EXHIBIT 99.4

                           AMERICAN CELLULAR CORPORATION
                               OFFER TO EXCHANGE
                                      ITS
                   9 1/2% SENIOR SUBORDINATED NOTES DUE 2009
                       FOR ANY AND ALL OF ITS OUTSTANDING
                   9 1/2% SENIOR SUBORDINATED NOTES DUE 2009

To Our Clients:

    Enclosed for your consideration are the Prospectus, dated May   , 2001 (the
"Prospectus") and the related Letter of Transmittal (which together with the
Prospectus constitute the "Exchange Offer") in connection with the offer by
American Cellular Corporation, a Delaware corporation ("American"), to exchange
its 9 1/2% Senior Subordinated Notes due 2009 (the "New Notes") for any and all
of its outstanding 9 1/2% Senior Subordinated Notes due 2009 (the "Old Notes"),
upon the terms and subject to the conditions set forth in the Exchange offer.

    We are the Registered Holder of Old Notes held for your account. An exchange
of the Old Notes can be made only by us as the Registered Holder and pursuant to
your instructions. The Letter of Transmittal is furnished to you for your
information only and cannot be used by you to exchange the Old Notes held by us
for your account. The Exchange Offer provides a procedure for holders to tender
by means of guaranteed delivery.

    We request information as to whether you wish us to exchange any or all of
the Old Notes held by us for your account upon the terms and subject to the
conditions of the Exchange Offer.

    Your attention is directed to the following:

        1. The New Notes will be exchanged for the Old Notes at the rate of
    $1,000 principal amount of New Notes for each $1,000 principal amount of Old
    Notes. The New Notes will bear interest (as do the Old Notes) at a rate
    equal to 9 1/2% per annum from their date of issuance. Interest on the New
    Notes is payable semi-annually on April 15 and October 15, commencing
    October 15, 2001. Holders of Old Notes that are accepted for exchange will
    receive, in cash, accrued interest thereon to, but not including, the date
    of issuance of the New Notes. Such interest will be paid with the first
    interest payment on the New Notes. Interest on the Old Notes accepted for
    exchange will cease to accrue on the day prior to the issuance of the New
    Notes. The form and terms of the New Notes are the same in all material
    respects as the form and terms of the Old Notes (which they replace) except
    that the New Notes have been registered under the Securities Act of 1933, as
    amended (the "Securities Act").

        2. Based on the interpretation by the staff of the Securities and
    Exchange Commission (the "SEC"), New Notes issued pursuant to the Exchange
    Offer in exchange for Old Notes may be offered for resale, resold and
    otherwise transferred by holders thereof (other than any such holder which
    is an "affiliate" of American within the meaning of Rule 405 under the
    Securities Act or a "broker" or "dealer" registered under the Securities
    Exchange Act of 1934, as amended (the "Exchange Act")) without compliance
    with the registration and prospectus delivery provisions of the Securities
    Act provided that such New Notes are acquired in the ordinary course of such
    holders' business and such holders have no arrangement with any person to
    participate in the distribution of such New Notes.

        3.  The Exchange Offer is not conditioned on any minimum number of Old
    Notes being tendered.

        4.  Notwithstanding any other term of the Exchange Offer, American will
    not be required to accept for exchange, or exchange New Notes for, any Old
    Notes not theretofore accepted for exchange, and may terminate or amend the
    Exchange Offer as provided herein before the acceptance

    of such Old Notes, if any of the conditions described in the Prospectus
    under "The Exchange Offer--Conditions of the exchange offer" exist.

        5.  Tendered Old Notes may be withdrawn at any time prior to 5:00 p.m.,
    New York City time, on June   , 2001, if such Old Notes have not previously
    been accepted for exchange pursuant to the Exchange Offer.

        6.  Any transfer taxes applicable to the exchange of the Old Notes
    pursuant to the Exchange Offer will be paid by American, except as otherwise
    provided in Instruction 4 of the Letter of Transmittal.

    If you wish to have us tender any or all of your Old Notes, please so
instruct us by completing, detaching and returning to us the instruction form
attached hereto. An envelope to return your instructions is enclosed. If you
authorize a tender of your Old Notes, the entire principal amount of Old Notes
held for your account will be tendered unless otherwise specified on the
instruction form. Your instructions should be forwarded to us in ample time to
permit us to submit a tender on your behalf by the Expiration Date.

    The Exchange Offer is not being made to, nor will tenders be accepted from
or on behalf of, holders of the Old Notes in any jurisdiction in which the
making of the Exchange Offer or acceptance thereof would not be in compliance
with the laws of such jurisdiction or would otherwise not be in compliance with
any provision of any applicable securities law.