Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4MT callsign genealogy
Currently held by Turner, Mason C
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 AF4MT's current licensee, walking backwards.
- Turner, Mason CFLgranted 2012-03-12cancelled 2019-10-16
Successor callsigns
Callsigns held now by people who previously held AF4MT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AF4MT, oldest first.
- PALMERTON, JAMES H NC1998-12-01 → cancelled 2010-04-01
- Turner, Mason C FL2019-10-16 active