KR4MPO
Active2x3District 4
No competing applications on record.
License HolderFont Marro, Ernesto F
License ClassTechnician
Min. Class RequiredTechnician
LocationLouisville, KY
Grant DateJun 2, 2026
Expiration DateJun 2, 2036
KR4MPO is a 2x3 format amateur radio callsign. It is currently registered to Font Marro, Ernesto F in Louisville, KY. 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: 42 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Mike Papa Oscar
Readability: 7.5/10(High readability)
License History
- System-Generated GrantJun 2, 2026
- License IssuedJun 2, 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.