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411 is a telephone number for local directory assistance in Canada and the United States. Until the early 1980s, 411 – and the related 113 number – were free to call in most jurisdictions. In the United States, the service is commonly known as "information", [ 1 ] although its official name is "directory assistance".
On 1 July 2009, telephone numbers in Karachi and Lahore were changed from seven digits to eight digits. This was accomplished by adding 9 to the beginning of all phone numbers that started with a 9 i.e. government and semi-government lines and adding 3 to all other lines. [1] [2] [clarification needed]
112 – emergency number across the European Union and on GSM mobile networks across the world; 119 – emergency number in Jamaica and parts of Asia; 122 – emergency number for specific services in several countries; 911 – emergency number in North America and parts of the Pacific; 999 – emergency number in many countries
Companies requested to have their toll-free number listed, and paid the providers each time their phone number was released to a toll-free directory-assistance caller. In 1999, AT&T applied for permission to discontinue this service, [ 2 ] but it remained active until the summer of 2020.
A telephone directory, commonly called a telephone book, telephone address book, phonebook, 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. Its purpose is to allow the telephone number of a subscriber identified by ...
Spy Dialer is a free reverse phone lookup service that accesses public databases of registered phone numbers to help users find information on cell phone and landline numbers and emails.
411 and 611 are supported by the service provider for the calling phone, but not all carriers provide these services. 411 and 611 (formerly 811) are typically blocked within enterprise or private branch exchange (PBX) systems, including cellular telephone service purchased for an enterprise system, since 411 calls generally incur a fee and the ...
On 1 July 2009, telephone numbers in Karachi and Lahore were changed from seven digits to eight digits. This was accomplished by adding the digit 9 to the beginning of any phone number that started with a 9 (government and semi-government connexions), and adding the digit 3 to any phone numbers that did not start with the number 9. [1]