Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4UMO callsign genealogy
Currently held by BEALE, WILLIAM W
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 KK4UMO's current licensee, walking backwards.
- BEALE, WILLIAM WVAgranted 2023-11-14
Successor callsigns
Callsigns held now by people who previously held KK4UMO.
No current licensee on record previously held this callsign.