There are many Internet services offering free reverse cell phone lookups. Their reliability varies—but remember, they're free, so you get what you pay for. Some of the websites may have limited databases, while others might have inaccurate or outdated information. These directories can provide you with the phone owner’s full name, current and previous addresses, and in some cases, the names of immediate family members.
A query in any popular search engine — ie, Google, Yahoo, or Bing — will bring up free options for reverse cell phone lookup. Common sites, linked to below, include Intelius, Reverse Phone Directory and 411 Cell Phone Directory.
Enter the cell phone number in the relevant field. The format should be 555-555-5555.
Click the “Lookup” button, and the website will show you the results—if it has the information in its database. If you get no results, move on to the next website.