W1SDM
Active1x3District 1
Competitive callsign — 4 applications filed with the FCC.
License HolderGreen, Thomas J
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationMinneapolis, MN
Grant DateJan 1, 2026
Expiration DateJan 1, 2036
W1SDM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Green, Thomas J in Minneapolis, MN. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Morin, Seth D on Aug 26, 2026. W1SDM has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
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CW Weight: 34 units(Moderate)
Voice Phonetics
Whiskey One Sierra Delta Mike
Readability: 8/10(High readability)
License History
- License RenewedJan 1, 2026
- License RenewedDec 29, 2015
- Administrative Update AppliedMar 28, 2013
- Administrative Update AppliedOct 21, 2009
- Administrative Update AppliedOct 20, 2009
- License ModifiedJan 9, 2007
- License IssuedAug 2, 2005
- Vanity Callsign GrantedAug 2, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.