Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC0OJK callsign genealogy
Currently held by Dyrek, Jack A
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 KC0OJK's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC0OJK.
- Dyrek, Jack AFLgranted 2013-03-22cancelled 2024-12-04