KB0SXF
Active2x3District 0
No competing applications on record.
License HolderUNDERWOOD, RALPH E
License ClassTechnician
Min. Class RequiredTechnician
LocationCASTLE ROCK, CO
Grant DateJun 18, 2025
Expiration DateJul 2, 2035
KB0SXF is a 2x3 format amateur radio callsign. It is currently registered to UNDERWOOD, RALPH E in CASTLE ROCK, CO. 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: 45 units(Heavy (slower to send))
Voice Phonetics
Kilo Bravo Zero Sierra X-ray Foxtrot
Readability: 6.5/10(Good readability)
License History
- License RenewedJun 18, 2025
- License RenewedJul 2, 2015
- License RenewedMar 16, 2005
- FRN Association Letter SentAug 23, 2004
- Administrative Update AppliedAug 21, 2004
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.