy of Representations and Warranties. Each
         representation and warranty contained in Section 4 shall be true and
         complete on and as of the Closing Date with the same effect as though
         such representation and warranty had been made on and as of that date.

                  6.2 Purchase Price. The Series A Investor shall have delivered
         the aggregate purchase price of $500,000 to the Company in accordance
         with Section 2 hereof.

                  6.3 Blue Sky Approvals. The Company shall have obtained all
         necessary Blue Sky Law permits and qualifications, or secured an
         exemption therefrom, required by any state for the offer and sale of
         the Series A Preferred and the Conversion Shares.

         7.       Execution of Ancillary Agreements.

                  7.1 Investor Rights Agreement. The Company shall execute and
         deliver an Investor Rights Agreement to the Series A Investor and
         certain other parties thereto within thirty (30) days of the Closing
         Date of this transaction. Such Agreement shall provide, at a minimum,
         incidental or "piggyback" registration rights to the Series A Investor.

                  7.2 Right of First Refusal and Co-Sale Agreement. The Company
         shall execute and deliver a Right of First Refusal and Co-Sale
         Agreement to the Series A Investor and certain other parties thereto
         within thirty (30) days of the Closing Date of this transaction. The
         Series A Investor shall provide a right of first refusal with respect
         to the Series A Preferred purchased hereunder to certain parties
         pursuant to such Agreement.

         8.       Restrictions on Transfer.

                  8.1 The Series A Investor agrees not to make any disposition
         of all or any portion of the Series A Preferred unless and until:

                                      -11-



                      (a) There is then in effect a registration statement under
         the Securities Act covering such proposed disposition and such
         disposition is made in accordance with such registration statement; or

                      (b) the Series A Investor shall have furnished the Company
         with an opinion of counsel, reasonably satisfactory to the Company,
         that such disposition will not require registration of such shares
         under the Securities Act of 1933, as amended (the "Securities Act"). It
         is agreed that the Company will not require opinions of counsel for
         transactions made pursuant to Rule 144 except in unusual circumstances.

                  8.2 Notwithstanding the provisions of Section 8.1, no such
         registration statement or opinion of counsel shall be necessary for a
         transfer by the Series A Investor to (i) any member of the family of
         the Series A Investor; (ii) a trust for the benefit of any such family
         member; or (iii) a partnership whose sole partners are the Series A
         Investor and/or any member of the family of the Series A Investor;
         provided that in each case the transferee will be subject to the terms
         of this Agreement and to the ancillary agreements described in Section
         7 to the same extent as if he were the Series A Investor.

                  8.3 Each certificate representing the Series A Preferred shall
         (unless otherwise permitted by the provisions of the Agreement) be
         stamped or otherwise imprinted with a legend substantially similar to
         the following (in addition to any legend required under applicable
         state securities laws):

                  THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
                  UNDER THE SECURITIES ACT OF 1933 (THE "ACT") AND MAY NOT BE
                  OFFERED, SOLD OR OTHERWISE TRANSFERRED, ASSIGNED, PLEDGED OR
                  HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR
                  UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL
                  SATISFACTORY TO THE COMPANY AND ITS COUNSEL THAT SUCH
                  REGISTRATION IS NOT REQUIRED.

                  8.4 The Company shall be obligated to reissue promptly
         unlegended certificates at the request of any holder thereof if the
         holder shall have obtained an opinion of counsel (which counsel may be
         counsel to the Company) reasonably acceptable to the Company to the
         effect that the securities proposed to be disposed of may lawfully be
         so disposed of without registration, qualification or legend.

                  8.5 Any legend endorsed on an instrument pursuant to
         applicable state securities laws and the stop-transfer instructions
         with respect to such securities shall be removed upon receipt by the
         Company of an order of the appropriate blue sky authority authorizing
         such removal.

         9.       Successors and Assigns. The provisions of this Agreement shall
be binding upon, and inure to the benefit of, the respective successors,
assigns, heirs, executors and administrators of the parties hereto.

                                       -12-



         10. Confidentiality. The Series A Investor agrees that it will keep
confidential and will not use, disclose or divulge, for any purpose other than
to monitor such Investor's investment in the Company, any confidential,
proprietary or secret information which such Investor may obtain from the
Company pursuant to financial statements, reports and other materials submitted
by the Company to such Investor pursuant to this Agreement, or pursuant to
visitation or inspection rights granted hereunder ("Confidential Information"),
unless such Confidential Information is known, or until such Confidential
Information becomes known, to the public other than as a result of a disclosure
by such Investor; provided, however, that the Series A Investor may disclose
Confidential Information (i) to its attorneys, accountants, consultants and
other professionals to the extent necessary to obtain their services in
connection with its investment in the Company, or (ii) to any affiliate of such
Investor or to a partner, shareholder or subsidiary of such Investor.

