To find your Apple ID, you can check devices you're signed
into, such as your iPhone, iPad, or Mac. Go to Settings on your iPhone or iPad
and tap your name at the top to view your Apple ID. On a Mac, open System
Preferences and click Apple ID. If you're unable to find it, visit iforgot.apple.com and enter your
recovery email or phone number to retrieve your Apple ID. This is especially
useful if you’ve forgotten the ID and need quick access to your Apple account
details.