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KO4UIN

Cancelled2x3District 4

No competing applications on record.

License HolderHolman, John

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationCanton, GA

Grant DateOct 28, 2021

Cancellation DateFeb 19, 2025

Available for ApplicationsFeb 20, 2027

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KO4UIN

Cancelled2x3District 4

No competing applications on record.

License HolderHolman, John

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationCanton, GA

Grant DateOct 28, 2021

Cancellation DateFeb 19, 2025

Available for ApplicationsFeb 20, 2027

KO4UIN is a 2x3 format amateur radio callsign. It is currently registered to Holman, John in Canton, GA. 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: 34 units(Moderate)

Voice Phonetics

Kilo Oscar Four Uniform India November

Readability: 6/10(Good readability)

Available Feb 20, 2027 (168 days remaining)

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

License History

License CanceledFeb 19, 2025
License ModifiedFeb 19, 2025
License ModifiedJan 14, 2025
System-Generated GrantOct 28, 2021
License IssuedOct 28, 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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FCC data as of Sep 4, 2026

Is KO4UIN Available? FCC Vanity Status & Watchlist