K4YHN
Unknown1x3Zone 4
License HolderSullivan, John J
License ClassAmateur Extra
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredJul 24, 2021
- License RenewedJun 11, 2009
- License ModifiedMar 13, 2007
- FRN Association Email SentMar 7, 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.