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


                                    FORM 8-K
                                 CURRENT REPORT


                     PURSUANT TO SECTION 13 or 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934



      Date of report (Date of earliest event reported): March 10, 2003


                               T-MOBILE USA, INC.
          ------------------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)


          Delaware                      000-29667                91-1983600
--------------------------------------------------------------------------------
(State or Other Jurisdiction           (Commission           (IRS Employer
of Incorporation)                      File Number)          Identification No.)




12920 - S.E. 38th Street, Bellevue, Washington                            98006
--------------------------------------------------------------------------------
  (Address of Principal Executive Offices)                            (Zip Code)


Registrant's telephone number, including area code    (425) 378-4000
                                                   --------------------







Item 7. Exhibits.

Exhibit Number      Description of Document
--------------      -----------------------
99.01               Certification of John W. Stanton, Chairman of
                    T-Mobile USA Inc., pursuant to Section 906 of
                    the Sarbanes-Oxley Act of 2002 (Subsections (a)
                    and (b) of Section 1350, Chapter 63 of Title
                    18, United States Code), filed solely for
                    purposes of incorporation by reference into
                    Item 9 herein.

99.02               Certification of Brian W. Kirkpatrick, Executive
                    Vice President and Chief Financial Officer of T-
                    Mobile USA, Inc., pursuant to Section 906 of the
                    Sarbanes-Oxley Act of 2002 (Subsections (a) and
                    (b) of Section 1350, Chapter 63 of Title 18,
                    United States Code), filed solely for purposes
                    of incorporation by reference into Item 9 herein.

Item 9.  Regulation FD Disclosure.

On March 10, 2003, T-Mobile USA, Inc. (the "Company") filed with the Securities
and Exchange Commission its Annual Report on Form 10-K for the year ended
December 31, 2002. Accompanying the Annual Report as correspondence were a
transmittal letter and the certifications of John W. Stanton, the Company's
Chairman and Brian W. Kirkpatrick, the Company's Executive Vice President and
Chief Financial Officer, pursuant to Section 906 of the Sarbanes-Oxley Act of
2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United
States Code), in each case attached as exhibits hereto and incorporated herein
solely for purposes of this Item 9.


---------------
The certifications attached as exhibits hereto are being
furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and
are not being filed as part of the Company's Annual Report on Form 10-K for the
year ended December 31, 2002 or as a separate disclosure document. The
information included in this Current Report on Form 8-K (including the exhibits
hereto) is furnished pursuant to Item 9 and shall not be deemed to be "filed"
for the purposes of Section 18 of the Securities Exchange Act of 1934, as
amended, or otherwise subject to the liabilities of that Section or Sections 11
and 12(a)(2) of the Securities Act of 1933, as amended. This Current Report
(including the exhibits hereto) will not be deemed an admission as to the
materiality of any information required to be disclosed solely to satisfy the
requirements of Regulation FD.






                                    SIGNATURE


     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.


                                            T-Mobile USA, Inc.
                                            --------------------------------
                                                     (Registrant)



Dated:  March 10, 2003                      By: /s/ Brian W. Kirkpatrick
                                            ------------------------------------
                                            Name:  Brian W. Kirkpatrick
                                            Title: Executive Vice President and
                                                   Chief Financial Officer





                                INDEX TO EXHIBITS


Exhibit Number                Description of Document
--------------                -----------------------

99.01                         Certification of John W. Stanton, Chairman of
                              T-Mobile USA, Inc., pursuant to Section 906 of the
                              Sarbanes-Oxley Act of 2002 (Subsections (a) and
                              (b) of Section 1350, Chapter 63 of Title 18,
                              United States Code), filed solely for purposes of
                              incorporation by reference into Item 9 herein.

99.02                         Certification of Brian W. Kirkpatrick, Executive
                              Vice President and Chief Financial Officer of
                              T-Mobile USA, Inc., pursuant to Section 906 of the
                              Sarbanes-Oxley Act of 2002 (Subsections (a) and
                              (b) of Section 1350, Chapter 63 of Title 18,
                              United States Code), filed solely for purposes of
                              incorporation by reference into Item 9 herein.