Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4HAM callsign genealogy
Currently held by Hopkins, Ronald
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 KK4HAM's current licensee, walking backwards.
- Hopkins, RonaldFLgranted 2024-03-19cancelled 2024-04-20
Successor callsigns
Callsigns held now by people who previously held KK4HAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4HAM, oldest first.
- Brown, James E FL2009-11-24 → cancelled 2021-11-25
- Hopkins, Ronald FL2024-04-20 active