KF6DUU
Unknown2x3Zone 7
License HolderYOON, JONGSOO D
License ClassGeneral
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- Administrative Update AppliedFeb 3, 2026
- Administrative Update AppliedFeb 3, 2026
- License RenewedAug 23, 2016
- License RenewedNov 18, 2006
- Administrative Update AppliedAug 21, 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.