KB4JM
Active2x2District 4
No competing applications on record.
License HolderMATHEWS, MARK A
License ClassTechnician
Min. Class RequiredGeneral
LocationAMERICAN CANYON, CA
Grant DateDec 2, 2025
Expiration DateNov 28, 2035
KB4JM is a 2x2 format amateur radio callsign. It is currently registered to MATHEWS, MARK A in AMERICAN CANYON, 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: 36 units(Moderate)
Voice Phonetics
Kilo Bravo Four Juliet Mike
Readability: 8/10(High readability)
License History
- Administrative Update AppliedDec 4, 2025
- License RenewedDec 2, 2025
- License RenewedNov 12, 2015
- License RenewedSep 8, 2005
- FRN Association Letter SentAug 8, 2005
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.