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AS2519ARTERIA Networks Corporation

JapanRegistryAPNICTypeEyeball

As of 11th November 2026, AS2519 (ARTERIA Networks Corporation), an access network registered in Japan with APNIC, originates 182 IPv4 prefixes covering 1.5M addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 365th-largest of the 80,747 networks we see originating IPv4, and the 21st-largest of 737 in Japan. It is seen behind 14 upstream networks, most often AS3356 (Lumen (Level 3)) and AS2497 (Internet Initiative Japan Inc.), and in front of 75 downstream networks. 56% 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

182

IPv6 prefixes

2

IPv4 addresses

1.5M

IPv6 /64s

103B

Upstream graph

The networks AS2519 is seen behind, one and two hops out, drawn from real AS paths.

AS2519Toward the internet core
Upstream graph for AS2519: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS2519ARTERIA Networks …This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS2497Internet Initiati…AS3356Lumen (Level 3)AS4637Telstra Internati…AS151326DCConnect Communi…AS13030Init7 (Switzerlan…AS2914NTT America, Inc.AS16552Tiggee LLCAS3549Lumen (fka. Globa…AS32590Valve Corporation

Networks observed one and two hops upstream of AS2519 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

204

adjacent networks

Upstreams
147%
Peers
11556%
Downstreams
7537%

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

Upstreams of AS2519
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer12,17259
AS2497Internet Initiative Japan Inc.JPPeer11,33165
AS1299Arelion (fka. Telia Carrier)SEPeer9,83269
AS4637Telstra International LimitedHKPeer9,73176
AS174Cogent Communications, LLCUSPeer6,04041
AS49544i3D.net B.VNLPeer1,6914
AS24482SG.GSSGPeer1,3392
AS199524Gcore S.A.LUPeer1,2461
AS18106Viewqwest Pte LtdSGPeer1,1754
AS24940Hetzner Online GmbHDEPeer1,1692

Prefixes

All 184

The largest blocks AS2519 originates, widest first.

Largest prefixes originated by AS2519
PrefixAddressesVisibility
115.179.0.0/1665.5k76/76
133.175.0.0/1665.5k76/76
163.139.0.0/1665.5k76/76
183.180.0.0/1665.5k76/76
202.215.0.0/1665.5k76/76
222.230.0.0/1665.5k76/76
27.121.128.0/1732.8k76/76
114.69.0.0/1732.8k76/76
122.103.0.0/1732.8k76/76
122.222.0.0/1732.8k76/76

Routing health

How AS2519'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

  • Valid56.0%103
  • Invalid0.0%0
  • No ROA44.0%81

Propagation

  • Globally propagated90% of full-feed peers or more100.0%184
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 182 prefixes

IPv6 — 2 prefixes

  • /2868.7B × /6450.0%1
  • /2934.4B × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS2519 started or stopped in this period.

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