EXHIBIT F
Joint Filing Agreement
In accordance with Rule 13d-1(k)(1) under the Securities Exchange
Act of 1934, as amended, the persons named below agree to the joint filing on
behalf of each of them of a statement on Schedule 13D (including amendments
thereto) with respect to the common stock, par value $.01 per share, of XO
Communications, Inc., a Delaware corporation, and further agree that this Joint
Filing Agreement be included as an Exhibit to such joint filings. In evidence
thereof, the undersigned, being duly authorized, hereby execute this Agreement
as of this 9th day of August 2004.
/s/ Xxxx X. Icahn
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Xxxx X. Icahn, Individually
Tramore LLC
/s/ Xxxxxx X. Xxxxxxx
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By: Xxxxxx X. Xxxxxxx
Title: Authorized Signatory
Cardiff Holding LLC
By: ACF Industries Holding Corp.,
its sole member
/s/ Xxxxxx X. Xxxxxxxx
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By: Xxxxxx X. Xxxxxxxx
Title: President and Treasurer
[Joint Filing Agreement re Amendment No. 4 to Schedule 13D for XO
Communications, Inc.]
ACF Industries Holding Corp.
/s/ Xxxxxx X. Xxxxxxxx
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By: Xxxxxx X. Xxxxxxxx
Title: President and Treasurer
Highcrest Investors Corp.
/s/ Xxxxxx X. Xxxxxxxx
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By: Xxxxxx X. Xxxxxxxx
Title: Assistant Secretary
Buffalo Investors Corp.
/s/ Xxxxxx X. Xxxxxxx
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By: Xxxxxx X. Xxxxxxx
Title: President and Treasurer
Starfire Holding Corporation
/s/ Xxxxxx X. Xxxxxxxx
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By: Xxxxxx X. Xxxxxxxx
Title: Authorized Signatory
[Joint Filing Agreement re Amendment No. 4 to Schedule 13D for XO
Communications, Inc.]
