asn.dev

Observed topology

AS28370 AS28370 - GUIFAMI Informatica Ltda.

Unclassified ARIN

Upstreams 7 carry this network
Downstreams 16 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 18
Upstream graph Who carries AS28370, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS28370 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS28370: 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 IPv61,127
AS6939Hurricane Electric LLCTransitIPv4 IPv6307
AS22356Durand do Brasil LtdaUnclassifiedIPv450
AS24482SG.GSHostingIPv4 IPv627
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv627
AS268624Gamers Club LtdaUnclassifiedIPv425
AS271253LINK BRASIL TELECOMUNICACOES LTDAUnclassifiedIPv61

Transit

Downstream networks

All 16

Networks for which AS28370 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS264426VM Provedora de Internet Ltda MeResidentialIPv4761
AS267608Micheleto Internet EireliUnclassifiedIPv4 IPv6668
AS53079MD Brasil - Tecnologia da Informacao LtdaUnclassifiedIPv4600
AS263535REDE GLOBAL TECNOLOGIA LTDA MEUnclassifiedIPv4 IPv6554
AS263060Atilio Marcos Marcari e Cia Ltda MeUnclassifiedIPv4 IPv6451
AS268198StacaoNET TelecomunicacoesUnclassifiedIPv4 IPv6451
AS267556Explorer Telecom Ltda - MEUnclassifiedIPv4 IPv6362
AS263963Goldweb Barretos servicos de Telecomunicacoes LtdaUnclassifiedIPv4132
AS28657MD Brasil - Tecnologia da Informacao LtdaUnclassifiedIPv4 IPv6124
AS273514AMPLE SOLUCOES TECNOLOGICAS LTDAUnclassifiedIPv4 IPv6101

All 16 downstreams →

Adjacency

Adjacent networks

All 24

Every AS seen directly next to AS28370 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv63,601
AS6939Hurricane Electric LLCTransitIPv4 IPv61,421
AS264426VM Provedora de Internet Ltda MeResidentialIPv4761
AS263535REDE GLOBAL TECNOLOGIA LTDA MEUnclassifiedIPv4 IPv6755
AS267608Micheleto Internet EireliUnclassifiedIPv4 IPv6668
AS53079MD Brasil - Tecnologia da Informacao LtdaUnclassifiedIPv4600
AS268624Gamers Club LtdaUnclassifiedIPv4 IPv6571
AS263060Atilio Marcos Marcari e Cia Ltda MeUnclassifiedIPv4 IPv6451
AS268198StacaoNET TelecomunicacoesUnclassifiedIPv4 IPv6451
AS271253LINK BRASIL TELECOMUNICACOES LTDAUnclassifiedIPv4 IPv6385

All 24 adjacent →

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.