Autonomous system
AS7500 M-ROOT-DNS WIDE Project
Hosting APNIC
Summary
WIDE Project (M-Root DNS)
research legacy
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
202.12.27.33is 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 toM.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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 33 exchanges in 21 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.215.148 |
| OpenIXP Internet exchange Point | Jakarta, Indonesia | 43.252.146.88 |
| Indonesian Internet Exchange (IIX-Jakarta) | Jakarta, Indonesia | 123.108.9.99 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.116.217 |
| France-IX Paris | Paris, France | 37.49.237.106 |
| Equinix Internet Exchange Singapore | Singapore, Singapore | 27.111.230.170 |
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.92.67 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.5 |
Transit providers
27 upstream, 2 downstream and 41 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 1.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 4 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS7500- Registry name
- M-ROOT-DNS
- Registered
- 1997-03-03
- Last changed
- 2006-11-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 60% valid · 3 valid, 2 with no ROA
- ROAs
- 7 authorising AS7500
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 9 naming AS7500
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere