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AS7500WIDE Project - M-root

JapanRegistryAPNIC

As of 26th September 2026, AS7500 (WIDE Project - M-root), a network registered in Japan with APNIC, originates 4 IPv4 prefixes covering 1.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 33,367th-largest of the 79,516 networks we see originating IPv4, and the 518th-largest of 729 in Japan. It is seen behind 31 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS3257 (GTT Communications Inc.), and in front of 2 downstream networks. 60% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

4

IPv6 prefixes

1

IPv4 addresses

1.3k

IPv6 /64s

4.3B

Upstream graph

The networks AS7500 is seen behind, one and two hops out, drawn from real AS paths.

AS7500Toward the internet core
Upstream graph for AS7500: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7500WIDE Project - M-…This networkAS2497Internet Initiati…AS2516KDDI CorporationAS3257GTT Communication…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS6667Elisa OyjAS398465Rackdog LLCAS3549Lumen (fka. Globa…AS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS7500 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

205

adjacent networks

Upstreams
3115%
Peers
17284%
Downstreams
21%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS7500
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer260100
AS3257GTT Communications Inc.USPeer4332
AS2497Internet Initiative Japan Inc.JPPeer2721
AS3356Lumen (Level 3)USPeer1611
AS2516KDDI CorporationJPPeer108
AS2518BIGLOBE Inc.JPPeer1010
AS14537Continent 8 LLCUSPeer84
AS35280F5 Networks SARLFRPeer84
AS2200RenaterFRPeer84
AS49544i3D.net B.VNLPeer84

Prefixes

The largest blocks AS7500 originates, widest first.

Largest prefixes originated by AS7500
PrefixAddressesVisibility
202.12.26.0/2351277/81
192.50.45.0/2425681/81
202.12.27.0/2425676/81
202.13.183.0/2425681/81
2001:dc3::/324.3B × /6464/64

Routing health

How AS7500's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid60.0%3
  • Invalid0.0%0
  • No ROA40.0%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS7500 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.