| US | AS203483 | Garmin International, Inc. |
| GB | AS209997 | SECURITAS TECHNOLOGY LIMITED |
| GB | AS202783 | NHS National Services Scotland |
| GB | AS51766 | Merseyside Fire and Rescue Service |
| GB | AS207900 | Northrop Grumman UK Limited |
| FR | AS50497 | SymphonyEYC France SAS |
| GB | AS39382 | Optinium Ltd |
| GB | AS205900 | APC Solutions UK Ltd |
| GB | AS210988 | London Borough Of Hammersmith & Fulham |
| GB | AS205693 | Driver & Vehicle Licensing Agency |
| GB | AS42880 | EntServ UK Limited |
| GB | AS47871 | Newsquest Media Group Ltd |
| GB | AS204322 | New York Times Limited |
| GB | AS204550 | Continental Limited |
| GB | AS197104 | Gentoo Group Limited |
| US | AS22001 | Life Technologies Corp. |
| EU | AS1290 | Telstra International (PSINet UK) |
| GB | AS196778 | TFL |
| GB | AS28705 | Cybase Limited |
| GB | AS60382 | Cranleigh School |
| GB | AS8296 | HBVB Private Unlimited |
| GB | AS210511 | Direct Market Solutions Limited |
| DE | AS211820 | Evotec SE |
| GB | AS209761 | NECS |
| CA | AS397681 | CGI Inc. |
| GB | AS205654 | Labtech Systems Ltd |
| GB | AS208895 | Intelligence Hosting Services Limited |
| GB | AS50985 | Electronic Arts Limited |
| GB | AS42359 | The Football Association Ltd. |
| GB | AS28939 | ARM |
| NL | AS60142 | NXP Semiconductors Netherlands B.V. |
| GB | AS15770 | Durham County Council |
| GB | AS208118 | NI-Technology-Ltd |
| GB | AS15914 | British Airways plc |
| CA | AS49707 | TESSAWORKS |
| GB | AS39400 | London Borough of Hackney |
| US | AS6254 | EG&G, Inc. |
| GB | AS213000 | Alliance Medical Limited |
| GB | AS62364 | Plymouth City Council |
| GB | AS51953 | Sagentia Ltd |
| GB | AS41548 | Medway Council |
| US | AS397010 | Dice Lion Technology |
| GB | AS39730 | Eircom (UK) Ltd |
| GB | AS204777 | telent Technology Services Ltd |
| GB | AS41570 | BFBS |
| FR | AS211124 | CGI-UK-AS |
| GB | AS203185 | PEBBLETREE LTD |
| GB | AS198142 | Warrington Borough Council |
| GB | AS197107 | SERVICE EXPRESS EUROPE LIMITED |
| GB | AS51905 | Compuweb Communications Services Limited |
