SUBNET.IM

AS13748Cold Spring Harbor Laboratory

United StatesRegistryARIN

At a glance

IPv4 prefixes

5

IPv6 prefixes

0

IPv4 addresses

132k

IPv6 /64s

0

Upstream graph

The networks AS13748 is seen behind, one and two hops out, drawn from real AS paths.

AS13748Toward the internet core
Upstream graph for AS13748: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS13748Cold Spring Harbo…This networkAS46887Zayo BandwidthAS54004Cablevision Light…AS3356Lumen (Level 3)AS6461Zayo BandwidthAS6128Cablevision Syste…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS13748 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 AS13748
NetworkCountryRelationshipPathsVantage pts
AS46887Zayo BandwidthUSPeer39780
AS54004Cablevision Lightpath LLCUSPeer33

Prefixes

The largest blocks AS13748 originates, widest first.

Largest prefixes originated by AS13748
PrefixAddressesVisibility
143.48.0.0/1665.5k80/80
143.48.0.0/1732.8k80/80
143.48.128.0/1732.8k80/80
143.48.210.0/2425680/80
143.48.220.0/2425680/80

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