A telephone directory, also known as a telephone book, telephone address book, phone book, or the white/yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a subscriber identified by name and address to be found.
The advent of the Internet and smart phones in the 21st century greatly reduced the need for a paper phone book. Some communities, such as Seattle and San Francisco, sought to ban their unsolicited distribution as wasteful, unwanted and harmful to the environment. Another advantage of Internet phone directories over paper phone directories is that while paper phone directories tend to only contain listings within a certain geographical area, Internet phone directories can be used to find listings worldwide.
Subscriber names are generally listed in alphabetical order, together with their postal or street address and telephone number. In principle every subscriber in the geographical coverage area is listed, but subscribers may request the exclusion of their number from the directory, often for a fee; their number is then said to be "unlisted" (American English), "ex-directory" (British English), "private" or private number (Australia and New Zealand), or "non-published" (Canada).
A telephone directory may also provide instructions: how to use the telephone service, how to dial a particular number, be it local or international, what numbers to access important and emergency services, utilities, hospitals, doctors, and organizations who can provide support in times of crisis. It may also have civil defense or emergency management information. There may be transit maps, postal code/zip code guides, international dialing codes or stadium seating charts, as well as advertising.
In the US, under current rules and practices, mobile phone and voice over IP listings are not included in telephone directories. Efforts to create cellular directories have met stiff opposition from several fronts, including those who seek to avoid telemarketers.
A telephone directory and its content may be known by the color of the paper it is printed on.
- White pages generally indicates personal or alphabetic listings.
- Yellow pages, golden pages, A2Z, or classified directory is usually a "business directory", where businesses are listed alphabetically within each of many classifications (e.g., "lawyers"), almost always with paid advertising.
- Grey pages, sometimes called a "reverse telephone directory", allowing subscriber details to be found for a given number. Not available in all jurisdictions. (These listings are often published separately, in a "city directory, Polk directory, or under another name, for a price, and made available to commercial and government agencies.)
Telephone directories can be published in hard copy or in electronic form. In the latter case, the directory can be provided as an online service through proprietary terminals or over the Internet, or on physical media such as CD-ROM. In many countries directories are both published in book form and also available over the Internet. Printed directories were usually supplied free of charge.
This section requires expansion. (September 2011)
The first British telephone directory was published on 15 January 1880 by The Telephone Company. It contained 248 names and addresses of individuals and businesses in London; telephone numbers were not used at the time as subscribers were asked for by name at the exchange. The directory is preserved as part of the British phone book collection by BT Archives.
In 1938, AT&T commissioned the creation of a new type font, known as BELL GOTHIC, the purpose of which was to be readable at very small font sizes when printed on newsprint where small imperfections were common.
In 1991 the U.S. Supreme Court ruled (in Feist v. Rural) that telephone companies do not have a copyright on telephone listings, because copyright protects creativity and not the mere labor of collecting existing information.
In 1999, the first online telephone directories and people finding sites such as LookupUK.com go online in the UK. In 2003, more advanced UK searching including Electoral Roll become available on LocateFirst.com.
In the 21st century, printed telephone directories are increasingly criticized as waste. In 2012, after some North American cities passed laws banning the distribution of telephone books, an industry group sued and obtained a court ruling permitting the distribution to continue. Manufacture and distribution of telephone directories produces over 1,400,000 metric tons of greenhouse gases and consumes over 600,000 tons of paper annually.
A reverse telephone directory is sorted by number, which can be looked up to give the name and address of the subscriber.
In popular culture
Ripping phone books in half has often been considered a feat of strength. The Guinness World Record for ripping the most telephone directories is 27; the record for French telephone directories is 29, held by Georges Christen.
- Yellow Pages ruling endangers SF ban, Heather Knight, San Francisco Chronicle, October 15, 2012; accessed March 19, 2013
- Appeals court rules against Seattle's curbs on yellow pages, Emily Heffter, Seattle Times, October 15, 2012; accessed March 19, 2013
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