asn.dev

Observed topology

AS43500 WBD-AS Warner Bros. Discovery

Hosting RIPE

Upstreams 11 carry this network
Downstreams 0 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 7
Upstream graph Who carries AS43500, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS43500 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 11

Networks observed carrying traffic for AS43500: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv6437
AS174Cogent Communications, LLCTransitIPv4 IPv6179
AS6939Hurricane Electric LLCTransitIPv4 IPv6106
AS24482SG.GSHostingIPv4 IPv610
AS9002RETN LimitedUnclassifiedIPv68
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv64
AS7575Australian Academic and Research Network (AARNet)EducationIPv42
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv62
AS17639Converge ICT Solutions Inc.UnclassifiedIPv42
AS33891Core-Backbone GmbHHostingIPv42

All 11 upstreams →

Transit

Downstream networks

inferred

Networks for which AS43500 was observed as the last hop before the origin, meaning it appears to provide them transit.

No downstream observed. This network does not appear to carry transit for anyone.

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS43500 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv6437
AS174Cogent Communications, LLCTransitIPv4 IPv6179
AS6939Hurricane Electric LLCTransitIPv4 IPv6106
AS24482SG.GSHostingIPv4 IPv610
AS9002RETN LimitedUnclassifiedIPv68
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv64
AS7575Australian Academic and Research Network (AARNet)EducationIPv42
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv62
AS17639Converge ICT Solutions Inc.UnclassifiedIPv42
AS33891Core-Backbone GmbHHostingIPv42

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.