AS2603 — NORDUNET

Network type: education

AS2603 announces 9 IPv4 prefixes covering 9,728 addresses and 13 IPv6 prefixes.

About this network

The Nordic regional research and education backbone, interconnecting the national NRENs of Denmark, Finland, Iceland, Norway, and Sweden and linking them to the global research-network community.

What it's used for

• Carrying traffic between the Nordic national research networks and onward to GÉANT, Internet2, and other international R&E backbones, serving universities and research institutions across the region.

Notable

• Addresses here are institutional research-and-education backbone infrastructure, not commercial hosting — classified education even though it operates like a large carrier. The wide prefix footprint reflects its role aggregating five national networks.

Interesting

• NORDUnet is jointly owned by the five Nordic NRENs and is one of the oldest international research-network cooperations, with roots in the 1980s.

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

Announced prefixes

• 109.105.96.0/20
• 109.105.112.0/21
• 109.105.120.0/22
• 185.174.116.0/22
• 192.36.171.0/24
• 193.10.252.0/24
• 193.10.254.0/23
• 193.11.3.0/24
• 194.68.13.0/24
• 2001:948::/42
• 2001:948:80::/41
• 2001:948:100::/40
• 2001:948:200::/39
• 2001:948:400::/38
• 2001:948:800::/37
• 2001:948:1000::/36
• 2001:948:2000::/35
• 2001:948:4000::/34
• 2001:948:8000::/33
• 2001:949::/32
• 2001:94a::/31
• 2001:94c::/30

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS11537 Internet2
• AS9002 RETN Limited
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS50304 Blix Solutions AS
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS1836 green.ch AG
• AS1273 IDDQD-AS
• AS48362 Stadtwerke Feldkirch
• AS3491 PCCW Global (HK) Ltd.
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS24482 SG.GS
• AS6830 Liberty Global Europe Holding B.V.
• AS34019 Hivane Association
• AS33891 Core-Backbone GmbH
• AS37100 SEACOM Limited
• AS293 ESnet
• AS3741 Dimension Data
• AS2497 Internet Initiative Japan Inc.
• AS6696 VERIXI SA
• AS42708 Glesys AB
• AS49559 A-Systems Sp. z o.o.
• AS48185 team.blue NV

Downstream networks

• AS1653 Vetenskapsradet / SUNET
• AS1741 Tieteen tietotekniikan keskus Oy
• AS224 Sikt - Kunnskapssektorens Tjenesteleverandor
• AS1835 IDDQD-AS
• AS8674 Netnod AB
• AS15474 Rannsokna- og haskolanet Islands hf.
• AS8501 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
• AS2847 Kauno Technologijos Universitetas
• AS39590 NORDUnet
• AS3221 Haridus- ja Teadusministeerium
• AS198093 Foreningen for digitala fri- och rattigheter
• AS2832 Vetenskapsradet / SUNET
• AS21320 GEANT Vereniging

Adjacent networks

• AS21320 GEANT Vereniging
• AS1653 Vetenskapsradet / SUNET
• AS34549 meerfarbig GmbH & Co. KG
• AS1299 Arelion Sweden AB
• AS1741 Tieteen tietotekniikan keskus Oy
• AS8501 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
• AS3741 Dimension Data
• AS6939 Hurricane Electric LLC
• AS224 Sikt - Kunnskapssektorens Tjenesteleverandor
• AS50304 Blix Solutions AS
• AS20514 Axians AB
• AS37100 SEACOM Limited
• AS49788 Nexthop AS
• AS42708 Glesys AB
• AS48362 Stadtwerke Feldkirch
• AS6696 VERIXI SA
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS56655 Gigahost AS
• AS24482 SG.GS
• AS11537 Internet2
• AS1835 IDDQD-AS
• AS8674 Netnod AB
• AS34019 Hivane Association
• AS1836 green.ch AG
• AS2497 Internet Initiative Japan Inc.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Neutral Internet Exchange — Amsterdam, Netherlands
• Equinix Internet Exchange Ashburn — Ashburn, United States
• London Network Access Point — London, United Kingdom
• Hong Kong Internet Exchange — Hong Kong, China
• JPIX Tokyo — Tokyo, Japan
• Equinix Internet Exchange Chicago — Chicago, United States
• Singapore Internet Exchange — Singapore, Singapore
• New York International Internet Exchange — New York, United States
• Internet Neutral Exchange Association CLG - LAN1 — Dublin, Ireland
• Megaport Frankfurt IX — Frankfurt, Germany
• Sweden Open Network Internet eXchange Stockholm — Stockholm, Sweden
• STHIX - Stockholm — Stockholm, Sweden
• Stockholm Internet Exchange — Stockholm, Sweden
• Norwegian Internet Exchange Oslo 1 — Oslo, Norway
• Megaport Hamburg IX — Hamburg, Germany
• CERN IXP / Equinix Internet Exchange Geneva — Geneva, Switzerland
• Asteroid Amsterdam IX — Amsterdam, Netherlands
• Tampere Region Exchange — Tampere, Finland
• Reykjavik Internet Exchange — Reykjavik, Iceland
• STHIX - Copenhagen — Copenhagen, Denmark
• Netnod Sundsvall- Gävle — Sundsvall, Sweden