Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SDV callsign genealogy
Currently held by WINDSOR, EUGENE W
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 K4SDV's current licensee, walking backwards.
- Edwards, Anton ENCgranted 2018-08-03cancelled 2021-03-09
Successor callsigns
Callsigns held now by people who previously held K4SDV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4SDV, oldest first.
- WINDSOR, EUGENE W FL2006-01-11 → cancelled 2018-02-17
- Edwards, Anton E NC2021-03-09 active