IMEI Sim Lock Checker: Hence, you can check your IMEI by dialing *#06# or through the About section from Settings. And network carriers such as T-Mobile, Verizon, Boost, AT&T, Sprint, Cricket, and others use a device’s IMEI number to verify its legitimacy. So this enables carriers to block these phones from using their SIM cards … Continue reading IMEI Sim Lock Checker, Meaning of Sick Lock Mean, Benefits of Removing Sim Lock, Sim Lock on US Cellular