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KB0SFO

Available2x3District 0

No competing applications on record.

License HolderSiolek, Thomas

License ClassGeneral

Min. Class RequiredTechnician

LocationWest Chester, PA

Grant DateSep 10, 1998

Expiration DateApr 25, 2005

Cancellation DateJun 23, 2000

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KB0SFO

Available2x3District 0

No competing applications on record.

License HolderSiolek, Thomas

License ClassGeneral

Min. Class RequiredTechnician

LocationWest Chester, PA

Grant DateSep 10, 1998

Expiration DateApr 25, 2005

Cancellation DateJun 23, 2000

Available for ApplicationsJun 24, 2002

KB0SFO is a 2x3 format amateur radio callsign. It is currently registered to Siolek, Thomas in West Chester, PA. 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: 46 units(Heavy (slower to send))

Voice Phonetics

Kilo Bravo Zero Sierra Foxtrot Oscar

Readability: 6.5/10(Good readability)

This callsign is available now

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License CanceledJun 23, 2000
License ModifiedMay 26, 2000

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.

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FCC data as of Sep 3, 2026

Is KB0SFO Available? FCC Vanity Status & Watchlist