KK5JSC
Active2x3District 5
Competitive callsign — 1 application filed with the FCC.
License HolderCLAUSIUS, JEFF
License ClassTechnician
Min. Class RequiredTechnician
LocationROUND ROCK, TX
Grant DateFeb 27, 2026
Expiration DateFeb 27, 2036
KK5JSC is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by CLAUSIUS, JEFF in ROUND ROCK, TX. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by CLAUSIUS, JEFF on Feb 9, 2026. KK5JSC has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -.- ..... .--- ... -.-.
CW Weight: 40 units(Moderate)
Voice Phonetics
Kilo Kilo Five Juliet Sierra Charlie
Readability: 6.5/10(Good readability)
License History
- License IssuedFeb 27, 2026
- Vanity Callsign GrantedFeb 27, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- CLAUSIUS, JEFFFiled Feb 9, 2026Not awardedFCC ↗