KB1SFB
Active2x3District 1
No competing applications on record.
License HolderSleeper, Steven L
License ClassTechnician
Min. Class RequiredTechnician
LocationMiddletown, CT
Grant DateApr 16, 2019
Expiration DateApr 16, 2029
KB1SFB is a 2x3 format amateur radio callsign. It is currently registered to Sleeper, Steven L in Middletown, CT. 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: 41 units(Heavy (slower to send))
Voice Phonetics
Kilo Bravo One Sierra Foxtrot Bravo
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedAug 22, 2026
- License RenewedApr 16, 2019
- System-Generated GrantApr 15, 2009
- License IssuedApr 15, 2009
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.