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KY4KO

Active2x2District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderStambaugh, Harold M

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationTutor Key, KY

Grant DateDec 28, 2024

Expiration DateMar 17, 2035

KY4KO is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Stambaugh, Harold M in Tutor Key, KY. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Stambaugh, Harold M on Feb 27, 2015. KY4KO has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 40 units(Moderate)

Voice Phonetics

Kilo Yankee Four Kilo Oscar

Readability: 8/10(High readability)

License History

License RenewedDec 28, 2024
License IssuedMar 17, 2015
Vanity Callsign GrantedMar 17, 2015
License CanceledFeb 22, 2008
License IssuedJun 5, 2007
Vanity Callsign GrantedJun 5, 2007

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Stambaugh, Harold MFiled Feb 27, 2015
Not awardedFCC ↗
Mahaney, Thomas SFiled May 18, 2007
Not awardedFCC ↗

Search external databases

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FCC data as of Jul 29, 2026

KY4KO FCC Vanity Status: 2 Competing Applications & History