asn.dev

Observed topology

AS200924 SIS2

Upstreams 21 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 22
Adjacent (IPv6) 19

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS200924: 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
AS33891Core-Backbone GmbHHostingIPv4 IPv6721
AS3356Level 3 Parent, LLCTransitIPv4280
AS6939Hurricane Electric LLCTransitIPv4 IPv6279
AS1299Arelion Sweden ABTransitIPv4 IPv6267
AS2914NTT America, Inc.TransitIPv4 IPv6259
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6154
AS34019Hivane AssociationUnclassifiedIPv4 IPv642
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv642
AS24482SG.GSHostingIPv4 IPv642
AS1836green.ch AGResidentialIPv4 IPv642
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv642
AS212024Marc SchmittUnclassifiedIPv4 IPv642
AS12779IT.Gate S.p.A.UnclassifiedIPv435
AS20485Joint Stock Company TransTeleComUnclassifiedIPv435
AS37100SEACOM LimitedUnclassifiedIPv435
AS3303Swisscom (Schweiz) AGResidentialIPv435
AS57463NetIX Communications JSCUnclassifiedIPv435
AS12552GlobalConnect ABUnclassifiedIPv435
AS29632Netassist International EOODUnclassifiedIPv614
AS56662Marcin GondekUnclassifiedIPv67
AS213241TECHIT.BE SRLResidentialIPv67

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 AS200924 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS212693Cable 4 GmbHUnclassifiedIPv4 IPv6159
AS210852Layer7 GmbHUnclassifiedIPv4 IPv656
AS15894LEITWERK AGHostingIPv4 IPv634
AS13054badenIT GmbHResidentialIPv4 IPv68

Adjacency

Adjacent networks

41 shown

Every AS seen directly next to AS200924 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS33891Core-Backbone GmbHHostingIPv4 IPv6819
AS2914NTT America, Inc.TransitIPv4 IPv6334
AS3356Level 3 Parent, LLCTransitIPv4 IPv6315
AS6939Hurricane Electric LLCTransitIPv4 IPv6313
AS1299Arelion Sweden ABTransitIPv4 IPv6271
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6167
AS212693Cable 4 GmbHUnclassifiedIPv4 IPv6159
AS15894LEITWERK AGHostingIPv4 IPv6119
AS1836green.ch AGResidentialIPv4 IPv665
AS210852Layer7 GmbHUnclassifiedIPv4 IPv656
AS3303Swisscom (Schweiz) AGResidentialIPv451
AS212024Marc SchmittUnclassifiedIPv4 IPv647
AS24482SG.GSHostingIPv4 IPv647
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv647
AS34019Hivane AssociationUnclassifiedIPv4 IPv647
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv644
AS57463NetIX Communications JSCUnclassifiedIPv438
AS37100SEACOM LimitedUnclassifiedIPv438
AS20485Joint Stock Company TransTeleComUnclassifiedIPv438
AS12779IT.Gate S.p.A.UnclassifiedIPv438
AS12552GlobalConnect ABUnclassifiedIPv437
AS29632Netassist International EOODUnclassifiedIPv618
AS56662Marcin GondekUnclassifiedIPv69
AS213241TECHIT.BE SRLResidentialIPv69
AS13054badenIT GmbHResidentialIPv4 IPv68

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 AS200924, 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
DE-CIX FrankfurtFrankfurt, Germany80.81.193.1111,073
SwissIXZurich, Switzerland91.206.52.111253
Stuttgarter Internet ExchangeStuttgart, Germany193.138.31.3637

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 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 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.