How can I get information about someone only knowing their cell phone number and first name?

Try a reverse telephone directory such as http://www.reversephonedirectory.com/ to get his last name... I don't know if it works for cell phones though. Good Luck.

How can I get information about someone only knowing their cell phone number and first name?
Call the person and ask them. All other sources are likely to be skewed.
Reply:You need to join a stalkers group. The best way is to talk to her, not secretly try to get to know more about her.
Reply:I would call the number, and then the person will maybe say its surname. Then you can check it out in the Internet!