N4YRU
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderKnudsen, Jonathan A
License ClassTechnician
Min. Class RequiredGeneral
LocationClarksville, TN
Grant DateFeb 7, 2026
Expiration DateFeb 7, 2036
N4YRU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Knudsen, Jonathan A in Clarksville, TN. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Knudsen, Jonathan A on Jan 20, 2026. N4YRU has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ....- -.-- .-. ..-
CW Weight: 31 units(Moderate)
Voice Phonetics
November Four Yankee Romeo Uniform
Readability: 6.5/10(Good readability)
License History
- License IssuedFeb 7, 2026
- Vanity Callsign GrantedFeb 7, 2026
- License ExpiredMay 30, 2012
- License RenewedMar 3, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Knudsen, Jonathan AFiled Jan 20, 2026Not awardedFCC ↗