Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS0JAK callsign genealogy
Currently held by Kozak, James
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 KS0JAK's current licensee, walking backwards.
- Kozak, JamesKSgranted 2026-02-11cancelled 2026-03-10
Successor callsigns
Callsigns held now by people who previously held KS0JAK.
No current licensee on record previously held this callsign.