KB4UR
Active2x2District 4
Competitive callsign — 1 application filed with the FCC.
License HolderHeinert, William L
License ClassTechnician
Min. Class RequiredGeneral
LocationKALAMAZOO, MI
Grant DateJan 27, 2026
Expiration DateJan 27, 2036
KB4UR is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Heinert, William L in KALAMAZOO, MI. 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 BROCK, LOWRY J on Jan 7, 2026. KB4UR has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -... ....- ..- .-.
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Bravo Four Uniform Romeo
Readability: 7/10(Good readability)
License History
- License IssuedJan 27, 2026
- Vanity Callsign GrantedJan 27, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- BROCK, LOWRY JFiled Jan 7, 2026Not awardedFCC ↗