NB4I
Unknown2x1Zone 4
License HolderCALLAHAN, MICHAEL D
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
Requires Amateur Extra license or higher to apply for this callsign format (2x1).
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.
No competing applications detected. Monitor the FCC ULS application search to verify before filing.