Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4JWC callsign genealogy
Currently held by CAMPBELL, JOHN W
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 KD4JWC's current licensee, walking backwards.
- CAMPBELL, JOHN WSCgranted 2015-07-20cancelled 2015-08-08
Successor callsigns
Callsigns held now by people who previously held KD4JWC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4JWC, oldest first.
- LYONS, GEORGE A KY1992-02-04 → cancelled 2004-02-05
- CAMPBELL, JOHN W SC2025-05-16 active