Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DUN callsign genealogy
Currently held by Duncan, Donnie R
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 W4DUN's current licensee, walking backwards.
- Duncan, Donnie RTNgranted 2016-07-18cancelled 2016-08-13
Successor callsigns
Callsigns held now by people who previously held W4DUN.
No current licensee on record previously held this callsign.