K4SO
Unknown1x2Zone 4
License HolderKILLMON, MARK C
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
Requires Amateur Extra license or higher to apply for this callsign format (1x2).
License History
- License RenewedAug 8, 2016
- Administrative Update AppliedDec 6, 2011
- License RenewedAug 8, 2006
- Administrative Update AppliedJul 27, 2006
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.