NA4DX
Active2x2District 4
Competitive callsign — 9 applications filed with the FCC.
License HolderMayo, John H
License ClassGeneral
Min. Class RequiredGeneral
LocationHopewell, OH
Grant DateJan 24, 2020
Expiration DateJan 24, 2030
NA4DX is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Mayo, John H in Hopewell, OH. This callsign has attracted significant interest in the amateur radio community, with 9 vanity applications filed with the FCC. The most recent was submitted by SCANTLAN, LAWRENCE A on Jan 6, 2020. NA4DX has 11 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. .- ....- -.. -..-
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
November Alpha Four Delta X-ray
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedAug 4, 2020
- Vanity Callsign GrantedJan 24, 2020
- License IssuedJan 24, 2020
- License CanceledJan 3, 2018
- License IssuedSep 2, 2016
- Vanity Callsign GrantedSep 2, 2016
- License ExpiredMay 19, 2016
- Vanity Callsign GrantedMay 18, 2004
- License IssuedMay 18, 2004
- License CanceledMar 7, 2002
- License ModifiedNov 14, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.