Cell phone numbers may be researched on websites that offer reverse phone lookup such as PeopleSmart or SpyDialer. Such websites usually provide the contact information, such as name and address, for a service fee.
Reverse phone lookup service providers find a phone owner's contact information by searching the Internet for information associated with the phone number or name, entered as a search term. These service providers search social media websites such as Facebook, LinkedIn to find their target person. Other places they search include blogs, forums newspaper articles.
Most reverse phone lookup websites provide limited contact information for free, such as first name, home address or email address. Users generally have to pay a fee in order to get more detailed contact information.