asn.dev

Observed topology

AS266475 AS266475 - SEM FRONTEIRAS TELECOMUNICACOES LTDA

Unclassified ARIN NSP

Upstreams 8 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 11
Adjacent (IPv6) 8
Upstream graph Who carries AS266475, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS266475 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS266475: 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
AS4230CLARO S.A.ResidentialIPv4 IPv61,074
AS271253LINK BRASIL TELECOMUNICACOES LTDAUnclassifiedIPv4484
AS6939Hurricane Electric LLCTransitIPv4 IPv6316
AS264275ROLIM NET TECNOLOGIA LTDAUnclassifiedIPv446
AS1031PEER 1031 LLCUnclassifiedIPv439
AS24482SG.GSHostingIPv4 IPv630
AS52468UFINET PANAMA S.A.UnclassifiedIPv42
AS37721Virtual Technologies & SolutionsResidentialIPv41

Transit

Downstream networks

inferred

Networks for which AS266475 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS267432D. S. da CostaUnclassifiedIPv4 IPv6465
AS267997DS TELECOMUnclassifiedIPv4 IPv6438
AS271555SDMNET INFORMATICA LTDA - MEUnclassifiedIPv4 IPv6386
AS274840A. S. DANTASUnclassifiedIPv632

Adjacency

Adjacent networks

All 12

Every AS seen directly next to AS266475 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS4230CLARO S.A.ResidentialIPv4 IPv61,932
AS271253LINK BRASIL TELECOMUNICACOES LTDAUnclassifiedIPv4 IPv6927
AS267432D. S. da CostaUnclassifiedIPv4 IPv6465
AS267997DS TELECOMUnclassifiedIPv4 IPv6438
AS271555SDMNET INFORMATICA LTDA - MEUnclassifiedIPv4 IPv6386
AS6939Hurricane Electric LLCTransitIPv4 IPv6316
AS1031PEER 1031 LLCUnclassifiedIPv459
AS264275ROLIM NET TECNOLOGIA LTDAUnclassifiedIPv446
AS274840A. S. DANTASUnclassifiedIPv632
AS24482SG.GSHostingIPv4 IPv630

All 12 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.