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K0STI

Available1x3District 0

Competitive callsign — 1 application filed with the FCC.

License HolderBENNER, JON E

License ClassAdvanced

Min. Class RequiredGeneral

LocationWestminster, CO

Grant DateOct 22, 2013

Expiration DateMar 5, 2024

Cancellation DateMar 6, 2026

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K0STI

Available1x3District 0

Competitive callsign — 1 application filed with the FCC.

License HolderBENNER, JON E

License ClassAdvanced

Min. Class RequiredGeneral

LocationWestminster, CO

Grant DateOct 22, 2013

Expiration DateMar 5, 2024

Cancellation DateMar 6, 2026

Available for ApplicationsMar 6, 2026

K0STI is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by BENNER, JON E in Westminster, 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 Schmitzer, Thomas on Aug 25, 2006. K0STI has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 30 units(Light (fast to send))

Voice Phonetics

Kilo Zero Sierra Tango India

Readability: 6.5/10(Good readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (1x3).

License History

License ExpiredMar 6, 2026
License RenewedOct 22, 2013
License RenewedSep 24, 2003
License ModifiedJun 4, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Schmitzer, ThomasFiled Aug 25, 2006
Not awardedFCC ↗

Search external databases

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← K0STH K0STJ →

FCC data as of Sep 3, 2026

K0STI FCC Vanity Status: 1 Competing Application & History