Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4RR callsign genealogy
Currently held by OWEN, JOE 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 KO4RR's current licensee, walking backwards.
- OWEN, JOE MHIgranted 2012-09-04cancelled 2017-12-23
Successor callsigns
Callsigns held now by people who previously held KO4RR.
- OWEN, JOE MHIgranted 2012-09-04cancelled 2017-12-23
All historical holders
Every license row we've seen with the callsign KO4RR, oldest first.
- OWEN, JOE M HI2012-01-06 → cancelled 2012-09-04
- OWEN, JOE M GA2017-12-23 active