The Dex phone book is delivered once per year to households and businesses in the United States. This phone book is put out by Qwest and is typically only delivered to those in the Qwest service areas, which include 29 states. If you've misplaced, ruined or simply didn't receive the latest edition of the Dex phone book, you can easily order a new one from the DexKnows website.
If you're worried about identity thieves or stalkers getting your personal information from Yahoo's reverse telephone directory, you can opt out of the online listing to protect your privacy. The data in Yahoo's reverse telephone listings come from a third-party provider called Intelius, which gathers telephone, address and email data from white pages and phone books, as well as other sources. If your number isn't listed in your local telephone directory, you probably aren't listed in Yahoo's reverse directory. However, you can still submit an opt-out request as a precautionary measure.
CellPages.com reports that 17 million Americans do not have a land-based home phone line, only a cellular phone, and that 21 percent of adults under 24 years of age have a mobile phone only. The result is that it can be difficult to locate a phone number just by looking a person up in the white pages of a phone book. However, cell phone directories make it possible for people to locate a mobile phone number of someone they are trying to locate. Not every directory includes all cell phone numbers.