SUBNET.IM

AS20404NRG Energy, Inc.

United StatesRegistryARIN

At a glance

IPv4 prefixes

7

IPv6 prefixes

0

IPv4 addresses

2.3k

IPv6 /64s

0

Upstream graph

The networks AS20404 is seen behind, one and two hops out, drawn from real AS paths.

AS20404Toward the internet core
Upstream graph for AS20404: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20404NRG Energy, Inc.This networkAS6461Zayo BandwidthAS46887Zayo BandwidthAS6667Elisa OyjAS32590Valve CorporationAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS20404 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 AS20404
NetworkCountryRelationshipPathsVantage pts
AS46887Zayo BandwidthUSPeer28580
AS6461Zayo BandwidthUSPeer27580

Prefixes

The largest blocks AS20404 originates, widest first.

Largest prefixes originated by AS20404
PrefixAddressesVisibility
158.81.208.0/2351280/80
158.81.210.0/2351280/80
158.81.153.0/2425680/80
158.81.160.0/2425680/80
158.81.168.0/2425680/80
158.81.251.0/2425680/80
158.81.252.0/2425680/80

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