KN4OUO
Unknown2x3Zone 4
License HolderSpengler, Daniel P
License ClassTechnician
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- Administrative Update AppliedAug 26, 2025
- System-Generated GrantSep 5, 2018
- License IssuedSep 5, 2018
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.