Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4JF callsign genealogy
Currently held by Fish, Jerry R
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 KD4JF's current licensee, walking backwards.
- Fish, Jerry RKYgranted 2004-12-23cancelled 2013-09-21
Successor callsigns
Callsigns held now by people who previously held KD4JF.
- Fish, Jerry RKYgranted 2018-02-27
All historical holders
Every license row we've seen with the callsign KD4JF, oldest first.
- DAUGHERTY, KENNETH F KY1996-03-21 → cancelled 2008-03-22
- Fish, Jerry R KY2013-09-21 → cancelled 2018-02-27