KM4MSR
Active2x3District 4
No competing applications on record.
License HolderWARREN, ROBERT J
License ClassTechnician
Min. Class RequiredTechnician
LocationIRVINE, CA
Grant DateJul 5, 2025
Expiration DateAug 18, 2035
KM4MSR is a 2x3 format amateur radio callsign. It is currently registered to WARREN, ROBERT J in IRVINE, 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: 34 units(Moderate)
Voice Phonetics
Kilo Mike Four Mike Sierra Romeo
Readability: 7.5/10(High readability)
License History
- License RenewedJul 5, 2025
- License ModifiedOct 1, 2015
- System-Generated GrantAug 18, 2015
- License IssuedAug 18, 2015
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.