Verify Your Identity
We want to make sure that this is really you and that you’re connecting to Facebook with just one account.
To verify your identity, you’ll log into Facebook and follow the on-site instructions to add your mobile number. As soon as we confirm who you are, you can get back to using Facebook. We won’t contact you by phone without your permission and you can choose who your number is shared with on your Timeline.
Note: Maintaining more than one account is a violation of the Facebook Terms.