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Adjacent networks

AS21369 SEMA-UK-AS

Unclassified RIPE

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS21369 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS198949Radware LtdUnclassifiedIPv41,711
AS8220COLT Technology Services Group LimitedHostingIPv4528
AS2856British Telecommunications LimitedResidentialIPv4387
AS702Verizon BusinessUnclassifiedIPv472

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.

Derived from routing tables collected at 2026-10-18 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.