Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA6CJK callsign genealogy
Currently held by KOPCSAK, CHRISTOPHER J
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 KA6CJK's current licensee, walking backwards.
- KOPCSAK, CHRISTOPHER JCAgranted 2023-08-23cancelled 2023-09-12
Successor callsigns
Callsigns held now by people who previously held KA6CJK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA6CJK, oldest first.
- BARRETT, CECELIA M CA1998-10-05 → cancelled 2010-10-06
- KOPCSAK, CHRISTOPHER J CA2023-09-12 active