Use your mobile phone number as your Apple ID
Any time you set up an iPhone, iPad, or iPod touch, you have the option to sign in with your existing Apple ID or create a new account. If you create a new Apple ID on an iPhone in iOS 11 or later, you can use your mobile phone number as your user name in China mainland and India. If you live in China mainland, use your (+86) mobile phone number. If you live in India, use your (+91) number. Depending on your carrier, you might also be able to create a new account with a phone number on some Android devices, smart TVs, and streaming devices. Just choose Create Your Apple ID from the Apple ID sign in screen and follow the instructions to create your new account.
Once your account is created, you can use it to sign in to any Apple device or service. Whenever you sign in to a new device, app, or service, you’ll enter your mobile phone number—including the country code—and your password. Be sure to use the same Apple ID everywhere you sign in so that your Apple devices and services work together seamlessly.
If you already have an Apple ID that’s an email address, you might not be able to change it to a mobile phone number. However, you can associate your account with different phone numbers or email addresses on your Apple ID account page.