| AS21500 | Scientific Production Enterprise "Technaukservice" Ltd (TNS) |  | |
| AS21501 | Mainlab GmbH (35329) |  | |
| AS21502 | Numericable (Numericable) | ||
| AS21503 | ARETE-AS Availo Networks AB |  | |
| AS21508 | Comcast - Richmond (Comcast - Richmond) |  | |
| AS21513 | Epik Networks (Net-coneX) |  | |
| AS21519 | Sinclair Broadcast (Sinclair Broadcast) | ||
| AS21523 | leasenet (LeaseNet Services, LLC) |  | |
| AS21525 | Seattle Public Library (Seattle Public Library) | ||
| AS21527 | DayStarr Communications (DayStarr Communications) | | |
| AS21528 | AlasConnect (AlasConnect) | | |
| AS21538 | IGWAN.NET (IGWAN.NET) |  | |
| AS21547 | Oxford Networks AS21547 (Oxford Networks AS21547) | | |
| AS21548 | Aptum Fibre (Montreal) (Aptum Fibre (Montreal), Cogeco Peer1 Montreal) | | |
| AS21557 | Cybernet Communications (Cybernet Communications) | ||
| AS21558 | S.C. Johnson & Son (S.C. Johnson & Son) | ||
| AS21559 | OSNET Wireless (OSNET) |  | |
| AS21570 | GTT Communications (AS21570) (Accelerated Connections Inc, OneConnect Services) | | |
| AS21574 | CENTURY TELECOM (CENTURY) |  | |
| AS21575 | Entel Peru S.A. (Entel Peru) | ||
| AS21581 | M5 Computer Security / M5Hosting (M5 Cloud) | ||
| AS21595 | BAXTER | ||
| AS21602 | GIGLINX (GIGLINX) | ||
| AS21609 | SENTINEL-BENEFITS-GROUP | ||
| AS21623 | I2B Networks as21623 (Camzone Networks) | ||
| AS21628 | Towerstream Corp (Towerstream Corp) | ||
| AS21632 | Grizzly Broadband LLC (Grizzly Broadband LLC) | | |
| AS21640 | Divo Networks (Divo Networks) | ||
| AS21656 | NEX-CORP-US | ||
| AS21659 | ALT TELECOM (ALT TELECOM) | | |
| AS21660 | AS21660 Baxalta Incorporated | | |
| AS21693 | Xcel Energy (Xcel Energy) | | |
| AS21700 | Neptune Networks (Neptune Networks) |  | |
| AS21709 | Implex.net (Implex.net, Inc.) | ||
| AS21719 | CHL (CHL) | | |
| AS21723 | GoCo (GoCo) | | |
| AS21724 | Radiant Communications Toronto (Radiant Communications Corp.) | | |
| AS21734 | Trading Technologies Intl (Trading Technologies Intl) |  | |
| AS21737 | SpringNet (SpringNet) | ||
| AS21739 | MAJUBA TECHNOLOGIES (Majuba) |  | |
| AS21740 | Enom (Enom) | ||
| AS21743 | Atlas Networks (Atlas Networks) |  | |
| AS21744 | WestStar TV Ltd. (WestStar TV Ltd.) | ||
| AS21750 | Counterpoint Networking (CPOINT) | | |
| AS21765 | VOISSNET (RedVOISS) | ||
| AS21766 | BEN-LOMAND-TEL (Ben Lomand Connect) | ||
| AS21769 | Colocation America AS21769 (Colocation America AS21769) | | |
| AS21774 | The Exchange Global Server Center (XGSC) | ||
| AS21777 | Massive Networks (Last Mile Fiber) | | |
| AS21782 | Plateau Telecommunications (Plateau Telecommunications) |