How to Check for Phone Numbers in Facebookby Shawn Farner
Facebook is a social networking service that helps you keep in contact with friends and family. Facebook members can share a lot of information about themselves on their Facebook profiles. It might be something as general as what kind of music they like, or even something more specific, like their phone number. If you want to see which Facebook friends have added phone numbers to their profiles, you can do so in just a few steps.
Browse to the Facebook homepage at Facebook.com and log in.
Click "Account" near the top of the screen on the right side, then click "Edit Friends."
Click "Contacts" on the left side of the screen. This displays all of your Facebook friends that have phone numbers included in their profiles. As of this writing, there is no way to search for the phone numbers of users with whom you aren't friends.