T-Mobile US (TMUS) 10-Q 2008 Q3 Quarterly report

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

In connection with the Quarterly Report of MetroPCS Communications, Inc. (the “Company”) on Form 10-Q for the period ending September 30, 2008 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Roger D. Linquist, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1.	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

November 10, 2008

By:	/s/ Roger D. Linquist
Roger D. Linquist President and Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by Company and furnished to the Securities and Exchange Commission or its staff upon request.