Map of the 020 London STD dialling 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) xxxx xxxx.

Where is the 020 Area Code?

The London 020 dialling code intersects the counties of Barking and Dagenham, Barnet, Bexley, Brent, Bromley, Camden, Croydon, Ealing, Enfield, Essex, Greenwich, Hackney, Hammersmith and Fulham, Haringey, Harrow, Hertfordshire, Hillingdon, Hounslow, Islington, Kensington and Chelsea, Kingston upon Thames, Lambeth, Lewisham, London City, Merton, Newham, Redbridge, Richmond upon Thames, Southwark, Surrey, Sutton, Tower Hamlets, Waltham Forest, Wandsworth and Westminster in the East of England and London 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.

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 020 London area code
Map of the 020 London area code and surrounding areas

Towns and Villages within the London 020-London 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-London dialling Code

Chislehurst (LSCHI) London
Bromley (LSBRO) London
Hayes Common (LSHAY) London
Beckenham (LSBEC) London
West Wickham (LSWWKM) London
Sanderstead (LSSAN) London
Mitcham (LSMIT) London
Thornton Heath (LSTHO) London
Purley (LSPUR) London
Croydon (LSCRO) London
Addiscombe (LSADD) London
Sidcup (LSSID) London
Bexleyheath (LSBEX) London
Stepney Green (CLSTE) London
Shoreditch (CLSHO) London
Bishopsgate (CLBIS) London
Wapping (CLWAP) London
Wanstead (LNWSD) London
Canary Wharf (LNCNW) London
Poplar (LNPOP) London
Docklands Zone Two (LNDZ2) London
Stratford (LNSTF) London
Albert Dock (LNADK) London
Highams Park (LNHPK) London
Walthamstow (LNWTH) London
Mile End (LNMED) London
Chingford (LNCHF) London
Kingsland Green (CLKLG) London
Hackney (LNHAC) London
Clerkenwell (CLCLE) London
Moorgate (CLMOO) London
Monument (CLMON) London
Faraday (CLFAR) London
Wood Street (CLWOO) London
Enfield (LNENF) London
Ponders End (LNPON) London
Barnet (LNBAR) London
South Harrow (LWSHAR) London
Kenton Road (LWKROA) London
Hatch End (LWHAT) London
Pinner (LWPIN) London
Stanmore (LWSTAN) London
Edgware (LWEDG) London
North Edgware (LWNEDG) London
Wembley (LWWEM) London
North Wembley (LWNWEM) London
Ilford Central (LNILC) London
Ilford North (LNILN) London
Loughton (LNLOU) Essex
Barking (LNBKG) London
Goodmayes (LNGDM) London
Gants Hill (LNGHL) London
Hainault (LNHAI) Essex
Woodford (LNWFD) London
Ewell (LSEWE) Surrey
Kingston (LSKIN) London
Malden (LSMAL) London
Worcester Park (LSWOR) London
Surbiton (LSSUR) London
Thames Ditton (LSTHDT) Surrey
Chessington (LSCHES) London
Muswell Hill (LNMUS) London
New Southgate (LNNWS) London
North Finchley (LNNFN) London
Palmers Green (LNPGN) London
Stamford Hill (LNSTA) London
Tottenham (LNTOT) London
Edmonton (LNEDM) London
Winchmore Hill (LNWIN) London
Bowes Park (LNBPK) London
Finchley (LNFIN) London
Upper Holloway (CLUPP) London
Canonbury (CLCAN) London
Lower Holloway (CLLOW) London
Crouch End (LNCED) London
Euston (CLEUS) London
North Paddington (WEWNPN) London
Kentish Town (CLKEN) London
Willesden (LWWIL) London
Harlesden (LWHARL) London
Golders Green (LWGOL) London
Cricklewood (LWCRI) London
Hampstead (WEWHAM) London
Hendon (LWHEN) London
Mill Hill (LWMIL) London
Primrose Hill (WEWPRI) London
Lords (WEWLOR) London
Colindale (LWCOL) London
Kingsbury (LWKIN) London
Dagenham (LNDAG) London
Southwark (CLSOU) London
Bermondsey (CLBER) London
Southbank (WRSTHBK) London
Greenwich (LSGRNW) London
Vauxhall (WRVAUX) London
Lee Green (LSLEE) London
New Cross (CLNEW) London
Walworth (CLWAL) London
Kidbrooke (LSKID) London
Woolwich (LSWOO) London
Beulah Hill (LSBEU) London
Thamesmead (LSTHMD) London
Gipsy Hill (LSGIP) London
Dulwich (LSDUL) London
Forest Hill (LSFOR) London
Sydenham (LSSYD) London
Catford (LSCTFD) London
Rushey Green (LSRUS) London
Deptford (LSDEP) London
Grove Park (LSGRO) London
Eltham (LSELT) London
Sutton Cheam (LSSUT) London
North Cheam (LSNCHM) London
Wallington (LSWAL) London
Earls Court (WRECT) London
Battersea (WRBATT) London
South Clapham (LSCLPM) London
Mortlake (LSMOR) London
Putney (LSPUT) London
Streatham (LSSTR) London
Norbury (LSNOR) London
Balham (LSBAL) London
Wandsworth (LSWAN) London
Merton Park (LSMEPK) London
Wimbledon (LSWIM) London
Whitehall (WRWHI) London
Westminster (WRWMIN) London
Pimlico (WRPIM) London
Belgravia (WRBEL) London
Sloane (WRSLO) London
Tulse Hill (LSTUL) London
South Kensington (WRSKEN) London
Chelsea (WRCHEL) London
Fulham (WRFULM) London
Nine Elms (WRNELMS) London
Brixton (WRBRIX) London
Twickenham (LWTWI) London
Teddington (LSTED) London
Molesey (LSMOL) London
Feltham (LWFEL) London
Kneller Hall (LWKNE) London
Hounslow (LWHOU) London
Skyport (LWSKY) London
Isleworth (LWISL) London
Richmond Kew (LSRIC) London
Southall (LWSOU) London
Hayes North (LWHAY) London
Northolt (LWNOR) London
Greenford (LWGRE) London
Kensal Green (LWKGRE) London
Shepherds Bush (LWSHE) London
West Kensington (WRWKEN) London
Mayfair (WEWMAY) London
Bloomsbury Aka Howland St (WEWBLO) London
Marylebone (WEWMAR) London
Paddington (WEWPAD) London
Bayswater (WEWBAY) London
Acton (LWACT) London
Chiswick (LWCHI) London
Perivale (LWPER) London
Ealing (LWEAL) London
Hammersmith (LWHAM) London
Kensington Gardens (WRKGDN) London
Maida Vale (WEWMAI) London
Kings Cross (CLKXX) London
Holborn (CLHOL) London
Covent Garden (CLCOV) London
Soho Aka Gerrard Street (WEWSOH) London
Bushey Heath (LWBUS) Hertfordshire
Elstree (LWELS) Hertfordshire