Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4DCW callsign genealogy
Currently held by JONES, JOHN S
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 KD4DCW's current licensee, walking backwards.
- Williams, David CVAgranted 2021-05-03cancelled 2021-06-11
Successor callsigns
Callsigns held now by people who previously held KD4DCW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4DCW, oldest first.
- JONES, JOHN S FL1991-07-23 → cancelled 2003-07-24
- Williams, David C VA2021-06-11 active