AS21320 — GEANT_IAS_VRF

AS21320 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

GEANTIASVRF is operated by GEANT Vereniging.

What it's used for

• The address space carries research and education traffic, evidenced by the reverse DNS entry lt-20965-21320.rt1.kie.ua.geant.net and the netname GEANTIASVRF.
• The AS announces 1024 IPv4 addresses across 1 prefix while maintaining 154 observed neighbours, a ratio that indicates a transit or interconnection role rather than a large access network.

Notable

• Registrants for the announced prefix include GEANT Operations, GEANT Vereniging, and GEANT CERT (formerly DANCERT), which align with the registry holder.
• The address inventory consists of a single /22 block (83.97.88.0/22) located in the Netherlands, with no IPv6 prefixes currently announced.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 83.97.88.0/22

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS2603 NORDUnet
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS9002 RETN Limited
• AS3303 Swisscom (Schweiz) AG
• AS48185 team.blue NV
• AS3216 PJSC "Vimpelcom"

Downstream networks

• AS1930 Fundacao para a Ciencia e a Tecnologia, I.P.
• AS378 Israel InterUniversity Computation Center
• AS5408 National Infrastructures for Research and Technology S.A.
• AS2614 Agentia de Administrare a Retelei Nationale de Informatica pentru Educatie si Cercetare
• AS6802 Bulgarian Research and Education Network Association (BREN)
• AS6879 ENSTINET
• AS2200 Renater
• AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET
• AS2107 ARNES
• AS766 Entidad Publica Empresarial Red.es
• AS12046 University of Malta
• AS559 SWITCH
• AS13092 AMRES
• AS2847 Kauno Technologijos Universitetas
• AS1213 ASIERA TECHNOLOGY SERVICES CLG
• AS47623 Institute for Informatics and Automation Problems of National Academy of Sciences of the Republic of Armenia
• AS2611 BELNET
• AS2852 CESNET z.s.p.o.
• AS513 European Organization for Nuclear Research
• AS3268 of Cyprus
• AS1955 KIFU (Governmental Info Tech Development Agency)
• AS2108 Croatian Academic and Research Network
• AS20965 GEANT Vereniging
• AS5538 Institute of Mathematics and Computer Science of University of Latvia
• AS2602 Fondation RESTENA

Adjacent networks

• AS2603 NORDUnet
• AS5408 National Infrastructures for Research and Technology S.A.
• AS1930 Fundacao para a Ciencia e a Tecnologia, I.P.
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS9002 RETN Limited
• AS6939 Hurricane Electric LLC
• AS766 Entidad Publica Empresarial Red.es
• AS2200 Renater
• AS378 Israel InterUniversity Computation Center
• AS2614 Agentia de Administrare a Retelei Nationale de Informatica pentru Educatie si Cercetare
• AS48185 team.blue NV
• AS6802 Bulgarian Research and Education Network Association (BREN)
• AS3216 PJSC "Vimpelcom"
• AS2107 ARNES
• AS6879 ENSTINET
• AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET
• AS8517 National Academic Network and Information Center
• AS1853 ACONET
• AS2852 CESNET z.s.p.o.
• AS13092 AMRES
• AS1955 KIFU (Governmental Info Tech Development Agency)
• AS8501 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
• AS12046 University of Malta
• AS559 SWITCH

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Milan Internet Exchange — Milan, Italy
• DE-CIX Madrid — Madrid, Spain
• NIX.CZ - Neutral Internet eXchange for the Czech Republic — Prague, Czech Republic
• Vienna Internet Exchange — Vienna, Austria
• Bulgarian Internet eXchange — Sofia, Bulgaria
• Budapest Internet Exchange — Budapest, Hungary
• Internet Neutral Exchange Association CLG - LAN1 — Dublin, Ireland
• DE-CIX Marseille — Marseille, France
• Luxembourg Internet Exchange — Luxembourg, Luxembourg
• Belgian National Internet Exchange — Brussels, Belgium
• Greek Internet Exchange - Athens — Athens, Greece
• Gigabit Portuguese Internet Exchange Point — Lisbon, Portugal
• CERN IXP / Equinix Internet Exchange Geneva — Geneva, Switzerland
• Slovenian Internet Exchange — Ljubljana, Slovenia