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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

AB4QT callsign genealogy

Currently held by BRUNN, ROBERT J

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 AB4QT's current licensee, walking backwards.

  1. KM4SSactive· E
    Stradtman Jr, Earl WALgranted 2018-09-07
  2. KM4SSScancelled· E
    Stradtman Jr, Earl WALgranted 2016-01-29cancelled 2018-09-07
  3. KM4PCTcancelled· T
    Stradtman Jr, Earl WALgranted 2015-11-23cancelled 2016-01-29

Successor callsigns

Callsigns held now by people who previously held AB4QT.

No current licensee on record previously held this callsign.

← Back to AB4QT License history →