SUBNET.IM

AS399856Pratt Institute

United StatesRegistryARIN

At a glance

IPv4 prefixes

3

IPv6 prefixes

0

IPv4 addresses

1.8k

IPv6 /64s

0

Upstream graph

The networks AS399856 is seen behind, one and two hops out, drawn from real AS paths.

AS399856Toward the internet core
Upstream graph for AS399856: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399856Pratt InstituteThis networkAS174Cogent Communicat…AS3630NYSERNetAS3754NYSERNetAS54004Cablevision Light…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS3755NYSERNetAS49544i3D.net B.VAS293ESnetAS11537Internet2AS6128Cablevision Syste…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS399856 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 AS399856
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer12542
AS54004Cablevision Lightpath LLCUSPeer10335
AS3754NYSERNetUSPeer62
AS3630NYSERNetUSPeer31

Prefixes

The largest blocks AS399856 originates, widest first.

Largest prefixes originated by AS399856
PrefixAddressesVisibility
45.45.228.0/221k79/80
65.51.58.0/2351279/80
45.45.228.0/2425679/80

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