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 quarterly report of Motient Corporation, a
Delaware corporation (the "Company"), on Form 10-Q for the period ending March
31, 2003, as filed with the Securities and Exchange Commission on the date
hereof (the "Report"), I, Christopher W. Downie, Executive Vice President, Chief
Financial Officer and Treasurer of the Company, certify, in my capacity as
principal executive officer and principal financial 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 Financial
                                  Officer and Treasurer (principal executive
                                  officer and principal financial officer)

                                  April 23, 2004