K4MBO
Unknown1x3Zone 4
License HolderOLSON, MICHAEL B
License ClassGeneral
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredMay 1, 2026
- License RenewedMay 1, 2014
- License ModifiedFeb 28, 2006
- License IssuedApr 30, 2004
- Vanity Callsign GrantedApr 30, 2004
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.