asn.dev

Observed topology

AS266400 AS266400 - Ferenz Networks

Unclassified LACNIC NSP

Upstreams 6 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 10
Upstream graph Who carries AS266400, and who carries them, drawn as a map up to the transit-free core. 9 exchanges Where AS266400 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS266400: 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 IPv61,693
AS6939Hurricane Electric LLCTransitIPv4 IPv6431
AS16735ALGAR TELECOM S/AUnclassifiedIPv4 IPv675
AS24482SG.GSHostingIPv4 IPv644
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv644
AS61624INFNOC TECNOLOGIA LTDAUnclassifiedIPv42

Transit

Downstream networks

inferred

Networks for which AS266400 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS269412Oeste TelecomUnclassifiedIPv4 IPv6679
AS275761HOSTEG HOSPEDAGEM E SERVIDORES LTDAUnclassifiedIPv4 IPv6181
AS273508Visao Datacenter LTDAHostingIPv4 IPv691
AS264254AZAN SERVICOS DE INTERNETHostingIPv460
AS275745Central Tech Telecom LtdaUnclassifiedIPv61

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS266400 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,580
AS269412Oeste TelecomUnclassifiedIPv4 IPv6679
AS275761HOSTEG HOSPEDAGEM E SERVIDORES LTDAUnclassifiedIPv4 IPv6578
AS6939Hurricane Electric LLCTransitIPv4 IPv6575
AS61624INFNOC TECNOLOGIA LTDAUnclassifiedIPv4 IPv6315
AS16735ALGAR TELECOM S/AUnclassifiedIPv4 IPv6120
AS273508Visao Datacenter LTDAHostingIPv4 IPv691
AS264254AZAN SERVICOS DE INTERNETHostingIPv460
AS24482SG.GSHostingIPv4 IPv655
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv653

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M 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.