The above video tutorial shows user how to find the IMEI number on an iPhone.
The IMEI number serves as a unique identifier for mobile phones. Generally, it is used by technical support teams and when buying and selling used mobile devices.
If your iPhone is turned on, you can find the IMEI number by navigating to:
On newer iPhone’s, the IMEI number can also be found by removing the phone’s case and then looking at the bottom of the phone’s backplate.
The best methods for finding IMEI numbers on older iPhones is shown in the video above.