KO4OZN
Unknown2x3Zone 4
License HolderYu, Yong R
License ClassTechnician
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledAug 5, 2022
- License ModifiedJun 28, 2022
- Administrative Update AppliedSep 21, 2021
- License ModifiedJun 28, 2021
- System-Generated GrantApr 2, 2021
- License IssuedApr 2, 2021
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.