Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NR0N callsign genealogy
Currently held by CHRISOPE, THOMAS R
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 NR0N's current licensee, walking backwards.
- Mikulecky, Ronald PMOgranted 2018-03-02cancelled 2022-12-06
Successor callsigns
Callsigns held now by people who previously held NR0N.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NR0N, oldest first.
- CHRISOPE, THOMAS R MN2010-10-23 → cancelled 2022-11-15
- Mikulecky, Ronald P MO2022-12-06 active