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KO4TDH

Available2x3District 4

No competing applications on record.

License HolderSewell, D Richard

License ClassTechnician

Min. Class RequiredTechnician

LocationLong Beach, CA

Grant DateSep 10, 2021

Expiration DateSep 10, 2031

Cancellation DateOct 8, 2021

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KO4TDH

Available2x3District 4

No competing applications on record.

License HolderSewell, D Richard

License ClassTechnician

Min. Class RequiredTechnician

LocationLong Beach, CA

Grant DateSep 10, 2021

Expiration DateSep 10, 2031

Cancellation DateOct 8, 2021

Available for ApplicationsOct 9, 2023

KO4TDH is a 2x3 format amateur radio callsign. It is currently registered to Sewell, D Richard in Long Beach, 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: 35 units(Moderate)

Voice Phonetics

Kilo Oscar Four Tango Delta Hotel

Readability: 7.5/10(High readability)

This callsign is available now

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

License History

License CanceledOct 8, 2021
System-Generated GrantSep 10, 2021
License IssuedSep 10, 2021

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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← KO4TDG KO4TDI →

FCC data as of Jul 10, 2026

Is KO4TDH Available? FCC Vanity Status & Watchlist