SUBNET.IM

AS20252Weill Cornell University Medical Sciences

United StatesRegistryARIN

At a glance

IPv4 prefixes

4

IPv6 prefixes

0

IPv4 addresses

98.8k

IPv6 /64s

0

Upstream graph

The networks AS20252 is seen behind, one and two hops out, drawn from real AS paths.

AS20252Toward the internet core
Upstream graph for AS20252: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20252Weill Cornell Uni…This networkAS174Cogent Communicat…AS3630NYSERNetAS3754NYSERNetAS12271Charter Communica…AS46887Zayo BandwidthAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS11537Internet2AS6453TATA Communicatio…AS7843Charter Communica…AS3356Lumen (Level 3)AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS20252 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

10

adjacent networks

Upstreams
550%
Peers
550%
Downstreams
00%

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

Upstreams of AS20252
NetworkCountryRelationshipPathsVantage pts
AS46887Zayo BandwidthUSPeer15980
AS174Cogent Communications, LLCUSPeer7826
AS12271Charter Communications IncUSPeer7727
AS3754NYSERNetUSPeer42
AS3630NYSERNetUSPeer21

Prefixes

The largest blocks AS20252 originates, widest first.

Largest prefixes originated by AS20252
PrefixAddressesVisibility
157.139.0.0/1665.5k80/80
140.251.0.0/1732.8k80/80
38.146.193.0/2425680/80
207.162.253.0/2425680/80

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