K5STX
Active1x3District 5
Competitive callsign — 5 applications filed with the FCC.
License HolderUpton, Louis R
License ClassGeneral
Min. Class RequiredGeneral
LocationSeguin, TX
Grant DateJun 13, 2020
Expiration DateAug 6, 2030
K5STX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Upton, Louis R in Seguin, TX. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by ROCHA, GERARDO on Jul 7, 2026. K5STX has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ..... ... - -..-
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
Kilo Five Sierra Tango X-ray
Readability: 7.5/10(High readability)
License History
- License RenewedJun 13, 2020
- License IssuedAug 6, 2010
- Vanity Callsign GrantedAug 6, 2010
- License ExpiredJul 17, 2010
Vanity Application Activity
Competing applications filed with the FCC for this callsign.