         11. Survival of Representations and Warranties. The representations,
warranties and agreements made herein shall survive the closing of the
transactions contemplated hereby until the effective date of any registration
statement covering a public offering of securities of the Company under the
Securities Act of 1933, as amended. All statements as to factual matters
contained in any certificate or other instrument delivered by or on behalf of
the Company pursuant hereto in connection with the transactions contemplated
hereby shall be deemed to be representations and warranties by the Company
hereunder solely as of the date of such certificate or instrument.

         12. Expenses. The Company shall pay all reasonable and customary
closing costs, attorney's fees and recording fees related to this transaction.

         13. Notices. All notices, requests, consents, and other communications
under this Agreement shall be in writing and shall be delivered by hand or
mailed by first class certified or registered mail, return receipt requested,
postage prepaid:

             If to the Company:

                             InPhonic.com, Inc.
                             1101 30/th/ Street, N.W.
                             Suite 500
                             Washington, DC 20007
                             FAX:
                             Attention: Chief Executive Officer

or at such other address or addresses as may have been furnished in writing by
the Company to the Series A Investor,

             with a copy to:

                             Ned Martin, Esq.
                             Piper Marbury Rudnick & Wolfe LLP
                             1200 19/th/ Street, N.W.

                                      -13-



                                     Washington, D.C. 20036
                                     FAX:

                  If to the Series A Investor, at the address for the Series A
Investor set forth on the counterpart signature page hereto, or at such other
address or addresses as may have been furnished in writing to the Company by
such Investor.

                  Notices provided in accordance with this Section 13 shall be
deemed delivered upon personal delivery or three business days after deposit in
the mail.

            14.   Brokers. The Company is not subject to an existing agreement
with any finder and no fees will be paid by the Company to any such finder in
regard to the transaction contemplated by this Agreement. The Series A Investor
is not responsible for the payment of any finder's fees in connection with the
transaction contemplated herein. The Company will indemnify and save the other
parties harmless from and against any and all claims, liabilities or obligations
with respect to brokerage or finders' fees or commissions, or consulting fees in
connection with the transactions contemplated by this Agreement asserted by any
person on the basis of any statement or representation alleged to have been made
by such indemnifying party.

            15.   Entire Agreement. This Agreement embodies the entire agreement
and understanding between the parties hereto with respect to the subject matter
hereof and supersedes all prior agreements and understandings relating to such
subject matter.

            16.   Amendments and Waivers. Except as otherwise expressly set
forth in this Agreement, any term of this Agreement may be amended and the
observance of any term of this Agreement may be waived (either generally or in a
particular instance and either retroactively or prospectively), with the written
consent of the Company and the Series A Investor. Any amendment or waiver
effected in accordance with this Section 16 shall be binding upon each holder of
any shares of the Series A Preferred or the Conversion Shares, and each future
holder of all such securities and the Company. No waivers of or exceptions to
any term, condition or provision of this Agreement, in any one or more
instances, shall be deemed to be, or construed as, a further or continuing
waiver of any such term, condition or provision.

            17.   Counterparts. This Agreement may be executed in several
counterparts, each of which shall be deemed an original, but all of which, when
taken together, shall constitute one and the same instrument.

            18.   Headings. The headings of the sections, subsections, and
paragraphs of this Agreement have been added for convenience only and shall not
be deemed to be a part of this Agreement.

            19.   Severability. The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision.

                                      -14-



         20. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware, without regard to the choice
of law or conflicts of law provisions thereof.

             IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of
the day and year first above written.

                                            INPHONIC. COM, INC.


                                            By: /s/ David Steinberg
                                                ________________________
                                            Name: David Steinberg
                                            Title:  President and CEO

                      [Counterpart Signature Page Follows]

                                      -15-



                               INPHONIC.COM, INC.


             SERIES A CONVERTIBLE PREFERRED STOCK PURCHASE AGREEMENT

                           COUNTERPART SIGNATURE PAGE


         IN WITNESS WHEREOF, the undersigned has hereunto set his hand as of the
day and year first above written.

                                        By:   /s/ John M. LaPides
                                              _________________________________
                                        Name: John M. LaPides, an individual

                                        Address:

                                              _________________________________
                                              _________________________________
                                              _________________________________

                                        Telephone No.  ________________________
                                        Telecopier No. ________________________

Counterpart Signature Page to
InPhonic.com, Inc. Series A Convertible Preferred Stock Purchase Agreement