K4NNX
Active1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderHumelsine, James B
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationIslamorada, FL
Grant DateMay 27, 2026
Expiration DateAug 8, 2036
K4NNX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Humelsine, James B in Islamorada, FL. 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 Humelsine, James B on Jul 21, 2006. K4NNX has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -. -. -..-
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Four November November X-ray
Readability: 7/10(Good readability)
License History
- License RenewedMay 27, 2026
- License RenewedJun 16, 2016
- License IssuedAug 8, 2006
- Vanity Callsign GrantedAug 8, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Humelsine, James BFiled Jul 21, 2006Not awardedFCC ↗