Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4WIL callsign genealogy
Currently held by WEST, 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 KO4WIL's current licensee, walking backwards.
- West, William ETNgranted 2020-12-11cancelled 2021-02-09
Successor callsigns
Callsigns held now by people who previously held KO4WIL.
No current licensee on record previously held this callsign.