W4QDX
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderMasterson, Rex A
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationShepherdsville, KY
Grant DateAug 7, 2026
Expiration DateAug 7, 2036
W4QDX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Masterson, Rex A in Shepherdsville, KY. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Masterson, Rex A on Jul 23, 2004. W4QDX has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ....- --.- -.. -..-
CW Weight: 37 units(Moderate)
Voice Phonetics
Whiskey Four Quebec Delta X-ray
Readability: 8/10(High readability)
License History
- License RenewedAug 7, 2026
- License RenewedAug 8, 2014
- License ModifiedNov 21, 2011
- License IssuedAug 10, 2004
- Vanity Callsign GrantedAug 10, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.