IMEI is an acronym that stands for International Mobile Equipment Identity. Each GSM and UMTS mobile phone has a unique IMEI number. IMEI number facilitates an important function; it easily identifies a mobile phone being used on a GSM (Global System for Mobile Communications) network.

Mobile phone companies can use the number to identify valid subscribers and the type of equipment used. The carrier could thus use the number to remotely disable the phone in the event it is stolen or reported lost and customize data content to be compatible with the type of equipment used.

IMEI numbers come in either 15 digit or 17 digit sequences of numbers.

How to find the IMEI for a GSM (simcard) Phone ?

1. Ensure your phone is powered on.
2. Press the following keys on your phones keypad one by one: * # 0 6 #

3. As you press on the last #, a number will appear on your screen with the title, IMEI number. That 15 or 17 digit number is the IMEI number for that phone.

Please note: If you are on a call and you need the IMEI number then, clear out any numbers on the screen that were pressed to make the call and then type the above code.

Alternate Methods

1. Ensure the phone is powered off.
2. Remove the battery.
3. Look on the phone for a white sticker/label, which would be now exposed after removing the battery, for the IMEI. It would be 15 or 17 digits not including a few forward slashes included and without any letters.
4. If the phone is not available or if the label is unreadable then have a look at the phone manufacturer's packaging for a white sticker/label. Near one bar code or another the IMEI would also be printed.