KB0KBR
Active2x3District 0
Competitive callsign — 1 application filed with the FCC.
License HolderCASTLEBERRY, WILLIAM I S
Min. Class RequiredTechnician
LocationSAN RAFAEL, CA
Grant DateJun 5, 2026
Expiration DateJun 5, 2036
KB0KBR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by CASTLEBERRY, WILLIAM I S in SAN RAFAEL, 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 Bohn, James W on May 18, 2026. KB0KBR has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -... ----- -.- -... .-.
CW Weight: 46 units(Heavy (slower to send))
Voice Phonetics
Kilo Bravo Zero Kilo Bravo Romeo
Readability: 6.5/10(Good readability)
License History
- License IssuedJun 5, 2026
- Vanity Callsign GrantedJun 5, 2026
- License ExpiredMay 20, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Bohn, James WFiled May 18, 2026Not awardedFCC ↗