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KC0STY

Expired2x3District 0

Competitive callsign — 1 application filed with the FCC.

License HolderWilburn, Brian L

License ClassTechnician

Min. Class RequiredTechnician

LocationBoulder, CO

Grant DateSep 13, 2014

Expiration DateSep 13, 2024

Available for ApplicationsSep 14, 2026

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KC0STY

Expired2x3District 0

Competitive callsign — 1 application filed with the FCC.

License HolderWilburn, Brian L

License ClassTechnician

Min. Class RequiredTechnician

LocationBoulder, CO

Grant DateSep 13, 2014

Expiration DateSep 13, 2024

Available for ApplicationsSep 14, 2026

KC0STY is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Wilburn, Brian L in Boulder, CO. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Cleveland, Cristy I on May 25, 2016. KC0STY has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 46 units(Heavy (slower to send))

Voice Phonetics

Kilo Charlie Zero Sierra Tango Yankee

Readability: 6.5/10(Good readability)

Available Sep 14, 2026 (11 days remaining)

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

License History

License RenewedSep 13, 2014
License IssuedJul 13, 2004

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Cleveland, Cristy IFiled May 25, 2016
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

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← KC0STX KC0STZ →

FCC data as of Sep 3, 2026

KC0STY FCC Vanity Status: 1 Competing Application & History