| Country | Name | AS Number |
|---|---|---|
| Germany | 1&1 | 8560 |
| Australia | Aarnet | 7575 |
| UK | Aexiomus | 6770 |
| South Africa | Africa Online | 18922 |
| International | Akamai | 20940 |
| UK | Akhter | 15988 |
| Spain | Altecom | 16030 |
| Germany | Arcor | 3209 |
| Spain | Arsys | 20718 |
| UK | Associated Networks | 25061 |
| UK | Atlas | 8607 |
| UK | Avensys | 8553 |
| UK | BBC Internet Services, UK | 2818 |
| UK | Be Unlimited | 35228 |
| Belgium | Belgacom ICS | 6774 |
| Unknown | bhutan | 17660 |
| Netherlands | BIT BV | 12859 |
| Unknown | Biznet | 17451 |
| UK | Bogons | 3213 |
| UK | Brightview | 25041 |
| UK | Burstfire | 9153 |
| UK | Business Serve plc | 5587 |
| UK | C2 Internet | 13005 |
| UK | Cable & Wireless Access | 25310 |
| UK | Catalyst2 Services | 29636 |
| Taiwan | chungwha | 9505 |
| UK | Claranet | 8426 |
| Russia | Comstar | 8359 |
| UK | coreix | 31708 |
| UK | Demon Internet | 2529 |
| UK | Domicilium | 15766 |
| UK | Easynet | 4589 |
| UK | Eaton Kaye | 34746 |
| UK | Eclipse | 12513 |
| UK | Econet Carrier Services | 30844 |
| Ireland | Eircom | 5466 |
| UK | Entanet | 8468 |
| Unknown | eptluxembourg | 6661 |
| Ireland | Esat | 2110 |
| UK | Etisalat | 8966 |
| Finland | EUnet Finland | 6667 |
| Netherlands | Euroaccess | 34305 |
| UK | Euroconnex Networks | 29550 |
| UK | Exa Networks | 30740 |
| UK | Exalia | 31625 |
| International | Flag | 15412 |
| Unknown | Fredonia | 41095 |
| France | Free SAS | 12322 |
| UK | Fubra | 35456 |
| UK | Fujitsu | 6779 |
| UK | Fused Networks | 6320 |
| UK | Game Digital | 21099 |
| UK | GCap Media | 39202 |
| UK | Globix | 15830 |
| UK | Griffin | 20500 |
| UK | GTS | 5588 |
| UK | Gyron | 29017 |
| South Korea | Hanaro | 9318 |
| Germany | HanseNet | 13184 |
| USA | Highwinds | 12989 |
| UK | Hotchilli | 8419 |
| UK | Hotlinks | 20976 |
| UK | hSo | 20679 |
| USA | Hurricane | 6939 |
| Iceland | Iceland Telecom | 6677 |
| UK | Inclarity | 15773 |
| Switzerland | Init7 | 13030 |
| UK | Internet Connections | 34270 |
| South Africa | Internet Solutions | 3741 |
| UK | Inweb | 8851 |
| UK | IT Inside Out | 35399 |
| UK | IXEurope | 21371 |
| Unknown | jasmin | 34655 |
| UK | KeConnect | 16034 |
| UK | Kingston Communications | 12390 |
| USA | Limelight | 22822 |
| UK | LINX Route Servers | 8714 |
| UK | London Internet Exchange Ltd. | 5459 |
| UK | Lumison | 12703 |
| Ireland | Magnet | 34245 |
| UK | Merula | 16353 |
| USA | Microsoft | 8068 |
| UK | Mistral | 8897 |
| Unknown | Mohawk | 14537 |
| South Africa | MTN Network Solutions | 16637 |
| UK | Multiplay | 35028 |
| Finland | Nebula | 13276 |
| USA | Net Access | 8001 |
| UK | NetBenefit | 8912 |
| UK | Netcetera | 24851 |
| Germany | NetCologne | 8422 |
| UK | NetConnex | 21396 |
| UK | Netservices | 15444 |
| France | Neuf Telecom | 15557 |
| UK | NewNet | 9191 |
| UK | Nominet | 8683 |
| UK | NTL Group Limited | 5089 |
| UK | Onyx | 6067 |
| UK | Opal | 13285 |
| UK | Open Hosting Ltd | 33970 |
| UK | Orange Business Services | 4004 |
| Greece | OTEGlobe | 12713 |
| UK | Othello | 29527 |
| France | OVH | 16276 |
| USA | PCCW Global | 3491 |
| USA | Peer1 | 13768 |
| UK | PlusNet | 6871 |
| UK | POBOX | 29006 |
| Sweden | Port80 AB | 16150 |
| USA | Primus | 5427 |
| UK | Prodigy | 29055 |
| USA | Prolexic | 32787 |
| Portugal | PT Comunicacoes | 8657 |
| Germany | QSC | 20676 |
| UK | Qube Networks | 29668 |
| Unknown | Rackage | 8577 |
| USA | Rackspace | 15395 |
| UK | RapidSwitch | 29131 |
| UK | REDNET | 8586 |
| Russia | RETN | 25462 |
| Romania | Romania Data Systems | 8708 |
| Germany | ScanPlus | 12399 |
| UK | SCEE | 25562 |
| UK | Skymarket | 20923 |
| Ireland | Smart Telecom | 31458 |
| Switzerland | SolNet | 9044 |
| UK | Spitfire | 16082 |
| Switzerland | Sunrise | 6730 |
| Switzerland | Swisscom | 3303 |
| Germany | Telefonica DE | 6805 |
| Austria | Telekom Austria | 8447 |
| Malaysia | Telekom Malaysia | 4788 |
| Norway | Telenor | 2119 |
| UK | Teletext | 12932 |
| UK | Telewest Broadband | 5462 |
| UK | Telstra Europe | 1290 |
| UK | The Cloud | 41012 |
| Russia | TransTelecom | 20485 |
| UK | UK Broadband | 29009 |
| UK | uk2.net | 13213 |
| UK | UKERNA | 786 |
| UK | Ukgrid | 39757 |
| UK | UKS | 20547 |
| Unknown | Verisign | 36625 |
| UK | Virgin Radio | 34763 |
| UK | Virtual | 16339 |
| UK | WFCS | 35751 |
| USA | WV Fiber | 19151 |
| UK | Yahoo! | 10310 |
| UK | Your Communications Ltd | 8546 |
| UK | Zen | 13037 |
| UK | Zoo | 5557 |