• 4d Interactive Ltd
  167-173 Wandsworth High Street, LONDON, Greater London, SW18 4JB
• A & R Telecom
  Unit 33 Drca Business Centre, Charlotte Despard Avenue, LONDON, Greater London, SW11 5HD
• A C I Ltd
  Crossbow House, 40 Liverpool Road, SLOUGH, Berkshire, SL1 4QZ
• A.C.P.Telecom Services
  34 South Lane, Ash, ALDERSHOT, Hampshire, GU12 6NG
• Aa Access Services Ltd
  Northumberland House 11 The Pavement Popes Lane, Ealing, LONDON, Greater London, W5 4NG
• Acropolis Capital Management Ltd
  73 Brook Street, LONDON, Greater London, W1K 4HX
• Act Teleconferencing Ltd
  Queens House, Kymberley Road, HARROW, Middlesex, HA1 1US
• Actix Ltd
  77 Fulham Palace Road, LONDON, Greater London, W6 8JA
• Advanced Telecom Networks Ltd
  531-533 High Road, WEMBLEY, Middlesex, HA0 2DJ
• Advantel Online
  27 Redan Place, LONDON, Greater London, W2 4SA
• Air Radio
  High Street, Harmondsworth, WEST DRAYTON, Middlesex, UB7 0BT
• Alicom Systems Ltd
  11 Eghams Court, Boston Drive, BOURNE END, Buckinghamshire, SL8 5YS
• Alison Townsend Ltd
  11 Eghams Court, Boston Drive, BOURNE END, Buckinghamshire, SL8 5YS
• Alliance Communication Solutions Ltd
  South House, South Street, DORKING, Surrey, RH4 2JZ
• Alpha Prepaid Ltd
  391 Richmond Road, TWICKENHAM, Middlesex, TW1 2EF
• Alpha Telecom
  391 Richmond Road, TWICKENHAM, Middlesex, TW1 2EF
• Andrews & Arnold Ltd
  Unit 3 Enterprise Court, Downmill Road, BRACKNELL, Berkshire, RG12 1QS
• Ant Communications
  4 Front House, Stonefield Way, RUISLIP, Middlesex, HA4 0JS
• Area Communications
  Reviens, The Rowans, SUNBURY ON THAMES, Middlesex, TW16 7QG
• Aspetel Services
  2 Wallingford Road, UXBRIDGE, Middlesex, UB8 2BB
• Austin Telecom
  10 Melton Place, EPSOM, Surrey, KT19 9EE
• Autoansa Ltd
  Swan House, 69-71 Windmill Road, SUNBURY ON THAMES, Middlesex, TW16 7DT
• Avaya UK
  Avaya House, Cathedral Hill, GUILDFORD, Surrey, GU2 7YL
• Azarn Communications Ltd
  144-146 Buckingham Palace Road, LONDON, Greater London, SW1W 9TR
• Azzurri Communications Ltd
  Halewood House, Tite Hill, EGHAM, Surrey, TW20 0LT
• B2bt For Business's In West London
  Studio 3.1, 114 Power Road, LONDON, Greater London, W4 5PY
• BT Conferencing
  Ambassador House, 75 St Michaels Street, LONDON, Greater London, W2 1QS
• BT Infonet
  Heathcoat House, 20 Savile Row, LONDON, Greater London, W1S 3PR
• BT Local Business
  Riverview, Walnut Tree Close, GUILDFORD, Surrey, GU1 4UX
• BTL Communication
  Manhattan House, 140 High Street, CROWTHORNE, Berkshire, RG45 7AY
• Barking Consulting Ltd
  401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• Bee Gees
  338 Edgware Road, LONDON, Greater London, W2 1EA
• Border Telecom
  Heather Drive, ASCOT, Berkshire, SL5 0HT
• Breakthrough Global Ltd
  Marcar House, Parkshot, RICHMOND, Surrey, TW9 2RG
• Burns Telecom
  43 Sandhurst Road, CROWTHORNE, Berkshire, RG45 7HY
• Business Connect Ltd
  8 Spice Court, Ivory Square, LONDON, Greater London, SW11 3UE
• Buttontel
  3 Park Street, WINDSOR, Berkshire, SL4 1LU
