subnet.im

AS16276OVH SAS

FranceRegistryRIPE NCCTypeContent

As of 26th September 2026, AS16276 (OVH SAS), a content network registered in France with RIPE NCC, originates 709 IPv4 prefixes covering 4.7M addresses and 42 IPv6 prefixes. By IPv4 address space that makes it the 142nd-largest of the 79,480 networks we see originating IPv4, and the 5th-largest of 1,365 in France. It is seen behind 88 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS174 (Cogent Communications, LLC), and in front of 241 downstream networks. 88% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

709

IPv6 prefixes

42

IPv4 addresses

4.7M

IPv6 /64s

17.2B

Upstream graph

The networks AS16276 is seen behind, one and two hops out, drawn from real AS paths.

AS16276Toward the internet core
Upstream graph for AS16276: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS16276OVH SASThis networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS2497Internet Initiati…AS3356Lumen (Level 3)AS12956Telxius (Telefoni…AS151326DCConnect Communi…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS32590Valve Corporation

Networks observed one and two hops upstream of AS16276 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

6,468

adjacent networks

Upstreams
881%
Peers
6,13995%
Downstreams
2414%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 88.

Upstreams of AS16276
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer6,754120
AS174Cogent Communications, LLCUSPeer6,302139
AS3356Lumen (Level 3)USPeer4,88718
AS12956Telxius (Telefonica Global)ESPeer4,46473
AS2497Internet Initiative Japan Inc.JPPeer3,4515
AS4637Telstra International LimitedHKPeer3,081100
AS7713PT Telkom Indonesia TbkIDPeer2,6385
AS14537Continent 8 LLCUSPeer2,3324
AS9002RETN LimitedGBPeer2,33162
AS35280F5 Networks SARLFRPeer2,2625

Prefixes

All 751

The largest blocks AS16276 originates, widest first.

Largest prefixes originated by AS16276
PrefixAddressesVisibility
51.254.0.0/15131k81/81
178.32.0.0/15131k81/81
5.135.0.0/1665.5k81/81
5.196.0.0/1665.5k81/81
37.59.0.0/1665.5k81/81
37.187.0.0/1665.5k81/81
46.105.0.0/1665.5k81/81
51.38.0.0/1665.5k81/81
51.68.0.0/1665.5k81/81
51.75.0.0/1665.5k81/81

Routing health

How AS16276'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

  • Valid88.0%661
  • Invalid0.1%1
  • No ROA11.9%89

Propagation

  • Globally propagated90% of full-feed peers or more99.9%750
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.1%1

Prefix sizes

IPv4 — 709 prefixes

IPv6 — 42 prefixes

  • /324.3B × /649.5%4
  • /4016.8M × /649.5%4
  • /4865.5k × /6481.0%34

Recent changes

Announcements that started or stopped since 27th Aug 2026.

44 announced and 37 withdrawn in all; the most recent are shown.

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