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K0SUX

Active1x3District 0

Competitive callsign — 1 application filed with the FCC.

License HolderFrank, Matthew J

License ClassGeneral

Min. Class RequiredGeneral

LocationSioux City, IA

Grant DateNov 4, 2022

Expiration DateNov 20, 2032

K0SUX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Frank, Matthew J in Sioux City, IA. 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 Frank, Matthew J on Nov 2, 2012. K0SUX has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 38 units(Moderate)

Voice Phonetics

Kilo Zero Sierra Uniform X-ray

Readability: 6.5/10(Good readability)

License History

License RenewedNov 4, 2022
License IssuedNov 20, 2012
Vanity Callsign GrantedNov 20, 2012

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Frank, Matthew JFiled Nov 2, 2012
Not awardedFCC ↗

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FCC data as of Sep 4, 2026

K0SUX FCC Vanity Status: 1 Competing Application & History