N4US
Active1x2District 4
Competitive callsign — 55 applications filed with the FCC.
License HolderMartin, Jeffrey A
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationBowling Greeen, KY
Grant DateDec 9, 2025
Expiration DateDec 9, 2035
N4US is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Martin, Jeffrey A in Bowling Greeen, KY. This callsign has attracted significant interest in the amateur radio community, with 55 vanity applications filed with the FCC. The most recent was submitted by Wilbanks, Daniel on Dec 8, 2025. N4US has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ....- ..- ...
CW Weight: 19 units(Ultra-light (very fast to send))
Voice Phonetics
November Four Uniform Sierra
Readability: 7/10(Good readability)
License History
- Vanity Callsign GrantedDec 9, 2025
- License IssuedDec 9, 2025
- License ExpiredOct 1, 2025
- License RenewedJul 13, 2013
- Vanity Callsign GrantedSep 30, 2003
- License IssuedSep 30, 2003
- Internal Correction AppliedSep 10, 2003
- Internal Correction AppliedSep 10, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.