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

AC7AM callsign genealogy

Currently held by BUTLER, THOMAS A

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 AC7AM's current licensee, walking backwards.

  1. AC4IRcancelled· E
    MC COY, DAVID SNCgranted 2012-06-09cancelled 2021-10-26
  2. K4DSMactive· E
    Mantooth, Daniel STNgranted 2025-09-16
  3. KX4CHcancelled· E
    Mantooth, Daniel STNgranted 2017-03-08cancelled 2025-09-16
  4. KN4BPBcancelled· E
    Mantooth, Daniel STNgranted 2017-03-08cancelled 2017-04-10

Successor callsigns

Callsigns held now by people who previously held AC7AM.

No current licensee on record previously held this callsign.

← Back to AC7AM License history →