asn.dev

Observed topology

AS8422 NETCOLOGNE

Residential RIPE Cable/DSL/ISP

Upstreams 31 carry this network
Downstreams 35 this network carries
Adjacent (IPv4) 61
Adjacent (IPv6) 44
Upstream graph Who carries AS8422, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS8422 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 31

Networks observed carrying traffic for AS8422: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6469
AS1299Arelion Sweden ABTransitIPv4 IPv6443
AS3356Level 3 Parent, LLCTransitIPv4436
AS9002RETN LimitedUnclassifiedIPv4 IPv6137
AS174Cogent Communications, LLCTransitIPv4 IPv6132
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6124
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv650
AS24482SG.GSHostingIPv4 IPv650
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv650
AS42708Glesys ABUnclassifiedIPv4 IPv650

All 31 upstreams →

Transit

Downstream networks

All 35

Networks for which AS8422 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS33984Surfplanet GmbHHostingIPv4 IPv6710
AS12581tops.net GmbH & Co. KGUnclassifiedIPv4 IPv6311
AS51733BWI GmbHUnclassifiedIPv4267
AS60209Informationsverarbeitung Leverkusen GmbHUnclassifiedIPv4235
AS24861SITS Deutschland GmbHUnclassifiedIPv4 IPv6191
AS206211DEUTZ AGUnclassifiedIPv4 IPv6188
AS203621Kramer & Crew GmbH & Co. KGUnclassifiedIPv4180
AS48823Hosting.de GmbHUnclassifiedIPv4 IPv6167
AS60997Stadt KoelnUnclassifiedIPv4 IPv6155
AS202577Kommunale Datenverarbeitungszentrale Rhein-Erft-RurUnclassifiedIPv4 IPv6155

All 35 downstreams →

Adjacency

Adjacent networks

All 75

Every AS seen directly next to AS8422 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv61,491
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,189
AS33984Surfplanet GmbHHostingIPv4 IPv61,146
AS1299Arelion Sweden ABTransitIPv4 IPv6974
AS48823Hosting.de GmbHUnclassifiedIPv4 IPv6518
AS9002RETN LimitedUnclassifiedIPv4 IPv6407
AS174Cogent Communications, LLCTransitIPv4 IPv6389
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6323
AS12581tops.net GmbH & Co. KGUnclassifiedIPv4 IPv6311
AS51733BWI GmbHUnclassifiedIPv4267

All 75 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

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