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020 is the national dialling code for London in the United Kingdom. [1]

59 relations: All-figure dialling, Big Number Change, Birds of a Feather, Borehamwood, BT Group, Buckhurst Hill, Bushey, Carpenders Park, Central London, Chigwell, City of London, Colindale, Croydon, Director telephone system, Ealing, Elstree, Eltham, Ewell, Foreign and Commonwealth Office, Four Tet, General Post Office, Global Crossing, Greater London, Heathrow Airport, Ilford, Kingston upon Thames, Linked numbering scheme, List of telephone exchanges in London, London Borough of Bexley, London Borough of Bromley, London Borough of Croydon, London Borough of Enfield, London Borough of Havering, London Borough of Hillingdon, London boroughs, London Docklands, London postal district, Loughton, Mercury Communications, Mnemonic, Molesey, Ofcom, Orpington, Overlay plan, Oxford Street, PhONEday, Romford, Sewardstone, South Oxhey, Subscriber trunk dialling, ..., Telephone numbers in the United Kingdom, Thames Ditton, Thames Television, Tristan da Cunha, Trunk prefix, UK telephone code misconceptions, Uxbridge, Whyteleafe, Wood Green. Expand index (9 more) »

All-figure dialling

All-figure dialling was a telephone numbering plan introduced in the United Kingdom starting in 1966 that replaced the traditional system of using initial letters of telephone exchange names as the first part of a telephone number.

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Big Number Change

The Big Number Change addressed various issues with the telephone dialing plan in the United Kingdom, during the late-1990s and early-2000s.

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Birds of a Feather

Birds of a Feather (commonly abbreviated to BOAF) is a British sitcom originally broadcast on BBC One from 16 October 1989 to 24 December 1998, then revived on ITV from 2 January 2014.

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Borehamwood (—formerly spelt Boreham Wood), is a town in southern Hertfordshire.

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BT Group

BT Group plc (trading as BT and formerly British Telecom) is a British multinational telecommunications holding company with head offices in London, United Kingdom.

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Buckhurst Hill

Buckhurst Hill is a suburban town in the Epping Forest District of Essex.

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Bushey is a town in the Hertsmere borough of Hertfordshire in the East of England.

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Carpenders Park

Carpenders Park is a suburb of Watford in the Watford Rural parish of the Three Rivers district of Hertfordshire, England.

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Central London

Central London is the innermost part of London, in the United Kingdom, spanning several boroughs.

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Chigwell is a civil parish and town in the Epping Forest district of Essex.

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City of London

The City of London is a city and county that contains the historic centre and the primary central business district (CBD) of London.

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Colindale is an area which lies mainly within the London Borough of Barnet, although the western side of Colindale's main shopping street is within the London Borough of Brent.

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Croydon is a large town in south London, England, south of Charing Cross.

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Director telephone system

In a large city there may be multiple telephone exchanges serving subscibers within the boundary of the telephone system for that city, e.g. Manchester.

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Ealing is a district of west London, England, located west of Charing Cross.

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Elstree is a village in the Hertsmere borough of Hertfordshire, England.

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Eltham is a district of south east London, England, within the Royal Borough of Greenwich.

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Ewell is a suburban area in the borough of Epsom and Ewell in Surrey with a largely commercial village centre.

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Foreign and Commonwealth Office

The Foreign and Commonwealth Office (FCO), commonly called the Foreign Office, is a department of the Government of the United Kingdom.

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Four Tet

Kieran Hebden (born 1977), best known by the stage name Four Tet, is an English musician. Hebden first came to prominence as a member of the band Fridge before establishing himself as a solo artist. Hebden has remixed tracks by artists including Aphex Twin, Bicep, Explosions in the Sky, Super Furry Animals, Radiohead, Ellie Goulding, Lana Del Rey, Manic Street Preachers, Sia, Black Sabbath and Madvillain, and has produced two albums by psychedelic improvisational group Sunburned Hand of the Man. Hebden's recent output includes a number of improvisational works with jazz drummer Steve Reid and collaborations with Burial and Thom Yorke.

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General Post Office

The General Post Office (GPO) was officially established in England in 1660 by Charles II and it eventually grew to combine the functions of state postal system and telecommunications carrier.

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Global Crossing

Global Crossing was a telecommunications company that provided computer networking services and operated a tier 1 carrier.

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Greater London

Greater London is a region of England which forms the administrative boundaries of London, as well as a county for the purposes of the lieutenancies.

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Heathrow Airport

Heathrow Airport (also known as London Heathrow) is a major international airport in London, United Kingdom.

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Ilford is a large town in east London, located east of Charing Cross.

