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WB4MXO

Available2x3District 4

No competing applications on record.

License HolderWIDENER JR, WILLIAM E

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationKNOXVILLE, TN

Grant DateJan 30, 2014

Expiration DateMar 29, 2024

Cancellation DateMar 31, 2026

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WB4MXO

Available2x3District 4

No competing applications on record.

License HolderWIDENER JR, WILLIAM E

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationKNOXVILLE, TN

Grant DateJan 30, 2014

Expiration DateMar 29, 2024

Cancellation DateMar 31, 2026

Available for ApplicationsMar 30, 2026

WB4MXO is a 2x3 format amateur radio callsign. It is currently registered to WIDENER JR, WILLIAM E in KNOXVILLE, TN. 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: 43 units(Heavy (slower to send))

Voice Phonetics

Whiskey Bravo Four Mike X-ray Oscar

Readability: 8/10(High readability)

This callsign is available now

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

License History

License ExpiredMar 31, 2026
License RenewedJan 30, 2014
Tax ID (TIN) AddedFeb 11, 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.

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FCC data as of Jul 10, 2026

Is WB4MXO Available? FCC Vanity Status & Watchlist