020 View Map of the London Area Code
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The London 020 Area Code (London Dialling Code)

The 020 area code is a 2 digit geographical dialling code (excluding the zero) used in telecommunications for the London area.

The local telephone numbers within the 020 are 8 digits long.

The correct format in which to write a telephone number from the London area code is (020) [x][x][x][x] [x][x][x][x].

Where is the 020 Area Code?

The London 020 dialling code intersects the counties of Greater London, City and County of the City of London, Hertfordshire, Essex and Surrey in the London and East of England and South East Regions of the UK.

When do I need to use the 020 London dialling code?

You will need to use a dialling code if you are calling from a mobile phone or a landline outside of the 020 London dialling code area. If you are calling a local number within the same area code with a landline telephone you do not need to use the 020 dialling code.

Phoning the 020 Dialling Code from Outside of the UK

If you are calling from outside of the UK. You will need to add the code for dialling internationally. This varies country to country, followed by the UK country code (44) followed by the area code without the initial zero (20).

RegionInternational PrefixCountry CodeArea Code
United States and Canada0114420
Europe004420
Australia00114420

Origins of the 020 London Area Code

Before the 16th April 1995 known as PhONEday which changed telephone area codes by inserting a 1 at the beginning. The area code was 071 and 081.

The area code for inner (0171) and outer London (0181) merged to become 020 after the Big Number Change of the 22nd April 2000.

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Map of the 020 London dialling Code Area

The shaded area on the map represent the estimated extent of the 020 London phone area code.

The blue icons on the map represent the locations of telephone exchanges serving the 020 area. Click on an icon for more details

Map of the London area code
Map of the London area code and surrounding areas

Towns and Villages within the London 020 dialling Code

Barking and Dagenham
Barnet
Bexley
Borehamwood
Brent
Bromley
Bushey
Camden
Chigwell
City of London
City of Westminster
Crews Hill
Croydon
Dorking
Ealing
Egham
Elstree
Enfield
Epping
Epsom
Esher
Ewell
Greenwich
Hackney
Hammersmith and Fulham
Haringey
Harlow
Hillingdon
Hounslow
Islington
Kensington and Chelsea
Kingston upon Thames
Lambeth
Lewisham
Loughton
Merton
New Addington
Newham
Redbridge
Richmond upon Thames
Southwark
Sutton
Tower Hamlets
Waltham Forest
Wandsworth
Watford

