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

W7UM callsign genealogy

Currently held by GOLD MOUNTAIN DX CLUB

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 W7UM's current licensee, walking backwards.

  1. N0IPactive· E
    MITCHELL, TODD LMNgranted 2021-06-08
  2. NI0Lactive· E
    PRICE, THOMAS LCOgranted 2018-04-07
  3. KE0GLAcancelled· E
    PRICE, THOMAS LCOgranted 2015-11-04cancelled 2018-04-07

Successor callsigns

Callsigns held now by people who previously held W7UM.

  1. W6SZPcancelled· E
    MASON, MICHAEL LAZgranted 2017-05-01cancelled 2021-10-30

All historical holders

Every license row we've seen with the callsign W7UM, oldest first.

  • GOETTER, WILLIAM F WA
    1996-07-18 → cancelled 1997-09-18
  • GOLD MOUNTAIN DX CLUB AZ
    2003-01-24 → cancelled 2004-05-04
  • Mason, Michael L CA
    2006-05-23 → cancelled 2007-07-24
  • BROWN, MARK J CO
    2019-05-24 active
← Back to W7UM License history →