If you forgot your Apple ID email address or phone number

Your Apple ID is the account you use to sign in to all Apple services. If you forgot the email address or phone number that you use with your Apple ID or aren't sure if you have one, you can look it up or check if you're already signed in to an app or service.

See if you're already signed in with your Apple ID

Check to see if you're signed in on your device, or check if you're signed in to Apple apps or services.

On your iPhone, iPad, iPod touch, or Apple Watch

Tap Settings, then tap your name.

On your Mac

Choose Apple menu  > System Preferences, then click Apple ID.

On your PC

Open iCloud for Windows, then look for your Apple ID under your name. 

Other ways to find your Apple ID

You can check if you're signed in to the App Store, FaceTime, or Messages on your iPhone, iPad, iPod touch, or Mac, or check if you're signed in to iTunes for Windows on a PC. You can also go to iCloud.com or appleid.apple.com and see if your Apple ID prefills on the sign-in screen. 

Check your inbox for emails from Apple

Your Apple ID might be included in some emails from Apple. Search your inbox for receipts as well as repair, support, or billing emails from Apple.

If your email address is masked (k*****@icloud.com), the number of asterisks might not match the number of characters in your email address.