subnet.im

AS400947Shannon Medical Center

United StatesRegistryARIN

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

256

IPv6 /64s

0

Upstream graph

The networks AS400947 is seen behind, one and two hops out, drawn from real AS paths.

AS400947Toward the internet core
Upstream graph for AS400947: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS400947Shannon Medical C…This networkAS19108OptimumAS32505ConterraAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS174Cogent Communicat…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS400947 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS400947
NetworkCountryRelationshipPathsVantage pts
AS19108OptimumUSPeer7676
AS32505ConterraUSPeer33

Prefixes

The largest blocks AS400947 originates, widest first.

Largest prefixes originated by AS400947
PrefixAddressesVisibility
66.76.173.0/2425679/80

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