asn.dev

Observed topology

AS29551 HGCOMP-ASN

Upstreams 15 carry this network
Downstreams 19 this network carries
Adjacent (IPv4) 34
Adjacent (IPv6) 18

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS29551: 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
AS3257GTT Communications Inc.TransitIPv4 IPv6596
AS1299Arelion Sweden ABTransitIPv4 IPv6341
AS9002RETN LimitedUnclassifiedIPv4 IPv6323
AS5405Inter.link GmbHUnclassifiedIPv4267
AS3320Deutsche Telekom AGMobileIPv4 IPv6191
AS13101TNG Stadtnetz GmbHResidentialIPv4130
AS6939Hurricane Electric LLCTransitIPv4105
AS31025GHOSTnet GmbHHostingIPv4 IPv651
AS212508Lowhosting services of Davide GennariUnclassifiedIPv417
AS57463NetIX Communications JSCUnclassifiedIPv417
AS34800Securebit AGUnclassifiedIPv417
AS202365Omer GOLGELIUnclassifiedIPv417
AS24482SG.GSHostingIPv417
AS57821Nonattached Network e.V.UnclassifiedIPv417
AS12586GHOSTnet GmbHHostingIPv4 IPv69

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 AS29551 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS35042Layer7 Networks GmbHUnclassifiedIPv4 IPv6949
AS35684SHC Netzwerktechnik GmbHUnclassifiedIPv4 IPv6664
AS48344Sven WefelsUnclassifiedIPv4 IPv6542
AS201155embeDD GmbHUnclassifiedIPv4 IPv6396
AS24603Ulf KieberUnclassifiedIPv4 IPv6326
AS202701Michael KloosUnclassifiedIPv4 IPv6196
AS29471WebJanssen ISP ltd & Co KGUnclassifiedIPv4192
AS35062Teamnet GmbHUnclassifiedIPv4 IPv6106
AS210711Planet Technologies UGUnclassifiedIPv4 IPv696
AS24632Markus RosignolUnclassifiedIPv493
AS214628WestfalenWIND IT GmbH & Co KGUnclassifiedIPv4 IPv693
AS64475Freifunk Frankfurt am Main e.V.UnclassifiedIPv4 IPv690
AS62354Aixit GmbHUnclassifiedIPv464
AS34396Aixit GmbHUnclassifiedIPv464
AS44207CIC Creative Internet Consulting GmbHUnclassifiedIPv464
AS570895POINT AGUnclassifiedIPv463
AS34624Megaspace Internet Services GmbHHostingIPv4 IPv635
AS25220equada network GmbHHostingIPv4 IPv628
AS51795AXONIA GmbHUnclassifiedIPv426

Adjacency

Adjacent networks

52 shown

Every AS seen directly next to AS29551 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3257GTT Communications Inc.TransitIPv4 IPv61,534
AS1299Arelion Sweden ABTransitIPv4 IPv61,492
AS9002RETN LimitedUnclassifiedIPv4 IPv61,264
AS35042Layer7 Networks GmbHUnclassifiedIPv4 IPv6949
AS5405Inter.link GmbHUnclassifiedIPv4838
AS35684SHC Netzwerktechnik GmbHUnclassifiedIPv4 IPv6664
AS48344Sven WefelsUnclassifiedIPv4 IPv6542
AS201155embeDD GmbHUnclassifiedIPv4 IPv6396
AS202701Michael KloosUnclassifiedIPv4 IPv6390
AS6939Hurricane Electric LLCTransitIPv4344
AS3320Deutsche Telekom AGMobileIPv4 IPv6329
AS24603Ulf KieberUnclassifiedIPv4 IPv6326
AS29471WebJanssen ISP ltd & Co KGUnclassifiedIPv4192
AS13101TNG Stadtnetz GmbHResidentialIPv4148
AS35062Teamnet GmbHUnclassifiedIPv4 IPv6106
AS210711Planet Technologies UGUnclassifiedIPv4 IPv696
AS24632Markus RosignolUnclassifiedIPv493
AS214628WestfalenWIND IT GmbH & Co KGUnclassifiedIPv4 IPv693
AS64475Freifunk Frankfurt am Main e.V.UnclassifiedIPv4 IPv690
AS44207CIC Creative Internet Consulting GmbHUnclassifiedIPv464
AS34396Aixit GmbHUnclassifiedIPv464
AS62354Aixit GmbHUnclassifiedIPv464
AS12586GHOSTnet GmbHHostingIPv4 IPv664
AS570895POINT AGUnclassifiedIPv463
AS202365Omer GOLGELIUnclassifiedIPv463
AS57821Nonattached Network e.V.UnclassifiedIPv463
AS31025GHOSTnet GmbHHostingIPv4 IPv662
AS24482SG.GSHostingIPv455
AS57463NetIX Communications JSCUnclassifiedIPv455
AS212508Lowhosting services of Davide GennariUnclassifiedIPv453
AS34800Securebit AGUnclassifiedIPv447
AS34624Megaspace Internet Services GmbHHostingIPv4 IPv645
AS25220equada network GmbHHostingIPv4 IPv633
AS51795AXONIA GmbHUnclassifiedIPv426

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 AS29551, 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 1 exchange across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Berlin Commercial Internet ExchangeBerlin, Germany193.178.185.55152

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.