asn.dev

Observed topology

AS8422 NETCOLOGNE NetCologne Gesellschaft fur Telekommunikation mbH

Residential RIPE

Upstreams 30 carry this network
Downstreams 35 this network carries
Adjacent (IPv4) 61
Adjacent (IPv6) 43
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 30

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 IPv6456
AS1299Arelion Sweden ABTransitIPv4 IPv6455
AS3356Level 3 Parent, LLCTransitIPv4436
AS174Cogent Communications, LLCTransitIPv4 IPv6132
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6124
AS9002RETN LimitedUnclassifiedIPv4 IPv6100
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv650
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv650
AS24482SG.GSHostingIPv4 IPv650
AS42708Glesys Sweden ABUnclassifiedIPv4 IPv650

All 30 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 IPv6694
AS12581tops.net GmbH & Co. KGUnclassifiedIPv4 IPv6300
AS60209Informationsverarbeitung Leverkusen GmbHUnclassifiedIPv4226
AS51733BWI GmbHUnclassifiedIPv4205
AS24861SITS Deutschland GmbHUnclassifiedIPv4 IPv6183
AS203621Kramer & Crew GmbH & Co. KGUnclassifiedIPv4180
AS206211DEUTZ AGUnclassifiedIPv4 IPv6179
AS48823Hosting.de GmbHUnclassifiedIPv4 IPv6163
AS60997Stadt KoelnUnclassifiedIPv4 IPv6150
AS202577Kommunale Datenverarbeitungszentrale Rhein-Erft-RurUnclassifiedIPv4 IPv6150

All 35 downstreams →

Adjacency

Adjacent networks

All 73

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

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv61,480
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,181
AS33984Surfplanet GmbHHostingIPv4 IPv61,124
AS1299Arelion Sweden ABTransitIPv4 IPv61,002
AS48823Hosting.de GmbHUnclassifiedIPv4 IPv6510
AS174Cogent Communications, LLCTransitIPv4 IPv6380
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6326
AS9002RETN LimitedUnclassifiedIPv4 IPv6301
AS12581tops.net GmbH & Co. KGUnclassifiedIPv4 IPv6300
AS60209Informationsverarbeitung Leverkusen GmbHUnclassifiedIPv4226

All 73 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.