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.