KD4XX
Available2x2District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderAllison, James O
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationJasper, TN
Grant DateMar 23, 2012
Expiration DateMar 23, 2022
Cancellation DateMar 26, 2024
Available for ApplicationsMar 24, 2024
KD4XX is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Allison, James O in Jasper, TN. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Gray, Larry E on Feb 17, 2026. KD4XX has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -.. ....- -..- -..-
CW Weight: 35 units(Moderate)
Voice Phonetics
Kilo Delta Four X-ray X-ray
Readability: 8/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredMar 26, 2024
- License IssuedMar 23, 2012
- Vanity Callsign GrantedMar 23, 2012
- License ExpiredMar 30, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.