Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA6KAL callsign genealogy
Currently held by KNIGHT, JOHN F
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 KA6KAL's current licensee, walking backwards.
- Koczwara, KalvinCAgranted 2018-06-05cancelled 2018-06-30
Successor callsigns
Callsigns held now by people who previously held KA6KAL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA6KAL, oldest first.
- KNIGHT, JOHN F CA1995-12-08 → cancelled 2007-12-11
- Koczwara, Kalvin CA2018-06-30 active