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K4JKU

Active1x3District 4

Competitive callsign — 4 applications filed with the FCC.

License HolderBlair, Brian C

License ClassTechnician

Min. Class RequiredGeneral

LocationTuscon, AZ

Grant DateJun 27, 2017

Expiration DateJun 27, 2027

K4JKU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Blair, Brian C in Tuscon, AZ. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Overton, William L on Mar 21, 2018. K4JKU has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 36 units(Moderate)

Voice Phonetics

Kilo Four Juliet Kilo Uniform

Readability: 7/10(Good readability)

License History

Administrative Update AppliedAug 29, 2018
License IssuedJun 27, 2017
Vanity Callsign GrantedJun 27, 2017

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Overton, William LFiled Mar 21, 2018
Not awardedFCC ↗
Ashba, RayFiled Sep 12, 2017
Not awardedFCC ↗
Blair, Brian CFiled Jun 8, 2017
Not awardedFCC ↗
WAGER, DAVID DFiled May 13, 2009

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Explore nearby callsigns

← K4JKT K4JKV →

FCC data as of Sep 4, 2026

Not awarded

K4JKU FCC Vanity Status: 4 Competing Applications & History