K4CSO
Unknown1x3Zone 4
License HolderOSBORNE, CHARLES S
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedMay 12, 2020
- Administrative Update AppliedMay 10, 2019
- Administrative Update AppliedJul 6, 2017
- License RenewedMay 26, 2010
- Administrative Update AppliedAug 23, 2007
- License IssuedJun 17, 2000
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.