KR4OKO
Active2x3District 4
No competing applications on record.
License HolderYamamoto, Satoru
License ClassGeneral
Min. Class RequiredTechnician
LocationSan Leandro, CA
Grant DateAug 15, 2026
Expiration DateAug 15, 2036
KR4OKO is a 2x3 format amateur radio callsign. It is currently registered to Yamamoto, Satoru in San Leandro, CA. 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: 44 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Oscar Kilo Oscar
Readability: 7/10(Good readability)
License History
- System-Generated GrantAug 15, 2026
- License IssuedAug 15, 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.