Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4COX callsign genealogy
Currently held by COX, JIMMIE 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 K4COX's current licensee, walking backwards.
- Cox, Jimmie DKYgranted 2002-02-26cancelled 2006-08-02
Successor callsigns
Callsigns held now by people who previously held K4COX.
- Cox, Robert JVAgranted 2012-12-08cancelled 2025-02-26
All historical holders
Every license row we've seen with the callsign K4COX, oldest first.
- COX, ROBERT J VA2000-06-27 → cancelled 2003-02-25
- COX, JIMMIE D KY2026-05-27 active