For iPhone 11 Pro MAX, 11 Pro, 11, XS, XS MAX, XR, 8, 8 Plus, X, 7, 7 Plus, 6s, SE, 6, 6s Plus, 6 Plus, 5S, 5C, 5, 4S, 4, iPad Pro, iPad & iPad Air, 2, 3, 4, and iPad Mini, Mini 2, Mini 3, Mini 4, iPod Touch 5, 6.
iOS 7, iOS 8, IOS 9, iOS 10, IOS 11, IOS 12.1.4 - 12.2 - 12.3- 12.4.1 - 13.0 - 13.1 - 13.2 - 13.2.2 - 13.3 - 13.4 - 13.4.1 - 13.5 - 13.5.1 Supported.
You can retrieve the iPhone's IMEI number by dialing the code *#06# into the Phone app. Follow these steps to get your iPhone's IMEI number:
Open Phone app.
The IMEI number is engraved on the reverse of your iPhone. Flip the iPhone over and look for the long number engraved at the end of the text (the bit starting with "Designed by Apple in California"). The IMEI text is incredibly small, though, so you may need a magnifying glass.
Tap General > About.
Scroll down to locate the IMEI number.
Tap and hold the IMEI number to bring up a Copy bubble.
iPad and iPod touch.
1. You can find the serial number for your iPad and iPod touch engraved on the back case, near the bottom.
2. Tap Settings > General > About to see your device’s serial number.