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KK4YBR

Available2x3District 4

No competing applications on record.

License HolderWILLIAMSON, MARK G

License ClassTechnician

Min. Class RequiredTechnician

LocationCOLUMBIA, SC

Grant DateFeb 10, 2014

Expiration DateFeb 10, 2024

Cancellation DateMay 10, 2016

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KK4YBR

Available2x3District 4

No competing applications on record.

License HolderWILLIAMSON, MARK G

License ClassTechnician

Min. Class RequiredTechnician

LocationCOLUMBIA, SC

Grant DateFeb 10, 2014

Expiration DateFeb 10, 2024

Cancellation DateMay 10, 2016

Available for ApplicationsMay 11, 2018

KK4YBR is a 2x3 format amateur radio callsign. It is currently registered to WILLIAMSON, MARK G in COLUMBIA, SC. 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 Kilo Four Yankee Bravo Romeo

Readability: 7/10(Good readability)

This callsign is available now

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

License History

License CanceledMay 10, 2016
Administrative Update AppliedFeb 13, 2014
System-Generated GrantFeb 10, 2014
License IssuedFeb 10, 2014

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 ↗

Explore nearby callsigns

← KK4YBQ KK4YBS →

FCC data as of Jul 31, 2026

Is KK4YBR Available? FCC Vanity Status & Watchlist