The International Mobile Station Equipment Identity or IMEI is a number to identify 3GPP (GSM, UMTS and LTE) and iDEN mobile phones. It Could be displayed on-screen on most phones by entering *#06#.
The IMEI number can be used for stopping a stolen phone from accessing that network, It could be used by GSM network to identify valid devices. The IMEI (14 digits plus a check digit: 15 decimal digits) or IMEISV (16 digits) includes information on the model, serial number, and origin of the device.
Example IMEI number 35-209900-176148-1 3568680000414120 35-209900-176148-23 490154203237518 Here is an IMEI number generator.
To 490154203237518, Type Allocation Code: 49015420, Serial Number: 323751, Luhn Checksum: 8