Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4ZX callsign genealogy
Currently held by TALLEY, ALVIN C
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 KO4ZX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KO4ZX.
No current licensee on record previously held this callsign.