SCHEDULE 14A INFORMATION
                Proxy Statement Pursuant to Section 14(a) of the
                         Securities Exchange Act of 1934

                               (Amendment No. ___)


Filed by the Registrant                      [X]

Filed by a Party other than the Registrant   [_]

Check the appropriate box:
[X]   Preliminary Proxy Statement
[_]   Confidential, for Use of the Commission Only
      (as permitted by Rule 14a-6(e)(2))
[_]   Definitive Proxy Statement
[_]   Definitive Additional Materials
[_]   Soliciting Materials Pursuant to Section 240.14a-12


                  ALLIANCE NATIONAL MUNICIPAL INCOME FUND, INC.
           -----------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)

           -----------------------------------------------------------
                   (Name of Person(s) Filing Proxy Statement,
                          if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):
[X]   No fee required.
[_]   Fee computed on table below per Exchange Act
      Rules 14a-6(i)(1) and 0-11.

     (1)  Title of each class of securities to which transaction applies:

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     (2)  Aggregate number of securities to which transaction applies:

--------------------------------------------------------------------------------
     (3)  Per unit  price  or other  underlying  value of  transaction  computed
          pursuant to Exchange  Act Rule 0-11 (set forth the amount on which the
          filing fee is calculated and state how it was determined):

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     (4)  Proposed maximum aggregate value of transaction:

--------------------------------------------------------------------------------
     (5)  Total fee paid:

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     [_]  Fee paid previously with preliminary materials.

     [_]  Check box if any part of the fee is offset as provided by Exchange Act
          Rule  0-11(a)(2)  and identify the filing for which the offsetting fee
          was paid  previously.  Identify  the previous  filing by  registration
          statement number, or the Form or Schedule and the date of its filing.

          (1)  Amount Previously Paid:

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

          (2)  Form, Schedule or Registration Statement No.:

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

          (3)  Filing Party:

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

          (4)  Date Filed:

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

It is  anticipated  that  definitive  materials  will be  released  to  security
holders on or around January 2, 2007.



                                     [LOGO]

                  ALLIANCE NATIONAL MUNICIPAL INCOME FUND, INC.
                          1345 Avenue of the Americas,
                            New York, New York 10105

                                                           ___________ ___, 2007

Dear Stockholders:

     The Board of Directors (the "Directors") of Alliance National Municipal
Income Fund, Inc. (the "Fund") is pleased to invite you to a Special Meeting of
Stockholders (the "Meeting") to be held on February 22, 2007. At the Meeting,
you will be asked to approve the issuance of shares of the Fund's common stock
in connection with the proposed acquisition of all of the assets and liabilities
of ACM Municipal Securities Income Fund, Inc. ("ACM Municipal Securities"),
which is another fund in the AllianceBernstein fund family.

     The Fund is listed on the New York Stock Exchange ("NYSE"). In order for
the acquisition of ACM Municipal Securities to occur, the Fund will be required
to issue shares to the stockholders of ACM Municipal Securities in exchange for
their current shares that will represent more than 20% of the Fund's currently
outstanding common stock. Under NYSE rules, the Fund must obtain your approval
to issue this amount of shares. Therefore, the Fund's Directors have scheduled
the Meeting on February 22, 2007, to seek your approval of the issuance of
approximately 11 million shares of the Fund's common stock and allow the Fund to
proceed with the acquisition. The proposal is described in more detail in the
attached Proxy Statement.

     The Directors have concluded that the proposal is in the best interests of
the Fund and its stockholders. The Directors unanimously recommend that you vote
"For" the proposal.

     We welcome your attendance at the Meeting. If you are unable to attend, we
encourage you to vote promptly by proxy. The Altman Group, Inc. (the "Proxy
Solicitor"), a proxy solicitation firm, has been selected to assist in the proxy
solicitation process. If we have not received your proxy as the date of the
Meeting approaches, you may receive a telephone call from the Proxy Solicitor to
remind you to vote by proxy. No matter how many shares you own, your vote is
important.

Sincerely,


Marc O. Mayer
President
[__________], 2007


                                 PROXY STATEMENT

                  ALLIANCE NATIONAL MUNICIPAL INCOME FUND, INC.

