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KM4NFO

Expired2x3District 4

No competing applications on record.

License HolderDuffield, John A

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationElizabeth, CO

Grant DateSep 14, 2015

Expiration DateSep 14, 2025

Available for ApplicationsSep 15, 2027

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KM4NFO

Expired2x3District 4

No competing applications on record.

License HolderDuffield, John A

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationElizabeth, CO

Grant DateSep 14, 2015

Expiration DateSep 14, 2025

Available for ApplicationsSep 15, 2027

KM4NFO is a 2x3 format amateur radio callsign. It is currently registered to Duffield, John A in Elizabeth, CO. 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: 39 units(Moderate)

Voice Phonetics

Kilo Mike Four November Foxtrot Oscar

Readability: 7.5/10(High readability)

Available Sep 15, 2027 (412 days remaining)

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

License History

License ModifiedAug 8, 2016
System-Generated GrantSep 14, 2015
License IssuedSep 14, 2015

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 Jul 30, 2026

Is KM4NFO Available? FCC Vanity Status & Watchlist