You can add a mobile number to your Battle.net Account in the Phone Number section of Battle.net Account Management.

Phone number is invalid

If you get the "Phone number is invalid error" when you try to add the number, confirm the following:

• Your number is not on a VoIP account
• Your number belongs to the same country associated with your Battle.net Account in Battle.net Account Management

If you've confirmed that information and still need help, contact us.