subnet.im

AS18383CAHI Corporation,

JapanRegistryAPNIC

As of 11th November 2026, AS18383 (CAHI Corporation,), a network registered in Japan with APNIC, originates 1 IPv4 prefix covering 4.1k addresses. By IPv4 address space that makes it the 17,380th-largest of the 80,743 networks we see originating IPv4, and the 406th-largest of 737 in Japan. It is seen behind 1 upstream network, most often AS7529 (GMO NetIRD, Inc.). 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

1

IPv6 prefixes

0

IPv4 addresses

4.1k

IPv6 /64s

0

Upstream graph

The networks AS18383 is seen behind, one and two hops out, drawn from real AS paths.

AS18383Toward the internet core
Upstream graph for AS18383: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18383CAHI Corporation,This networkAS7529GMO NetIRD, Inc.AS2497Internet Initiati…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS18383 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS18383
NetworkCountryRelationshipPathsVantage pts
AS7529GMO NetIRD, Inc.JPPeer7676

Prefixes

The largest blocks AS18383 originates, widest first.

Largest prefixes originated by AS18383
PrefixAddressesVisibility
202.10.96.0/204.1k76/76

Routing health

How AS18383'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%1
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS18383 started or stopped in this period.

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