Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4WWW callsign genealogy
Currently held by Chambers, Chris
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 KD4WWW's current licensee, walking backwards.
- Chambers, Christopher MALgranted 2021-03-01cancelled 2023-12-01
Successor callsigns
Callsigns held now by people who previously held KD4WWW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4WWW, oldest first.
- COX, JAMES D KY1993-02-16 → cancelled 2005-02-17
- Chambers, Chris AL2023-12-01 active