Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4OUK callsign genealogy
Currently held by SHAFFER, RONALD P
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 KF4OUK's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KF4OUK.
- N4HSVactiveNORTH ALA REPEATER ASSOCIATIONALgranted 2018-06-12