Whitepages.com and Yellowpages.com provide the name and address associated with a telephone number in its database at no charge. Both websites provide results for landlines and some VoIP numbers but not for cellphones.
PhoneLookup.com and PeopleSmart.com provide the general location of a phone's owner based on the area code, but not the owner's name. Instead, they redirect users to another Web page or website to search for the owner's information. For example, as of 2015, PeopleSmart.com sends the user to a page that offers more information if the user signs up for a paid monthly membership. PhoneLookup.com sends him to Phone Detective, a site that charges flat fee for a single result or a monthly membership fee. The websites return any information contained in their databases, but do not guarantee results.
An alternate way to find the identity of a person or business based on a phone number is to enter the phone number in the search field on Facebook, reports CBS News. If the owner of the phone lists the phone number on his Facebook profile, the site sends the user to the person's Facebook page. Users must have a Facebook account to use the site, and other private information is shared only with the account owner's Facebook friends.