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K4MSK

Active1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderWilliams, John W

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationSALEM, SC

Grant DateJun 14, 2017

Expiration DateSep 11, 2027

K4MSK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Williams, John W in SALEM, SC. 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 Swink, Jeremy T on Sep 23, 2019. K4MSK has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 30 units(Light (fast to send))

Voice Phonetics

Kilo Four Mike Sierra Kilo

Readability: 8/10(High readability)

License History

License RenewedJun 14, 2017
License RenewedJul 2, 2007
License ModifiedJul 16, 2003
License ModifiedJun 4, 2003

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Swink, Jeremy TFiled Sep 23, 2019
Not awardedFCC ↗

Search external databases

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Explore nearby callsigns

← K4MSJ K4MSL →

FCC data as of Sep 3, 2026

K4MSK FCC Vanity Status: 1 Competing Application & History