Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FE callsign genealogy
Currently held by Knisley, David J
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 K4FE's current licensee, walking backwards.
- Knisley, David JFLgranted 2026-01-08cancelled 2026-04-17
Successor callsigns
Callsigns held now by people who previously held K4FE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4FE, oldest first.
- Giroux, Joseph A VA2014-01-10 → cancelled 2026-03-31
- Knisley, David J FL2026-04-17 active