Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4RF callsign genealogy
Currently held by TRAIL, MATTHEW T
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 AF4RF's current licensee, walking backwards.
- Mates, Vincent ANCgranted 2016-11-29cancelled 2023-05-05
Successor callsigns
Callsigns held now by people who previously held AF4RF.
- TRAIL, MATTHEW TNYgranted 2018-10-01
All historical holders
Every license row we've seen with the callsign AF4RF, oldest first.
- TRAIL, MATTHEW T NY2008-09-20 → cancelled 2018-10-01
- Mates, Vincent A NC2023-05-05 active