N1GMB
Active1x3District 1
Competitive callsign — 3 applications filed with the FCC.
License HolderButterfield, Glenn M
License ClassGeneral
Min. Class RequiredGeneral
LocationWest Warwick, RI
Grant DateMay 5, 2026
Expiration DateJun 18, 2036
N1GMB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Butterfield, Glenn M in West Warwick, RI. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Butterfield, Glenn M on May 31, 2016. N1GMB has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. .---- --. -- -...
CW Weight: 36 units(Moderate)
Voice Phonetics
November One Golf Mike Bravo
Readability: 8.5/10(High readability)
License History
- License RenewedMay 5, 2026
- Administrative Update AppliedApr 14, 2021
- License IssuedJun 18, 2016
- Vanity Callsign GrantedJun 18, 2016
- License ExpiredMay 25, 2016
- License ModifiedAug 10, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.