Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO3KOZ callsign genealogy
Currently held by Kozelisky, Jarrett L
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 KO3KOZ's current licensee, walking backwards.
- Kozelisky, Jarrett LWAgranted 2018-03-13cancelled 2018-03-31
Successor callsigns
Callsigns held now by people who previously held KO3KOZ.
No current licensee on record previously held this callsign.