Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG4GM callsign genealogy
Currently held by Holt, Charles M
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 AG4GM's current licensee, walking backwards.
- Holt, Charles MVAgranted 1999-03-09cancelled 2001-02-28
Successor callsigns
Callsigns held now by people who previously held AG4GM.
No current licensee on record previously held this callsign.