SUBNET.IM

AS131897National University Corporation ,Ehime University

JapanRegistryAPNIC

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

65.5k

IPv6 /64s

0

Upstream graph

The networks AS131897 is seen behind, one and two hops out, drawn from real AS paths.

AS131897Toward the internet core
Upstream graph for AS131897: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS131897National Universi…This networkAS2907Science Informati…AS18260EHIME CATV CO.,LT…AS2497Internet Initiati…AS6939Hurricane Electri…AS2914NTT America, Inc.AS9607BroadBand Tower, …

Networks observed one and two hops upstream of AS131897 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 AS131897
NetworkCountryRelationshipPathsVantage pts
AS18260EHIME CATV CO.,LTD.JPPeer6969
AS2907Science Information NetworkJPPeer1111

Prefixes

The largest blocks AS131897 originates, widest first.

Largest prefixes originated by AS131897
PrefixAddressesVisibility
133.71.0.0/1665.5k80/80

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