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KK4USS

Available2x3District 4

No competing applications on record.

License HolderZadarnowski, Kezysztof

License ClassTechnician

Min. Class RequiredTechnician

LocationStuart, FL

Grant DateOct 30, 2013

Expiration DateMar 5, 2024

Cancellation DateMay 7, 2026

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KK4USS

Available2x3District 4

No competing applications on record.

License HolderZadarnowski, Kezysztof

License ClassTechnician

Min. Class RequiredTechnician

LocationStuart, FL

Grant DateOct 30, 2013

Expiration DateMar 5, 2024

Cancellation DateMay 7, 2026

Available for ApplicationsMar 6, 2026

KK4USS is a 2x3 format amateur radio callsign. It is currently registered to Zadarnowski, Kezysztof in Stuart, FL. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

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

CW Weight: 32 units(Moderate)

Voice Phonetics

Kilo Kilo Four Uniform Sierra Sierra

Readability: 6/10(Good readability)

This callsign is available now

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

License History

License ExpiredMay 7, 2026
System-Generated GrantOct 30, 2013
License IssuedOct 30, 2013

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

Search external databases

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← KK4USR KK4UST →

FCC data as of Jul 31, 2026

Is KK4USS Available? FCC Vanity Status & Watchlist