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This is a list of telephone dialling codes in the United Kingdom and the Crown Dependencies, 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.
List of United Kingdom dialing codes In the United Kingdom, telephone numbers are administered by the Office of Communications ( Ofcom ). For this purpose, Ofcom established a telephone numbering plan , known as the National Telephone Numbering Plan , which is the system for assigning telephone numbers to subscriber stations.
The UK Public Switched Telephone Network is divided up by area into National Number Groups (NNG's), and then further divided up into dialling codes.. The structure of UK telephone numbers is a leading zero (replaced with +44 for international calls from outside the UK) followed by the NNG — a 2, 3, 4 or 5 digit dialling code (digits SA in the example below) to different geographic areas of ...
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
Area codes in the United Kingdom (7 P) Pages in category "Telephone numbers in the United Kingdom" The following 19 pages are in this category, out of 19 total.
Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
NOTE: The United Kingdom adopts an open dialling plan for area codes within its public switched telephone network. Therefore, all area codes have a preceding 0 (zero) when dialling from within the United Kingdom. When dialling a UK number from abroad the zero is omitted and replaced by the calling country's international call prefix followed by ...