Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7RF callsign genealogy
Currently held by Metcalf, John 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 K7RF's current licensee, walking backwards.
- Metcalf, John CUTgranted 2020-04-04cancelled 2026-04-17
Successor callsigns
Callsigns held now by people who previously held K7RF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7RF, oldest first.
- WALSH, JON R OR2015-04-02 → cancelled 2024-04-29
- Metcalf, John C UT2026-04-17 active