SUBNET.IM

AS131905Japan Registry Services Co., Ltd.

JapanRegistryAPNIC

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

1k

IPv6 /64s

4.3B

Upstream graph

The networks AS131905 is seen behind, one and two hops out, drawn from real AS paths.

AS131905Toward the internet core
Upstream graph for AS131905: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS131905Japan Registry Se…This networkAS18149Japan Registry Se…AS2516KDDI CorporationAS2914NTT America, Inc.

Networks observed one and two hops upstream of AS131905 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 AS131905
NetworkCountryRelationshipPathsVantage pts
AS18149Japan Registry Service Co., Ltd.JPPeer302142

Prefixes

The largest blocks AS131905 originates, widest first.

Largest prefixes originated by AS131905
PrefixAddressesVisibility
103.198.208.0/2351280/80
103.198.210.0/2425680/80
219.100.72.0/2425680/80
2403:2880::/324.3B × /6462/62

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