CFCallsignFinder

Search Watchlist

Track FCC amateur radio vanity callsign availability. Data updated daily.

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

© 2026 CallsignFinder. All rights reserved.

FCC data sourced from FCC Universal Licensing System. Not affiliated with the FCC.

Watchlist Search Account

Home/Search/KO4UZI

← Back to results

KO4UZI

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderSTURM, GARY L

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationLEO, IN

Grant DateNov 23, 2021

Expiration DateNov 23, 2031

KO4UZI is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by STURM, GARY L in LEO, IN. 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 Feuerriegel, Richard F on Oct 20, 2021. KO4UZI has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 38 units(Moderate)

Voice Phonetics

Kilo Oscar Four Uniform Zulu India

Readability: 6.5/10(Good readability)

License History

Administrative Update AppliedSep 7, 2022
License ModifiedMar 8, 2022
License ModifiedDec 10, 2021
System-Generated GrantNov 23, 2021
License IssuedNov 23, 2021

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Feuerriegel, Richard FFiled Oct 20, 2021
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KO4UZH KO4UZJ →

FCC data as of Sep 4, 2026

KO4UZI FCC Vanity Status: 1 Competing Application & History