IMEI is a universal mobile equipment identifier running with GSM and CDMA networks. It is a unique 15-digit number assigned to each device by the manufacturer at the factory. Its main purpose is the identification of the device in the cellular network. Accordingly, it is according to the IMEI that the phone is locked at the level of telecom operators in case of loss or theft of a mobile phone. Consider more Main Methods for determining the IMEI of your phone.
The easiest and most reliable way is the set of combination * # 06 # directly on a mobile phone. A unique 15-digit device identifier will be displayed on the screen.Thus, in case of loss or theft of a mobile phone, its owner can contact law enforcement agencies, to provide evidence confirming its right to own a device with defined IMEI, and the device will be blocked to work in cellular networks, unless, of course, the search for identifier will not allow Return the phone.