W4MSW
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderYarbrough Mr, Dennis A
License ClassTechnician
Min. Class RequiredGeneral
LocationLakeland, FL
Grant DateNov 27, 2017
Expiration DateFeb 6, 2028
W4MSW is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Yarbrough Mr, Dennis A in Lakeland, 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 Weirich, Matthew S on Jan 2, 2026. W4MSW has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- -- ... .--
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Whiskey Four Mike Sierra Whiskey
Readability: 8/10(High readability)
License History
- License RenewedNov 27, 2017
- Administrative Update AppliedMar 6, 2017
- License RenewedNov 29, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Weirich, Matthew SFiled Jan 2, 2026Not awardedFCC ↗