Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4JKH callsign genealogy
Currently held by DEN BLEYKER, GARY 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 KF4JKH'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 KF4JKH.
- DEN BLEYKER, GARY AALgranted 2026-03-17