Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7MBW callsign genealogy
Currently held by Williams, Marc B
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 W7MBW's current licensee, walking backwards.
- Williams, Marc BWAgranted 2013-05-17cancelled 2013-06-18
Successor callsigns
Callsigns held now by people who previously held W7MBW.
No current licensee on record previously held this callsign.