K4KO
Unknown1x2Zone 7
License HolderFolkerts, Herman L
License ClassGeneral
Min. Class RequiredAmateur Extra
Requires Amateur Extra license or higher to apply for this callsign format (1x2).
License History
- Administrative Update AppliedJun 3, 2025
- License RenewedDec 12, 2023
- License RenewedDec 10, 2013
- License IssuedMar 6, 2004
- Vanity Callsign GrantedMar 6, 2004
- Internal Correction AppliedFeb 27, 2004
- Internal Correction AppliedFeb 27, 2004
- Administrative Update AppliedApr 4, 2001
- Tax ID (TIN) AddedApr 4, 2001
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.