K4US
Active1x2District 4
Competitive callsign — 6 applications filed with the FCC.
License HolderMOUNT VERNON AMATEUR RADIO CLUB
Min. Class RequiredAmateur Extra
LocationAlexandria, VA
Grant DateMay 5, 2017
Expiration DateJun 3, 2027
K4US is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by MOUNT VERNON AMATEUR RADIO CLUB in Alexandria, VA. This callsign has attracted significant interest in the amateur radio community, with 6 vanity applications filed with the FCC. The most recent was submitted by Huntley, Allen L on Sep 30, 2025. K4US has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ..- ...
CW Weight: 22 units(Light (fast to send))
Voice Phonetics
Kilo Four Uniform Sierra
Readability: 7.5/10(High readability)
License History
- License ModifiedNov 9, 2022
- License ModifiedJan 19, 2021
- License RenewedMay 5, 2017
- License ModifiedDec 17, 2014
- License RenewedMay 17, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.