K4WSX
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderBatista, Mario
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationSebastian, FL
Grant DateApr 20, 2021
Expiration DateApr 20, 2031
K4WSX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Batista, Mario in Sebastian, FL. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Wesley, Whaley A on Sep 24, 2026. K4WSX has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .-- ... -..-
CW Weight: 32 units(Moderate)
Voice Phonetics
Kilo Four Whiskey Sierra X-ray
Readability: 7.5/10(High readability)
License History
- License ModifiedOct 20, 2023
- License IssuedApr 20, 2021
- Vanity Callsign GrantedApr 20, 2021
Vanity Application Activity
Competing applications filed with the FCC for this callsign.