W4MSC
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderCOWART, MARK S
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationJACKSONVILLE, FL
Grant DateSep 13, 2022
Expiration DateSep 13, 2032
W4MSC is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by COWART, MARK S in JACKSONVILLE, FL. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Porter Jr, Neil A on Dec 16, 2025. W4MSC has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- -- ... -.-.
CW Weight: 31 units(Moderate)
Voice Phonetics
Whiskey Four Mike Sierra Charlie
Readability: 8/10(High readability)
License History
- License ModifiedMar 19, 2025
- License RenewedSep 13, 2022
- License RenewedAug 14, 2012
- Administrative Update AppliedApr 26, 2005
- License IssuedSep 13, 2002
- Vanity Callsign GrantedSep 13, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.