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E2 - Bethnal Green, Haggerston, Shoreditch, Cambridge Heath
E5 - Upper Clapton, Lower Clapton, Leyton, Stoke Newington
E77 - Whitechapel
E8 - Hackney Central, Dalston, London Fields
E9 - Homerton, Hackney Wick, South Hackney, Hackney Marshes, Victoria Park
EC1A - St Bartholomew's Hospital
EC1M - Clerkenwell, Farringdon
EC1N - Hatton Garden
EC1P - Non-geographic
EC1R - Finsbury, Finsbury Estate
EC1V - Finsbury, Moorfields Eye Hospital
EC1Y - St Luke's, Bunhill Fields
EC2A - Shoreditch
EC2M - Broadgate, Liverpool Street
EC2N - Old Broad Street, Tower 42
EC2P - Non-geographic
EC2R - Bank of England
EC2V - Guildhall
EC2Y - Barbican
EC3A - St Mary Axe, Aldgate
EC3M - Leadenhall, Lloyd's of London, Fenchurch Street
EC3N - Tower Hill, Tower of London
EC3P - Non-geographic
EC3R - Monument, Billingsgate
EC3V - Royal Exchange, Lombard Street
EC4A - Fetter Lane
EC4M - St Paul's
EC4N - Mansion House
EC4P - Non-geographic
EC4R - Cannon Street
EC4V - Blackfriars
EC4Y - Temple
EC50 - Non-geographic
N1 - Barnsbury, Canonbury, Kings Cross, Islington, Pentonville, De Beauvoir Town, Hoxton
N15 - South Tottenham, Harringay, West Green, Seven Sisters, Stamford Hill
N16 - Stoke Newington, Stamford Hill, Shacklewell, Dalston, Newington Green
N17 - Tottenham, South Tottenham
N19 - Upper Holloway, Archway, Tufnell Park, Hornsey
N1P - Non-geographic
N4 - Finsbury Park, Manor House, Harringay, Stroud Green
N5 - Highbury, Highbury Fields
N6 - Highgate, Hampstead Heath
N7 - Holloway, Barnsbury, Islington, Tufnell Park
N8 - Hornsey, Crouch End, Harringay
NW1 - Euston, Camden Town, Somers Town, Primrose Hill, Gospel Oak, Lisson Grove
NW1W - Non-geographic, Euston
NW5 - Kentish Town, Tufnell Park, Dartmouth Park, Gospel Oak
W10 - North Kensington, Queens Park
WC1A - New Oxford Street
WC1B - Bloomsbury, British Museum
WC1E - University College London
WC1H - St Pancras
WC1N - Great Ormond Street Hospital
WC1R - Gray's Inn
WC1V - High Holborn
WC1X - Kings Cross, Finsbury (west)
WC2A - Lincoln's Inn Fields, Royal Courts of Justice