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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W1DSM callsign genealogy

Currently held by LIBBY JR, ROGER H

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 W1DSM's current licensee, walking backwards.

  1. AI7FQcancelled· E
    McClimans, Daryl SORgranted 2020-11-07cancelled 2024-03-09
  2. KA7MACcancelled· E
    McClimans, Daryl SORgranted 2020-11-07cancelled 2021-02-23
  3. KJ7RPFcancelled· T
    McClimans, Daryl SORgranted 2020-10-19cancelled 2020-11-07

Successor callsigns

Callsigns held now by people who previously held W1DSM.

  1. K7DSMactive· E
    McClimans, Daryl SORgranted 2026-07-17

All historical holders

Every license row we've seen with the callsign W1DSM, oldest first.

  • LIBBY JR, ROGER H FL
    2006-06-17 → cancelled 2018-07-19
  • McClimans, Daryl S OR
    2024-03-09 → cancelled 2026-07-17
← Back to W1DSM License history →