Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1MBZ callsign genealogy
Currently held by BISBANO SR, MICHAEL J
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 W1MBZ's current licensee, walking backwards.
- BISBANO SR, MICHAEL JRIgranted 2010-02-02cancelled 2018-06-26
Successor callsigns
Callsigns held now by people who previously held W1MBZ.
No current licensee on record previously held this callsign.