SUBNET.IM

AS31221nLighten France SAS

FranceRegistryRIPE NCC

At a glance

IPv4 prefixes

7

IPv6 prefixes

1

IPv4 addresses

6.4k

IPv6 /64s

4.3B

Upstream graph

The networks AS31221 is seen behind, one and two hops out, drawn from real AS paths.

AS31221Toward the internet core
Upstream graph for AS31221: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS31221nLighten France S…This networkAS3356Lumen (Level 3)AS8218Zayo EuropeAS29075IELO-LIAZO SERVIC…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS6461Zayo BandwidthAS34288Kantonsschule ZugAS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS31221 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

17

adjacent networks

Upstreams
318%
Peers
953%
Downstreams
529%

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

Upstreams of AS31221
NetworkCountryRelationshipPathsVantage pts
AS29075IELO-LIAZO SERVICES SASFRPeer41093
AS8218Zayo EuropeFRPeer34780
AS3356Lumen (Level 3)USPeer25655

Prefixes

The largest blocks AS31221 originates, widest first.

Largest prefixes originated by AS31221
PrefixAddressesVisibility
217.13.48.0/204.1k80/80
185.43.36.0/221k80/80
5.252.57.0/2425680/80
193.135.126.0/2425680/80
193.218.120.0/2425680/80
217.13.48.0/2425680/80
217.13.63.0/2425680/80
2a02:6f0::/324.3B × /6462/62

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