Why Domex?

EC1, EC2, EC3, EC4, WC1, WC2, N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14, N15, N16, N17, N18, N19, N20, N21, N22, W1, W2, W3, W4, W5, W6, W7, W8, W9, W10, W11, W12, W13, W14, SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, NW1, NW2, NW3, NW4, NW5, NW6, NW7, NW8, NW9, NW10, NW11, NW12, E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13, E14, E15, E16, E17, E18, SE1, SE2, SE3, SE4, SE5, SE6, SE7, SE8, SE9, SE10, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE20, SE21, SE22, SE23, SE24, SE25, SE26, SE27, SE28, SM1, SM2, SM3, SM4, SM5, SM6, SM7, KT1, KT2, KT3, KT4, KT5, KT6, KT7, KT8, KT9, KT10, KT11, KT12, KT13, KT14, KT15, KT16, KT17, KT18, KT19, KT20, KT21, KT22, KT23, KT24, CR0, CR2, CR3, CR4, CR5, CR6, CR7, CR8, UB1, UB2, UB3, UB4, UB5, UB6, UB7, UB8, UB9, UB10, UB11, UB18, HA0, HA1, HA2, HA3, HA4, HA5, HA6, HA7, HA8, HA9, TW1, TW2, TW3, TW4, TW5, TW6, TW7, TW8, TW9, TW10, TW11, TW12, TW13, TW14, TW15, TW16, TW17, TW18, TW19, TW20, Central London, Westminster, Barbican, Belgravia, Bloomsbury, Clerkenwell, Covent Garden, Grays Inn, Holborn, Monument, Moorgate, Shoreditch, Soho, St Marys Cray, St Pauls Cray, St. Pauls, Tower Hill, West End, Islington, East Finchley, Finchley Central, Finsbury Park, Highbury, Highgate, Lower Holloway, Crouch End, Lower Edmonton, Muswell Hill, Friern Barnet, North Finchley, Palmers Green, Southgate, South Tottenham, Stoke Newington, Tottenham, Upper Edmonton, Upper Holloway, Totteridge/Whetstone, Winchmore Hill, Wood Green, Alexandra Palace, Archway, Barnet, Barnsbury, Canonbury, Cockfosters, East Barnet, Enfield Park, Enfield, Epping Forest, Finsbury, Fortis Green, Hampstead Garden Suburb, Hendon, Holloway, Hornsey, Kentish Town, Manor House, New Barnet, New Southgate, Pinner Green, Pinner, Ponders End, Potters Bar, Seven Sisters, Totteridge, Tufnell Park, Whetstone, Woodford Green, Woodside Park, Bayswater, Paddington, Acton, Chiswick, Hammersmith, Hanwell, Kensington, Maida Vale, Ladbroke Grove, North Kensington, Notting Hill, Holland Park, Shepherds Bush, West Ealing, West Kensington, Addlestone, Bayswater, Brook Green, Charlton, Ealing, East Molesley, Eastcote, Elsham, Greenford, Hanger Lane, Holland Park, Isleworth, Kensal Green, Ladbroke Grove, Marylebone, Mayfair, North Kensington, Notting Hill, Osterley, Paddington, Perivale, Queens Park, Strand, Uxbridge, Warwick Avenue, West Brompton, Knightsbridge, Belgravia, Pimlico, Brixton, Streatham Hill, Chelsea, Brompton, Clapham, Earls Court, Fulham, Parsons Green, South Kensington, Stockwell, Brixton, West Brompton, Worlds End, Battersea, Clapham Junction, Balham, Barnes, Castelnau, Mortlake, East Sheen, Putney, Roehampton, Streatham, Norbury, Tooting, Wandsworth Common, Wandsworth, Earlsfield, Wimbledon, South Wimbledon, Raynes Park, Barnes, Battersea, Beddington Corner, Beddington, Brentford, Brixton, Brompton, Carshalton, Castelnau, Chelsea, Chertsey, Chessington, Clapham Junction, Claygate, Earlsfield, East Sheen, Epsom Downs, Epsom, Esher, Ewell, Fulham, Hook, Kew