SUBNET.IM

AS42081European Centre for Medium-Range Weather Forecasts (ECMWF)

United KingdomRegistryRIPE NCC

At a glance

IPv4 prefixes

7

IPv6 prefixes

2

IPv4 addresses

28.4k

IPv6 /64s

131k

Upstream graph

The networks AS42081 is seen behind, one and two hops out, drawn from real AS paths.

AS42081Toward the internet core
Upstream graph for AS42081: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS42081European Centre f…This networkAS137Consortium GARRAS31638Lepida S.c.p.A.AS174Cogent Communicat…AS6762Telecom Italia Sp…AS9002RETN Limited

Networks observed one and two hops upstream of AS42081 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 AS42081
NetworkCountryRelationshipPathsVantage pts
AS137Consortium GARRITPeer547139
AS31638Lepida S.c.p.A.ITPeer128128

Prefixes

The largest blocks AS42081 originates, widest first.

Largest prefixes originated by AS42081
PrefixAddressesVisibility
136.156.192.0/1816.4k79/80
136.156.128.0/204.1k79/80
136.156.144.0/204.1k79/80
136.156.40.0/212k79/80
136.156.32.0/221k79/80
77.83.224.0/2351278/80
77.83.226.0/2425680/80
2a09:9180:ecfb::/4865.5k × /6462/62
2a09:9180:ecfd::/4865.5k × /6460/62

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