KR4MDX
Active2x3District 4
No competing applications on record.
License HolderBOONDRY, ARTHUR P
License ClassGeneral
Min. Class RequiredTechnician
LocationFULLERTON, CA
Grant DateMay 13, 2026
Expiration DateMay 13, 2036
KR4MDX is a 2x3 format amateur radio callsign. It is currently registered to BOONDRY, ARTHUR P in FULLERTON, CA. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
-.- .-. ....- -- -.. -..-
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Romeo Four Mike Delta X-ray
Readability: 7.5/10(High readability)
License History
- System-Generated GrantMay 13, 2026
- License IssuedMay 13, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.