KK6JRB
Available2x3District 6
Competitive callsign — 1 application filed with the FCC.
License HolderBalthazor, Jacob
License ClassTechnician
Min. Class RequiredTechnician
LocationPalo Alto, CA
Grant DateFeb 12, 2014
Expiration DateMar 5, 2024
Cancellation DateMay 7, 2026
Available for ApplicationsMar 6, 2026
KK6JRB is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Balthazor, Jacob in Palo Alto, CA. 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 Bernabe, John E on May 6, 2026. KK6JRB has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -.- -.... .--- .-. -...
CW Weight: 42 units(Heavy (slower to send))
Voice Phonetics
Kilo Kilo Six Juliet Romeo Bravo
Readability: 6.5/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredMay 7, 2026
- System-Generated GrantFeb 12, 2014
- License IssuedFeb 12, 2014
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Bernabe, John EFiled May 6, 2026ReturnedFCC ↗