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KC4KOO

Available2x3District 4

No competing applications on record.

License HolderWarren, Melvin L

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationFredericksburg, TX

Grant DateDec 23, 2003

Expiration DateDec 23, 2013

Cancellation DateDec 24, 2015

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KC4KOO

Available2x3District 4

No competing applications on record.

License HolderWarren, Melvin L

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationFredericksburg, TX

Grant DateDec 23, 2003

Expiration DateDec 23, 2013

Cancellation DateDec 24, 2015

Available for ApplicationsDec 24, 2015

KC4KOO is a 2x3 format amateur radio callsign. It is currently registered to Warren, Melvin L in Fredericksburg, TX. 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: 47 units(Heavy (slower to send))

Voice Phonetics

Kilo Charlie Four Kilo 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 ExpiredDec 24, 2015
Administrative Update AppliedDec 30, 2003

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.

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FCC data as of Sep 15, 2026

Is KC4KOO Available? FCC Vanity Status & Watchlist