Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4MRG callsign genealogy
Currently held by SIMMONS III, WINNIFORD A
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 KK4MRG's current licensee, walking backwards.
- SIMMONS III, WINNIFORD ASCgranted 2022-12-30cancelled 2023-02-10
Successor callsigns
Callsigns held now by people who previously held KK4MRG.
- SIMMONS III, WINNIFORD ASCgranted 2022-12-30cancelled 2023-02-10
All historical holders
Every license row we've seen with the callsign KK4MRG, oldest first.
- SIMMONS III, WINNIFORD A SC2022-08-27 → cancelled 2022-12-30
- SIMMONS III, WINNIFORD A SC2023-02-10 active