SUBNET.IM

AS203457Fundacio Institut de Ciencies Fotoniques (ICFO)

SpainRegistryRIPE NCC

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

512

IPv6 /64s

0

Upstream graph

The networks AS203457 is seen behind, one and two hops out, drawn from real AS paths.

AS203457Toward the internet core
Upstream graph for AS203457: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS203457Fundacio Institut…This networkAS12479Orange Espagne SAAS3356Lumen (Level 3)AS5511Orange S.A.

Networks observed one and two hops upstream of AS203457 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 AS203457
NetworkCountryRelationshipPathsVantage pts
AS12479Orange Espagne SAESPeer8080

Prefixes

The largest blocks AS203457 originates, widest first.

Largest prefixes originated by AS203457
PrefixAddressesVisibility
185.132.136.0/2351280/80

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