IMEI is really a 15 digits number, which can be displayed on the phone LCD by dialing *#06# just like a phone number. Please enter only numbers, without spaces or signs like "-" or "/" ;.Quite check imei number could be longer, but we simply need the initial 15 digits. If you own an Apple product like iPhone or iPad, you will find the IMEI number in the phone settings. Android devices likewise have an IMEI number in the phone settings. Other devices like modems, which doesn't have a screen, need to check the sticker on the unit to obtain the IMEI number.