asn.dev

Observed topology

AS4270 Red de Interconexion Universitaria

Education ARIN

Upstreams 3 carry this network
Downstreams 19 this network carries
Adjacent (IPv4) 20
Adjacent (IPv6) 14
Upstream graph Who carries AS4270, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS4270 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS4270: 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
AS10834Telefonica de ArgentinaUnclassifiedIPv43,113
AS7303Telecom Argentina S.A.MobileIPv632
AS6939Hurricane Electric LLCTransitIPv412

Transit

Downstream networks

All 19

Networks for which AS4270 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS262156Universidad Nacional de RosarioUnclassifiedIPv6512
AS52314Universidad Nacional del Noroeste de Buenos Aires (UNNOBA)UnclassifiedIPv4 IPv6499
AS263235Universidad Nacional de MisionesUnclassifiedIPv4 IPv6143
AS270033Universidad Nacional Arturo JauretcheUnclassifiedIPv4 IPv6114
AS52424Universidad Nacional de Entre RiosEducationIPv4 IPv6107
AS61476Universidad Nacional de La PampaUnclassifiedIPv4 IPv6106
AS263186Universidad Nacional de General SarmientoUnclassifiedIPv4 IPv6106
AS61496UNIVERSIDAD NACIONAL DEL CENTRO DE LA PROVINCIA DE BUENOS AIRESUnclassifiedIPv4 IPv667
AS27875Universidad Nacional de CuyoUnclassifiedIPv4 IPv654
AS27770Universidad Nacional de Rio CuartoEducationIPv4 IPv647

All 19 downstreams →

Adjacency

Adjacent networks

All 22

Every AS seen directly next to AS4270 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS10834Telefonica de ArgentinaUnclassifiedIPv43,113
AS7303Telecom Argentina S.A.MobileIPv4 IPv61,656
AS262156Universidad Nacional de RosarioUnclassifiedIPv6512
AS52314Universidad Nacional del Noroeste de Buenos Aires (UNNOBA)UnclassifiedIPv4 IPv6499
AS6939Hurricane Electric LLCTransitIPv4 IPv6328
AS263235Universidad Nacional de MisionesUnclassifiedIPv4 IPv6143
AS270033Universidad Nacional Arturo JauretcheUnclassifiedIPv4 IPv6114
AS52424Universidad Nacional de Entre RiosEducationIPv4 IPv6107
AS61476Universidad Nacional de La PampaUnclassifiedIPv4 IPv6106
AS263186Universidad Nacional de General SarmientoUnclassifiedIPv4 IPv6106

All 22 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.