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KA4FXU

Available2x3District 4

No competing applications on record.

License HolderKRATKY, CLAUDIUS H

License ClassAdvanced

Min. Class RequiredTechnician

LocationJacksonville, FL

Grant DateOct 8, 2004

Expiration DateOct 25, 2014

Cancellation DateOct 26, 2016

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KA4FXU

Available2x3District 4

No competing applications on record.

License HolderKRATKY, CLAUDIUS H

License ClassAdvanced

Min. Class RequiredTechnician

LocationJacksonville, FL

Grant DateOct 8, 2004

Expiration DateOct 25, 2014

Cancellation DateOct 26, 2016

Available for ApplicationsOct 26, 2016

KA4FXU is a 2x3 format amateur radio callsign. It is currently registered to KRATKY, CLAUDIUS H in Jacksonville, 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: 37 units(Moderate)

Voice Phonetics

Kilo Alpha Four Foxtrot X-ray Uniform

Readability: 7/10(Good readability)

This callsign is available now

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

License History

License ExpiredOct 26, 2016
FRN Association Letter SentOct 8, 2004

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.

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FCC data as of Sep 3, 2026

Is KA4FXU Available? FCC Vanity Status & Watchlist