asn.dev

Observed topology

AS61851 AS61851 - Garra Fibra

Unclassified LACNIC

Upstreams 7 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 14
Adjacent (IPv6) 12
Upstream graph Who carries AS61851, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS61851 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS61851: 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
AS270735COMPUTIZE NETWORK TELECOMUNICACOES LTDAHostingIPv4 IPv6520
AS13786Seabras 1 USA, LLCUnclassifiedIPv464
AS1031PEER 1031 LLCUnclassifiedIPv4 IPv660
AS24482SG.GSHostingIPv4 IPv616
AS35280F5 Networks SARLHostingIPv4 IPv616
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv616
AS3303Swisscom (Schweiz) AGResidentialIPv48

Transit

Downstream networks

inferred

Networks for which AS61851 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS271603GIGANET TELECOMUnclassifiedIPv4 IPv6341
AS268813Freitas Sistema de Comunicacao Internet Eireli-MEUnclassifiedIPv4 IPv6322
AS270506G5 Rede de Telecomunicacoes Multimidia LtdaUnclassifiedIPv4 IPv6237
AS271504SYSTEC TELECOMUnclassifiedIPv4 IPv690
AS52801Apanet Servicos de Internet Ltda.UnclassifiedIPv4 IPv654

Adjacency

Adjacent networks

All 14

Every AS seen directly next to AS61851 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS270735COMPUTIZE NETWORK TELECOMUNICACOES LTDAHostingIPv4 IPv61,037
AS268813Freitas Sistema de Comunicacao Internet Eireli-MEUnclassifiedIPv4 IPv6355
AS271603GIGANET TELECOMUnclassifiedIPv4 IPv6341
AS13786Seabras 1 USA, LLCUnclassifiedIPv4 IPv6322
AS270506G5 Rede de Telecomunicacoes Multimidia LtdaUnclassifiedIPv4 IPv6237
AS1031PEER 1031 LLCUnclassifiedIPv4 IPv6192
AS6939Hurricane Electric LLCTransitIPv4 IPv6174
AS271504SYSTEC TELECOMUnclassifiedIPv4 IPv690
AS52801Apanet Servicos de Internet Ltda.UnclassifiedIPv4 IPv654
AS24482SG.GSHostingIPv4 IPv644

All 14 adjacent →

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.