K4OS
Unknown1x2Zone 4
License HolderStokes, Thomas M
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
Requires Amateur Extra license or higher to apply for this callsign format (1x2).
License History
- License RenewedMar 28, 2017
- License IssuedJun 22, 2007
- Vanity Callsign GrantedJun 22, 2007
- Internal Correction AppliedJan 12, 2007
- Internal Correction AppliedJan 12, 2007
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.