020 is the STD code for Greater London in the United Kingdom. Subscriber trunk dialling (STD) (also known as subscriber toll dialling) is an obsolete term for the UK telephone system allowing subscribers to dial trunk calls without operator assistance. ...

Coverage

The code does not cover all of the Greater London area, with some sections covered by adjacent codes. In some places the 020 code extends beyond the London boundary. The code covers an area larger than the London postal district with most places within 12 miles of Charing Cross covered by the code. The system of London postal districts predate the introduction of postcodes throughout the United Kingdom in the 1960s and have been adapted over time. ... The Victorian Eleanor Cross at Charing Cross The name Charing Cross, now given to a district of central London in the City of Westminster, comes from the original hamlet of Charing, where King Edward I placed a memorial to his wife, Eleanor of Castile. ...

Completely covered by 020

The City of London and the London boroughs of Barking and Dagenham, Barnet, Brent, Camden, Ealing, Enfield, Greenwich, Hackney, Hammersmith and Fulham, Haringey, Harrow, Hounslow, Islington, Kensington and Chelsea, Kingston upon Thames, Lambeth, Lewisham, Merton, Newham, Redbridge, Richmond upon Thames, Southwark, Sutton, Tower Hamlets, Waltham Forest, Wandsworth and the City of Westminster are completely covered by the code. Coat of arms The City of London is a small area in Greater London. ... The London Borough of Barking and Dagenham is a London borough in East London. ... The London Borough of Barnet is a London borough in North London and forms part of Outer London. ... The London Borough of Brent is a London borough in north west London and forms part of Outer London. ... The London Borough of Camden is an inner-London borough created in 1965 to replace the metropolitan boroughs of Hampstead, Holborn, St Pancras. ... The London Borough of Ealing is a London borough in the west of the city. ... Arms of Enfield London Borough Council The London Borough of Enfield is the most northerly London borough and forms part of Outer London. ... Arms of Greenwich London Borough Council The London Borough of Greenwich is a London borough in southeast London, formed in 1965 by merging the former metropolitan boroughs of Greenwich and most of Woolwich (with the exception of North Woolwich, north of the river, which became part of the London Borough... Hackney Town Hall was built in the 1930s for the old Metropolitan Borough. ... The front of Hammermith and Fulham town hall is an architects nightmare, with a new block bolted on to, and obscuring, what would have once been quite an appealing red-brick portico. ... Arms of the London Borough of Haringey The London Borough of Haringey is a London borough in North London and forms part of Outer London. ... The London Borough of Harrow is a London borough of outer northwest London. ... The London Borough of Hounslow is a London borough in west outer London. ... Arms of Islington London Borough Council Islington Town Hall Islington is a borough of London to the north of the City of London, west of Hackney, east of Camden, and south of Haringey. ... Arms of the Royal Borough of Kensington and Chelsea The Royal Borough of Kensington and Chelsea is a London borough in the west side of central London, created in 1965 from the former boroughs of Kensington and Chelsea. ... Arms of the Royal Borough of Kingston upon Thames The Royal Borough of Kingston upon Thames is a London borough in south-west London. ... Arms of Lambeth London Borough Council The London Borough of Lambeth is a London borough in South London and forms part of Inner London. ... At Lewisham High Street The London Borough of Lewisham is a London borough in southeast London. ... The London Borough of Merton is a London borough in south west London. ... Newham Town Hall in East Ham (E6) Arms of Newham London Borough Council Logo on the roadside at sunset The London Borough of Newham is a London borough in East London. ... The London Borough of Redbridge is a London borough in East London. ... The London Borough of Richmond upon Thames is a London borough in South West London and part of Outer London. ... The London Borough of Southwark is a London borough, located on the south side of the River Thames. ... Arms of Sutton London Borough Council The London Borough of Sutton is a London borough in outer southwest London. ... The Arms of The London Borough of Tower Hamlets The London Borough of Tower Hamlets is a London borough to the east of the City of London and north of the River Thames in East London. ... The London Borough of Waltham Forest is a London borough in north east London and forms part of Outer London. ... The London Borough of Wandsworth is a London borough in South West London and forms part of Inner London. ... The City of Westminster is a London borough with city status, situated to the west of the City of London and north of the River Thames. ...

Partly covered by other codes

The London Borough of Bexley is a London borough in southeast outer London. ... The London Borough of Bromley is a London Borough of outer southeast London. ... The London Borough of Croydon is a London borough in South London and part of Outer London. ... The London Borough of Havering is a London borough in East London and forms part of Outer London. ... The London Borough of Hillingdon is the westernmost London borough. ...

Outside London partly covered by 020

• Essex - Epping Forest
• Hertfordshire - Hertsmere
• Surrey - Elmbridge, Epsom and Ewell

Epping Forest is a local government district of the county of Essex, England. ... Hertsmere is a local government district and borough in Hertfordshire, England. ... Elmbridge is a borough in Surrey, England. ... Epsom and Ewell is a local government district with borough status in Surrey, England, covering Epsom and Ewell. ...

Sub ranges

History

020 replaced the 0171 and 0181 codes on 22 April 2000, after a period of dual-running which began 1 June 1999. Before May 1990 there had been a single area code of 01 which covered the same area as the current 020 code. Before this date the three digits after the code indicated the geographic area the number was located. e.g. 01-222 1234 was a number in Westminster, and 01-946 1234 was in Wimbledon. However, more than one sub-code was usually overlaid for each area such that all Wimbledon numbers did not necessarily begin 01-946. April 22 is the 112th day of the year in the Gregorian calendar (113th in leap years). ... This article is about the year 2000. ... June 1 is the 152nd day of the year in the Gregorian calendar (153rd in leap years), with 213 days remaining. ... 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ...

Between 1922 and 1966 the three digit sub-codes each corresponded to one area and were represented by letters by way of a mnemonic. The first exchange to become part of the London Director telephone system was Holborn. The numbers were written as ABBey 1234 and WIMbledon 1234. The system of mnemonics was withdrawn with the transition to all-figure dialling. Image File history File links History_of_london_std_codes. ... The Director System was introduced to six cities in the UK from 1922 following the introduction of the automatic telephone exchange in the UK in 1912. ... Holborn (pronounced ho-bun or ho-burn) is a place in London, named after a tributary to the river Fleet that flowed through the area, the Hole-bourne (the stream in the hollow). ...

See also

• 0207 & 0208

0207 and 0208 are non-existent telephone STD codes, which are commonly and incorrectly quoted in speech and writing by residents of the United Kingdom instead of the correct code of 020 for London. ...

External links

• List of exchanges in 1966