asn.dev

Observed topology

AS61901 RMR Assessoria Tecnica em Teleinformatica LTDA-ME

Unclassified LACNIC

Upstreams 3 carry this network
Downstreams 2 this network carries
Adjacent (IPv4) 5
Adjacent (IPv6) 2
Upstream graph Who carries AS61901, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS61901 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS61901: 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
AS269337CONECWEB SERVICOS DE COMUNICACAO LTDAUnclassifiedIPv4 IPv6525
AS265080AD TELECOMUnclassifiedIPv4 IPv6157
AS28220Alares Cabo Servicos de Telecomunicacoes S.A.ResidentialIPv463

Transit

Downstream networks

inferred

Networks for which AS61901 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS267511JK NET SERVICOS MULTIMIDIA EIRELI - EPPUnclassifiedIPv4119
AS270940VeloxFibra TelecomUnclassifiedIPv469

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS61901 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS269337CONECWEB SERVICOS DE COMUNICACAO LTDAUnclassifiedIPv4 IPv6653
AS265080AD TELECOMUnclassifiedIPv4 IPv6183
AS267511JK NET SERVICOS MULTIMIDIA EIRELI - EPPUnclassifiedIPv4119
AS28220Alares Cabo Servicos de Telecomunicacoes S.A.ResidentialIPv497
AS270940VeloxFibra TelecomUnclassifiedIPv469

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-22 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.12M 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.