SUBNET.IM

AS51257CERIZ SASU

FranceRegistryRIPE NCC

At a glance

IPv4 prefixes

1

IPv6 prefixes

2

IPv4 addresses

256

IPv6 /64s

34.4B

Upstream graph

The networks AS51257 is seen behind, one and two hops out, drawn from real AS paths.

AS51257Toward the internet core
Upstream graph for AS51257: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS51257CERIZ SASUThis networkAS29075IELO-LIAZO SERVIC…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS51257 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 AS51257
NetworkCountryRelationshipPathsVantage pts
AS29075IELO-LIAZO SERVICES SASFRPeer204142

Prefixes

The largest blocks AS51257 originates, widest first.

Largest prefixes originated by AS51257
PrefixAddressesVisibility
171.22.146.0/2425680/80
2a05:d80::/2934.4B × /6462/62
2a05:d80:4000::/4865.5k × /6462/62

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