NB4I
Active2x1District 4
Competitive callsign — 1 application filed with the FCC.
License HolderCALLAHAN, MICHAEL D
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationAtlanta, GA
Grant DateApr 25, 2026
Expiration DateApr 25, 2036
NB4I is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by CALLAHAN, MICHAEL D in Atlanta, GA. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by STILL, TERRY F on Oct 4, 2019. NB4I has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. -... ....- ..
CW Weight: 19 units(Ultra-light (very fast to send))
Voice Phonetics
November Bravo Four India
Readability: 7.5/10(High readability)
License History
- License RenewedApr 25, 2026
- License RenewedSep 21, 2015
- Tax ID (TIN) AddedSep 8, 2005
- License RenewedSep 8, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- STILL, TERRY FFiled Oct 4, 2019Not awardedFCC ↗