SUBNET.IM

AS131903Nomura Research Institute,Ltd.

JapanRegistryAPNIC

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

256

IPv6 /64s

0

Upstream graph

The networks AS131903 is seen behind, one and two hops out, drawn from real AS paths.

AS131903Toward the internet core
Upstream graph for AS131903: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS131903Nomura Research I…This networkAS2516KDDI CorporationAS10021KVH Co.,LtdAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS8220COLT

Networks observed one and two hops upstream of AS131903 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS131903
NetworkCountryRelationshipPathsVantage pts
AS2516KDDI CorporationJPPeer4343
AS10021KVH Co.,LtdJPPeer3737

Prefixes

The largest blocks AS131903 originates, widest first.

Largest prefixes originated by AS131903
PrefixAddressesVisibility
103.59.89.0/2425680/80

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