Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WX4MAT callsign genealogy
Currently held by GRANTHAM, MATTHEW L
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 WX4MAT's current licensee, walking backwards.
- Grantham, Matthew LALgranted 2005-02-22cancelled 2005-03-29
Successor callsigns
Callsigns held now by people who previously held WX4MAT.
No current licensee on record previously held this callsign.