Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TAX callsign genealogy
Currently held by Matson, Gregory 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 W4TAX's current licensee, walking backwards.
- Matson, Gregory SVAgranted 2004-01-15cancelled 2004-02-03
Successor callsigns
Callsigns held now by people who previously held W4TAX.
No current licensee on record previously held this callsign.