- 1). Use Whitepages.com to begin your search. Input the person's name and address to access the last public information available, including the telephone number. Many times, people will keep the same number, but request it be unpublished after the number was listed. Unpublished phone numbers that were once listed will be found in this directory.
- 2). Use the Google Phone Book search query to find the owner of a telephone number. In the Google search bar, type rphonebook: and the name of the person whose number you want to search. If the number was ever published, it will be listed here.
- 3). Search social networking sites. Many people will disclose their unpublished numbers in their member profiles on these sites so friends and family can contact them.
- 4). Hire a private investigator or pay for a professional search online. Some of the pay sites for finding unpublished telephone numbers include U.S.A. People Search, Acxiom, Intelius, Ameridex, People Data, People Finders, SwitchBoard, U.S. Search and PrivateEye.