KC3KOS
Unknown2x3Zone 3
License HolderSTERNTHAL, JONATHAN W
License ClassTechnician
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- Administrative Update AppliedDec 24, 2025
- License IssuedDec 12, 2025
- Vanity Callsign GrantedDec 12, 2025
- License CanceledFeb 16, 2018
- System-Generated GrantJan 12, 2018
- License IssuedJan 12, 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.