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KC4DFO

Available2x3District 4

No competing applications on record.

License HolderTooley, William O

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationLouisville, KY

Grant DateFeb 2, 1988

Expiration DateFeb 2, 1998

Cancellation DateFeb 3, 2000

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KC4DFO

Available2x3District 4

No competing applications on record.

License HolderTooley, William O

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationLouisville, KY

Grant DateFeb 2, 1988

Expiration DateFeb 2, 1998

Cancellation DateFeb 3, 2000

Available for ApplicationsFeb 3, 2000

KC4DFO is a 2x3 format amateur radio callsign. It is currently registered to Tooley, William O in Louisville, KY. 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: 42 units(Heavy (slower to send))

Voice Phonetics

Kilo Charlie Four Delta Foxtrot 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 ExpiredFeb 3, 2000

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

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← KC4DFN KC4DFP →

FCC data as of Sep 15, 2026

Is KC4DFO Available? FCC Vanity Status & Watchlist