SUBNET.IM

AS400421Softheon, Inc.

United StatesRegistryARIN

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

512

IPv6 /64s

0

Upstream graph

The networks AS400421 is seen behind, one and two hops out, drawn from real AS paths.

AS400421Toward the internet core

Networks observed one and two hops upstream of AS400421 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS400421
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer6464
AS54004Cablevision Lightpath LLCUSPeer1111
AS47869ColoHouse LLCUSPeer55

Prefixes

The largest blocks AS400421 originates, widest first.

Largest prefixes originated by AS400421
PrefixAddressesVisibility
138.84.204.0/2351280/80

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