Confidence: Medium · Source: FCC ULS · As of 2026-10-24
N4FYR callsign genealogy
Currently held by Yost, Matthew S
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 N4FYR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4FYR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4FYR, oldest first.
- DEINES, MICHAEL J FL2006-08-19 → cancelled 2018-08-21
- Yost, Matthew S NC2026-10-14 active