Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9AAR callsign genealogy
Currently held by OPRISKO SR, GEORGE W
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 K9AAR's current licensee, walking backwards.
- Raufman, AaronCOgranted 2018-10-22cancelled 2020-10-09
Successor callsigns
Callsigns held now by people who previously held K9AAR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9AAR, oldest first.
- OPRISKO SR, GEORGE W IN1987-08-18 → cancelled 1999-08-20
- RICHARDSON, JAMES A WI2006-01-10 → cancelled 2018-01-11
- RAUFMAN, AARON C CO2020-10-09 active