KK4RSU
Available2x3District 4
No competing applications on record.
License HolderKnapp, Jonathan D
License ClassTechnician
Min. Class RequiredTechnician
LocationCharlotte, NC
Grant DateJun 7, 2013
Expiration DateJun 7, 2023
Cancellation DateJun 10, 2025
Available for ApplicationsJun 8, 2025
KK4RSU is a 2x3 format amateur radio callsign. It is currently registered to Knapp, Jonathan D in Charlotte, NC. 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: 34 units(Moderate)
Voice Phonetics
Kilo Kilo Four Romeo Sierra Uniform
Readability: 6/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License ExpiredJun 10, 2025
- System-Generated GrantJun 7, 2013
- License IssuedJun 7, 2013
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.