Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4GV callsign genealogy
Currently held by HAMM, RONALD L
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 AB4GV's current licensee, walking backwards.
- Vicars, Gary WFLgranted 2012-03-23cancelled 2013-12-03
Successor callsigns
Callsigns held now by people who previously held AB4GV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB4GV, oldest first.
- HAMM, RONALD L CA1990-10-02 → cancelled 2002-10-03
- Vicars, Gary W FL2023-12-02 active