To use a reverse cellphone finder, visit a site that offers reverse phone number lookup services; such sites include SpyDialer.com, PeopleSmart.com, ReversePhoneLookup.com and Whitepages.com. Yellowpages.com offers reverse phone number searches for business numbers.
At SpyDialer.com, enter the phone number in the field on the home page, click on the Search button, choose a lookup from those provided, and then click on the Search button. If the phone number is valid, the name and general location of the possible owner appears. The SpyDialer service works for both cellphones and landlines.
To look up a phone number at Whitepages.com, select the Phone option at the home page, enter the phone number in the field provided, and then click the Search button. If the phone number is valid, the result page displays information such as the carrier of the line and the state of the owner.
At PeopleSmart.com and ReversePhoneLookup.com, the lookup procedure is similar to that of Whitepages.com. However, at PeopleSmart, you must submit your name and email address to view the results. Premium members of PeopleSmart have access to more information, such as birth records, court records and work information. They also get alerts whenever the site updates information concerning saved searches.