SUBNET.IM

AS21742

RegistryARIN

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

256

IPv6 /64s

0

Upstream graph

The networks AS21742 is seen behind, one and two hops out, drawn from real AS paths.

AS21742Toward the internet core
Upstream graph for AS21742: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21742This networkAS17378TierPoint, LLCAS3356Lumen (Level 3)AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS21742 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS21742
NetworkCountryRelationshipPathsVantage pts
AS17378TierPoint, LLCUSPeer7979

Prefixes

The largest blocks AS21742 originates, widest first.

Largest prefixes originated by AS21742
PrefixAddressesVisibility
74.202.63.0/2425679/80

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