Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WX4MSB callsign genealogy
Currently held by BROOKS, MARK 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 WX4MSB's current licensee, walking backwards.
- Brooks, Mark SNCgranted 1999-08-26cancelled 1999-11-04
Successor callsigns
Callsigns held now by people who previously held WX4MSB.
No current licensee on record previously held this callsign.