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

W1MU callsign genealogy

Currently held by ZAK, MICHAEL J

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 W1MU's current licensee, walking backwards.

  1. K1MZactive· E
    LANGRELL, MICHAEL DIDgranted 2023-12-12
  2. AA7VRcancelled· E
    LANGRELL, MICHAEL DIDgranted 2023-01-28cancelled 2023-12-12
  3. N7SWV
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held W1MU.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W1MU, oldest first.

  • HUGHES, ALFRED M RI
    1988-01-19 → cancelled 2000-01-20
  • ZAK, MICHAEL J MA
    2020-01-04 active
← Back to W1MU License history →