Forum Thread: How to extract all the information about the person like his email ID gmail ID,facebook account by using his phone no.?

You Can Search Facebook by Phone Number

then you can use the about tab to see their Facebook ID

then use their Facebook wall to gather any interest of their and use whats-app again with the phone number to pretend to be a sales man or any charity gathering some shit about her interest and you can ask for email if you are handy enough go for a phone CALL instead

Easy. Black Market.