KR4JSF
Active2x3District 4
No competing applications on record.
License HolderNguyen, Jake T
License ClassTechnician
Min. Class RequiredTechnician
LocationRIVERVIEW, FL
Grant DateFeb 12, 2026
Expiration DateFeb 12, 2036
KR4JSF is a 2x3 format amateur radio callsign. It is currently registered to Nguyen, Jake T in RIVERVIEW, FL. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
-.- .-. ....- .--- ... ..-.
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Romeo Four Juliet Sierra Foxtrot
Readability: 6/10(Good readability)
License History
- System-Generated GrantFeb 12, 2026
- License IssuedFeb 12, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.