• C N S
  Bradley House, ST. Albans Lane, LONDON, Greater London, NW11 7QE
• C P S Telecom
  Worthington House, 449-451 High Road, LONDON, Greater London, NW10 2JJ
• Cable & Wireless Communications Ltd
  1 Brentside Exec Centre, Great West Road, BRENTFORD, Middlesex, TW8 9DS
• Cabletel (GB) Ltd
  Suite 112 Whittaker House, Whittaker Avenue, RICHMOND, Surrey, TW9 1EH
• Call Sciences
  126 Fairlie Road, SLOUGH, Berkshire, SL1 4PY
• Call World
  106 Golders Green Road, LONDON, Greater London, NW11 8HB
• Calling Places Ltd
  12 Ashbourne Road, LONDON, Greater London, W5 3ED
• Callmaster Ltd
  Wrecclesham Road, Wrecclesham, FARNHAM, Surrey, GU10 4PS
• Callworld UK
  88 Uxendon Hill, WEMBLEY, Middlesex, HA9 9SJ
• Cannock Investments
  5 Lower Belgrave Street, LONDON, Greater London, SW1W 0NR
• Cellcast UK Ltd
  150 Great Portland Street, LONDON, Greater London, W1W 6QD
• Cellnet
  260 Bath Road, SLOUGH, Berkshire, SL1 4DX
• Chitter Chatter Ltd
  358 Oxford Street, LONDON, Greater London, W1C 1JJ
• City Call Centre
  148 High Street, LONDON, Greater London, NW10 4SP
• Cma Telecommunication Services
  Ranmore House, The Crescent, LEATHERHEAD, Surrey, KT22 8DY
• Columbus Telecom Ltd
  12 York Gate, LONDON, Greater London, NW1 4QS
• Commlinks
  96 Harlington Road West, FELTHAM, Middlesex, TW14 0JJ
• Commonwealth Telecommunications Organisation
  Clareville House, 26-27 Oxendon Street, LONDON, Greater London, SW1Y 4EL
• Communications Network
  Green Street, SUNBURY ON THAMES, Middlesex, TW16 6QJ
• Compcom Ltd
  35 Thurloe Street, LONDON, Greater London, SW7 2LQ
• Comtel Telecommunications Ltd
  Park House, 158/160 Arthur Road, LONDON, Greater London, SW19 8AQ
• Connections Communications Specialists Ltd
  Crowthorne Enterprise Centre Crowthorne Business Estate, Old Wok, CROWTHORNE, Berkshire, RG45 6AW
• Converse Telecom
  Barley House, 57 Church Street, STAINES, Middlesex, TW18 4XS
• Corex Networks Ltd
  250 Gunnersbury Avenue, LONDON, Greater London, W4 5QB
• Cramer
  3 Sheldon Square, LONDON, Greater London, W2 6HY
• Cramer Systems
  8 The Square, Stockley Park, UXBRIDGE, Middlesex, UB11 1FW
• Cybit Positioning Solutions Ltd
  Compass House, Davis Road, CHESSINGTON, Surrey, KT9 1TP
• D P S S Cabling Services Ltd
  Unit 16 Chiltern Business Village, Arundel Road, UXBRIDGE, Middlesex, UB8 2SN
• DC Business Services Ltd
  Ebenezer Cottage, Reading Road North, FLEET, Hampshire, GU51 4AQ
• Daleton Communications Ltd
  Suite 401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• Data Broadcasting International Ltd
  Allen House, Station Road, EGHAM, Surrey, TW20 9NT
• Dial Abroad
  235 Baker Street, LONDON, Greater London, NW1 6XE
• Docomo Europe Ltd
  Landsdowne House, 57 Berkeley Square, LONDON, Greater London, W1J 6ER
• Door To Door Preference Service Ltd
  Dma House, 70 Margaret Street, LONDON, Greater London, W1W 8SS
• Doorstep Preference Service Ltd
  Dma House, 70 Margaret Street, LONDON, Greater London, W1W 8SS
• E-Learning Guru Publications Ltd
