subnet.im

AS8309SIPARTECH SAS

FranceRegistryRIPE NCC

As of 23rd October 2026, AS8309 (SIPARTECH SAS), a network registered in France with RIPE NCC, originates 8 IPv4 prefixes covering 68.9k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 3,162nd-largest of the 79,659 networks we see originating IPv4, and the 38th-largest of 1,368 in France. It is seen behind 53 upstream networks, most often AS9002 (RETN Limited) and AS174 (Cogent Communications, LLC), and in front of 19 downstream networks. Every one of its announcements has 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

8

IPv6 prefixes

7

IPv4 addresses

68.9k

IPv6 /64s

34.4B

Upstream graph

The networks AS8309 is seen behind, one and two hops out, drawn from real AS paths.

AS8309Toward the internet core
Upstream graph for AS8309: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8309SIPARTECH SASThis networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS5511Orange S.A.AS6762Telecom Italia Sp…AS9002RETN LimitedAS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS6453TATA Communicatio…AS52075Wifirst S.A.S.

Networks observed one and two hops upstream of AS8309 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

356

adjacent networks

Upstreams
5315%
Peers
28480%
Downstreams
195%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 53.

Upstreams of AS8309
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer94132
AS174Cogent Communications, LLCUSPeer52082
AS6762Telecom Italia Sparkle (Seabone)ITPeer20411
AS3356Lumen (Level 3)USPeer1686
AS5511Orange S.A.FRPeer16711
AS14537Continent 8 LLCUSPeer1464
AS18106Viewqwest Pte LtdSGPeer1424
AS13030Init7 (Switzerland) Ltd.CHPeer1404
AS7713PT Telkom Indonesia TbkIDPeer1383
AS6939Hurricane Electric LLCUSPeer1346

Prefixes

The largest blocks AS8309 originates, widest first.

Largest prefixes originated by AS8309
PrefixAddressesVisibility
37.19.128.0/1816.4k77/77
144.56.192.0/1816.4k77/77
217.180.128.0/1816.4k77/77
62.129.0.0/198.2k77/77
144.56.160.0/198.2k77/77
144.56.152.0/212k77/77
144.56.148.0/221k76/77
185.46.164.0/2425677/77
2a06:19c0::/2934.4B × /6464/64
2a13:7505:2::/4865.5k × /6464/64

Routing health

How AS8309'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

  • Valid100.0%15
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%15
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 8 prefixes

IPv6 — 7 prefixes

  • /2934.4B × /6414.3%1
  • /4865.5k × /6485.7%6

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS8309 started or stopped in this period.

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