K5MMO
Unknown1x3Zone 5
License HolderDU BOIS, RALPH M
License ClassAdvanced
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledJun 24, 2025
- Administrative Update AppliedJan 22, 2025
- Administrative Update AppliedFeb 15, 2019
- License RenewedDec 28, 2018
- Administrative Update AppliedNov 30, 2018
- Vanity Callsign GrantedMar 10, 2009
- License IssuedMar 10, 2009
- License CanceledJan 19, 2006
- FRN Association Letter SentDec 29, 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.