Known Telephone Exchanges within the London 020 dialling Code

BERMONDSEY T E (CLBER)
BISHOPSGATE T E (CLBIS)
CANONBURY ATE (CLCAN)
CLERKENWELL T E (CLCLE)
COVENT GARDEN T E (CLCOV)
EUSTON T E (CLEUS)
KENTISH TOWN ATE (CLKEN)
KINGSLAND GREEN T E (CLKLG)
HARRISON STREET TE (CLKXX)
LOWER HOLLOWAY ATE (CLLOW)
MONUMENT T E (CLMON)
SHOREDITCH T E (CLSHO)
SOUTHWARK T E (CLSOU)
STEPNEY GREEN T E (CLSTE)
UPPER HOLLOWAY ATE (CLUPP)
WALWORTH NEW TE (CLWAL)
BAYNARD HOUSE (CLWOO)
BARKING ATE (LNBKG)
BOWES PARK ATE (LNBPK)
CROUCH END ATE (LNCED)
EDMONTON ATE/AMC (LNEDM)
ENFIELD ATE (LNENF)
FINCHLEY ATE (LNFIN)
GOODMAYES ATE (LNGDM)
GANTS HILL ATE (LNGHL)
HACKNEY ATE (LNHAC)
HIGHAMS PARK ATE (LNHPK)
ILFORD CENTRAL ATE (LNILC)
ILFORD NORTH ATE (LNILN)
LEYTONSTONE ATE (LNLEY)
MILE END ATE (LNMED)
NORTH FINCHLEY ATE (LNNFN)
NEW SOUTHGATE ATE (LNNWS)
PALMERS GREEN ATE (LNPGN)
PONDERS END ATE (LNPON)
POPLAR ATE (LNPOP)
STRATFORD ATE (LNSTF)
TOTTENHAM ATE (LNTOT)
UPTON PARK ATE (LNUPK)
BALHAM TE (LSBAL)
BECKENHAM TE (LSBEC)
BEXLEYHEATH TE (LSBEX)
BROMLEY TE (LSBRO)
SOUTH CLAPHAM TE (LSCLPM)
RYLAND HOUSE (CROYDON SSC) (LSCRO)
CATFORD TE (LSCTFD)
DEPTFORD TE (LSDEP)
DULWICH TE(1) (LSDUL)
ELTHAM TE (LSELT)
GREENWICH TE (LSGRNW)
GROVE PARK TE(1) (LSGRO)
KINGSTON TE (LSKIN)
MITCHAM TE (LSMIT)
RUSHEY GREEN TE (LSRUS)
SANDERSTEAD TE (LSSAN)
SIDCUP TE (LSSID)
SYDENHAM TE (LSSYD)
THORNTON HEATH TE (LSTHO)
WALLINGTON TE (LSWAL)
CHISWICK T E (LWCHI)
COLINDALE HOUSE SSC (LWCOL)
CRICKLEWOOD T E (LWCRI)
EALING TE (LWEAL)
ELSTREE TE (LWELS)
FELTHAM T E (LWFEL)
GOLDERS GREEN T E (LWGOL)
HAMMERSMITH T E (LWHAM)
HARLESDEN TE (LWHARL)
HATCH END T E (LWHAT)
HAYES NORTH ATE (LWHAY)
HENDON WEST T E (LWHEN)
ISLEWORTH TE (LWISL)
KINGSBURY T E (LWKIN)
KNELLER HALL T E (LWKNE)
KENTON ROAD T E (LWKROA)
NORTH WEMBLEY T E (LWNWEM)
PERIVALE T E (LWPER)
PINNER ATE (LWPIN)
SOUTH HARROW T E (LWSHAR)
SKYPORT TE (LWSKY)
SOUTHALL T E (LWSOU)
TWICKENHAM T E (LWTWI)
WEMBLEY T E (LWWEM)
WILLESDEN TE (LWWIL)
BAYSWATER TE (WEWBAY)
MUSEUM TE (WEWBLO)
HAMPSTEAD TE (WEWHAM)
LORDS TE (WEWLOR)
MARYLEBONE TE (WEWMAR)
MAYFAIR TE (WEWMAY)
BURNE HOUSE(NTH.PADDINGTON TE) (WEWNPN)
PADDINGTON TE (WEWPAD)
PRIMROSE HILL TE (WEWPRI)
GERRARD TE (WEWSOH)
CHELSEA TE (WRCHEL)
FULHAM TE (WRFULM)
KENSINGTON GARDENS TE (WRKGDN)
NINE ELMS TE (WRNELMS)
PIMLICO T E (WRPIM)
SOUTH KENSINGTON TE (WRSLO)
COLOMBO HOUSE (WRSTHBK)
VAUXHALL TE (WRVAUX)
WHITEHALL TE (WRWHI)
WESTMINSTER ATE (WRWMIN)
FARADAY BUILDINGS (CLMOO)
NEW CROSS T E (CLNEW)
WAPPING T E (CLWAP)
ALBERT DOCK ATE (LNADK)
BARNET ATE (LNBAR)
CHINGFORD ATE (LNCHF)
DAGENHAM ATE (LNDAG)
HAINAULT ATE (LNHAI)
LOUGHTON ATE (LNLOU)
MUSWELL HILL ATE (LNMUS)
STAMFORD HILL ATE (LNSTA)
WOODFORD ATE (LNWFD)
WINCHMORE HILL T E (LNWIN)
WANSTEAD ATE (LNWSD)
ADDISCOMBE TE (LSADD)
CHISLEHURST TE (LSCHI)
EWELL TE (LSEWE)
FOREST HILL TE (LSFOR)
GIPSY HILL TE (LSGIP)
HAYES COMMON TE (LSHAY)
KIDBROOKE TE (1) (LSKID)
LEE GREEN TE (LSLEE)
MALDEN TE (LSMAL)
MERTON PARK TE (LSMEPK)
MOLESEY TE(1) (LSMOL)
MORTLAKE TE (LSMOR)
NORTH CHEAM TE (LSNCHM)
NORBURY TE (LSNOR)
PURLEY TE(1) (LSPUR)
RICHMOND TE (LSRIC)
STREATHAM TE (LSSTR)
SURBITON TE (LSSUR)
TEDDINGTON TE (LSTED)
THAMES DITTON TE (LSTHDT)
THAMESMEAD TE (LSTHMD)
TULSE HILL TE (LSTUL)
WIMBLEDON TE (LSWIM)
WOOLWICH TE (LSWOO)
WORCESTER PARK TE (LSWOR)
WEST WICKHAM TE(1) (LSWWKM)
ACTON T E (LWACT)
BUSHEY HEATH T E (LWBUS)
HARROW T E (LWHARR)
MILL HILL TE (LWMIL)
NORTH EDGWARE T E (LWNEDG)
NORTHOLT T E (LWNOR)
STANMORE T E (LWSTAN)
BRIXTON TE (WRBRIX)
PARSONS GREEN TE (WRPGRN)
CLAPTON TE (LNCLA)
MILL HOUSE (L/ILFORD S S C ) (LNILC,LNROD)
CHESSINGTON TE (LSCHES)