KR4MZX
Active2x3District 4
No competing applications on record.
License HolderSmith, David
License ClassGeneral
Min. Class RequiredTechnician
LocationFlagstaff, AZ
Grant DateJun 17, 2026
Expiration DateJun 17, 2036
KR4MZX is a 2x3 format amateur radio callsign. It is currently registered to Smith, David in Flagstaff, AZ. 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: 41 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Mike Zulu X-ray
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedJun 30, 2026
- System-Generated GrantJun 17, 2026
- License IssuedJun 17, 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.