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AS39405Eurofiber France SAS

FranceRegistryRIPE NCC

As of 27th September 2026, AS39405 (Eurofiber France SAS), a network registered in France with RIPE NCC, originates 24 IPv4 prefixes covering 18.4k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 7,383rd-largest of the 79,536 networks we see originating IPv4, and the 100th-largest of 1,365 in France. It is seen behind 1 upstream network, most often AS35625 (Eurofiber France SAS), and in front of 1 downstream network. 75% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

24

IPv6 prefixes

4

IPv4 addresses

18.4k

IPv6 /64s

77.3B

Upstream graph

The networks AS39405 is seen behind, one and two hops out, drawn from real AS paths.

AS39405Toward the internet core
Upstream graph for AS39405: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS39405Eurofiber France …This networkAS35625Eurofiber France …AS3257GTT Communication…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS39405 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
125%
Peers
250%
Downstreams
125%

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

Upstreams of AS39405
NetworkCountryRelationshipPathsVantage pts
AS35625Eurofiber France SASFRPeer2,230146

Prefixes

All 28

The largest blocks AS39405 originates, widest first.

Largest prefixes originated by AS39405
PrefixAddressesVisibility
93.93.40.0/212k82/82
141.0.200.0/212k82/82
45.153.92.0/221k82/82
85.31.32.0/221k82/82
185.116.128.0/221k82/82
185.117.16.0/221k82/82
185.224.32.0/221k82/82
185.244.72.0/221k82/82
185.246.24.0/221k82/82
185.249.44.0/221k82/82

Routing health

How AS39405's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid75.0%21
  • Invalid0.0%0
  • No ROA25.0%7

Propagation

  • Globally propagated90% of full-feed peers or more100.0%28
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 24 prefixes

IPv6 — 4 prefixes

  • /2934.4B × /6450.0%2
  • /324.3B × /6450.0%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS39405 started or stopped in this period.

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