SUBNET.IM

AS17509STARNET Co.,Ltd.

JapanRegistryAPNIC

At a glance

IPv4 prefixes

3

IPv6 prefixes

2

IPv4 addresses

6.4k

IPv6 /64s

4.3B

Upstream graph

The networks AS17509 is seen behind, one and two hops out, drawn from real AS paths.

AS17509Toward the internet core
Upstream graph for AS17509: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS17509STARNET Co.,Ltd.This networkAS2516KDDI CorporationAS2519ARTERIA Networks …AS4725SoftBank Corp.AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS2914NTT America, Inc.AS17676SoftBank Corp.

Networks observed one and two hops upstream of AS17509 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 AS17509
NetworkCountryRelationshipPathsVantage pts
AS4725SoftBank Corp.JPPeer141141
AS2516KDDI CorporationJPPeer11376
AS2519ARTERIA Networks CorporationJPPeer10664

Prefixes

The largest blocks AS17509 originates, widest first.

Largest prefixes originated by AS17509
PrefixAddressesVisibility
203.140.192.0/204.1k79/80
202.15.32.0/212k79/80
203.140.207.0/2425680/80
2404:3200::/324.3B × /6461/62
2404:3200:3::/4865.5k × /6461/62

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