                              QUESTIONS AND ANSWERS

Q.   WHAT IS THIS DOCUMENT AND WHY DID WE SEND IT TO YOU?

A.   This booklet contains the Notice of Special Meeting of Stockholders (the
     "Notice") of Alliance National Municipal Income Fund, Inc. (the "Fund") and
     Proxy Statement that provide you with information you should review before
     voting on the proposal to authorize the issuance of shares of the Fund's
     common stock (the "Proposal") that will be presented at a Special Meeting
     of Stockholders (the "Meeting"). The shares will be issued in connection
     with the Fund's acquisition of all of the assets and liabilities of ACM
     Municipal Securities Income Fund, Inc. (the "Acquisition"). You are
     receiving this proxy material because you own shares of the Fund, either
     directly or through an intermediary (we refer to them as "shares" and to
     the holders of shares as "stockholders"). As a stockholder, you have the
     right to vote on the Proposal because it concerns your investment in the
     Fund.

Q.   WHO IS ASKING FOR MY VOTE?

A.   The Board of Directors (the "Board") is asking you to vote on the Proposal.

Q.   HOW DOES THE BOARD RECOMMEND YOU VOTE?

A.   The Board recommends that you vote FOR the Proposal.

Q.   WHO IS ELIGIBLE TO VOTE?

A.   Stockholders of record at the close of business on Friday, December 15,
     2006 (the "Record Date") are entitled to vote at the Meeting or any
     adjournment or postponement of the Meeting. If you owned shares on the
     Record Date, you have the right to vote even if you later sold the shares.

Q.   WHY IS THE BOARD REQUESTING MY VOTE?

A.   Maryland law does not require a vote of the Fund's stockholders to approve
     the Acquisition. However, the Fund's common stock is listed on the New York
     Stock Exchange (the "NYSE") and the new shares that would be issued in
     connection with the Acquisition would be listed on the NYSE. As a condition
     to listing, the NYSE requires a listed company to obtain stockholder
     approval prior to the issuance of common stock if a transaction would
     result in an increase of 20% or more of the amount of the Fund's
     outstanding shares. Consequently, the Board is seeking your vote on the
     Proposal because the Fund would be required to increase the number of its
     outstanding shares by more than 20% in connection with the Acquisition.

Q.   HOW CAN I VOTE MY SHARES?

A.   Please follow the instructions included on the enclosed proxy card.

Q.   WHAT IF I WANT TO REVOKE MY PROXY?

A.   You can revoke your proxy at any time prior to its exercise by (i) giving
     written notice to the Secretary of the Fund at 1345 Avenue of the Americas,
     New York, New York 10105, (ii) by authorizing a later-dated proxy (either
     by signing and mailing another proxy card, or by telephone as indicated on
     the proxy card) or (iii) by personally voting at the Meeting.

Q.   WHOM DO I CALL IF I HAVE QUESTIONS REGARDING THE PROXY?

A.   You may call the Proxy Solicitor at [1-800-331-5817].


[LOGO]

                  ALLIANCE NATIONAL MUNICIPAL INCOME FUND, INC.
                          1345 Avenue of the Americas,
                            New York, New York 10105
                            Toll Free (800) 221-5672

                    NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                         SCHEDULED FOR FEBRUARY 22, 2007

To the Stockholders of Alliance National Municipal Income Fund, Inc. (the
"Fund"):

     Notice is hereby given that a Special Meeting of Stockholders (the
"Meeting") of the Fund, a Maryland corporation, will be held at 1345 Avenue of
the Americas, 41st Floor, New York, New York 10105 on Thursday, February 22,
2007, at 11:00 a.m. Eastern Time, to consider and vote on the following
Proposal, which is more fully described in the accompanying Proxy Statement
dated [___________], 2006:

     1.   To approve the issuance of shares of the Fund's common stock in
          connection with the proposed acquisition of assets and assumption of
          liabilities of ACM Municipal Securities Income Fund, Inc. by the Fund.

     2.   To transact such other business as may properly come before the
          Meeting.

Any stockholder of record at the close of business on December 15, 2006 (the
"Record Date") is entitled to notice of, and to vote at, the Meeting and any
adjournments or postponements thereof. Proxies are being solicited on behalf of
the Board of Directors. Each stockholder who does not expect to attend in person
is requested to complete, date, sign and promptly return the enclosed proxy
card, or to submit voting instructions by telephone as described on the enclosed
proxy card.

