KX4MSB
Available2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderBYRD, MATTHEW S
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationBURLINGTON, NC
Grant DateJun 22, 2022
Expiration DateJun 22, 2032
Cancellation DateSep 8, 2023
Available for ApplicationsSep 9, 2025
KX4MSB is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by BYRD, MATTHEW S in BURLINGTON, NC. 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 Byrd, Matthew S on Jun 2, 2022. KX4MSB has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -..- ....- -- ... -...
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo X-ray Four Mike Sierra Bravo
Readability: 7.5/10(High readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledSep 8, 2023
- License ModifiedMar 9, 2023
- License ModifiedJul 1, 2022
- License IssuedJun 22, 2022
- Vanity Callsign GrantedJun 22, 2022
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Byrd, Matthew SFiled Jun 2, 2022Not awardedFCC ↗