KR4DOC
Active2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderRivera, Joshua G
License ClassTechnician
Min. Class RequiredTechnician
LocationWinter Garden, FL
Grant DateApr 29, 2025
Expiration DateApr 29, 2035
KR4DOC is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Rivera, Joshua G in Winter Garden, 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 MASTERS, STEVEN B on Feb 9, 2026. KR4DOC has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. ....- -.. --- -.-.
CW Weight: 41 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Delta Oscar Charlie
Readability: 7/10(Good readability)
License History
- System-Generated GrantApr 29, 2025
- License IssuedApr 29, 2025
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- MASTERS, STEVEN BFiled Feb 9, 2026Not awardedFCC ↗