asn.dev

Observed topology

AS61745 AS61745 - NBS TELECOM

Unclassified APNIC NSP

Upstreams 10 carry this network
Downstreams 30 this network carries
Adjacent (IPv4) 35
Adjacent (IPv6) 34
Upstream graph Who carries AS61745, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS61745 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS61745: 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
AS7738V talUnclassifiedIPv4137
AS10429TELEFONICA BRASIL S.AResidentialIPv4 IPv6105
AS8167V talResidentialIPv4 IPv657
AS1031PEER 1031 LLCUnclassifiedIPv4 IPv627
AS4230CLARO S.A.ResidentialIPv424
AS6939Hurricane Electric LLCTransitIPv616
AS3303Swisscom (Schweiz) AGResidentialIPv412
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv67
AS24482SG.GSHostingIPv4 IPv67
AS33891Core-Backbone GmbHHostingIPv46

Transit

Downstream networks

All 30

Networks for which AS61745 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS273309UNI TELECOM LTDAUnclassifiedIPv4 IPv62,259
AS266572WORLDNET TELECOMUNICACOESUnclassifiedIPv4 IPv6706
AS269481PROINFO-COMERCIO E SERVICOS P/INFORMATICA LTDA-MEUnclassifiedIPv4 IPv6519
AS264166TURBO NET TELECOM LTDAUnclassifiedIPv4 IPv6316
AS270406F.A.A PROVEDOR LTDA - MEUnclassifiedIPv4 IPv6277
AS266535PELIKAN NET LTDA-MEUnclassifiedIPv4 IPv6267
AS273782S & M Nacional Telecom LtdaUnclassifiedIPv4 IPv6215
AS272278MVW TelecomunicacoesUnclassifiedIPv4 IPv6211
AS262663METROFLEX TELECOMUNICACOES LTDAUnclassifiedIPv4183
AS268750M. L. J. DANTAS - MEUnclassifiedIPv4 IPv6146

All 30 downstreams →

Adjacency

Adjacent networks

All 41

Every AS seen directly next to AS61745 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS273309UNI TELECOM LTDAUnclassifiedIPv4 IPv62,938
AS7738V talUnclassifiedIPv41,883
AS4230CLARO S.A.ResidentialIPv41,324
AS6939Hurricane Electric LLCTransitIPv4 IPv61,229
AS8167V talResidentialIPv4 IPv61,141
AS10429TELEFONICA BRASIL S.AResidentialIPv4 IPv6832
AS266572WORLDNET TELECOMUNICACOESUnclassifiedIPv4 IPv6706
AS1031PEER 1031 LLCUnclassifiedIPv4 IPv6704
AS269180VIPNET ConexaoResidentialIPv4 IPv6601
AS269481PROINFO-COMERCIO E SERVICOS P/INFORMATICA LTDA-MEUnclassifiedIPv4 IPv6519

All 41 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.