N4ZI
Unknown1x2Zone 4
License HolderMADDOCK, WILLIAM C
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
Requires Amateur Extra license or higher to apply for this callsign format (1x2).
License History
- Administrative Update AppliedJul 9, 2025
- Vanity Callsign GrantedNov 30, 2024
- License IssuedNov 30, 2024
- License CanceledNov 11, 2022
- License IssuedSep 24, 2022
- Vanity Callsign GrantedSep 24, 2022
- License CanceledSep 5, 2020
- License IssuedJun 13, 2020
- Vanity Callsign GrantedJun 13, 2020
- License CanceledMay 22, 2018
- License RenewedOct 19, 2016
- License RenewedSep 23, 2006
- Administrative Update Applied
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.