KO4YDO
Unknown2x3Zone 4
License HolderVander Bloomen, Mark J
License ClassTechnician
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- Administrative Update AppliedSep 27, 2025
- Administrative Update AppliedFeb 24, 2024
- Administrative Update AppliedFeb 24, 2024
- System-Generated GrantFeb 28, 2022
- License IssuedFeb 28, 2022
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.