Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4ZXD callsign genealogy
Currently held by Independence Radio Association
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 KO4ZXD'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 KO4ZXD.
- K4YXXactiveIndependence Radio AssociationKYgranted 2022-05-21