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


                                    FORM 15


CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(G) OF
THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER
SECTIONS 13 AND 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934.


                         Commission File Number 000-19903



                                 METRICOM, INC.
                                 --------------
              (Exact name of registrant as specified in its charter)


                               2033 Gateway Place
                                   Suite 500
                           San Jose, California 95110
                                 (408) 573-3620
      ----------------------------------------------------------------------
     (Address, including zip code, and telephone number, including area code,
                 of registrant's principal executive offices)


                      Common Stock, par value $0.001 per share
               ------------------------------------------------------
              (Title of each class of securities covered by this Form)


                                       N/A
                           -----------------------------
  (Titles of all other classes of securities for which a duty to file reports
                      under Section 13(a) or 15(d) remains)


Please place an X in the box(es) to designate the appropriate rule provision(s)
relied upon to terminate or suspend the duty to file reports:

        [X]  Rule 12g-4(a)(1)(i)                [ ]  Rule 12h-3(b)(1)(i)
        [ ]  Rule 12g-4(a)(1)(ii)               [ ]  Rule 12h-3(b)(1)(ii)
        [ ]  Rule 12g-4(a)(2)(i)                [ ]  Rule 12h-3(b)(2)(i)
        [ ]  Rule 12g-4(a)(2)(ii)               [ ]  Rule 12h-3(b)(2)(ii)
                                                [X]  Rule 15d-6

Approximate number of holders of record as of the certification or notice date:

One





                                        1.



Pursuant to the requirements of the Securities Exchange Act of 1934, Metricom,
Inc. has caused this certification/notice to be signed on its behalf by the
undersigned duly authorized person.


                                        METRICOM, INC.


Date:  January 2, 2003                  By: /s/ Paul J. Weber
                                            ------------------------------
                                            Paul J. Weber
                                            Operations Vice President















                                        2.