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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W1IMS callsign genealogy

Currently held by KEEF, WILLIAM G

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by W1IMS's current licensee, walking backwards.

  1. N9MERcancelled· T
    Rohr, Thomas EINgranted 2004-01-03cancelled 2004-02-07
  2. KC9BKWcancelled· T
    Rohr, Thomas EINgranted 2002-04-02cancelled 2004-01-03

Successor callsigns

Callsigns held now by people who previously held W1IMS.

  1. NJ1Oactive· E
    KEEF, WILLIAM GMEgranted 2021-04-28

All historical holders

Every license row we've seen with the callsign W1IMS, oldest first.

  • KEEF, WILLIAM G ME
    1999-02-23 → cancelled 2001-05-11
  • Rohr, Thomas E IN
    2024-10-18 active
← Back to W1IMS License history →