W5MSO
Active1x3District 5
Competitive callsign — 5 applications filed with the FCC.
License HolderO'Rourke, Michael S
License ClassGeneral
Min. Class RequiredGeneral
LocationJacksonville, FL
Grant DateMar 3, 2026
Expiration DateMar 3, 2036
W5MSO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by O'Rourke, Michael S in Jacksonville, FL. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by O'Rourke, Michael S on Sep 27, 2004. W5MSO has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
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CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Whiskey Five Mike Sierra Oscar
Readability: 8/10(High readability)
License History
- License RenewedMar 3, 2026
- License RenewedFeb 13, 2016
- License ModifiedMar 13, 2007
- Administrative Update AppliedJun 25, 2005
- License IssuedOct 15, 2004
- Vanity Callsign GrantedOct 15, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.