asn.dev

Observed topology

AS7522 STCN STNet, Incorporated

Upstreams 27 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 28
Adjacent (IPv6) 18

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS7522: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6868
AS6939Hurricane Electric LLCTransitIPv4378
AS2516KDDI CORPORATIONMobileIPv4 IPv6350
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv6344
AS4637Telstra GlobalUnclassifiedIPv4 IPv6217
AS2519ARTERIA Networks CorporationUnclassifiedIPv4167
AS50673Serverius Holding B.V.UnclassifiedIPv4108
AS17676SoftBank Corp.MobileIPv4 IPv672
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv655
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv655
AS24482SG.GSHostingIPv4 IPv655
AS48185team.blue NVUnclassifiedIPv4 IPv655
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv655
AS12779IT.Gate S.p.A.UnclassifiedIPv454
AS3216PJSC "Vimpelcom"MobileIPv454
AS17639Converge ICT Solutions Inc.UnclassifiedIPv454
AS37100SEACOM LimitedUnclassifiedIPv454
AS57463NetIX Communications JSCUnclassifiedIPv454
AS12552GlobalConnect ABUnclassifiedIPv454
AS37721Virtual Technologies & SolutionsResidentialIPv454
AS20766Association "Gitoyen"UnclassifiedIPv454
AS34927iFog GmbHHostingIPv454
AS7575Australian Academic and Research Network (AARNet)EducationIPv453
AS10010TOKAI Communications CorporationResidentialIPv44
AS29632Netassist International EOODUnclassifiedIPv62
AS213241TECHIT.BE SRLResidentialIPv61
AS34019Hivane AssociationUnclassifiedIPv61

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS7522 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS9618catv-tokushimaResidentialIPv4 IPv6159
AS58647Kagawa UniversityUnclassifiedIPv4114
AS18260EHIME CATV CO.,LTD.UnclassifiedIPv4 IPv6101

Adjacency

Adjacent networks

46 shown

Every AS seen directly next to AS7522 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6952
AS2516KDDI CORPORATIONMobileIPv4 IPv6450
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv6421
AS6939Hurricane Electric LLCTransitIPv4412
AS4637Telstra GlobalUnclassifiedIPv4 IPv6326
AS18260EHIME CATV CO.,LTD.UnclassifiedIPv4 IPv6214
AS2519ARTERIA Networks CorporationUnclassifiedIPv4187
AS9618catv-tokushimaResidentialIPv4 IPv6159
AS58647Kagawa UniversityUnclassifiedIPv4114
AS50673Serverius Holding B.V.UnclassifiedIPv4108
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv690
AS17676SoftBank Corp.MobileIPv4 IPv678
AS24482SG.GSHostingIPv4 IPv660
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv659
AS7575Australian Academic and Research Network (AARNet)EducationIPv456
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv655
AS48185team.blue NVUnclassifiedIPv4 IPv655
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv655
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv655
AS12552GlobalConnect ABUnclassifiedIPv454
AS57463NetIX Communications JSCUnclassifiedIPv454
AS37100SEACOM LimitedUnclassifiedIPv454
AS3216PJSC "Vimpelcom"MobileIPv454
AS34927iFog GmbHHostingIPv454
AS12779IT.Gate S.p.A.UnclassifiedIPv454
AS20766Association "Gitoyen"UnclassifiedIPv454
AS213241TECHIT.BE SRLResidentialIPv66
AS10010TOKAI Communications CorporationResidentialIPv44
AS1103SURF B.V.UnclassifiedIPv4 IPv63
AS29632Netassist International EOODUnclassifiedIPv62
AS34019Hivane AssociationUnclassifiedIPv61

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS7522, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 12 exchanges across 6 countries and 3 regions.

ExchangeLocationTheir addressMember ports
AMS-IX AmsterdamAmsterdam, Netherlands80.249.212.220894
BroadBand Internet eXchange TokyoTokyo, Japan101.203.88.19359
Coresite - Any2 WestLos Angeles, United States206.72.211.236344
Any2 CaliforniaLos Angeles, United States206.72.211.236321
JPIX TokyoTokyo, Japan210.171.224.151259
BroadBand Internet eXchange SingaporeSingapore, Singapore103.231.152.134151
BroadBand Internet eXchange OsakaOsaka, Japan218.100.9.160132
Equinix Internet Exchange TokyoTokyo, Japan2001:de8:5::7522:1124
JPIX OsakaOsaka, Japan103.246.232.151114
BroadBand Internet eXchange Hong KongHong Kong, China103.203.158.134101
Korea Internet Neutral Exchange KINXSeoul, South Korea139.150.100.14464
Network Service Provider IXP (Distributed IX in Edo)Tokyo, Japan202.249.2.14928

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.