Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0MGB callsign genealogy
Currently held by Butson, Michael G
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 N0MGB's current licensee, walking backwards.
- Butson, Michael GUTgranted 2025-04-08cancelled 2025-06-03
Successor callsigns
Callsigns held now by people who previously held N0MGB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0MGB, oldest first.
- BERNSTEIN, M JOHN CO2010-04-19 → cancelled 2022-07-19
- Butson, Michael G UT2025-06-03 active