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KI4SK

Available2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderWINKLER JR, THOMAS Q

License ClassAdvanced

Min. Class RequiredGeneral

LocationPENSACOLA, FL

Grant DateMay 20, 2003

Expiration DateApr 13, 2013

Cancellation DateApr 14, 2015

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KI4SK

Available2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderWINKLER JR, THOMAS Q

License ClassAdvanced

Min. Class RequiredGeneral

LocationPENSACOLA, FL

Grant DateMay 20, 2003

Expiration DateApr 13, 2013

Cancellation DateApr 14, 2015

Available for ApplicationsApr 14, 2015

KI4SK is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by WINKLER JR, THOMAS Q in PENSACOLA, FL. 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 King, Michael R on Feb 28, 2017. KI4SK has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 26 units(Light (fast to send))

Voice Phonetics

Kilo India Four Sierra Kilo

Readability: 7/10(Good readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (2x2).

License History

License ExpiredApr 14, 2015
Tax ID (TIN) AddedMay 20, 2003
License RenewedMay 20, 2003

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

King, Michael RFiled Feb 28, 2017
DismissedFCC ↗

Search external databases

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FCC data as of Jul 30, 2026

KI4SK FCC Vanity Status: 1 Competing Application & History