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KC4ZBK

Active2x3Zone 4

License HolderMayo, Ralph D

License ClassAmateur Extra

Min. Class RequiredTechnician

Grant DateAug 6, 2021

Expiration DateAug 6, 2031

License History

License RenewedAug 6, 2021
License RenewedMay 9, 2011
Tax ID (TIN) AddedJun 29, 2001
License RenewedJun 29, 2001

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.

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FCC data as of Jun 12, 2026 — may be delayed

KC4ZBK — CallsignFinder.com