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K4MIX

Active1x3District 4

Competitive callsign — 4 applications filed with the FCC.

License HolderWilliamson, Matthew T

License ClassGeneral

Min. Class RequiredGeneral

LocationWinter Haven, FL

Grant DateJul 31, 2026

Expiration DateJul 31, 2036

K4MIX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Williamson, Matthew T in Winter Haven, FL. 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 Williamson, Matthew T on Jul 13, 2026. K4MIX has 7 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 30 units(Light (fast to send))

Voice Phonetics

Kilo Four Mike India X-ray

Readability: 8/10(High readability)

License History

Vanity Callsign GrantedJul 31, 2026
License IssuedJul 31, 2026
License ExpiredMar 7, 2026
License RenewedJan 7, 2014
Vanity Callsign GrantedJan 3, 2004
License IssuedJan 3, 2004
License CanceledFeb 29, 2000

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Williamson, Matthew TFiled Jul 13, 2026
Not awardedFCC ↗
Cantrell, Ricky DFiled Dec 15, 2003
Not awardedFCC ↗
LEMLEY, EDWARD WFiled Jan 21, 2003
Not awardedFCC ↗
TRYON, MARTIN EFiled Jul 5, 2002

Search external databases

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Explore nearby callsigns

← K4MIT K4MIZ →

FCC data as of Sep 4, 2026

Not awarded

K4MIX FCC Vanity Status: 4 Competing Applications & History