Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4BT callsign genealogy
Currently held by Tradewell, William E
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 AA4BT's current licensee, walking backwards.
- Tradewell, William EGAgranted 2010-05-06cancelled 2013-09-27
Successor callsigns
Callsigns held now by people who previously held AA4BT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4BT, oldest first.
- HOMAN, ALFRED A FL1993-04-20 → cancelled 2005-04-21
- Tradewell, William E GA2013-09-27 → cancelled 2025-09-30