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KM4SXO

Available2x3District 4

No competing applications on record.

License HolderWinsor, Robert S

License ClassTechnician

Min. Class RequiredTechnician

LocationHamilton, VA

Grant DateApr 1, 2016

Expiration DateApr 1, 2026

Cancellation DateApr 19, 2016

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KM4SXO

Available2x3District 4

No competing applications on record.

License HolderWinsor, Robert S

License ClassTechnician

Min. Class RequiredTechnician

LocationHamilton, VA

Grant DateApr 1, 2016

Expiration DateApr 1, 2026

Cancellation DateApr 19, 2016

Available for ApplicationsApr 20, 2018

KM4SXO is a 2x3 format amateur radio callsign. It is currently registered to Winsor, Robert S in Hamilton, VA. 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: 40 units(Moderate)

Voice Phonetics

Kilo Mike Four Sierra X-ray Oscar

Readability: 7.5/10(High readability)

This callsign is available now

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

License History

License CanceledApr 19, 2016
System-Generated GrantApr 1, 2016
License IssuedApr 1, 2016

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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← KM4SXN KM4SXP →

FCC data as of Sep 12, 2026

Is KM4SXO Available? FCC Vanity Status & Watchlist