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Geographic telephone numbers in the UK always have nine or ten digits after the 0 trunk code or +44 international dialling prefix.
This is a list of telephone dialling codes in the United Kingdom, which adopts an open telephone numbering plan for its public switched telephone network. The national telephone numbering plan is maintained by Ofcom, an independent regulator and competition authority for the UK communications industries. This list is based on the official standard, but includes defunct codes and historical ...
Country calling codes, country dial-in codes, international subscriber dialing ( ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks. Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The ...
From the introduction of the telephone in the late 1870s, [5] to the early 1990s, telephone numbers in most of the United Kingdom were usually shown with a written exchange name followed by the subscriber number, e.g. 'Mallaig 10' or 'Aberdeen 43342'. This allowed calls to be placed initially through the operator and later by using local or ...
Widespread UK telephone code misconceptions, in particular brought on by the Big Number Change in 2000, have been reported by regulator Ofcom since publication of a report it commissioned in 2004.
This page was last edited on 13 April 2024, at 23:35 (UTC).
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom ( UK) or Britain, [m] is a country in Northwestern Europe, off the coast of the continental mainland. [21] [22] It comprises England, Scotland, Wales, and Northern Ireland. [n] [23] The UK includes the island of Great Britain, the north-eastern part of the island of Ireland, and most of the smaller ...
Since the greatest prime factor of 44 2 + 1 = 1937 is 149 and thus more than 44 twice, 44 is a Størmer number. [3] Given Euler's totient function, φ (44) = 20 and φ (69) = 44.