Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4SBZ callsign genealogy
Currently held by Southern Amateur Radio Union
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 KO4SBZ's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KO4SBZ.
- KT4CWactiveSouthern Amateur Radio UnionALgranted 2022-01-05