KR4LSU
Active2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderBall, Jack S
License ClassTechnician
Min. Class RequiredTechnician
LocationMineral, VA
Grant DateDec 23, 2025
Expiration DateDec 23, 2035
KR4LSU is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Ball, Jack S in Mineral, VA. 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 Ball, Jack S on Dec 3, 2025. KR4LSU has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. ....- .-.. ... ..-
CW Weight: 33 units(Moderate)
Voice Phonetics
Kilo Romeo Four Lima Sierra Uniform
Readability: 6/10(Good readability)
License History
- License IssuedDec 23, 2025
- Vanity Callsign GrantedDec 23, 2025
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Ball, Jack SFiled Dec 3, 2025Not awardedFCC ↗