KU4SF
Unknown2x2Zone 4
License HolderDIEKEN, JOHN M
License ClassAmateur Extra
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredApr 21, 2020
- License RenewedFeb 16, 2008
- Administrative Update AppliedMar 24, 2005
- FRN Association Letter SentMar 24, 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.