Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AG4BT callsign genealogy
Currently held by Vaughn, Thomas H
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 AG4BT's current licensee, walking backwards.
- VAUGHN, THOMAS HKYgranted 1990-11-06cancelled 2000-08-17
- KC4SVAno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AG4BT.
No current licensee on record previously held this callsign.