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KN4FOO

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderGRAM, WARREN J

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationSALINE, MI

Grant DateAug 28, 2017

Expiration DateAug 28, 2027

Cancellation DateSep 15, 2017

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KN4FOO

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderGRAM, WARREN J

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationSALINE, MI

Grant DateAug 28, 2017

Expiration DateAug 28, 2027

Cancellation DateSep 15, 2017

Available for ApplicationsSep 16, 2019

KN4FOO is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by GRAM, WARREN J in SALINE, MI. 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 FOO, CHUAN YU on Oct 20, 2020. KN4FOO has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 42 units(Heavy (slower to send))

Voice Phonetics

Kilo November Four Foxtrot Oscar Oscar

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 CanceledSep 15, 2017
System-Generated GrantAug 28, 2017
License IssuedAug 28, 2017

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

FOO, CHUAN YUFiled Oct 20, 2020
Not awardedFCC ↗

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FCC data as of Sep 4, 2026

KN4FOO FCC Vanity Status: 1 Competing Application & History