Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4YF callsign genealogy
Currently held by RAAB, WILLIAM E
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 KX4YF's current licensee, walking backwards.
- RAAB, WILLIAM EGAgranted 2016-04-19cancelled 2020-04-22
Successor callsigns
Callsigns held now by people who previously held KX4YF.
No current licensee on record previously held this callsign.