There are several methods to finding your phone's IMEI number, depending on the type of device:
For all iPhones, you can find your IMEI number in your phone’s settings, or you can locate the number in your phone's SIM card tray when it is removed from the device.
For some Android phones, you can find your IMEI number on the back of the phone, or under the battery. Look for the icon of a rectangular box with an antenna next to it.
Some Android phones provide an
About phone
option in your phone's settings, where you can find the IMEI number. You can also dial *#06# to view your device's IMEI number.