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KC4QOO

Available2x3District 4

No competing applications on record.

License HolderMc Master, William N

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationPort Saint Lucie, FL

Grant DateMay 15, 1990

Expiration DateMay 15, 2000

Cancellation DateMay 16, 2002

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KC4QOO

Available2x3District 4

No competing applications on record.

License HolderMc Master, William N

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationPort Saint Lucie, FL

Grant DateMay 15, 1990

Expiration DateMay 15, 2000

Cancellation DateMay 16, 2002

Available for ApplicationsMay 16, 2002

KC4QOO is a 2x3 format amateur radio callsign. It is currently registered to Mc Master, William N in Port Saint Lucie, FL. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

-.- -.-. ....- --.- --- ---

CW Weight: 50 units(Heavy (slower to send))

Voice Phonetics

Kilo Charlie Four Quebec Oscar Oscar

Readability: 7.5/10(High readability)

This callsign is available now

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License ExpiredMay 16, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

Search external databases

QRZ ↗HamQTH ↗

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FCC data as of Sep 15, 2026

Is KC4QOO Available? FCC Vanity Status & Watchlist