K4OU
Active1x2District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderTomcik, James D
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationSan Diego, CA
Grant DateMay 18, 2021
Expiration DateMay 18, 2031
K4OU is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Tomcik, James D in San Diego, CA. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Davis, Rodney L on Jun 25, 2025. K4OU has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- --- ..-
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Four Oscar Uniform
Readability: 8/10(High readability)
License History
- License IssuedMay 18, 2021
- Vanity Callsign GrantedMay 18, 2021
- Internal Correction AppliedApr 28, 2021
- Internal Correction AppliedApr 28, 2021
- License RenewedMar 29, 2010
- License RenewedMay 11, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.