Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KU4OA callsign genealogy
Currently held by FIALLO, VIDAL
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 KU4OA's current licensee, walking backwards.
- N4COUcancelledcancelled 1998-01-23
Successor callsigns
Callsigns held now by people who previously held KU4OA.
- FIALLO, VIDALFLgranted 2019-12-02