K9ESI
Active1x3District 9
Competitive callsign — 2 applications filed with the FCC.
License HolderHEPP, SIDNEY E
License ClassGeneral
Min. Class RequiredGeneral
LocationO Fallon, IL
Grant DateApr 7, 2026
Expiration DateApr 7, 2036
K9ESI is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by HEPP, SIDNEY E in O Fallon, IL. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by HEPP, SIDNEY E on Mar 20, 2026. K9ESI has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----. . ... ..
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
Kilo Nine Echo Sierra India
Readability: 7/10(Good readability)
License History
- License IssuedApr 7, 2026
- Vanity Callsign GrantedApr 7, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.