asn.dev

Observed topology

AS273309 AS273309 - UNI TELECOM LTDA

Unclassified ARIN Cable/DSL/ISP

Upstreams 4 carry this network
Downstreams 7 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 4
Upstream graph Who carries AS273309, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS273309 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS273309: 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
AS61745NBS TELECOMUnclassifiedIPv4 IPv61,998
AS7738V talUnclassifiedIPv4759
AS264137DUX TELECOM LTDAUnclassifiedIPv4 IPv6556
AS8167V talResidentialIPv4 IPv6513

Transit

Downstream networks

inferred

Networks for which AS273309 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS271127infonet comercio de informatica ltda meUnclassifiedIPv4 IPv6528
AS264137DUX TELECOM LTDAUnclassifiedIPv4 IPv6200
AS273337IMPACTO NET TELECOM EIRELIUnclassifiedIPv463
AS269567AS269567 - OP DOS SANTOS & CIA LTDAUnclassifiedIPv43
AS270554M. M. SERVICOS DE INFORMATICA LTDA MEUnclassifiedIPv43
AS265430JDA Net - SKYNET TeleinformaticaUnclassifiedIPv42
AS269664MAIS TELECOMUNICACOES LTDAUnclassifiedIPv42

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS273309 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS61745NBS TELECOMUnclassifiedIPv4 IPv62,600
AS7738V talUnclassifiedIPv4865
AS264137DUX TELECOM LTDAUnclassifiedIPv4 IPv6756
AS8167V talResidentialIPv4 IPv6607
AS271127infonet comercio de informatica ltda meUnclassifiedIPv4 IPv6528
AS273337IMPACTO NET TELECOM EIRELIUnclassifiedIPv463
AS269567AS269567 - OP DOS SANTOS & CIA LTDAUnclassifiedIPv43
AS269664MAIS TELECOMUNICACOES LTDAUnclassifiedIPv43
AS270554M. M. SERVICOS DE INFORMATICA LTDA MEUnclassifiedIPv43
AS265430JDA Net - SKYNET TeleinformaticaUnclassifiedIPv42

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.46M 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.