KR4MCU
Cancelled2x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderLe, Francois X
License ClassTechnician
Min. Class RequiredTechnician
LocationSpringfield, VA
Grant DateMay 12, 2026
Cancellation DateMay 30, 2026
Available for ApplicationsMay 31, 2028
KR4MCU is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Le, Francois X in Springfield, VA. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Long, Marcus on Jun 4, 2026. KR4MCU has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. ....- -- -.-. ..-
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Romeo Four Mike Charlie Uniform
Readability: 7/10(Good readability)
Available May 31, 2028 (692 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledMay 30, 2026
- System-Generated GrantMay 12, 2026
- License IssuedMay 12, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.