020 Area Code

London phone numbers

Google Map of area

UK area code 020 covers most of London and its immediate surrounds.

Inner London 020 number areas

Coverage includes: Balham, Battersea, Bayswater, Belgravia, Bermondsey, Bishopsgate, Brixton, Canary Wharf, Canonbury, Catford, Chelsea, Clapton, Clerkenwell, Covent Garden, Deptford, Dulwich, Earl's Court, Eltham, Euston, Fleet Street, Forest Hill, Fulham, Gipsy Hill, Greenwich, Grove Park, Hackney, Hammersmith, Hampstead, Holborn, Kensington Gardens, Kentish Town, Kidbrooke, King's Cross, Kingsland Green, Lee Green, Lower Holloway, Maida Vale, Marylebone, Mayfair, Mile End, Monument, Moorgate, New Cross, Nine Elms, North Paddington, Paddington, Parsons Green, Pimlico, Poplar, Primrose Hill, Putney, Rushey Green, Shepherd's Bush, Shoreditch, Sloane. Soho, South Kensington, South Bank, Southwark, Stamford Hill, Stepney, Streatham, Sydenham, Tulse Hill, Upper Holloway, Vauxhall, Walworth, Wandsworth, Wapping, West Kensington, Westminster, Whitehall and Woolwich.

Outer London 020 number areas

Coverage includes: Acton, Addiscombe, Albert Dock, Barnet, Barking, Barnes, Beckenham, Beulah Hill, Bexley, Bexleyheath, Bowes Park, Brentford, Carshalton, Coulsdon, Chessington, Chingford, Chislehurst, Chiswick, Colindale, Cricklewood, Crouch End, Croydon, Dagenham, Ealing, East Ham, Edgware, Edmonton, Enfield, Feltham, Finchley, Gants Hill, Golders Green, Goodmayes, Greenford, Hainault, Harlesden, Harrow, Hatch End, Hayes, Hayes Common, Hendon, Highams Park, Hornsey, Hounslow, Ilford, Isleworth, Kensal Green, Kenton Road, Kew, Kingsbury, Kingston upon Thames, Leyton, Leytonstone, Malden, Merton Park, Mill Hill, Mitcham, Mortlake, Muswell Hill, New Malden, New Southgate, Norbury, North Cheam, North Edgware, North Finchley, North Wembley, Northolt, Palmers Green, Perivale, Pinner, Ponders End, Purley, Richmond upon Thames, Sanderstead, Sidcup, Slade Green, South Harrow, Southall, Southgate, Stanmore, Stratford, Surbiton, Sutton, Teddington, Thamesmead, Thornton Heath, Tottenham, Twickenham, Upton Park, Wallington, Walthamstow, Wanstead, Wembley, West Ham, West Wickham, Willesden, Wimbledon, Winchmore Hill, Wood Green, Woodford and Worcester Park.

Areas outside London with 020 numbers

Coverage includes: Borehamwood, Bushey, Bushey Heath, Chigwell, Elstree, Ewell, Loughton, Molesey and Thames Ditton.

020 number call costs

020 numbers are normal, landline numbers charged at standard rates.

Formatting an 020 number

020 numbers should be displayed in the format 020 xxxx xxxx or (020) xxxx xxxx, with the first space always placed between '020' and the eight-digit local number.

For international callers, use: +44 20 xxxx xxxx.

0203 numbers, 0207 numbers and 0208 numbers should all be written as above; formats such as '0207 xxx xxxx' are incorrect. [Why?]

Notes and links

The 020 area code has existed since April 2000, when it replaced the older 0171 and 0181 area codes. As of 2014, standard local numbers begin with 3, 7 or 8.

Recent history

1958Beginnings of 'subscriber trunk dialling'. Over the next decade, London standardises on 7-digit numbers and the area code 01. For example: 01-222 1234
1990London area splits into two: 071 area code for inner London and 081 code for outer London. No change to local numbers.
1995Area codes change to 0171 and 0181 respectively. No change to local numbers.
2000Former inner and outer London areas reunited under single London-wide code of 020. Local numbers lengthened from seven to eight digits be prefixing with '7' in inner London or '8' in outer London.
2005Local numbers beginning with 3 introduced.

By April 2014, all available London numbers starting with '7' had been issued to telephone companies, along with 89% of those starting with '8' and 75% of numbers beginning with '3'.

Assuming similar levels of demand for London phone numbers continue, it is likely that a new batch of London numbers such as (020) 4 or (020) 5 will need to be made available by around 2019.