UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                   Under the Securities Exchange Act of 1934
                              (Amendment No. 30)*

                               XO HOLDINGS, INC.
                                (Name of Issuer)

                    Common Stock, par value $0.01 per share
                         (Title of Class of Securities)

                                   98417K106
                                 (CUSIP Number)

                               Marc Weitzen, Esq.
                                General Counsel
                             Icahn Associates Corp.
                          767 Fifth Avenue, 47th Floor
                            New York, New York 10153
                                 (212) 702-4388
          (Name, Address and Telephone Number of Person Authorized to
                      Receive Notices and Communications)

                                January 19, 2011
            (Date of Event which Requires Filing of this Statement)

If  the filing person has previously filed a statement on Schedule 13G to report
the  acquisition  that  is  the subject of this Schedule 13D, and is filing this
schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following  box  /  /.

NOTE:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to  whom  copies  are  to  be  sent.

*The  remainder  of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent  amendment  containing  information  which  would  alter
disclosures  provided  in  a  prior  cover  page.

The information required on the remainder of this cover page shall not be deemed
to  be  "filed"  for the purpose of Section 18 of the Securities Exchange Act of
1934  ("Act") or otherwise subject to the liabilities of that section of the Act
but  shall  be  subject  to  all  other  provisions of the Act (however, see the
Notes).



                                  SCHEDULE 13D

Item 1. Security and Issuer

     This statement constitutes Amendment No. 30 to the Schedule 13D relating to
the  shares  of  Common  Stock,  par value $0.01 per share (the "Shares"), of XO
Holdings,  Inc.,  a Delaware corporation (the "Issuer"), and amends the Schedule
13D  relating  to  the  Shares  filed on January 27, 2003 and amended by each of
Amendment  Nos.  1  through  29  (as amended by Amendment Nos. 1 through 29, the
"Original  13D"),  on  behalf  of the Filing Persons (as defined in the Original
13D).  Capitalized  terms  used  herein  and  not  otherwise  defined  have  the
respective  meanings  ascribed  thereto  in  the  Original  13D.

Item 4. Purpose of Transaction

     Item 4 of the Original 13D is hereby amended by adding the following:

     On  January  19,  2011,  ACF  Industries  Holding Corp. ("ACF Holding"), an
entity  wholly owned by Carl Icahn, the Chairman and holder of a majority of the
outstanding  Shares,  sent a letter to the Chief Executive Officer of the Issuer
(the  "ACF  Holding  Letter"),  pursuant to which ACF Holding made a non-binding
proposal  to  acquire  all  of the outstanding Shares which it does not own, for
consideration  in the form of cash of $0.70 net per share. ACF Holding indicated
that this transaction would not be subject to its ability to obtain financing or
to  the results of any due diligence review of the Issuer. ACF Holding requested
that the Issuer initiate the appropriate process so that the Issuer can commence
reviewing  and considering this proposal. In addition, ACF Holding requested the
opportunity  to  have representatives of ACF Holding meet with those persons who
would  be  considering the proposal for the Issuer together with the advisors to
such  persons  to  engage  in a dialogue about why ACF Holding believes that the
proposed  $0.70 price net per share in cash represents appropriate consideration
to  be  paid to the minority stockholders. In connection with the foregoing, ACF
Holding noted that in no event is ACF Holding or its affiliates prepared to be a
seller  of  its Shares in any transaction and that therefore it will not sell or
transfer  its  Shares  to  a third party or vote in favor of a transaction which
involves  the  sale  or  transfer  of  its  shares  to  a  third  party.

     A  copy  of  the  ACF  Holding  Letter  is filed as Exhibit 1 hereto and is
incorporated  herein  by  reference.  The  description herein of the ACF Holding
Letter is qualified in its entirety by reference to the ACF Holding Letter filed
herewith.

Item 6. Contracts, Arrangements, Understandings or Relationship with Respect to
        Securities of the Issuer

     The  information  set  forth  above  in  Item  4  is incorporated herein by
reference.

Item 7. Material to be Filed as Exhibits

     Item 7 is hereby amended by the addition of the following:

     1. The ACF Holding Letter



                                   SIGNATURE

     After  reasonable  inquiry  and  to  the  best  of  each of the undersigned
knowledge and belief, each of the undersigned certifies that the information set
forth  in  this  statement  is  true,  complete  and  correct.

Dated:  January  20,  2011


ACF  INDUSTRIES  HOLDING  CORP.

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Vice  President


HIGHCREST  INVESTORS  CORP.

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Vice  President


BUFFALO  INVESTORS  CORP.

     By:  /s/  Edward  E.  Mattner
          ------------------------
          Name:  Edward  E.  Mattner
          Title:  President


STARFIRE  HOLDING  CORPORATION

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Treasurer


ARNOS  CORP.

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Authorized  Signatory






ARNOS  SUB  CORP.

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  President


BARBERRY  CORP.

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Treasurer


HOPPER  INVESTMENTS  LLC
BY:  Barberry  Corp.,  its  sole  member

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Treasurer


HIGH  RIVER  LIMITED  PARTNERSHIP
BY:  Hopper  Investments  LLC,  its  general  partner
BY:  Barberry  Corp.,  its  sole  member

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Treasurer

UNICORN  ASSOCIATES  CORPORATION

     By:  /s/  Keith  Cozza
          -----------------
          Name:  Keith  Cozza
          Title:  Vice  President








/s/  Carl  C.  Icahn
- --------------------
CARL  C.  ICAHN