Find Your UDID
By installing a profile
Visit this page in Safari on your device, install the temporary profile, and we'll automatically detect your UDID.
By using iTunes
Follow these instructions to find your UDID in iTunes.
By using Xcode
Download and open Xcode, connect your device, go to Window > Devices, and select your device on the left. Your UDID should be listed here. If you have an Apple Watch, your UDID will be listed on the same screen as the paired iPhone.