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Kingston upon Thames

Kingston upon Thames, also known as Kingston, is an area in the southwest of Greater London, England, southwest of Charing Cross.

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Linked numbering scheme

A linked numbering scheme (LNS) is a telephone numbering plan in effect in a service area within which call routing between subscriber lines on adjacent exchanges does not require a dialing code.

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List of telephone exchanges in London

This is a list of telephone exchanges located within Greater London.

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London Borough of Bexley

The London Borough of Bexley is a London borough in south-east London, England.

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London Borough of Bromley

The London Borough of Bromley is one of the 32 London boroughs that, along with the City of London, comprises Greater London.

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London Borough of Croydon

The London Borough of Croydon is a London borough in south London, England and is part of Outer London.

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London Borough of Enfield

The London Borough of Enfield is a London borough in north London, England.

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London Borough of Havering

The London Borough of Havering is a London borough in East London, England and forms part of Outer London.

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London Borough of Hillingdon

The London Borough of Hillingdon is a large borough located in Greater London, England which had a population of 273,936 according to the 2011 Census.

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London boroughs

The London boroughs are 32 of the 33 local authority districts of the Greater London administrative area (the 33rd is the City of London).

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London Docklands

London Docklands is the name for the riverfront and former docks in London, the capital of the United Kingdom.

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London postal district

The London postal district is the area in England of to which mail addressed to the LONDON post town is delivered.

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Loughton is a town and civil parish in the Epping Forest District of Essex and, for statistical purposes, part of the metropolitan area of London and the Greater London Urban Area.

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Mercury Communications

Mercury Communications was a national telephone company in the United Kingdom, formed in 1981 as a subsidiary of Cable & Wireless, to challenge the then-monopoly of British Telecom (BT).

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A mnemonic (the first "m" is silent) device, or memory device, is any learning technique that aids information retention or retrieval (remembering) in the human memory.

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Molesey is a suburban district comprising two large villages, East Molesey and West Molesey, in Surrey, England, just outside the edge of Greater London and situated on the south bank of the River Thames.

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The Office of Communications (Y Swyddfa Gyfathrebiadau), commonly known as Ofcom, is the UK government-approved regulatory and competition authority for the broadcasting, telecommunications and postal industries of the United Kingdom.

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Orpington is a town and electoral ward in the London Borough of Bromley, Greater London, England, at the south-eastern edge of London's urban sprawl.

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Overlay plan

In telecommunications, an overlay numbering plan is the practice of introducing a new area code by assigning it to an existing numbering plan area (NPA) that already has an area code assigned.

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Oxford Street

Oxford Street is a major road in the City of Westminster in the West End of London, running from Tottenham Court Road to Marble Arch via Oxford Circus.

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PhONEday was a change to the telephone dialing plan in the United Kingdom on 16 April 1995.

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Romford is a large town in East London and the administrative centre of the London Borough of Havering.

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Sewardstone is a hamlet in the civil parish of Waltham Abbey, in the Epping Forest District of Essex, England.

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South Oxhey

South Oxhey is a suburb of Watford in the Watford Rural parish of the Three Rivers district of Hertfordshire, England.

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Subscriber trunk dialling

Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a telephone system allowing subscribers to dial trunk calls without operator assistance.

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Telephone numbers in the United Kingdom

Telephone numbers in the United Kingdom are administered by the UK government's Office of Communications (Ofcom).

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Thames Ditton

Thames Ditton is a suburban village by and on the River Thames, in the Elmbridge borough of Surrey, England.

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Thames Television

Thames Television was a franchise holder for a region of the British ITV television network serving London and surrounding area on weekdays from 30 July 1968 until the night of 31 December 1992.

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Tristan da Cunha

Tristan da Cunha, colloquially Tristan, is both a remote group of volcanic islands in the south Atlantic Ocean and the main island of that group.

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Trunk prefix

A trunk prefix is a digit sequence to be dialed before a telephone number to initiate a telephone call for the purpose of selecting an appropriate telecommunications circuit by which the call is to be routed.

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UK telephone code misconceptions

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.

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Uxbridge is a town in west London, England, and the administrative headquarters of the London Borough of Hillingdon.

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Whyteleafe is a village in the district of Tandridge, Surrey, England, with a few streets falling inside the London Borough of Croydon.

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Wood Green

Wood Green is a suburban district of north London, England, within the London Borough of Haringey.

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Redirects here:

+44 20, 01 (telephone number), 0171, 0181, 020 (UK dial code), 020 (UK dialling code), 071, 081, Dialling code for London, London Director Area, London STD code, London Telecommunications Region, London Telephone Area, London telephone area, London telephone service, UK STD code 020, UK STD code 20, UK dial code 020.


[1] https://en.wikipedia.org/wiki/020

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