How to check the IMEI number of your device ? On the main screen of your phone type the following sequence *#06# just like a phone number. IMEI number will be displayed on your phone. All smarphone owners with an android or iOS system (iPhone or iPad) can find the IMEI number in the phone settings as well. Devices that don't have a screen, like modems, can find the IMEI number on the sticker on the device. When you have the IMEI number, enter it in search engine to receive warranty or blacklist status.