EXHIBIT 32.1

           Certification Pursuant To 8 U.S.C. Section 1350, As Adopted
            Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002



         In connection with the amended annual report of Motient Corporation, a
Delaware corporation (the "Company"), on Form 10-K/A for the period ending
December 31, 2003, as filed with the Securities and Exchange Commission on the
date hereof (the "Report"), I, Christopher W. Downie, Executive Vice President,
Chief Operating Officer and Treasurer, of the Company, certify, in my capacity
as the principal executive officer, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my
knowledge and based on my review of the Report:


     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 result of operations of
          the Company.



                                 /s/  Christopher W. Downie
                                 ----------------------------------
                                 Christopher W. Downie

                                 Executive Vice President, Chief
                                 Operating Officer and Treasurer


                                 May 23, 2005