W4DEM
Active1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderDE MATTEO, WILLIAM M
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationWOODBRIDGE, VA
Grant DateJul 11, 2017
Expiration DateOct 1, 2027
W4DEM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by DE MATTEO, WILLIAM M in WOODBRIDGE, VA. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Smith, Austin on Jun 9, 2025. W4DEM has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- -.. . --
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
Whiskey Four Delta Echo Mike
Readability: 8.5/10(High readability)
License History
- License RenewedJul 11, 2017
- Administrative Update AppliedFeb 4, 2010
- FRN Association Letter SentJun 18, 2008
- FRN Disassociation Letter SentJun 18, 2008
- License RenewedJul 12, 2007
- License ModifiedMay 18, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.