| AT | AS51265 | Mass Response / spusu |
| AT | AS199015 | Frequentis AG |
| AT | AS35609 | Gerhard Marek trading as Smart Force e.U. |
| AT | AS29287 | Wien Energie GmbH |
| AT | AS34785 | Stadtwerke Klagenfurt |
| AT | AS47132 | Innonet ICT-Services GmbH |
| AT | AS57763 | SelfNet Internet Ges.m.b.H. |
| AT | AS31382 | CANCOM Austria AG |
| AT | AS198650 | APPLIED CHEMICALS Handels-GmbH |
| AT | AS208245 | Bechtle Austria GmbH |
| AT | AS28839 | United Nations Office at Vienna |
| AT | AS8787 | Amaris Technologies GmbH |
| AT | AS8339 | Kabelplus GmbH |
| AT | AS16099 | Hauptverband der oesterreichischen Sozialversicherungstraeger |
| AT | AS211666 | ebswien klaeranlage & tierservice Ges.m.b.H |
| AT | AS44865 | derStandard.at |
| AT | AS28771 | Flughafen Wien Aktiengesellschaft |
| AT | AS51658 | Patrick Janesch trading as Lucesem |
| AT | AS200683 | Elektro Puehringer GmbH |
| DE | AS8590 | Bayerische Motoren Werke Aktiengesellschaft |
| AT | AS205243 | CloudNow GmbH |
| AT | AS28848 | United Nations Industrial Development Organization |
| AT | AS59779 | IXOLIT |
| AT | AS24992 | DIC Online Wolf Ltd & Co. KG |
| AT | AS42378 | Rundfunk und Telekom Regulierungs-GmbH |
| AT | AS215689 | GW St. Poelten Integrative Betriebe GmbH |
| AT | AS39508 | AXIANS ICT Austria GmbH |
| AT | AS216369 | jkdev |
| AT | AS42572 | abaton EDV-Dienstleistungs GmbH |
| AT | AS211763 | CPS - IT GmbH |
| AT | AS212379 | Crefo Technology GmbH |
| AT | AS211060 | Verkehrsverbund Ost-Region (VOR) Gesellschaft m.b.H. |
| AT | AS202616 | Wien Energie GmbH |
| AT | AS44133 | IPAX Internet Services |
| AT | AS21079 | Oesterreichische Kontrollbank Aktiengesellschaft |
| AT | AS6720 | Magistrat der Stadt Wien, Magistratsabteilung 01 |
| AT | AS48151 | Red Bull GmbH |
| AT | AS199216 | Compass-Verlag GmbH |
| AT | AS29330 | Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH |
| AT | AS51454 | CRIF GmbH |
| AT | AS8596 | hotze.com GmbH |
| AT | AS200273 | Lisa Kowalsky |
| AT | AS25522 | Travelport Austria GmbH |
| AT | AS51560 | Greschitz Management GmbH |
| AT | AS57057 | AVALON Computersystem Ges.m.b.H. |
| AT | AS6883 | Parlamentsdirektion |
| AT | AS207791 | NTB SOLUTIONS GmbH |
| AT | AS13042 | Oesterreichische Nationalbank |
| AT | AS208323 | Foundation for Applied Privacy |
| CH | AS56554 | IETF-MEETING |