The Board of Directors recommends a vote "FOR" the Proposal.

                                        By Order of the Board of Directors,


                                        Marc O. Mayer
                                        President

New York, New York
[________], 2007



                             YOUR VOTE IS IMPORTANT

Please indicate your voting instructions on the enclosed proxy card, sign and
date it, and return it in the envelope provided, which needs no postage if
mailed in the United States. You may by telephone authorize a proxy to cast your
votes. To do so, please follow the instructions on the enclosed proxy card. Your
vote is very important no matter how many shares you own. In order to save any
additional costs of further proxy solicitation and to allow the Meeting to be
held as scheduled, please complete, date, sign and return your proxy card
promptly.

----------
AllianceBernstein(R) and the AB Logo are registered trademarks and service marks
used by permission of the owner, AllianceBernstein L.P.


                                 PROXY STATEMENT

                  ALLIANCE NATIONAL MUNICIPAL INCOME FUND, INC.

                           1345 Avenue of the Americas
                            New York, New York 10105

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

                         SPECIAL MEETING OF STOCKHOLDERS

                                FEBRUARY 22, 2007

                                  INTRODUCTION

     This is a Proxy Statement for Alliance National Municipal Income Fund, Inc.
(the "Fund"). The Board of Directors of the Fund is soliciting proxies for a
Special Meeting of Stockholders (the "Meeting") of the Fund to consider and vote
on a proposal to issue shares of the Fund's common stock in connection with the
proposed acquisition (the "Acquisition") of all of the assets and assumption of
all the liabilities of ACM Municipal Securities Income Fund, Inc. ("ACM
Municipal Securities") by the Fund (the "Proposal").

     The Board is sending you this Proxy Statement to ask for your vote on the
Proposal. The Meeting will be held at 1345 Avenue of the Americas, 41st Floor,
New York, New York 10105 on February 22, 2007, at 11:00 a.m., Eastern Time. The
solicitation will be made primarily by mail and may also be made by telephone.
The solicitation cost will be borne by the Fund. The Notice of Special Meeting,
Proxy Statement and proxy card are being mailed to stockholders on or about
[____________], 2007.

     Any stockholder  who owned shares of the Fund on Friday,  December 15, 2006
(the  "Record  Date") is  entitled to notice of, and to vote at, the Meeting and
any postponement or adjournment thereof. Each share is entitled to one vote.


                                  THE PROPOSAL:
                       ISSUANCE OF THE FUND'S COMMON STOCK
                      IN CONNECTION WITH THE ACQUISITION OF
                            ACM MUNICIPAL SECURITIES

Background

     At their Special Meeting held on November 20, 2006 (the "Meeting"), the
Board of Directors of the Fund approved the Fund's acquisition of ACM Municipal
Securities. ACM Municipal Securities has substantially the same investment
strategies as the Fund and both funds invest substantially all of their assets
in investment grade municipal securities. ACM Municipal Securities is a smaller
fund with approximately $213 million in assets (including $90 million
attributable to preferred shares) as compared to the Fund's assets of
approximately $508 million (including $195 million attributable to preferred
shares). At the Meeting and at their October 31-November 2, 2006 regular
meeting, the Fund's Directors considered the recommendation of AllianceBernstein
L.P. (the "Adviser"), the investment adviser for the Fund and ACM Municipal
Securities, that they approve the Acquisition. The Adviser presented pro forma
information indicating that the Acquisition would result in a very modest
reduction in the Fund's expense ratio (approximately one basis point). In
addition, in response to a request by the Directors on November 2, 2006, the
Adviser agreed to a 10 basis point reduction in the fee payable to it by the
Fund under the Advisory Agreement. The Directors noted that because of voluntary
fee waivers currently in effect, the Fund would benefit from the reduced
contractual fee rate commencing in January 2010. The Directors also considered
extensive amounts of information about the costs and benefits of the
Acquisition, including the fact that a portion of the expenses of the
Acquisition of approximately $138,000 (relating primarily to the cost of the
special meeting to which this proxy statement relates) would be borne by the
Fund.

