IMEI

An International Mobile Equipment Identity (IMEI) number is a 15-digit serial number used to identify your phone or mobile device. It is used to identify your phone's handset and can be accessed on most devices by keying in *#06#, looking behind the battery inside the handset or by checking your phone's settings. Similar to your phone's IMSI (International Mobile Subscriber Identity) located on your phone's SIM (Subcriber Identity Module) card, it is used to identify your phone's handset as part of your full identity on a mobile network.