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K4YYB

Available1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderO HARA JR, WILLIAM J

License ClassGeneral

Min. Class RequiredGeneral

LocationFLORENCE, KY

Grant DateAug 31, 1993

Expiration DateAug 31, 2003

Cancellation DateSep 1, 2005

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K4YYB

Available1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderO HARA JR, WILLIAM J

License ClassGeneral

Min. Class RequiredGeneral

LocationFLORENCE, KY

Grant DateAug 31, 1993

Expiration DateAug 31, 2003

Cancellation DateSep 1, 2005

Available for ApplicationsSep 1, 2005

K4YYB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by O HARA JR, WILLIAM J in FLORENCE, KY. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Broderick, William G on Feb 1, 2007. K4YYB has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

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

CW Weight: 40 units(Moderate)

Voice Phonetics

Kilo Four Yankee Yankee Bravo

Readability: 8/10(High readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (1x3).

License History

License ExpiredSep 1, 2005

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Broderick, William GFiled Feb 1, 2007
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

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FCC data as of Sep 3, 2026

K4YYB FCC Vanity Status: 1 Competing Application & History