     The Fund's Directors are also the Directors of ACM Municipal Securities,
and they noted that the Acquisition would result in a more significant expense
ratio reduction for common stockholders of that much smaller fund than for
common stockholders of the Fund. After discussion and consultation with their
independent counsel, the Fund's Board of Directors determined that the
Acquisition was in the best interests of the Fund and that the interests of the
Fund's stockholders would not be diluted as a result of the Acquisition.

Issuance of the Fund's Common Stock in Connection with the Acquisition

     Approval of the Acquisition by the Fund's stockholders is not required
under applicable state law. However, the Fund's common stock is listed on the
New York Stock Exchange ("NYSE") and the new shares to be issued in connection
with the Acquisition will be listed on the NYSE. As a condition to listing,
Section 312 of the NYSE Listed Company Manual ("NYSE Rule 312") requires a
listed company to obtain stockholder approval prior to the issuance of common
stock if any transaction or series of transactions would result in an increase
by 20% or more in the amount of shares outstanding.

     The Acquisition will involve the issuance by the Fund of shares of common
stock to ACM Municipal Securities common stockholders and shares of preferred
stock to ACM Municipal Securities preferred stockholders. The approval of the
issuance of preferred shares by the Fund is not being sought from common
stockholders or preferred stockholders since the preferred shares are not listed
on the NYSE and the Fund's charter permits the issuance of additional parity
preferred stock provided that the issuance of that stock does not affect that
stock's ratings. The preferred stockholders, however, have the right to vote
with the common stockholders to approve the issuance of the common stock.

     The Acquisition requires the approval of ACM Municipal Securities
stockholders and a separate meeting of those stockholders will be convened to
vote on the Acquisition. If the Acquisition is not approved by ACM Municipal
Securities stockholders, it will not occur. In addition, if the Fund's
stockholders do not approve the issuance of the Fund's common shares, the
Acquisition will not occur even if approved by ACM Municipal Securities
stockholders. The Acquisition is structured as a tax-free exchange of shares and
cannot occur if the Fund's stockholders do not approve the issuance of common
shares that would be exchanged for common shares of ACM Municipal Securities.

     The Fund's Board of Directors seeks your approval of the Proposal. Approval
of the Proposal requires the affirmative vote of a majority of votes cast by the
Fund's stockholders, provided that the total votes cast on the Proposal
represents over 50% of all securities entitled to vote on the Proposal.

     The Board of Directors recommends that you vote "FOR" the Proposal.

                               VOTING INFORMATION

     The Board of Directors has fixed the close of business on December 15, 2006
as the Record Date for the determination of stockholders entitled to notice of,
and to vote at, the Meeting and any adjournment thereof. The outstanding voting
shares of the Fund as of November 15, 2006 consisted of 20,518,836 shares of
common stock and 1,950 shares each of Series M Preferred Stock, Series T
Preferred Stock, Series W Preferred Stock and Series TH Preferred Stock, each
share being entitled to one vote at the Meeting.

     Those stockholders who hold shares directly and not through a broker or
nominee (that is, a stockholder of record) may authorize their proxies to cast
their votes by completing a proxy card and returning it by mailing the enclosed
postage-paid envelope as well as telephoning toll free [___________]. Owners of
shares held through a broker or nominee (who is the stockholder of record for
those shares) should follow the directions provided to the stockholder by the
broker or nominee to submit voting instructions. Instructions to be followed by
a stockholder of record to submit a proxy via telephone, including use of the
Control Number on the stockholder's proxy card, are designed to verify
stockholder identities, to allow stockholders to give voting instructions and to
confirm that stockholder instructions have been recorded properly. Stockholders
who authorize proxies by telephone should not also return a proxy card. A
stockholder of record may revoke that stockholder's proxy at any time prior to
exercise thereof by giving written notice to the Secretary of the Fund at 1345
Avenue of the Americas, New York, New York 10105, by authorizing a later-dated
proxy (either by signing and mailing another proxy card or, by telephone as
indicated above), or by personally attending and voting at the Meeting.

     Properly executed proxy cards may be returned with instructions to abstain
from voting or to withhold authority to vote (an "abstention") or represent a
broker "non-vote" (which is a proxy from a broker or nominee indicating that the
broker or nominee has not received instructions from the beneficial owner or
other person entitled to vote shares on a particular matter with respect to
which the broker or nominee does not have the discretionary power to vote).
Abstentions and broker non-votes will be considered present for purposes of
determining the existence of a quorum for the transaction of business but will
have the effect of a vote against the Proposal.

