SUBNET.IM

AS37891JR TOKAI Information Systems Company

JapanRegistryAPNIC

At a glance

IPv4 prefixes

8

IPv6 prefixes

0

IPv4 addresses

3.8k

IPv6 /64s

0

Upstream graph

The networks AS37891 is seen behind, one and two hops out, drawn from real AS paths.

AS37891Toward the internet core
Upstream graph for AS37891: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS37891JR TOKAI Informat…This networkAS2497Internet Initiati…AS2516KDDI CorporationAS4713NTT Communication…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS37891 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
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS37891
NetworkCountryRelationshipPathsVantage pts
AS2497Internet Initiative Japan Inc.JPPeer39579
AS2516KDDI CorporationJPPeer18963
AS4713NTT Communications Corporation (OCN)JPPeer5117

Prefixes

The largest blocks AS37891 originates, widest first.

Largest prefixes originated by AS37891
PrefixAddressesVisibility
58.147.160.0/212k80/80
58.147.162.0/2425679/80
58.147.163.0/2425679/80
58.147.165.0/2425679/80
58.147.166.0/2425679/80
58.147.167.0/2425679/80
192.218.65.0/2425680/80
192.218.66.0/2425680/80

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