asn.dev

Observed topology

AS61900 AS61900 - Mais Internet LTDA EPP

Residential RIPE Cable/DSL/ISP

Upstreams 5 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 10
Upstream graph Who carries AS61900, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS61900 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS61900: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv6237
AS28283Adylnet TelecomResidentialIPv4 IPv6234
AS13786Seabras 1 USA, LLCUnclassifiedIPv4 IPv681
AS53062GGNET TELECOMUNICACOES LTDAUnclassifiedIPv653
AS24482SG.GSHostingIPv4 IPv69

Transit

Downstream networks

inferred

Networks for which AS61900 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS2644844U NETWORKUnclassifiedIPv4 IPv6636
AS271129Rt Comunicacoes LTDAUnclassifiedIPv4 IPv6339
AS262411Force Telecom LtdaResidentialIPv4 IPv6134
AS271356Telecom DigitalUnclassifiedIPv4 IPv668
AS28293InterCorp Provedor de Internet LTDA MEResidentialIPv4 IPv643

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS61900 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,056
AS2644844U NETWORKUnclassifiedIPv4 IPv6636
AS13786Seabras 1 USA, LLCUnclassifiedIPv4 IPv6360
AS271129Rt Comunicacoes LTDAUnclassifiedIPv4 IPv6339
AS53062GGNET TELECOMUNICACOES LTDAUnclassifiedIPv4 IPv6248
AS28283Adylnet TelecomResidentialIPv4 IPv6234
AS28293InterCorp Provedor de Internet LTDA MEResidentialIPv4 IPv6138
AS262411Force Telecom LtdaResidentialIPv4 IPv6134
AS271356Telecom DigitalUnclassifiedIPv4 IPv668
AS24482SG.GSHostingIPv4 IPv631

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.