     Approval of the Proposal described requires the affirmative vote of a
majority of votes cast, provided that total votes cast on the Proposal
represents over 50% of all securities entitled to vote on the matter. In order
for the vote to occur at the Meeting, a quorum must be present. A quorum will
consist of the presence in person or by proxy of the holders of a majority of
the shares of the Fund entitled to vote at the Meeting. In the event that a
quorum is not present at the Meeting or, even if a quorum is present, in the
event that sufficient votes in favor of the position recommended by the Board of
Directors on the Proposal are not timely received, the Chairman of the Board may
authorize, or the persons named as proxies may propose and vote for, one or more
adjournments of the Meeting, with no other notice than announcement at the
Meeting, up to 120 days after the Record Date, in order to permit further
solicitation of proxies. Shares represented by proxies indicating a vote
contrary to the position recommended by the Directors on a proposal as to which
the Meeting is proposed to be adjourned will be voted against adjournment.

     If any proposal, other than the Proposal, properly comes before the
Meeting, shares represented by proxies will be voted on all such proposals in
the discretion of the person or persons holding the proxies. The Fund has not
received notice, and is not otherwise aware, of any other matter to be presented
at the Meeting.

     The Fund has engaged The Altman Group, Inc. (the "Proxy Solicitor"), 60
East 42nd Street, Suite 405, New York, New York 10165 to assist in soliciting
proxies for the Meeting. The Proxy Solicitor will receive a fee of $[________]
from the Fund for its solicitation services, plus reimbursement of out-of-pocket
expenses.

                                OTHER INFORMATION

     Officers of the Fund
     --------------------

     Certain information concerning the Fund's officers is set forth below. The
Fund's officers are elected annually by the Board of Directors until his or her
successor is duly elected and qualifies.

--------------------------------------------------------------------------------
Name, Address*            Position(s) (Month and   Principal Occupation During
and Age                   Year First Elected)      the Past 5 Years
--------------------------------------------------------------------------------
Marc O. Mayer             President and Chief      Executive Vice President of
49                        Executive Officer        the Adviser since 2001, and
                          (11/03)                  Executive Managing Director
                                                   of AllianceBernstein
                                                   Investments, Inc. ("ABI")
                                                   since 2003; prior thereto, he
                                                   was head of AllianceBernstein
                                                   Institutional Investments, a
                                                   unit of the Adviser from
                                                   2001-2003; prior thereto,
                                                   Chief Executive Officer of
                                                   Sanford C. Bernstein & Co.,
                                                   LLC (institutional research
                                                   and brokerage arm of
                                                   Bernstein & Co. LLC ("SCB &
                                                   Co.")) and its predecessor
                                                   since prior to 2001. He is a
                                                   Director of SCB Partners,
                                                   Inc. and SCB, Inc.

--------------------------------------------------------------------------------
Philip L. Kirstein        Senior Vice President    Senior Vice President and
61                        and Independent          Independent Compliance
                          Compliance Officer       Officer of the
                          (10/04)                  AllianceBernstein Funds, with
                                                   which he has been associated
                                                   since October 2004. Prior
                                                   thereto, he was Of Counsel to
                                                   Kirkpatrick & Lockhart, LLP
                                                   from October 2003 to October
                                                   2004, and General Counsel of
                                                   Merrill Lynch Investment
                                                   Managers, L.P. since prior to
                                                   2001 until March 2003.

--------------------------------------------------------------------------------
Robert B. Davidson, III   Senior Vice President    Senior Vice  President of
45                        (4/02)                   AllianceBernstein
                                                   Corporation ("AB Corp.")**,
                                                   with which he has been
                                                   associated since prior to
                                                   2001.

--------------------------------------------------------------------------------
Douglas J. Peebles        Senior Vice President    Executive Vice  President of
41                        (6/04)                   AB Corp.**, with which he has
                                                   been associated since prior
                                                   to 2001.

--------------------------------------------------------------------------------
Jeffrey S. Phlegar        Senior Vice President    Executive Vice  President of
40                        (6/04)                   AB Corp.**, with which he has
                                                   been associated since prior
                                                   to 2001.

