AS2907 — SINET-AS Research Organization of Information and Systems, National Institute of Informatics

AS2907 announces 478 IPv4 prefixes covering 8,769,600 addresses and 2 IPv6 prefixes.

About this network

SINET (SINET-AS) — Japan's Science Information Network, the national research and education backbone operated by the National Institute of Informatics (NII).

What it's used for

• Connecting Japan's universities and research institutions to each other and internationally at high bandwidth.

Notable

• An IP here is an academic/research network address, classified education rather than commercial hosting.
• SINET links hundreds of Japanese universities and labs; small Japanese academic ASNs commonly peer into it.

Interesting

• SINET has long doubled as a testbed for advanced networking, carrying some of Japan's earliest high-speed research links.

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

Announced prefixes

• 103.164.74.0/23
• 103.164.166.0/23
• 103.164.168.0/23
• 103.180.128.0/23
• 130.34.0.0/16
• 130.153.0.0/16
• 131.206.0.0/16
• 133.7.0.0/16
• 133.8.0.0/16
• 133.10.0.0/16
• 133.12.0.0/16
• 133.14.0.0/15
• 133.16.0.0/15
• 133.20.0.0/15
• 133.23.0.0/16
• 133.29.0.0/16
• 133.30.0.0/16
• 133.32.100.0/22
• 133.34.0.0/15
• 133.37.0.0/16
• 133.38.0.0/15
• 133.44.0.0/15
• 133.46.0.0/16
• 133.48.0.0/15
• 133.52.0.0/16
• 133.54.0.0/18
• 133.54.64.0/21
• 133.54.76.0/22
• 133.54.80.0/20
• 133.54.96.0/19
• 133.54.128.0/17
• 133.55.0.0/16
• 133.57.0.0/16
• 133.58.0.0/16
• 133.60.0.0/16
• 133.62.0.0/15
• 133.65.0.0/16
• 133.68.0.0/16
• 133.72.0.0/15
• 133.74.192.0/18
• 133.77.0.0/16
• 133.78.0.0/16
• 133.81.0.0/16
• 133.82.0.0/15
• 133.84.0.0/15
• 133.86.0.0/16
• 133.88.224.0/23
• 133.88.226.0/24
• 133.89.0.0/16
• 133.94.0.0/15
• 133.96.0.0/16
• 133.98.0.0/15
• 133.102.0.0/15
• 133.104.0.0/16
• 133.106.0.0/21
• 133.187.0.0/16
• 133.220.0.0/16
• 134.160.186.0/23
• 134.160.188.0/23
• 136.187.0.0/16
• 144.213.0.0/16
• 147.157.0.0/16
• 150.7.0.0/16
• 150.9.254.0/23
• 150.12.0.0/16
• 150.15.0.0/16
• 150.22.0.0/22
• 150.42.0.0/15
• 150.46.0.0/16
• 150.54.0.0/16
• 150.59.0.0/16
• 150.69.0.0/16
• 150.83.0.0/16
• 150.84.0.0/16
• 150.86.0.0/16
• 150.89.0.0/16
• 150.97.0.0/16
• 150.99.0.0/16
• 150.100.0.0/16
• 157.1.0.0/16
• 157.6.0.0/16
• 157.7.0.0/19
• 157.13.0.0/16
• 157.16.0.0/16
• 157.17.0.0/19
• 157.19.0.0/16
• 157.63.0.0/16
• 157.76.0.0/16
• 157.80.0.0/16
• 157.102.0.0/16
• 157.105.0.0/16
• 157.111.0.0/16
• 157.114.0.0/16
• 158.203.0.0/16
• 158.208.0.0/16
• 158.210.0.0/16
• 158.215.0.0/16
• 160.11.0.0/16
• 160.12.0.0/16
• 160.15.0.0/16

and 380 more.

Upstream networks

• AS2497 Internet Initiative Japan Inc.
• AS6939 Hurricane Electric LLC
• AS7660 Asia Pacific Advanced Network - Japan
• AS7575 Australian Academic and Research Network (AARNet)
• AS11537 Internet2
• AS1103 SURF B.V.
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS38001 NewMedia Express Pte Ltd
• AS2153 CENIC
• AS20485 Joint Stock Company TransTeleCom
• AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
• AS293 ESnet
• AS24287 National Institute of Informatics

Downstream networks

• AS58647 Kagawa University
• AS23793 National Institute of Advanced Industrial Science and Technology
• AS2506 NTT business Solutions corporation
• AS63770 Industrial Cyber Security Center of Excellence
• AS59103 SoftEther Corporation
• AS18124 Okayama University of Science
• AS3488 Japan Aerospace Exploration Agency
• AS18148 Fukuoka University
• AS131159 Yamagata University
• AS58652 Kochi University
• AS151388 SoftEther Corporation (SE-JIKKEN-AS)
• AS37918 NTT, Inc.
• AS45688 The University of Tokyo Interfaculty Initiative in Information Studies
• AS63783 Chiba University of Commerce
• AS2501 The University of Tokyo
• AS55912 University of Kochi
• AS131981 Takushoku University
• AS23781 Toyama University
• AS2504 Kyoto University
• AS2505 High Energy Accelerator Research Organization, KEK
• AS2523 Internet Technology Research Consortium
• AS18087 Toyo University
• AS55379 Hosei University
• AS55390 Tokyo University of Science
• AS63798 Industrial Cyber Security Center of Excellence

Adjacent networks

• AS2497 Internet Initiative Japan Inc.
• AS58647 Kagawa University
• AS6939 Hurricane Electric LLC
• AS7575 Australian Academic and Research Network (AARNet)
• AS7660 Asia Pacific Advanced Network - Japan
• AS1103 SURF B.V.
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS2153 CENIC
• AS11537 Internet2
• AS38001 NewMedia Express Pte Ltd
• AS24287 National Institute of Informatics
• AS293 ESnet
• AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
• AS23793 National Institute of Advanced Industrial Science and Technology
• AS20485 Joint Stock Company TransTeleCom
• AS2506 NTT business Solutions corporation
• AS63798 Industrial Cyber Security Center of Excellence
• AS59103 SoftEther Corporation
• AS63770 Industrial Cyber Security Center of Excellence
• AS18124 Okayama University of Science
• AS3488 Japan Aerospace Exploration Agency
• AS18148 Fukuoka University
• AS131159 Yamagata University
• AS58652 Kochi University

Internet exchanges

• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• JPIX Tokyo — Tokyo, Japan
• BroadBand Internet eXchange Osaka — Osaka, Japan
• Equinix Internet Exchange Tokyo — Tokyo, Japan
• JPIX Osaka — Osaka, Japan