Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4FC callsign genealogy
Currently held by WINANS, ROBERT
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 KF4FC's current licensee, walking backwards.
- Castello, Fred MVAgranted 2015-10-14cancelled 2016-01-05
Successor callsigns
Callsigns held now by people who previously held KF4FC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4FC, oldest first.
- WINANS, ROBERT FL1988-05-10 → cancelled 2000-05-11
- Castello, Fred M VA2026-01-21 active