asn.dev

Observed topology

AS53237 TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS

Unclassified LACNIC

Upstreams 10 carry this network
Downstreams 16 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 16
Upstream graph Who carries AS53237, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS53237 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS53237: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6454
AS28598DB3 SERVICOS DE TELECOMUNICACOES S.AResidentialIPv4302
AS267613ELETRONET S.A.UnclassifiedIPv4 IPv6302
AS28178Networld Provedor e Servicos de Internet LtdaUnclassifiedIPv4 IPv6290
AS28126BRISANET SERVICOS DE TELECOMUNICACOES S.AResidentialIPv4 IPv6170
AS61832DB3 SERVICOS DE TELECOMUNICACOES S.AUnclassifiedIPv673
AS52468UFINET PANAMA S.A.UnclassifiedIPv460
AS24482SG.GSHostingIPv4 IPv632
AS35280F5 Networks SARLHostingIPv4 IPv630
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv626

Transit

Downstream networks

All 16

Networks for which AS53237 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS40311ViaSat,Inc.UnclassifiedIPv4539
AS22055Banco Central do BrasilUnclassifiedIPv4180
AS61807Ministerio da EducacaoUnclassifiedIPv4180
AS270740EASYTECH TECNOLOGIA DA INFORMACAO LTDAUnclassifiedIPv4 IPv6149
AS26218EMP. DE TEC. E INF. DA PREVIDENCIA - DATAPREVUnclassifiedIPv4 IPv6140
AS52956Speed Travel Comunicacao Multimidia Ltda - MEResidentialIPv4 IPv6108
AS28616Emp. de Informatica e Informacao do Mun. BH/SAUnclassifiedIPv4 IPv695
AS264022REDE CONEXAONETUnclassifiedIPv4 IPv688
AS268473LinkSul internetUnclassifiedIPv460
AS263056INDNET TELECOMUNICACOES LTDAUnclassifiedIPv444

All 16 downstreams →

Adjacency

Adjacent networks

All 26

Every AS seen directly next to AS53237 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS267613ELETRONET S.A.UnclassifiedIPv4 IPv61,163
AS6939Hurricane Electric LLCTransitIPv4 IPv6880
AS40311ViaSat,Inc.UnclassifiedIPv4598
AS28598DB3 SERVICOS DE TELECOMUNICACOES S.AResidentialIPv4 IPv6542
AS28126BRISANET SERVICOS DE TELECOMUNICACOES S.AResidentialIPv4 IPv6432
AS264022REDE CONEXAONETUnclassifiedIPv4 IPv6362
AS28178Networld Provedor e Servicos de Internet LtdaUnclassifiedIPv4 IPv6290
AS61832DB3 SERVICOS DE TELECOMUNICACOES S.AUnclassifiedIPv4 IPv6219
AS22055Banco Central do BrasilUnclassifiedIPv4180
AS61807Ministerio da EducacaoUnclassifiedIPv4180

All 26 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M 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.