asn.dev

Observed topology

AS267201 Fiber One Telecomunicacoes EIRELI

Unclassified RIPE

Upstreams 7 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 6
Upstream graph Who carries AS267201, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS267201 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS267201: 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
AS269416SEMEAR TELECOM EIRELIResidentialIPv4180
AS263047CORP BR TELECOMUNICACOES LTDA - LINK FULLUnclassifiedIPv459
AS52468UFINET PANAMA S.A.UnclassifiedIPv458
AS24482SG.GSHostingIPv4 IPv62
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv62
AS35280F5 Networks SARLHostingIPv61
AS274666unnamedUnclassifiedIPv41

Transit

Downstream networks

inferred

Networks for which AS267201 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS268956ESPECIALNET TELECOM LTDAUnclassifiedIPv4118
AS263928JBMNET TELECOMUnclassifiedIPv4 IPv692
AS266338HDL SOLUCOES EM TECNOLOGIA LTDAUnclassifiedIPv4 IPv650
AS268055LOKAL ONLINE TELECOM SERVICO DE TELECOMUNICACAO EIUnclassifiedIPv443

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS267201 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS263047CORP BR TELECOMUNICACOES LTDA - LINK FULLUnclassifiedIPv4 IPv6244
AS269416SEMEAR TELECOM EIRELIResidentialIPv4180
AS52468UFINET PANAMA S.A.UnclassifiedIPv4174
AS268956ESPECIALNET TELECOM LTDAUnclassifiedIPv4118
AS263928JBMNET TELECOMUnclassifiedIPv4 IPv692
AS266338HDL SOLUCOES EM TECNOLOGIA LTDAUnclassifiedIPv4 IPv650
AS268055LOKAL ONLINE TELECOM SERVICO DE TELECOMUNICACAO EIUnclassifiedIPv443
AS24482SG.GSHostingIPv4 IPv64
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv62
AS35280F5 Networks SARLHostingIPv61

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M 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.