SUBNET.IM

AS31770Ann & Robert H. Lurie Children's Hospital of Chicago

United StatesRegistryARIN

At a glance

IPv4 prefixes

9

IPv6 prefixes

0

IPv4 addresses

2.3k

IPv6 /64s

0

Upstream graph

The networks AS31770 is seen behind, one and two hops out, drawn from real AS paths.

AS31770Toward the internet core
Upstream graph for AS31770: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS31770Ann & Robert H. L…This networkAS6461Zayo BandwidthAS13499NEW CCH, LLCAS22335Metropolitan Rese…AS6667Elisa OyjAS32590Valve CorporationAS1828PacketFabric / Un…AS3356Lumen (Level 3)AS11164Internet2 I2PXAS11537Internet2

Networks observed one and two hops upstream of AS31770 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 AS31770
NetworkCountryRelationshipPathsVantage pts
AS13499NEW CCH, LLCUSPeer48080
AS6461Zayo BandwidthUSPeer16080
AS22335Metropolitan Research and Education NetworkUSPeer11

Prefixes

The largest blocks AS31770 originates, widest first.

Largest prefixes originated by AS31770
PrefixAddressesVisibility
192.206.211.0/2425680/80
192.206.212.0/2425680/80
192.206.216.0/242561/80
199.125.16.0/2425680/80
199.125.17.0/2425680/80
199.125.18.0/2425680/80
199.125.20.0/2425680/80
199.125.30.0/2425680/80
199.125.31.0/2425680/80

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