Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4DFE callsign genealogy
Currently held by ESTILL, DOUGLAS F
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 KY4DFE's current licensee, walking backwards.
- Estill, Douglas FKYgranted 2021-10-06cancelled 2022-03-12
Successor callsigns
Callsigns held now by people who previously held KY4DFE.
No current licensee on record previously held this callsign.