KM4UDW
Active2x3District 4
No competing applications on record.
License HolderDE LEON, MARIANO
License ClassGeneral
Min. Class RequiredTechnician
LocationPONCE, PR
Grant DateMar 18, 2026
Expiration DateMay 23, 2036
KM4UDW is a 2x3 format amateur radio callsign. It is currently registered to DE LEON, MARIANO in PONCE, PR. 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: 37 units(Moderate)
Voice Phonetics
Kilo Mike Four Uniform Delta Whiskey
Readability: 7.5/10(High readability)
License History
- License RenewedMar 18, 2026
- System-Generated GrantMay 23, 2016
- License IssuedMay 23, 2016
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.