K4SJ
Active1x2District 4
Competitive callsign — 21 applications filed with the FCC.
License HolderAriens, Jeffrey J
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationPUNTA GORDA, FL
Grant DateJan 28, 2025
Expiration DateJan 28, 2035
K4SJ is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by Ariens, Jeffrey J in PUNTA GORDA, FL. This callsign has attracted significant interest in the amateur radio community, with 21 vanity applications filed with the FCC. The most recent was submitted by John, Scott W on Sep 3, 2025. K4SJ has 10 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... .---
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
Kilo Four Sierra Juliet
Readability: 7.5/10(High readability)
License History
- License IssuedJan 28, 2025
- Vanity Callsign GrantedJan 28, 2025
- Internal Correction AppliedDec 10, 2024
- Internal Correction AppliedDec 10, 2024
- Administrative Update AppliedMay 1, 2014
- License RenewedJan 1, 2014
- Vanity Callsign GrantedMar 23, 2004
- License IssuedMar 23, 2004
- Internal Correction AppliedMar 3, 2004
- Internal Correction AppliedMar 3, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.