AS7500 — M-ROOT-DNS WIDE Project

Network type: hosting

AS7500 announces 3 IPv4 prefixes covering 1,024 addresses and 1 IPv6 prefixes.

About this network

M-ROOT-DNS, the AS of the WIDE Project, the Japanese research consortium that operates m.root-servers.net, one of the thirteen DNS root servers.

What it's used for

• Announcing the address space that carries the M root name server, served from anycast nodes around the world.
• WIDE Project research and operational infrastructure in Japan.

Notable

• Only about 1,024 IPv4 addresses, but 202.12.27.33 is one of the thirteen addresses every DNS resolver on the internet may query when it starts a lookup from the root. rDNS confirms it: the host resolves to M.ROOT-SERVERS.NET.
• Critical DNS infrastructure, not eyeball, hosting or enterprise space. It has no honest "kind" in a commercial network taxonomy, and geolocating it to a single country is misleading: the prefix is announced from many anycast sites at once.
• Sibling root-server ASNs carded here include AS3557 (F-root, ISC) and AS5927 (G-root).

Interesting

• WIDE is an academic/industry research consortium, not a carrier, which makes M one of the few root servers run by a research project rather than a company, university or government body. The same project has long been central to Japan's internet research, including early IPv6 work.

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

Announced prefixes

• 192.50.45.0/24
• 202.12.26.0/23
• 202.13.183.0/24
• 2001:dc3::/32

Upstream networks

• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS2516 KDDI CORPORATION
• AS2497 Internet Initiative Japan Inc.
• AS3356 Level 3 Parent, LLC
• AS2200 Renater
• AS4608 Asia Pacific Network Information Centre
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS24482 SG.GS
• AS48185 team.blue NV
• AS50673 Serverius Holding B.V.
• AS204092 Association GRIFON
• AS50628 Leonix Telecom SAS
• AS17639 Converge ICT Solutions Inc.
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS37100 SEACOM Limited
• AS2500 WIDE Project
• AS37721 Virtual Technologies & Solutions
• AS29632 Netassist International EOOD
• AS55720 Gigabit Hosting Sdn Bhd
• AS2518 BIGLOBE Inc.
• AS20485 Joint Stock Company TransTeleCom
• AS57463 NetIX Communications JSC
• AS58057 Securebit AG
• AS6696 VERIXI SA

Downstream networks

• AS23634 WIDE Project
• AS112 DNS-OARC

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS23634 WIDE Project
• AS3257 GTT Communications Inc.
• AS2516 KDDI CORPORATION
• AS3356 Level 3 Parent, LLC
• AS2497 Internet Initiative Japan Inc.
• AS2200 Renater
• AS24482 SG.GS
• AS50628 Leonix Telecom SAS
• AS4608 Asia Pacific Network Information Centre
• AS37721 Virtual Technologies & Solutions
• AS9002 RETN Limited
• AS50673 Serverius Holding B.V.
• AS48185 team.blue NV
• AS204092 Association GRIFON
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS37100 SEACOM Limited
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS17639 Converge ICT Solutions Inc.
• AS2500 WIDE Project
• AS29632 Netassist International EOOD
• AS58057 Securebit AG
• AS6696 VERIXI SA
• AS55720 Gigabit Hosting Sdn Bhd
• AS2518 BIGLOBE Inc.

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• OpenIXP Internet exchange Point — Jakarta, Indonesia
• Indonesian Internet Exchange (IIX-Jakarta) — Jakarta, Indonesia
• Neutral Internet Exchange — Amsterdam, Netherlands
• France-IX Paris — Paris, France
• Equinix Internet Exchange Singapore — Singapore, Singapore
• Hong Kong Internet Exchange — Hong Kong, China
• JPIX Tokyo — Tokyo, Japan
• Alien Internet Exchange — Depok, Indonesia
• Equinix Internet Exchange Paris — Paris, France
• Malaysia Internet Exchange — Kuala Lumpur, Malaysia
• DE-CIX Jakarta — Jakarta, Indonesia
• Fremont Cabal Internet Exchange — Fremont, United States
• National Internet Exchange of India - Mumbai — Mumbai, India
• BroadBand Internet eXchange Singapore — Singapore, Singapore
• InterLAN-IX — Bucharest, Romania
• DE-CIX ASEAN (Singapore, Malaysia, Brunei) — Singapore, Singapore
• Bangladesh Internet Exchange — Dhaka, Bangladesh
• GetaFIX Manila — Manila, Philippines
• JPIX Osaka — Osaka, Japan
• Megaport IX Brisbane — Brisbane, Australia
• San Francisco Metropolitan Internet Exchange — San Francisco, United States
• IX Australia (Brisbane QLD) — Brisbane, Australia
• Bangkok Neutral Internet Exchange — Bangkok, Thailand
• Korea Internet Neutral Exchange KINX — Seoul, South Korea
• Nepal Internet Exchange - Putalisadak — Kathmandu, Nepal
• Cambodian Network Exchange — Phnom Penh, Cambodia
• Philippine Open Internet Exchange — Manila, Philippines
• Kolkata IX — Kolkata, India
• MISPA internet exchange point — Ulaanbaatar, Mongolia
• Bhutan Internet Exchange — Thimphu, Bhutan
• GetaFIX Cebu — Cebu, Philippines
• Maldives Internet Exchange — Male, Maldives