SUBNET.IM

AS20University of Rochester

United StatesRegistryARIN

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

66k

IPv6 /64s

16.8M

Upstream graph

The networks AS20 is seen behind, one and two hops out, drawn from real AS paths.

AS20Toward the internet core
Upstream graph for AS20: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20University of Roc…This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS3630NYSERNetAS3754NYSERNetAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS3755NYSERNetAS49544i3D.net B.VAS293ESnetAS11537Internet2

Networks observed one and two hops upstream of AS20 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

8

adjacent networks

Upstreams
450%
Peers
450%
Downstreams
00%

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

Upstreams of AS20
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer17383
AS174Cogent Communications, LLCUSPeer11452
AS3754NYSERNetUSPeer62
AS3630NYSERNetUSPeer42

Prefixes

The largest blocks AS20 originates, widest first.

Largest prefixes originated by AS20
PrefixAddressesVisibility
128.151.0.0/1665.5k79/80
192.5.53.0/2425679/80
199.89.214.0/2425679/80
2620:107:a000::/4016.8M × /6460/62

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