Every Facebook user has a unique ID number. This number gives you some information on approximately -- but not precisely -- when you and your friends joined Facebook relative to each other. A ...

When Facebook was founded, every user was given an ID number. It began with ID #0, which redirects every user to their own profile page. ID numbers 1-3 were tests that Mark Zuckerberg used to ...

Yesterday, we wrote about Facebook ID numbers and found the first people to ever sign up for the social network. When Facebook was founded, every user was given an ID number. It began with ID #0 ...

How to Get an ID & Phone Number From a Facebook Link. Facebook lets users create a unique ID or "username" that defines the Web addresses where Facebook profiles are located. Users can also enter ...