K4JR
Active1x2District 4
Competitive callsign — 11 applications filed with the FCC.
License HolderREADING, JAMES R
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationSUMTER, SC
Grant DateFeb 2, 2017
Expiration DateMar 5, 2027
K4JR is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by READING, JAMES R in SUMTER, SC. This callsign has attracted significant interest in the amateur radio community, with 11 vanity applications filed with the FCC. The most recent was submitted by Rickman, Jason on Aug 5, 2026. K4JR has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .--- .-.
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Juliet Romeo
Readability: 7.5/10(High readability)
License History
- License RenewedFeb 2, 2017
- License RenewedJan 30, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.