Observed topology

AS52409 AS52409 - COSEIDI S.A.

Residential LACNIC Cable/DSL/ISP

Upstreams 3 carry this network

Downstreams 8 this network carries

Adjacent (IPv4) 11

Adjacent (IPv6) 4

Upstream graph Who carries AS52409, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS52409 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS52409: 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.

AS	Network	Type	Families	Paths seen
AS7195	EDGEUNO S.A.S	Unclassified	IPv4	50
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	27
AS263194	Advantun SRL	Residential	IPv6	16

Transit

Downstream networks

inferred

Networks for which AS52409 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS269943	LUQUE FEDERICO GASTON (NEWFIX)	Unclassified	IPv4	116
AS263769	ByteSolution S.A. (WispSolution Internet)	Unclassified	IPv4	93
AS265639	COBWEB CONECTION SRL (INTER-YA)	Unclassified	IPv4 IPv6	92
AS266829	MAGALAJO S.A.	Residential	IPv4	60
AS274061	PAREDES YOEL TOMAS (FIBERGO)	Unclassified	IPv4	60
AS61456	COOPERATIVA TRES LIMITES LTDA	Unclassified	IPv4	59
AS28065	CITARELLA S.A.	Residential	IPv4	11
AS272903	V.C.C.B. SRL	Unclassified	IPv4	2

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS52409 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS7195	EDGEUNO S.A.S	Unclassified	IPv4 IPv6	490
AS263769	ByteSolution S.A. (WispSolution Internet)	Unclassified	IPv4	139
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	116
AS269943	LUQUE FEDERICO GASTON (NEWFIX)	Unclassified	IPv4	116
AS265639	COBWEB CONECTION SRL (INTER-YA)	Unclassified	IPv4 IPv6	92
AS266829	MAGALAJO S.A.	Residential	IPv4	60
AS274061	PAREDES YOEL TOMAS (FIBERGO)	Unclassified	IPv4	60
AS61456	COOPERATIVA TRES LIMITES LTDA	Unclassified	IPv4	59
AS263194	Advantun SRL	Residential	IPv4 IPv6	26
AS28065	CITARELLA S.A.	Residential	IPv4	11

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.