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K1SB

Active1x2District 1

Competitive callsign — 3 applications filed with the FCC.

License HolderBUONAGURIO, STANLEY F

License ClassAmateur Extra

Min. Class RequiredAmateur Extra

Locationjacksonville, FL

Grant DateApr 17, 2026

Expiration DateMay 15, 2036

K1SB is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by BUONAGURIO, STANLEY F in jacksonville, FL. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Brown, Stephen M on Jul 23, 2021. K1SB has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-.- .---- ... -...

CW Weight: 29 units(Light (fast to send))

Voice Phonetics

Kilo One Sierra Bravo

Readability: 8/10(High readability)

License History

License RenewedApr 17, 2026
License RenewedApr 8, 2016
License RenewedFeb 21, 2006
Tax ID (TIN) AddedMar 25, 2003
Administrative Update AppliedMar 25, 2003

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Brown, Stephen MFiled Jul 23, 2021
Not awardedFCC ↗
Bianchi Mr., Stephen RFiled Jul 22, 2009
Not awardedFCC ↗
Bianchi, StephenFiled Jun 30, 2009
DismissedFCC ↗

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← K1SA K1SC →

FCC data as of Jul 9, 2026

K1SB FCC Vanity Status: 3 Competing Applications & History