KR4JJB
Active2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderHentschel, Samuel J
License ClassTechnician
Min. Class RequiredTechnician
LocationManassas, VA
Grant DateFeb 3, 2026
Expiration DateFeb 3, 2036
KR4JJB is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Hentschel, Samuel J in Manassas, VA. 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 Bosworth, Jennifer J on Jan 21, 2025. KR4JJB has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. ....- .--- .--- -...
CW Weight: 45 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Juliet Juliet Bravo
Readability: 6/10(Good readability)
License History
- System-Generated GrantFeb 3, 2026
- License IssuedFeb 3, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Bosworth, Jennifer JFiled Jan 21, 2025Not awardedFCC ↗