--------------------------------------------------------------------------------
Michael G. Brooks         Vice President           Senior Vice President of AB
58                        (10/05)                  Corp.**, with which has been
                                                   associated since prior to
                                                   2001.

--------------------------------------------------------------------------------
Fred S. Cohen             Vice President           Senior Vice President of AB
48                        (10/05)                  Corp.**, with which has been
                                                   associated since prior to
                                                   2001.

--------------------------------------------------------------------------------
Terrance T. Hults         Vice President           Senior Vice President of AB
40                        (12/01)                  Corp.**, with which has been
                                                   associated since prior to
                                                   2001.

--------------------------------------------------------------------------------
Emilie D. Wrapp           Secretary                Senior Vice President,
51                        (10/05)                  Assistant General Counsel and
                                                   Assistant Secretary of ABI**,
                                                   with which she has been
                                                   associated since prior to
                                                   2001.

--------------------------------------------------------------------------------
Joseph J. Mantineo        Treasurer and Chief      Senior Vice President of
47                        Financial Officer        AllianceBernstein Investor
                          (8/06)                   Services, Inc. ("ABIS"),**
                                                   with which he has been
                                                   associated since prior to
                                                   2001.

--------------------------------------------------------------------------------
Thomas R. Manley          Controller               Vice President of the
55                        (12/01)                  Adviser**, with which he has
                                                   been associated since prior
                                                   to 2001.
--------------------------------------------------------------------------------

*    The address for the Fund's officers is 1345 Avenue of the Americas, New
     York, New York 10105.

**   An affiliate of the Fund.

Stock Ownership
---------------

     As of November 15, 2006, the directors and officers of the Fund as a group
beneficially owned less than 1% of the outstanding shares of common stock of the
Fund and each class of preferred stock of the Fund. To the knowledge of the
Fund, only the following beneficially owned 5% or more of the outstanding shares
of the common stock of the Fund.

Name and                       Number of Outstanding  Percentage of Outstanding
Address of Stockholder         Shares Owned           Shares Owned
----------------------         ---------------------  -------------------------
First Trust Portfolios L.P.      1,222,189                 6.0%
First Trust Advisors L.P.
The Charger Corporation
1001 Warrenville Road
Lisle, IL 60532


                    INFORMATION AS TO THE INVESTMENT ADVISER
                                AND ADMINISTRATOR

     The Fund's investment adviser is AllianceBernstein L.P., with principal
offices at 1345 Avenue of the Americas, New York, New York 10105. The investment
adviser also provides administrative services to the Fund.

Other Service Providers
-----------------------

     The Adviser provides standard administrative services to the Fund under the
Fund's Advisory Agreement. Under the terms of a Shareholder Inquiry Agency
Agreement with AllianceBernstein Investor Services, Inc. (prior to February 24,
2006 known as Alliance Global Investor Services, Inc.) ("ABIS"), an affiliate of
the Adviser, the Fund compensates ABIS for responding to certain inquiries from
stockholders. State Street Bank & Trust Company, One Lincoln Street, Boston, MA
02111 serves as custodian for the Fund. The Bank of New York, 100 Church Street,
New York, NY 10286, serves as the Fund's transfer agent for the preferred stock.
Computershare Trust Company N.A., P.O. Box 43011, Providence, RI 02940, serves
as the Fund's transfer agent for the common stock.

                                  OTHER MATTERS

     Management of the Fund does not know of any matters properly to be
presented at the Meeting other than those mentioned in this Proxy Statement. If
any other matters properly come before the Meeting, the shares represented by
proxies will be voted with respect thereto in the discretion of the person or
persons voting the proxies.

                             REPORTS TO STOCKHOLDERS

     The Fund will furnish each person to whom this Proxy Statement is delivered
with a copy of its latest annual report to stockholders and its subsequent
semi-annual report to stockholders, if any, upon request and without charge. To
request a copy, please call ABIS at 1-800-227-4618 or contact Dennis Bowden at
AllianceBernstein L.P., 1345 Avenue of the Americas, New York, New York 10105.