  401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• E.C Datacoms
  Linburn House, 342 Kilburn High Road, LONDON, Greater London, NW6 2QJ
• Earning Telephone Numbers
  401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• Eci Telecom UK Ltd
  12 York Gate, LONDON, Greater London, NW1 4QS
• Encoded Ltd
  31b Bell Street, REIGATE, Surrey, RH2 7AD
• Ett
  52 Berkeley Square, LONDON, Greater London, W1J 5BT
• Euro Control Ltd
  29a New Cavendish Street, LONDON, Greater London, W1G 9UE
• F D K Communication
  South House, South Street, DORKING, Surrey, RH4 2JZ
• Face Value Ltd
  Charles House, Toutley Road, WOKINGHAM, Berkshire, RG41 1QN
• Fax Preference Service
  Dma House, 70 Margaret Street, LONDON, Greater London, W1W 8SS
• Flextel Telecommunications
  24-28 ST. Leonards Road, WINDSOR, Berkshire, SL4 3BB
• Focas Telecommunication Services
  405 Kings Road, LONDON, Greater London, SW10 0BB
• Foneandsurf.Com
  343 Bath Road, HOUNSLOW, Middlesex, TW3 3DH
• Free 2 Call Ltd
  P O Box 3620, LONDON, Greater London, NW11 0AQ
• French & Grace
  57 Station Road, HAMPTON, Middlesex, TW12 2BT
• Fuszion
  891 Plymouth Road, SLOUGH, Berkshire, SL1 4LP
• Gara Technologies Ltd
  Coughlan House, 12 Walmgate Road, GREENFORD, Middlesex, UB6 7LH
• Giblin Telecom Ltd
  589 London Road, SLOUGH, Berkshire, SL3 8QG
• Global Choices Ltd
  Barkat House, 116-118 Finchley Road, LONDON, Greater London, NW3 5HT
• Global Networks International Ltd
  16 Commercial Way, Abbey Road, LONDON, Greater London, NW10 7XF
• Global Wealth Strategies Ltd
  32 ST. James's Street, LONDON, Greater London, SW1A 1HD
• Gold Telecom Ltd
  1 ST. Johns Mews, ST. Johns Road, Hampton Wick, KINGSTON UPON THAMES, Surrey, KT1 4AN
• Greenland Interactive Ltd
  Glen House, 200-208 Tottenham Court Road, LONDON, Greater London, W1T 7PL
• Harrow International Call Centre
  72 Station Road, HARROW, Middlesex, HA1 2SQ
• Hartwood Radio Systems Ltd
  271 Farnborough Road, FARNBOROUGH, Hampshire, GU14 7LY
• I C O Services Ltd
  2 Chalk Hill Road, Hammersmith, LONDON, Greater London, W6 8DW
• Idirect Technologies
  270 Bath Road, SLOUGH, Berkshire, SL1 4DX
• Inclarity Ltd
  8 Fulton Road, WEMBLEY, Middlesex, HA9 0NU
• Independent Telecommunications Management
  38 Halsey Street, LONDON, Greater London, SW3 2PT
• Infonet UK Ltd
  Heathcoat House, 20 Savile Row, LONDON, Greater London, W1S 3PR
• Infotec Installations Ltd
  2 Cock Lane, Fetcham, LEATHERHEAD, Surrey, KT22 9TT
• Intelsat
  Building 3 Chiswick Park, Chiswick High Road, LONDON, Greater London, W4 5YA
• Interactive Learning Systems For Sports (I.L.S.S.) Ltd
  401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• Intercai Mondiale Ltd
  High Street, MARLOW, Buckinghamshire, SL7 1AB
• International Call Centre
  150 Horn Lane, LONDON, Greater London, W3 6PG
• International Telesis Group
  23 Berkeley Square, LONDON, Greater London, W1J 6HE
• Internet Communications Ltd
  Suite 401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• Interplay Media Ltd
