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KA4DTU

Available2x3District 4

No competing applications on record.

License HolderO DONNELL, SEAN M

License ClassTechnician

Min. Class RequiredTechnician

LocationMODESTO, CA

Grant DateMay 16, 1996

Expiration DateMay 16, 2006

Cancellation DateMay 17, 2008

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KA4DTU

Available2x3District 4

No competing applications on record.

License HolderO DONNELL, SEAN M

License ClassTechnician

Min. Class RequiredTechnician

LocationMODESTO, CA

Grant DateMay 16, 1996

Expiration DateMay 16, 2006

Cancellation DateMay 17, 2008

Available for ApplicationsMay 17, 2008

KA4DTU is a 2x3 format amateur radio callsign. It is currently registered to O DONNELL, SEAN M in MODESTO, CA. 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: 31 units(Moderate)

Voice Phonetics

Kilo Alpha Four Delta Tango 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 ExpiredMay 17, 2008

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 KA4DTU Available? FCC Vanity Status & Watchlist