SUBNET.IM

AS40387University of Illinois

United StatesRegistryARIN

At a glance

IPv4 prefixes

1

IPv6 prefixes

1

IPv4 addresses

2k

IPv6 /64s

65.5k

Upstream graph

The networks AS40387 is seen behind, one and two hops out, drawn from real AS paths.

AS40387Toward the internet core
Upstream graph for AS40387: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS40387University of Ill…This networkAS293ESnetAS1299Arelion (fka. Tel…AS11164Internet2 I2PXAS11537Internet2AS23473PAVLOV MEDIA INCAS6453TATA Communicatio…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS2152CENIC - CalRENAS2497Internet Initiati…AS6939Hurricane Electri…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS40387 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

40

adjacent networks

Upstreams
718%
Peers
2665%
Downstreams
718%

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

Upstreams of AS40387
NetworkCountryRelationshipPathsVantage pts
AS23473PAVLOV MEDIA INCUSPeer1,10391
AS1299Arelion (fka. Telia Carrier)SEPeer66656
AS11164Internet2 I2PXUSPeer345
AS293ESnetUSPeer151
AS11537Internet2USPeer141
AS22335Metropolitan Research and Education NetworkUSPeer22
AS2381WiscNetUSPeer11

Prefixes

The largest blocks AS40387 originates, widest first.

Largest prefixes originated by AS40387
PrefixAddressesVisibility
72.36.120.0/212k80/80
2620:0:e10::/4865.5k × /6462/62

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