Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9RON callsign genealogy
Currently held by Warczynski, Ronald G
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 K9RON's current licensee, walking backwards.
- Warczynski, Ronald GMIgranted 2007-02-13cancelled 2008-01-01
Successor callsigns
Callsigns held now by people who previously held K9RON.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9RON, oldest first.
- WARCZYNSKI, RONALD J MI2000-02-25 → cancelled 2007-08-23
- Warczynski, Ronald G MI2017-10-05 active