AK4DU
Unknown2x2Zone 4
License HolderSIERRA JR, ALBERTO
License ClassAmateur Extra
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredDec 1, 2022
- System-Generated GrantNov 30, 2010
- License IssuedNov 30, 2010
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.