NO4DX
Active2x2District 4
Competitive callsign — 7 applications filed with the FCC.
License HolderSIMONSON, ROBERT E
License ClassGeneral
Min. Class RequiredGeneral
LocationFairport, NY
Grant DateFeb 6, 2026
Expiration DateFeb 6, 2036
NO4DX is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by SIMONSON, ROBERT E in Fairport, NY. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by David, Shamblin W on Dec 8, 2015. NO4DX has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. --- ....- -.. -..-
CW Weight: 33 units(Moderate)
Voice Phonetics
November Oscar Four Delta X-ray
Readability: 7.5/10(High readability)
License History
- License RenewedFeb 6, 2026
- Administrative Update AppliedSep 13, 2025
- Administrative Update AppliedMar 6, 2018
- Administrative Update AppliedJul 1, 2016
- Administrative Update AppliedJan 27, 2016
- License IssuedDec 26, 2015
- Vanity Callsign GrantedDec 26, 2015
Vanity Application Activity
Competing applications filed with the FCC for this callsign.