Many people are not aware of IMEI number. What it is? It is International Mobile Equipment Identity Number. It is a 16 digit number allotted for each mobile and no two mobile has same IMEI number. This IMEI number is very important, since, we can deactivate the mobile, if it is stolen, thus protecting the private details of the mobile. Every user should note down their IMEI number carefully. If you don’t know your IMEI number, just find out by typing *#06# in your mobile.