Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8MB callsign genealogy
Currently held by QCWA CH 215 RADIO CLUB
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 W8MB's current licensee, walking backwards.
- BEST, WILLIAM RMOgranted 2020-08-14cancelled 2026-07-07
Successor callsigns
Callsigns held now by people who previously held W8MB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8MB, oldest first.
- QCWA CH 215 RADIO CLUB MI2014-05-20 → cancelled 2026-06-16
- BEST, WILLIAM R MO2026-07-07 active