Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR0R callsign genealogy
Currently held by MUHIC, JOHN M
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 KR0R's current licensee, walking backwards.
- Schooley, Christopher LCOgranted 2024-01-03cancelled 2024-04-12
Successor callsigns
Callsigns held now by people who previously held KR0R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR0R, oldest first.
- MUHIC, JOHN M CO2012-01-24 → cancelled 2024-03-26
- Schooley, Christopher L CO2024-04-12 active