asn.dev

Observed topology

AS29505 SWHL-AS Stadtwerke Luebeck Digital GmbH

Upstreams 26 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 25
Adjacent (IPv6) 17

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS29505: 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 IPv653
AS174Cogent Communications, LLCTransitIPv4 IPv644
AS6939Hurricane Electric LLCTransitIPv4 IPv629
AS8220COLT Technology Services Group LimitedHostingIPv4 IPv619
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv611
AS50673Serverius Holding B.V.UnclassifiedIPv44
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv64
AS212024Marc SchmittUnclassifiedIPv4 IPv64
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv64
AS24482SG.GSHostingIPv4 IPv64
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv64
AS34800Securebit AGUnclassifiedIPv43
AS37100SEACOM LimitedUnclassifiedIPv43
AS12552GlobalConnect ABUnclassifiedIPv43
AS12779IT.Gate S.p.A.UnclassifiedIPv43
AS20485Joint Stock Company TransTeleComUnclassifiedIPv43
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv63
AS48185team.blue NVUnclassifiedIPv4 IPv63
AS1836green.ch AGResidentialIPv4 IPv63
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv63
AS29632Netassist International EOODUnclassifiedIPv62
AS293ESnetUnclassifiedIPv42
AS20766Association "Gitoyen"UnclassifiedIPv42
AS34927iFog GmbHHostingIPv42
AS34019Hivane AssociationUnclassifiedIPv4 IPv62
AS213241TECHIT.BE SRLResidentialIPv61

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 AS29505 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS215275Stadtwerke Luebeck Digital GmbHUnclassifiedIPv462

Adjacency

Adjacent networks

42 shown

Every AS seen directly next to AS29505 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS33891Core-Backbone GmbHHostingIPv4 IPv672
AS215275Stadtwerke Luebeck Digital GmbHUnclassifiedIPv462
AS174Cogent Communications, LLCTransitIPv4 IPv656
AS6939Hurricane Electric LLCTransitIPv4 IPv636
AS8220COLT Technology Services Group LimitedHostingIPv4 IPv627
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv614
AS50673Serverius Holding B.V.UnclassifiedIPv46
AS24482SG.GSHostingIPv4 IPv65
AS212024Marc SchmittUnclassifiedIPv4 IPv65
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv65
AS34800Securebit AGUnclassifiedIPv44
AS20485Joint Stock Company TransTeleComUnclassifiedIPv44
AS37100SEACOM LimitedUnclassifiedIPv44
AS12779IT.Gate S.p.A.UnclassifiedIPv44
AS12552GlobalConnect ABUnclassifiedIPv44
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv64
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv64
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv64
AS34927iFog GmbHHostingIPv43
AS1836green.ch AGResidentialIPv4 IPv63
AS48185team.blue NVUnclassifiedIPv4 IPv63
AS34019Hivane AssociationUnclassifiedIPv4 IPv63
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv63
AS293ESnetUnclassifiedIPv42
AS20766Association "Gitoyen"UnclassifiedIPv42
AS29632Netassist International EOODUnclassifiedIPv62
AS213241TECHIT.BE SRLResidentialIPv61

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 AS29505, 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 5 exchanges across 2 countries and 1 region.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.194.2281,073
AMS-IX AmsterdamAmsterdam, Netherlands80.249.214.241894
DE-CIX HamburgHamburg, Germany185.1.210.14195
Megaport Frankfurt IXFrankfurt, Germany62.69.146.93114
Megaport Hamburg IXHamburg, Germany193.42.155.2362

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.