Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4RMM callsign genealogy
Currently held by RED MOUNTAIN MAKERS ARC
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 KK4RMM's current licensee, walking backwards.
- KO4ZTTcancelledRED MOUNTAIN MAKERS ARCALgranted 2022-04-15cancelled 2022-05-03
Successor callsigns
Callsigns held now by people who previously held KK4RMM.
- Wrona, Stephen JSCgranted 2018-12-07
All historical holders
Every license row we've seen with the callsign KK4RMM, oldest first.
- Wrona, Stephen J NC2013-05-28 → cancelled 2018-12-07
- RED MOUNTAIN MAKERS ARC AL2022-05-03 active