subnet.im

AS7527Japan Internet Xing Co., Ltd.

JapanRegistryAPNIC

As of 11th November 2026, AS7527 (Japan Internet Xing Co., Ltd.), a network registered in Japan with APNIC, originates 2 IPv4 prefixes covering 1.5k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 31,739th-largest of the 80,747 networks we see originating IPv4, and the 510th-largest of 737 in Japan. It is seen behind 2 upstream networks, most often AS2497 (Internet Initiative Japan Inc.) and AS2516 (KDDI Corporation), and in front of 1 downstream network. Every one of its announcements has 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

2

IPv6 prefixes

1

IPv4 addresses

1.5k

IPv6 /64s

4.3B

Upstream graph

The networks AS7527 is seen behind, one and two hops out, drawn from real AS paths.

AS7527Toward the internet core
Upstream graph for AS7527: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7527Japan Internet Xi…This networkAS2497Internet Initiati…AS2516KDDI CorporationAS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS7527 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

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

Upstreams of AS7527
NetworkCountryRelationshipPathsVantage pts
AS2497Internet Initiative Japan Inc.JPPeer183111
AS2516KDDI CorporationJPPeer10799

Prefixes

The largest blocks AS7527 originates, widest first.

Largest prefixes originated by AS7527
PrefixAddressesVisibility
210.171.228.0/221k76/76
210.171.226.0/2351276/76
2400:3000::/324.3B × /6463/63

Routing health

How AS7527'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

  • Valid100.0%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS7527 started or stopped in this period.

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