A reverse lookup on phone numbers

Try a free cell phone directory - These free directories have been around for several years and can garner results, but are more miss then hit. They are free because the users are the people who supply the name, number, and address on a volunteer basis. Because the information is given voluntarily these sites are not well populated with cell numbers and their owners to reverse lookup phone number.  Hire a private investigator - A P.I. can run a reverse search for you but it there will be a cost associated with this. Most of the time a private investigator will not charge you if their search is not successful. You will usually end up spending anywhere from $50 to $200 dollars for this type of service.