KJ4DIY
Unknown2x3Zone 4
License HolderWitzenburger, Howard J
License ClassTechnician
Min. Class RequiredTechnician
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License RenewedAug 19, 2025
- License ModifiedJan 28, 2025
- Administrative Update AppliedDec 24, 2024
- Administrative Update AppliedSep 7, 2022
- Administrative Update AppliedJun 1, 2020
- Administrative Update AppliedMay 15, 2018
- Vanity Callsign GrantedOct 16, 2015
- License IssuedOct 16, 2015
- License CanceledMar 3, 2009
- License ModifiedJul 8, 2008
- License ModifiedMay 14, 2008
- System-Generated GrantApr 16, 2008
- License Issued
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.