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

W5MAZ callsign genealogy

Currently held by WARREN, MICHAEL E

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 W5MAZ's current licensee, walking backwards.

  1. W0WGactive· E
    Hellwig, Stephen DCOgranted 2019-10-01
  2. KG0Zactive· E
    Chatterton, Jacob DMNgranted 2021-10-23
  3. KF0BQDcancelled· E
    Chatterton, Jacob DMNgranted 2020-09-15cancelled 2021-10-23

Successor callsigns

Callsigns held now by people who previously held W5MAZ.

  1. K0MAZcancelled· E
    WARREN, MICHAEL EMNgranted 2001-03-03cancelled 2005-02-23

All historical holders

Every license row we've seen with the callsign W5MAZ, oldest first.

  • WARREN, MICHAEL E MN
    1997-10-31 → cancelled 2001-03-03
  • WARREN, MICHAEL E NM
    2017-09-12 active
← Back to W5MAZ License history →