K0SZ
Active1x2District 0
Competitive callsign — 7 applications filed with the FCC.
License HolderJohnson, Darren
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationElkhorn, NE
Grant DateOct 20, 2026
Expiration DateOct 20, 2036
K0SZ is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Johnson, Darren in Elkhorn, NE. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by Sell, Joseph E on Sep 9, 2016. K0SZ has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----- ... --..
CW Weight: 33 units(Moderate)
Voice Phonetics
Kilo Zero Sierra Zulu
Readability: 7.5/10(High readability)
License History
- License RenewedOct 20, 2026
- Administrative Update AppliedFeb 13, 2024
- Vanity Callsign GrantedAug 27, 2016
- License IssuedAug 27, 2016
- Internal Correction AppliedAug 9, 2016
- Internal Correction AppliedAug 9, 2016
- License RenewedJan 5, 2007
- Tax ID (TIN) AddedJan 3, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.