Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4WSB callsign genealogy
Currently held by WARNOCK, JIM D
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 KJ4WSB's current licensee, walking backwards.
- WARNOCK, JIM DGAgranted 2010-01-14cancelled 2010-08-02
Successor callsigns
Callsigns held now by people who previously held KJ4WSB.
No current licensee on record previously held this callsign.