                                        By Order of the Board of Directors,


                                        Marc O. Mayer
                                        President

__________, 2007

New York, New York

SK 00250 0209 675788 v5


                               FORM OF PROXY CARD

                                           Vote by Touch-Tone Phone or by Mail!!
                       CALL: To vote by phone, call toll-free 1-800-331-5817 and
                                               follow the recorded instructions.
                    MAIL: Return the signed proxy card in the enclosed envelope.

                                 PROXY IN CONNECTION WITH THE SPECIAL MEETING OF
                                       STOCKHOLDERS TO BE HELD FEBRUARY 22, 2007

     THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF THE FUND

                  Alliance National Municipal Income Fund, Inc.

The undersigned  hereby  appoints  Christina Morse and Carol Rappa, or either of
them, as proxies for the undersigned,  each with full power of substitution,  to
attend  the  Meeting  of  Stockholders  (the  "Meeting")  of  Alliance  National
Municipal  Income Fund,  Inc.  (the "Fund"),  to be held at 11:00 a.m.,  Eastern
Time,  on Thursday,  February 22, 2007 at the offices of the Fund at 1345 Avenue
of the Americas,  41st Floor,  New York, New York 10105, and at any postponement
or adjournment  thereof, to cast on behalf of the undersigned all votes that the
undersigned  is entitled to cast at the Meeting and  otherwise to represent  the
undersigned  at the Meeting  with all powers  possessed  by the  undersigned  if
personally present at the Meeting.  The undersigned hereby acknowledges  receipt
of the Notice of Meeting and  accompanying  Proxy  Statement,  revokes any proxy
previously  given with respect to the Meeting and instructs said proxies to vote
said shares as indicated on the reverse side of this proxy card.

IF THIS PROXY CARD IS PROPERLY  EXECUTED,  THE VOTES  ENTITLED TO BE CAST BY THE
UNDERSIGNED WILL BE CAST AS SPECIFIED.  IF THIS PROXY CARD IS PROPERLY  EXECUTED
BUT NO SPECIFICATION IS MADE FOR THE PROPOSAL,  THE VOTES ENTITLED TO BE CAST BY
THE  UNDERSIGNED  WILL BE CAST  "FOR" THE  PROPOSAL  AS  DESCRIBED  IN THE PROXY
STATEMENT.  ADDITIONALLY,  THE VOTES ENTITLED TO BE CAST BY THE UNDERSIGNED WILL
BE CAST IN THE  DISCRETION  OF THE PROXY  HOLDER ON ANY  OTHER  MATTER  THAT MAY
PROPERLY COME BEFORE THE MEETING OR ANY ADJOURNMENT THEREOF.

PLEASE  VOTE,  DATE AND SIGN ON THE  REVERSE  SIDE AND  RETURN  THIS  PROXY CARD
PROMPTLY IN THE ENCLOSED ENVELOPE.

[x]  Please mark votes as in this example
--------------------------------------------------------------------------------



THE PROPOSAL
------------

Issuance of shares of the Fund's common stock in connection with the proposed
acquisition of all of the assets and assumption of all of the liabilities of ACM
Municipal Securities Income Fund, Inc. by the Fund.

       FOR                    AGAINST                          ABSTAIN
       [_]                      [_]                               [_]

To vote and  otherwise  represent the  undersigned  on any other matter that may
properly  come before the Meeting,  any  postponement  or  adjournment  thereof,
including any matter incidental to the conduct of the Meeting, in the discretion
of the Proxy holder(s).

Please check here if you plan to attend the Meeting.

     [_]   I WILL ATTEND THE MEETING.

Please be sure to sign your name(s) exactly as it appears on this proxy card.


                  ------------------------------------------
                  Signature(s) of Stockholder(s)

                  Date: __________________________, 2007


                  ------------------------------------------
                  Signature(s) of Stockholder(s)

                  Date: __________________________, 2007


IMPORTANT:  Please sign  legibly  and exactly as the name  appears on this proxy
card.  Joint  owners must EACH sign the proxy card.  When  signing as  executor,
administrator,  attorney,  trustee or  guardian,  or as  custodian  for a minor,
please  give the FULL  title of such.  If a  corporation,  please  give the FULL
corporate name and indicate the signer's  office.  If a partner,  please sign in
the partnership name.

***PLEASE MARK, SIGN, DATE AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED
ENVELOPE***



SK 00250 0209 723875