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K4SOK

Active1x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderSokolowski, Erik D

License ClassTechnician

Min. Class RequiredGeneral

LocationCatlett, VA

Grant DateOct 20, 2018

Expiration DateOct 20, 2028

K4SOK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Sokolowski, Erik D in Catlett, VA. 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 Sokolowski, Erik D on Oct 2, 2018. K4SOK has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Four Sierra Oscar Kilo

Readability: 7.5/10(High readability)

License History

License IssuedOct 20, 2018
Vanity Callsign GrantedOct 20, 2018

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Sokolowski, Erik DFiled Oct 2, 2018
Not awardedFCC ↗
Schantz, Douglas Darren DFiled Aug 9, 2013
Not awardedFCC ↗

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FCC data as of Sep 4, 2026

K4SOK FCC Vanity Status: 2 Competing Applications & History