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A telephone directory, commonly called a telephone book, telephone address book, phone book, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory.
The Authority for Consumers & Markets manages the available telephone and other numbers and assigns these to telecommunication companies, as well as being the regulatory body governing telecommunications providers in the Netherlands. De Telefoongids KPN telephone directory, combined white pages and yellow pages
The white pages were accessible for free on Minitel, and they could be searched much faster than flipping through a paper directory. According to the PTT, during the first eight years of nationwide operation 8 billion francs was spent on purchasing terminals, a profit of 3,5 billion francs was made after deduction of payments passed on to ...
Telephone exchange names were used in many countries, but were phased out for numeric systems by the 1960s. In the United States, the demand for telephone service outpaced the scalability of the alphanumeric system and after introduction of area codes for direct-distance dialing, all-number calling became necessary.
White pages give information about the business supplying the service. This includes the name of the business and a description of the business - potentially in multiple languages. Using this information, it is possible to find a service about which some information is already known (for example, locating a service based on the provider's name).
The first 1-3 digits (after +420) of the telephone number indicates location or network. For mobile phones, since there is number portability , the mobile phone code only indicates the original operator.
Fixed line numbers in Botswana are seven digits long in a closed telephone numbering plan, with the geographical area being indicated by the first two or three digits, meaning that there are no area codes. The country was allocated its own country code by the International Telecommunication Union, +267, in the late 1960s.
History. For many years, French subscribers' telephone numbers consisted of eight digits (including the one-digit area code 1 for all of Paris and its surrounding departments, or a two-digit area code from 20 to 99 for other metropolitan departments; this area code was dialed only after the trunk code 16).