| IT | AS209631 | TOP-IX4Schools |
| GB | AS42081 | European Centre for Medium-Range Weather Forecasts (ECMWF) |
| IT | AS200375 | Istituto Nazionale di Geofisica e Vulcanologia |
| IR | AS60394 | Saba Hour Yeganeh Co. ( Private Joint Stock) |
| BE | AS42165 | European Commission - Directorate General - Joint Research Centre |
| IT | AS5502 | NATO SACLANT Undersea Research Centre |
| IT | AS205195 | EFSA - European Food Safety Authority |
| IT | AS199342 | Universita Cattolica del Sacro Cuore |
| IT | AS3275 | CINECA CONSORZIO INTERUNIVERSITARIO |
| IT | AS29609 | FONDAZIONE BRUNO KESSLER |
| IT | AS2598 | IIT-CNR Isolario Project |
| IT | AS50112 | Fondazione Ugo Bordoni |
| IT | AS20745 | CNIT Italian National Consortium for Telecommunications |
| IT | AS197440 | Anycast ccTLD .it |
| IT | AS16004 | MIX-IT Services |
| NL | AS21320 | GEANT IAS |
| IT | AS12835 | Trentino Digitale SPA |
| IT | AS3302 | Retelit S.p.A. |
| VA | AS8978 | Holy See |
| IT | AS31638 | Lepida |
| US | AS6939 | Hurricane Electric |
| BR | AS14840 | BR.Digital |
| FR | AS43531 | IX Reach |
| TN | AS37492 | Orange Tunisie |
| US | AS1239 | Sprint - AS1239 |
| IT | AS6762 | Telecom Italia Sparkle |
| IT | AS30722 | Vodafone Italy |
| IT | AS8612 | Tiscali |
| IT | AS213462 | FibreConnect-AS |
| SA | AS39386 | Saudi Telecom Company (STC IGW) |
| SG | AS24482 | SG.GS |
| IT | AS6882 | Regione Toscana |
| FR | AS16276 | OVHcloud |
| BG | AS34224 | Neterra |
| NL | AS20965 | GEANT R&E |
| GH | AS327814 | Ecoband |
| US | AS47065 | Columbia/UFMG PEERING Research Testbed |
| CH | AS13030 | Init7 |
| IT | AS5394 | Unidata S.p.A. |
| DE | AS5405 | Inter.link |
| GB | AS4455 | BSO |
| GB | AS15412 | FLAG Telecom |
| CH | AS3303 | Swisscom |
| IT | AS12874 | Fastweb |
| IT | AS49367 | Seflow S.N.C. Di Marco Brame & C. |
| IT | AS2597 | REGISTRO .IT |
| US | AS6461 | Zayo |
| US | AS174 | Cogent Communications, Inc. |
| DE | AS33891 | Core-Backbone |
| US | AS33131 | INTRALINKS INC. |
