Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO1R callsign genealogy
Currently held by KRAKOL, JOSEPH
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 KO1R's current licensee, walking backwards.
- Wright, Milan CMAgranted 2002-04-12cancelled 2010-09-25
Successor callsigns
Callsigns held now by people who previously held KO1R.
- KRAKOL, JOSEPHCTgranted 2007-06-23cancelled 2019-06-25
All historical holders
Every license row we've seen with the callsign KO1R, oldest first.
- KRAKOL, JOSEPH CT2007-06-02 → cancelled 2007-06-23
- Wright, Milan C MI2020-08-29 active