Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4RSG callsign genealogy
Currently held by Dunn, Jimmie
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 KM4RSG's current licensee, walking backwards.
- Goodbar, Roger SNCgranted 2015-07-24cancelled 2018-09-28
Successor callsigns
Callsigns held now by people who previously held KM4RSG.
- Dunn, Jimmie CALgranted 2026-08-11
All historical holders
Every license row we've seen with the callsign KM4RSG, oldest first.
- Dunn, Jimmie AL2016-03-01 → cancelled 2016-09-07
- Goodbar, Roger S NC2018-09-28 active