Attached files
| file | filename |
|---|---|
| 10-K - 10-K - XO HOLDINGS INC | w77706e10vk.htm |
| EX-23.1 - EX-23.1 - XO HOLDINGS INC | w77706exv23w1.htm |
| EX-31.1 - EX-31.1 - XO HOLDINGS INC | w77706exv31w1.htm |
| EX-21.1 - EX-21.1 - XO HOLDINGS INC | w77706exv21w1.htm |
| EX-31.2 - EX-31.2 - XO HOLDINGS INC | w77706exv31w2.htm |
| EX-23.2 - EX-23.2 - XO HOLDINGS INC | w77706exv23w2.htm |
Exhibit 32.1
CERTIFICATION
Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of
2002
Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of
2002
In connection with the Annual Report of XO Holdings, Inc. (the “registrant”) on Form 10-K for the
year ended December 31, 2009 as filed with the Securities and Exchange Commission on the date
hereof (the “Report”) we, Carl J. Grivner, Chief Executive Officer, and Laura W. Thomas, Senior
Vice President and Chief Financial Officer of the Registrant, certify that, to the best of our
knowledge:
1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and
2. The information contained in the Report fairly presents, in all material respects, the
financial condition and results of operations of the registrant.
Date: March 31, 2010
/s/ Carl J. Grivner |
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Chief Executive Officer |
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(Principal Executive Officer) |
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/s/ Laura W. Thomas |
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Senior Vice President and Chief Financial Officer |
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(Principal Financial Officer) |