No phone companies or cellular carriers currently publish a free or paid physical book that contains the names and cellphone numbers of individuals, as of 2015. However, it is possible to locate people and numbers using sites such as CellPages.com, Whitepages.com and NationalCelluarDirectory.com.
Prior to the advent of cellphones and the Internet, phone companies created physical directories of people's names and their phone numbers, though now due to the frequency with which numbers change, the most effective method is to use an online directory service. These companies use publicly available data to create profiles for individuals, tracking phone numbers along with addresses and approximate age. These sites typically provide the search service for free but place some limitations on the number of searches or the type of data available to free users. As with older print books, there is no guarantee that any site has the most up-to-date information for a person.
To search on CellPages.com, choose either the Search Name or Search Number option and enter the appropriate information to view its listing of related details. Whitepages.com offers a number and a name search tool, which requires a city and state or ZIP code to match information. NationalCelluarDirectory.com prompts visitors to enter a first and last name with a city and state to see the person's cell number.