Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB1WM callsign genealogy
Currently held by McManus, Brent W
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 WB1WM's current licensee, walking backwards.
- McManus, Brent WMAgranted 2020-12-09cancelled 2021-03-30
Successor callsigns
Callsigns held now by people who previously held WB1WM.
No current licensee on record previously held this callsign.