KR4JJC
Cancelled2x3District 4
No competing applications on record.
License HolderMattos, Robert L
License ClassTechnician
Min. Class RequiredTechnician
LocationMclean, VA
Grant DateFeb 3, 2026
Cancellation DateFeb 21, 2026
Available for ApplicationsFeb 22, 2028
KR4JJC is a 2x3 format amateur radio callsign. It is currently registered to Mattos, Robert L in Mclean, VA. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
-.- .-. ....- .--- .--- -.-.
CW Weight: 47 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Juliet Juliet Charlie
Readability: 6/10(Good readability)
Available Feb 22, 2028 (535 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledFeb 21, 2026
- System-Generated GrantFeb 3, 2026
- License IssuedFeb 3, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.