| US | AS14931 | The St. Paul Travelers Companies, Inc. |
| GB | AS39461 | EDF Energy Nuclear Generation Group Ltd |
| GB | AS34344 | Port Of Tilbury London Ltd |
| GB | AS57002 | William Hill Organization Ltd |
| GB | AS206576 | Wavenet Limited - AS206576 |
| GB | AS47534 | VOCALINK LTD |
| GB | AS60819 | Safenames Ltd. |
| GB | AS212880 | Krypton IT |
| GB | AS208118 | NI-Technology-Ltd |
| FR | AS211124 | CGI-UK-AS |
| GB | AS206467 | Protech Communications Ltd |
| GB | AS206773 | MSX International Ltd |
| GB | AS204322 | New York Times Limited |
| US | AS397010 | Dice Lion Technology |
| NL | AS209258 | TSYS Europe (Netherlands) B.V. |
| NL | AS60142 | NXP Semiconductors Netherlands B.V. |
| GB | AS205900 | APC Solutions UK Ltd |
| GB | AS213885 | Wilxite Ltd |
| GB | AS51953 | Sagentia Ltd |
| GB | AS196778 | TFL |
| GB | AS25546 | Brookland Computer Services Limited |
| GB | AS15914 | British Airways plc |
| GB | AS8296 | HBVB Private Unlimited |
| GB | AS205693 | Driver & Vehicle Licensing Agency |
| FR | AS50497 | SymphonyEYC France SAS |
| GB | AS209761 | NECS |
| GB | AS207900 | Northrop Grumman UK Limited |
| GB | AS208895 | Intelligence Hosting Services Limited |
| GB | AS204486 | Cheshire East Council |
| GB | AS60382 | Cranleigh School |
| IT | AS202679 | Deltatre Limited |
| GB | AS15770 | Durham County Council |
| GB | AS207173 | Northrop Grumman UK Limited |
| GB | AS207916 | Velocity1 Limited |
| GB | AS42359 | The Football Association Ltd. |
| GB | AS207245 | DSTI Holdings Limited |
| GB | AS39103 | Moat Homes |
| GB | AS44403 | Bristol City Council |
| GB | AS44008 | Royal Borough of Kensington and Chelsea |
| GB | AS201358 | FNZ (UK) Ltd |
| GB | AS197104 | Gentoo Group Limited |
| US | AS22787 | ARRIS Enterprises LLC |
| GB | AS203185 | PEBBLETREE LTD |
| EU | AS1290 | Telstra International (PSINet UK) |
| GB | AS21422 | Connect internet Solutions Limited |
| GB | AS50078 | X-ON |
| GB | AS48632 | BTS HOLDINGS PLC |
| RU | AS203749 | O2 Cloud, LLC |
| GB | AS204550 | Continental Limited |
| GB | AS203652 | IBM United Kingdom Limited |