Gardens, Kew, Kingston, Kingston-upon-Thames, Merton, Mitcham, Morden, Mortlake, Nine Elms, Parsons Green, Pimlico, Putney, Raynes Park, Richmond, South Lambeth, South Wimbledon, Southfields, Stockwell, Streatham Hill, Streatham, Teddington, Tooting, Tulse Hill, Twickenham, Wandsworth, Weston Green, Woodmansterne, Worcester Park, Worlds End, Camden Town, Regents Park, Cricklewood, Neasden, Hampstead, Swiss Cottage, West Hampstead, Kilburn, Queens Park, Mill Hill, St Johns Wood, Colindale, Kinsbury, Willesden, Harlesden, Kensal Green, Golders Green, Hampstead Garden Suburb, Brent Cross, Camden Town, Colindale, Cricklewood, Golders Green, Greenhill, Hampstead Heath, Hampstead, Harlesden, Harrow on the hill, Harrow, Havering, Kilburn, Kingsbury, Neasden, Northolt, Regents Park, Sudbury, Swiss Cottage, Temple Fortune, Wembley, West Hampstead, Willesden, Whitechapel / Stepney, Bethnal Green, Bow, Chingford, Clapton, East Ham, Forest Gate, Hackney, Homerton, Leyton, Leytonstone, Manor Park, Plaistow, Isle Of Dogs / Docklands / Poplar, Stratford, North Woolwich / Silvertown / Victoria Docks, Walthamstow, South Woodford, Aldgate, Barking, Becontree, Bexley, Bromley, Bromley-by-Bow, Buckhurst Hill, Canning Town, Chigwell, Dagenham, Dalston, East End, Grange Hill, Hainault, Highams Park, Isle of Dogs, Millwall, North Woolwich, Poplar, Redbridge, Stamford Hill, Stepney, Upper Wandsworth, Upton Park, West Ham, Whitechapel, Woodford, Waterloo, Bermondsey, Southwark, Borough, South Bank, Lambeth, Thamesmead, Blackheath, Brockley, Camberwell, Catford, Deptford, Eltham, Greenwich, Kennington, Lee, Lewisham, New Cross, Peckham, Rotherhithe, Walworth, Woolwich, Crystal Palace, Anerley / Penge, Dulwich, East Dulwich, Forest Hill, Herne Hill, South Norwood, Sydenham, West Norwood, Abbey Wood, Addington, Anerley, Beckenham, Bellingham, Borough, Chislehurst, Crofton Park, Cross, Croydon, East Croydon, Elephant & Castle, Eltham Park, Foots Cray, Grove Park, Hither Green, Honor Oak Park, Lambeth, New Cross Gate, Nunhead, Penge, Plumstead, Shirley, Sidcup, South Bermonsey, South Croydon, Southwark, Upper Norwood, Waterloo, Westcombe Park, Luton, Harpenden, Hemel Hampstead, St. Albans, Stevenage, Milton Keynes, Chesham, Amersham, Hillington, Maidenhead, Colnbrook, Slough, Staines, Southall, East London, Southeast London, Northwest London, Southwest London, West London, North London, Near London, Surrey, Hounslow, Romford, Sutton, Wallington, Banstead, Cheam, New Malden, Surbiton, Thames Ditton, West Molesley, Esham, Cobham, Walton on Thames, Weybridge, West Byfleet, Tadworth, Ashtead, Leatherhead, Thornton Heath, Purley, Coulsdon, Kenley, Caterham, Warlingham, HAYES, WEST DRAYTON, RUISLIP, NORTHWOOD, STANMORE, EDGWARE, St. Margarets, Strawberry Hill, Whitton, Maswell Park, Lampton, Hounslow West, Hounslow Heath, Heston, Heathrow, North Sheen, Ham, Petersham, Hampton, Feltham, Hanworth, Hatton, Ashford, Sunbury-on-Thames, Shepperton, Egham Hythe, Stanwell, Wraysbury, Egham, Englefield Green