Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0BWZ callsign genealogy
Currently held by PLAIN, ALVIN A
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 K0BWZ's current licensee, walking backwards.
- MENGES, BRIAN MCOgranted 2022-05-24cancelled 2023-01-14
Successor callsigns
Callsigns held now by people who previously held K0BWZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BWZ, oldest first.
- PLAIN, ALVIN A ND1987-10-06 → cancelled 1999-10-07
- MENGES, BRIAN M CO2023-01-14 active