W9CDU
Active1x3District 9
Competitive callsign — 1 application filed with the FCC.
License HolderNELSON, JOHN A
License ClassTechnician
Min. Class RequiredGeneral
LocationCONCORD, CA
Grant DateSep 19, 2025
Expiration DateOct 14, 2035
W9CDU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by NELSON, JOHN A in CONCORD, CA. 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 Unger, Cory D on Sep 24, 2015. W9CDU has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ----. -.-. -.. ..-
CW Weight: 38 units(Moderate)
Voice Phonetics
Whiskey Nine Charlie Delta Uniform
Readability: 7.5/10(High readability)
License History
- License RenewedSep 19, 2025
- Administrative Update AppliedMay 25, 2022
- License IssuedOct 14, 2015
- Vanity Callsign GrantedOct 14, 2015
- License ExpiredApr 14, 2015
- License RenewedJan 22, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Unger, Cory DFiled Sep 24, 2015Not awardedFCC ↗