Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4NC callsign genealogy
Currently held by Winfree, David M
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 WD4NC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WD4NC.
No current licensee on record previously held this callsign.