Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4USX callsign genealogy
Currently held by Gilbert, Donald S
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 W4USX's current licensee, walking backwards.
- Gilbert, Donald SVAgranted 2016-06-17cancelled 2016-07-12
Successor callsigns
Callsigns held now by people who previously held W4USX.
No current licensee on record previously held this callsign.