K4YU
Active1x2District 4
Competitive callsign — 53 applications filed with the FCC.
License HolderKnauss, Richard W
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationWilmington, NC
Grant DateJun 11, 2026
Expiration DateSep 7, 2036
K4YU is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Knauss, Richard W in Wilmington, NC. This callsign has attracted significant interest in the amateur radio community, with 53 vanity applications filed with the FCC. The most recent was submitted by Burke, Tracy A on Feb 17, 2026. K4YU has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -.-- ..-
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Yankee Uniform
Readability: 8/10(High readability)
License History
- License RenewedJun 11, 2026
- License IssuedSep 7, 2016
- Vanity Callsign GrantedSep 7, 2016
- License ExpiredAug 18, 2016
- License RenewedJul 17, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.