Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4THF callsign genealogy
Currently held by KOEHL, RANDALL 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 KF4THF's current licensee, walking backwards.
- KC4TMXno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KF4THF.
- KOEHL, RANDALL CGAgranted 2020-01-22