That said, the best way to look up someone based on a phone number right now is Facebook. Reverse e-mail lookup to discover who has sent you a message.
There are just a few, and what works today for me might not work for you next week. Unfortunately, reverse cell phone lookups remain one of the few kinds of online searches that it's almost impossible to get for free. Performing a reverse phone search is theoretically much more straightforward - you enter a phone number on a Web page and learn the person's name and address. It's hit or miss, to be sure, but you can sometimes score a direct hit. You can search Facebook, Google, or photo search engines, for example, to locate someone who sent you an e-mail. (MoneyWatch) Not long ago I told you a few strategies for performing a reverse e-mail lookup.