Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W4VYX callsign genealogy
Currently held by Halliwell, William J
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 W4VYX's current licensee, walking backwards.
- Halliwell, William JFLgranted 2004-05-25cancelled 2004-07-16
Successor callsigns
Callsigns held now by people who previously held W4VYX.
No current licensee on record previously held this callsign.