  4 The Quadrant Courtyard, Quadrant Way, WEYBRIDGE, Surrey, KT13 8DR
• Isis Telecommunication Management
  86 Warwick Road, LONDON, Greater London, W5 5PT
• Ison Services
  Douglas House, 16-18 Douglas Street, LONDON, Greater London, SW1P 4PB
• Iv Response
  Mortimer Street, LONDON, Greater London, W1W 8HS
• Jsi Telecom Ltd
  12 York Gate, LONDON, Greater London, NW1 4QS
• Juniper Networks Ltd
  Juniper House, Guildford Road, Fetcham, LEATHERHEAD, Surrey, KT22 9JH
• Just Ring Communications
  38 Moor Lane, CHESSINGTON, Surrey, KT9 1BW
• Korus Group Ltd
  Korus House, 6-8 Colne Road, TWICKENHAM, Middlesex, TW1 4JR
• Korus Systems
  Korus House, 6-8 Colne Road, TWICKENHAM, Middlesex, TW1 4JR
• Land 2 Mobile
  140 Buckingham Palace Road, LONDON, Greater London, SW1W 9SA
• Leading Edge Technology Ltd
  Woodthorpe Road, ASHFORD, Middlesex, TW15 2RW
• Leonard Computers & Communication Services Ltd
  1 Church Road, ISLEWORTH, Middlesex, TW7 4PL
• Lineplex Ltd
  PO Box 590, Peaslake, GUILDFORD, Surrey, GU5 9YL
• London Communication Centre
  128 Hanworth Road, HOUNSLOW, Middlesex, TW3 1UG
• Magic Cat Communications Ltd
  Suite 401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• Mailing Preference Service Ltd
  Dma House, 70 Margaret Street, LONDON, Greater London, W1W 8SS
• Mcleod Communications Ltd
  Suite 401 Langham House, 302-308 Regent Street, LONDON, Greater London, W1B 3HH
• Mears R J Telephone Extension Socket Services
  36 Connaught Close, YATELEY, Hampshire, GU46 6QQ
• Miro Telecommunications Ltd
  F A C S House, Holmesdale Road, North Holmwood, DORKING, Surrey, RH5 4HS
• NTL
  1 Lakeside Road, FARNBOROUGH, Hampshire, GU14 6XP
• Nestor Electronics Ltd
  11 ST. Georges Industrial Estate, Wilton Road, CAMBERLEY, Surrey, GU15 2QW
• Netsize UK Ltd
  The Triangle, Hammersmith Grove, LONDON, Greater London, W6 0LG
• New Zealand Wine Growers
  New Zealand House, 80 Haymarket, LONDON, Greater London, SW1Y 4TE
• Nix Technologies
  2 The Courtyard, Eastern Road, BRACKNELL, Berkshire, RG12 2XB
• Nortel Networks UK Pension Trust Ltd
  Maidenhead Office Park, Westacott Way, Littlewick Green, MAIDENHEAD, Berkshire, SL6 3QH
• O2 Store
  260 Bath Road, SLOUGH, Berkshire, SL1 4DX
• O2 UK Ltd
  260 Bath Road, SLOUGH, Berkshire, SL1 4DX
• O2 UK Ltd
  260 Bath Road, SLOUGH, Berkshire, SL1 4DX
• Old Talktalk UK Communication Services Ltd
  1 Portal Way, LONDON, Greater London, W3 6RS
• Omnitel
  The Courtyard, 51 ST. Marys Road, WEYBRIDGE, Surrey, KT13 9PX
• One World Telecom
  29a New Cavendish Street, LONDON, Greater London, W1G 9UE
• Opus Business Systems
  Unit 4 50 Windsor Avenue, LONDON, Greater London, SW19 2TJ
• Orange Centre Office
  The Point, 37 North West Road, London, , W2 1AG
• Orchid Communications Ltd
  108-109 Liscombe, BRACKNELL, Berkshire, RG12 7DE
• P.R. Communications Company S Ltd
  Gladstone House, 77-79 High Street, EGHAM, Surrey, TW20 9HY
• PCS
  100 Pall Mall, LONDON, Greater London, SW1Y 5HP
• PGR Bu