Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4UM callsign genealogy
Currently held by Wilhite, Ronald
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 AF4UM's current licensee, walking backwards.
- WILHITE, RONALDFLgranted 1993-06-22cancelled 2000-05-23
- KB4MLIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AF4UM.
No current licensee on record previously held this callsign.