K5ZSI
Unknown1x3Zone 5
License HolderMONTGOMERY, WILLIAM E
License ClassAmateur Extra
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedApr 2, 2026
- License RenewedJun 17, 2016
- Administrative Update AppliedNov 22, 2006
- License RenewedApr 21, 2006
- Tax ID (TIN) AddedApr 20, 2006
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.