Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AG4MT callsign genealogy
Currently held by TIMBERLAKE III, 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 AG4MT's current licensee, walking backwards.
- TIMBERLAKE III, THOMAS AFLgranted 2023-04-28cancelled 2023-06-09
Successor callsigns
Callsigns held now by people who previously held AG4MT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AG4MT, oldest first.
- Biggs, Matthew B VA2010-12-14 → cancelled 2022-12-15
- TIMBERLAKE III, THOMAS A FL2023-06-09 active