KO4N
Unknown2x1Zone 4
License HolderUnderwood, David D
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
Requires Amateur Extra license or higher to apply for this callsign format (2x1).
License History
- License RenewedOct 15, 2022
- Administrative Update AppliedOct 6, 2022
- Administrative Update AppliedSep 4, 2019
- License IssuedDec 7, 2012
- Vanity Callsign GrantedDec 7, 2012
- License CanceledNov 16, 2010
- Administrative Update AppliedJul 1, 2008
- License IssuedJun 13, 2006
- Vanity Callsign GrantedJun 13, 2006
- License ExpiredMay 25, 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.