Observed topology

AS27790 AS27790 - Universidad Nacional de Cordoba

Unclassified ARIN

Upstreams 4 carry this network

Downstreams 1 this network carries

Adjacent (IPv4) 5

Adjacent (IPv6) 4

Upstream graph Who carries AS27790, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS27790 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS27790: 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
AS52444	Pogliotti & Pogliotti Construcciones S.A.	Residential	IPv4 IPv6	971
AS52361	ARSAT - Empresa Argentina de Soluciones Satelitales S.A.	Unclassified	IPv4 IPv6	55
AS52374	CABASE Camara Arg de Base de Datos y Serv en Linea	Unclassified	IPv4 IPv6	39
AS4270	Red de Interconexion Universitaria	Education	IPv4	15

Transit

Downstream networks

inferred

Networks for which AS27790 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS264607	ASOCIACION CIVIL ALTERMUNDI	Unclassified	IPv4 IPv6	213

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS27790 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS52444	Pogliotti & Pogliotti Construcciones S.A.	Residential	IPv4 IPv6	971
AS52361	ARSAT - Empresa Argentina de Soluciones Satelitales S.A.	Unclassified	IPv4 IPv6	268
AS264607	ASOCIACION CIVIL ALTERMUNDI	Unclassified	IPv4 IPv6	213
AS52374	CABASE Camara Arg de Base de Datos y Serv en Linea	Unclassified	IPv4 IPv6	39
AS4270	Red de Interconexion Universitaria	Education	IPv4	15

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.