KM4POB
Active2x3District 4
No competing applications on record.
License HolderYU, YUCHENG
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationSUNNYVALE, CA
Grant DateJan 14, 2026
Expiration DateJan 14, 2036
KM4POB is a 2x3 format amateur radio callsign. It is currently registered to YU, YUCHENG in SUNNYVALE, 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: 43 units(Heavy (slower to send))
Voice Phonetics
Kilo Mike Four Papa Oscar Bravo
Readability: 8/10(High readability)
License History
- License RenewedJan 14, 2026
- System-Generated GrantDec 9, 2015
- License IssuedDec 9, 2015
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.