Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3MBX callsign genealogy
Currently held by Marshall, Matthew 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 W3MBX's current licensee, walking backwards.
- Marshall, Matthew SILgranted 2022-08-04cancelled 2022-08-30
Successor callsigns
Callsigns held now by people who previously held W3MBX.
No current licensee on record previously held this callsign.