W4MSM
Active1x3District 4
Competitive callsign — 14 applications filed with the FCC.
License HolderMcLain, Mark S
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationAFTON, TN
Grant DateMay 7, 2020
Expiration DateMar 23, 2030
W4MSM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by McLain, Mark S in AFTON, TN. This callsign has attracted significant interest in the amateur radio community, with 14 vanity applications filed with the FCC. The most recent was submitted by Mooney, Michael S on Aug 5, 2025. W4MSM has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- -- ... --
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Whiskey Four Mike Sierra Mike
Readability: 8.5/10(High readability)
License History
- License RenewedMay 7, 2020
- License ModifiedDec 8, 2014
- License IssuedMar 23, 2010
- Vanity Callsign GrantedMar 23, 2010
Vanity Application Activity
Competing applications filed with the FCC for this callsign.