K4MTB
Unknown1x3Zone 4
License HolderBROWN, MICHAEL T
License ClassTechnician
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedDec 20, 2025
- Administrative Update AppliedDec 6, 2024
- Administrative Update AppliedDec 2, 2021
- Administrative Update AppliedFeb 16, 2019
- License IssuedFeb 17, 2016
- Vanity Callsign GrantedFeb 17, 2016
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.