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

WF7M callsign genealogy

Currently held by PETERSON, MARK B

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 WF7M's current licensee, walking backwards.

  1. K7HVEcancelled· E
    PETERSON, MARK BWAgranted 2001-07-28cancelled 2005-05-27

Successor callsigns

Callsigns held now by people who previously held WF7M.

  1. NA7XXactive
    TTT Contest ClubCOgranted 2024-03-14
  2. K7HVEcancelled· E
    PETERSON, MARK BWAgranted 2001-07-28cancelled 2005-05-27

All historical holders

Every license row we've seen with the callsign WF7M, oldest first.

  • PETERSON, MARK B WA
    1996-06-18 → cancelled 2001-07-28
  • TTT RADIO CLUB CO
    2004-02-10 → cancelled 2004-06-08
  • PETERSON, MARK B WA
    2015-12-01 active
← Back to WF7M License history →