Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4AOC callsign genealogy
Currently held by BARRETT, THOMAS V
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 KD4AOC's current licensee, walking backwards.
- Coleman, George GFLgranted 2023-07-04cancelled 2025-02-28
Successor callsigns
Callsigns held now by people who previously held KD4AOC.
- Emerson, Keith DFLgranted 2016-01-05cancelled 2016-10-21
All historical holders
Every license row we've seen with the callsign KD4AOC, oldest first.
- BARRETT, THOMAS V VA1991-05-14 → cancelled 2003-05-15
- emerson, keith D FL2015-11-17 → cancelled 2016-01-05
- Coleman, George G FL2025-02-28 active