N4MMU
Active1x3District 4
No competing applications on record.
License HolderREDMILL, KEITH A
License ClassGeneral
Min. Class RequiredGeneral
LocationCOLUMBUS, OH
Grant DateJan 17, 2026
Expiration DateMar 1, 2036
N4MMU is a 1x3 format amateur radio callsign. It is currently registered to REDMILL, KEITH A in COLUMBUS, OH. 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: 28 units(Light (fast to send))
Voice Phonetics
November Four Mike Mike Uniform
Readability: 8/10(High readability)
License History
- License RenewedJan 17, 2026
- License RenewedDec 19, 2015
- License ModifiedAug 30, 2011
- License RenewedMar 1, 2006
- FRN Association Letter SentFeb 28, 2006
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.