Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3FM callsign genealogy
Currently held by TROY, JOHN J
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 AB3FM's current licensee, walking backwards.
- TROY, JOHN JPAgranted 2006-12-15cancelled 2007-05-29
Successor callsigns
Callsigns held now by people who previously held AB3FM.
No current licensee on record previously held this callsign.