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

W5MMB callsign genealogy

Currently held by BRUMFIELD, MICHAEL M

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 W5MMB's current licensee, walking backwards.

  1. KI7RJAcancelled· T
    BRUMFIELD, MICHAEL MORgranted 2017-10-31cancelled 2017-11-28

Successor callsigns

Callsigns held now by people who previously held W5MMB.

  1. AJ7BScancelled· E
    BRUMFIELD, MICHAEL MORgranted 2017-11-28cancelled 2025-02-15

All historical holders

Every license row we've seen with the callsign W5MMB, oldest first.

  • ANZELMO JR, SAM S KY
    2004-05-29 → cancelled 2016-07-19
  • BRUMFIELD, MICHAEL M OR
    2017-11-28 → cancelled 2025-01-06