asn.dev

Observed topology

AS212175 STELIA

Upstreams 15 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 12
Adjacent (IPv6) 11

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS212175: 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
AS174Cogent Communications, LLCTransitIPv4 IPv6375
AS3257GTT Communications Inc.TransitIPv4 IPv6240
AS1299Arelion Sweden ABTransitIPv4 IPv662
AS6939Hurricane Electric LLCTransitIPv4 IPv646
AS9002RETN LimitedUnclassifiedIPv64
AS34549meerfarbig GmbH & Co. KGHostingIPv64
AS24482SG.GSHostingIPv4 IPv63
AS48362Stadtwerke FeldkirchResidentialIPv62
AS213241TECHIT.BE SRLResidentialIPv62
AS17639Converge ICT Solutions Inc.UnclassifiedIPv62
AS50300CustodianDC LimitedUnclassifiedIPv62
AS15412Flag Telecom UK LimitedUnclassifiedIPv41
AS37721Virtual Technologies & SolutionsResidentialIPv41
AS7575Australian Academic and Research Network (AARNet)EducationIPv41
AS57463NetIX Communications JSCUnclassifiedIPv41

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 AS212175 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS211091I P House LimitedUnclassifiedIPv4359
AS59493Cudo Ventures LtdUnclassifiedIPv460
AS59437Northern Data AGUnclassifiedIPv44

Adjacency

Adjacent networks

25 shown

Every AS seen directly next to AS212175 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6660
AS211091I P House LimitedUnclassifiedIPv4479
AS3257GTT Communications Inc.TransitIPv4 IPv6400
AS1299Arelion Sweden ABTransitIPv4 IPv6102
AS6939Hurricane Electric LLCTransitIPv4 IPv678
AS59493Cudo Ventures LtdUnclassifiedIPv460
AS24482SG.GSHostingIPv4 IPv617
AS57463NetIX Communications JSCUnclassifiedIPv414
AS7575Australian Academic and Research Network (AARNet)EducationIPv49
AS37721Virtual Technologies & SolutionsResidentialIPv49
AS15412Flag Telecom UK LimitedUnclassifiedIPv48
AS34549meerfarbig GmbH & Co. KGHostingIPv65
AS59437Northern Data AGUnclassifiedIPv44
AS9002RETN LimitedUnclassifiedIPv64
AS48362Stadtwerke FeldkirchResidentialIPv63
AS50300CustodianDC LimitedUnclassifiedIPv62
AS213241TECHIT.BE SRLResidentialIPv62
AS17639Converge ICT Solutions Inc.UnclassifiedIPv62

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 AS212175, 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 3 exchanges across 2 countries and 1 region.

ExchangeLocationTheir addressMember ports
LINX LON1London, United Kingdom195.66.231.41925
NetIXSofia, Bulgaria2001:67c:29f0::21:2175:1264
LINX ManchesterManchester, United Kingdom2001:7f8:4:2:0:3:3ccf:2145

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.