Downstream networks
AS21320 GEANT_IAS_VRF GEANT Vereniging
Unclassified RIPE Educational/Research
Transit
Downstream networks
Networks for which AS21320 was observed as the last hop before the origin, meaning it appears to provide them transit.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS1930 | Fundacao para a Ciencia e a Tecnologia, I.P. | Unclassified | IPv4 IPv6 | 3,755 |
| AS378 | Israel InterUniversity Computation Center | Unclassified | IPv4 IPv6 | 2,019 |
| AS5408 | National Infrastructures for Research and Technology S.A. | Education | IPv4 IPv6 | 1,356 |
| AS2614 | Agentia de Administrare a Retelei Nationale de Informatica pentru Educatie si Cercetare | Education | IPv4 IPv6 | 1,224 |
| AS2607 | Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET | Education | IPv4 IPv6 | 879 |
| AS6802 | Bulgarian Research and Education Network Association (BREN) | Education | IPv4 IPv6 | 852 |
| AS2200 | Renater | Education | IPv4 IPv6 | 818 |
| AS6879 | ENSTINET | Education | IPv4 | 789 |
| AS766 | Entidad Publica Empresarial Red.es | Unclassified | IPv4 IPv6 | 638 |
| AS2107 | ARNES | Unclassified | IPv4 IPv6 | 613 |
| AS12046 | University of Malta | Unclassified | IPv4 IPv6 | 433 |
| AS13092 | AMRES | Unclassified | IPv4 IPv6 | 318 |
| AS2847 | Kauno Technologijos Universitetas | Education | IPv4 IPv6 | 300 |
| AS1213 | ASIERA TECHNOLOGY SERVICES CLG | Unclassified | IPv4 IPv6 | 278 |
| AS47623 | Institute for Informatics and Automation Problems | Unclassified | IPv4 | 263 |
| AS2611 | BELNET | Education | IPv4 IPv6 | 255 |
| AS559 | SWITCH | Unclassified | IPv4 | 234 |
| AS2852 | CESNET z.s.p.o. | Education | IPv4 IPv6 | 211 |
| AS513 | European Organization for Nuclear Research | Unclassified | IPv4 IPv6 | 210 |
| AS3268 | of Cyprus | Education | IPv4 IPv6 | 206 |
| AS1955 | KIFU (Governmental Info Tech Development Agency) | Unclassified | IPv4 IPv6 | 143 |
| AS2108 | Croatian Academic and Research Network | Unclassified | IPv4 IPv6 | 140 |
| AS20965 | GEANT Vereniging | Unclassified | IPv4 IPv6 | 122 |
| AS5538 | Institute of Mathematics and Computer Science of University of Latvia | Education | IPv4 IPv6 | 119 |
| AS2602 | Fondation RESTENA | Education | IPv4 IPv6 | 108 |
| AS199354 | Arab States Research and Education Network (ASREN) Gemeinnutzige GmbH | Unclassified | IPv4 IPv6 | 90 |
| AS1853 | ACONET | Unclassified | IPv4 IPv6 | 86 |
| AS12687 | User Association of Ukrainian Research and Academic Network URAN | Unclassified | IPv4 IPv6 | 85 |
| AS137 | Consortium GARR | Unclassified | IPv4 IPv6 | 83 |
| AS40981 | University of Montenegro | Unclassified | IPv4 IPv6 | 82 |
| AS8501 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | Education | IPv4 IPv6 | 64 |
| AS3208 | Algerian Academic Research Network | Education | IPv4 IPv6 | 61 |
| AS8517 | National Academic Network and Information Center | Education | IPv4 IPv6 | 58 |
| AS44224 | Macedonian Academic Research Network Skopje | Unclassified | IPv4 | 57 |
| AS9199 | RENAM Public Association | Education | IPv4 IPv6 | 43 |
| AS136968 | SingAREN | Education | IPv4 | 36 |
| AS202012 | GEANT Vereniging | Unclassified | IPv6 | 34 |
| AS202993 | Institute of Information Technologies of National Academy of Science Azerbaijan | Unclassified | IPv4 | 32 |
| AS3221 | Haridus- ja Teadusministeerium | Education | IPv4 IPv6 | 9 |
| AS31898 | Oracle Corporation | Hosting | IPv4 | 1 |
Derived from routing tables collected at 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.