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KO6DUF

Available2x3District 6

Competitive callsign — 1 application filed with the FCC.

License HolderZarnegar, Niyusha A

License ClassTechnician

Min. Class RequiredTechnician

LocationGlendora, CA

Grant DateMar 13, 2024

Expiration DateMar 13, 2034

Cancellation DateApr 2, 2024

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KO6DUF

Available2x3District 6

Competitive callsign — 1 application filed with the FCC.

License HolderZarnegar, Niyusha A

License ClassTechnician

Min. Class RequiredTechnician

LocationGlendora, CA

Grant DateMar 13, 2024

Expiration DateMar 13, 2034

Cancellation DateApr 2, 2024

Available for ApplicationsApr 3, 2026

KO6DUF is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Zarnegar, Niyusha A in Glendora, CA. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Duffy, Kevin on Dec 31, 2025. KO6DUF has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 39 units(Moderate)

Voice Phonetics

Kilo Oscar Six Delta Uniform Foxtrot

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 CanceledApr 2, 2024
System-Generated GrantMar 13, 2024
License IssuedMar 13, 2024

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Duffy, KevinFiled Dec 31, 2025
DismissedFCC ↗

Search external databases

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← KO6DUE KO6DUG →

FCC data as of Jul 10, 2026

KO6DUF FCC Vanity Status: 1 Competing Application & History