Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4DX callsign genealogy
Currently held by Behle, Egon
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 KF4DX's current licensee, walking backwards.
- Behle, EgonFLgranted 2016-01-15cancelled 2016-03-22
Successor callsigns
Callsigns held now by people who previously held KF4DX.
- EDWARDS, DARRELL KNCgranted 2023-01-27
All historical holders
Every license row we've seen with the callsign KF4DX, oldest first.
- EDWARDS, DARRELL K NC2008-08-22 → cancelled 2012-07-24
- Behle, Egon FL2026-01-14 active