asn.dev

Observed topology

AS61745 NBS TELECOM

Upstreams 10 carry this network
Downstreams 29 this network carries
Adjacent (IPv4) 33
Adjacent (IPv6) 32

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
AS8167V talResidentialIPv4 IPv6205
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv690
AS4230CLARO S.A.ResidentialIPv4 IPv644
AS33891Core-Backbone GmbHHostingIPv418
AS6939Hurricane Electric LLCTransitIPv615
AS1031PEER 1031 LLCUnclassifiedIPv4 IPv615
AS24482SG.GSHostingIPv4 IPv67
AS3303Swisscom (Schweiz) AGResidentialIPv46
AS57463NetIX Communications JSCUnclassifiedIPv46
AS10429TELEFONICA BRASIL S.AResidentialIPv46

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.

Transit

Downstream networks

inferred

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 IPv62,414
AS266572WORLDNET TELECOMUNICACOESUnclassifiedIPv4 IPv6747
AS269481PROINFO-COMERCIO E SERVICOS P/INFORMATICA LTDA-MEUnclassifiedIPv4 IPv6538
AS264166TURBO NET TELECOM LTDAUnclassifiedIPv4 IPv6349
AS270406F.A.A PROVEDOR LTDA - MEUnclassifiedIPv4 IPv6339
AS273782S & M Nacional Telecom LtdaUnclassifiedIPv4 IPv6254
AS272278MVW TelecomunicacoesUnclassifiedIPv4 IPv6223
AS268750M. L. J. DANTAS - MEUnclassifiedIPv4 IPv6198
AS262663METROFLEX TELECOMUNICACOES LTDAUnclassifiedIPv4189
AS263947VirtualSpace TelecomUnclassifiedIPv4 IPv6164
AS266535PELIKAN NET LTDA-MEUnclassifiedIPv4144
AS263474VerdeNET Fibra OpticaUnclassifiedIPv4 IPv6141
AS269180VIPNET ConexaoResidentialIPv4 IPv6108
AS273337IMPACTO NET TELECOM EIRELIUnclassifiedIPv4 IPv698
AS274340Globo Net Telecomunicacoes LTDAUnclassifiedIPv4 IPv697
AS52540H&F SOLUCOES TECNOLOGICAS LTDAUnclassifiedIPv4 IPv697
AS264019Tribunal de Justica do Estado de RondoniaUnclassifiedIPv4 IPv697
AS269069ADRIANO LENZ COMERCIO DE PRODUTOS INFORMATICA MEUnclassifiedIPv4 IPv697
AS268277NARI EQUIPAMENTOS DE COMUNICACAOUnclassifiedIPv4 IPv696
AS265307PLANETY INTERNET SERVICOS E COMUNICACOES LTDA - MEUnclassifiedIPv463
AS274372CREDISIS - CENTRAL DE COOPERATIVAS DE CREDITO LTDAUnclassifiedIPv662
AS271017AMAZONFIBER SERVICOS DE COMUNICACAO LTDAUnclassifiedIPv438
AS271638Cronos TelecomUnclassifiedIPv635
AS274540SUP. ESTADUAL DE TECNOLOGIA DA INFORMACAO E COMUnclassifiedIPv635
AS274547PREFEITURA DE PORTO VELHOUnclassifiedIPv634
AS274503BULLETI NET SERVICOS DE TELECOMUNICACOES LTDAUnclassifiedIPv634
AS271323CONNECT TELECOM LTDAUnclassifiedIPv620
AS272190I9 COMERCIO E SERVICOS DE TELECOMUNICACAOUnclassifiedIPv49
AS273365volt telecom servico de comunicacao e multimidiaUnclassifiedIPv66

Adjacency

Adjacent networks

65 shown

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

ASNetworkTypeFamiliesPaths seen
AS8167V talResidentialIPv4 IPv63,248
AS273309UNI TELECOM LTDAUnclassifiedIPv4 IPv63,186
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv61,875
AS6939Hurricane Electric LLCTransitIPv61,363
AS4230CLARO S.A.ResidentialIPv4 IPv61,136
AS266572WORLDNET TELECOMUNICACOESUnclassifiedIPv4 IPv6747
AS269180VIPNET ConexaoResidentialIPv4 IPv6598
AS269481PROINFO-COMERCIO E SERVICOS P/INFORMATICA LTDA-MEUnclassifiedIPv4 IPv6538
AS1031PEER 1031 LLCUnclassifiedIPv4 IPv6400
AS272278MVW TelecomunicacoesUnclassifiedIPv4 IPv6350
AS264166TURBO NET TELECOM LTDAUnclassifiedIPv4 IPv6349
AS270406F.A.A PROVEDOR LTDA - MEUnclassifiedIPv4 IPv6339
AS33891Core-Backbone GmbHHostingIPv4 IPv6299
AS273782S & M Nacional Telecom LtdaUnclassifiedIPv4 IPv6254
AS263474VerdeNET Fibra OpticaUnclassifiedIPv4 IPv6230
AS262663METROFLEX TELECOMUNICACOES LTDAUnclassifiedIPv4 IPv6229
AS268750M. L. J. DANTAS - MEUnclassifiedIPv4 IPv6198
AS24482SG.GSHostingIPv4 IPv6166
AS263947VirtualSpace TelecomUnclassifiedIPv4 IPv6164
AS266535PELIKAN NET LTDA-MEUnclassifiedIPv4144
AS3303Swisscom (Schweiz) AGResidentialIPv4116
AS273337IMPACTO NET TELECOM EIRELIUnclassifiedIPv4 IPv698
AS269069ADRIANO LENZ COMERCIO DE PRODUTOS INFORMATICA MEUnclassifiedIPv4 IPv697
AS52540H&F SOLUCOES TECNOLOGICAS LTDAUnclassifiedIPv4 IPv697
AS274340Globo Net Telecomunicacoes LTDAUnclassifiedIPv4 IPv697
AS264019Tribunal de Justica do Estado de RondoniaUnclassifiedIPv4 IPv697
AS268277NARI EQUIPAMENTOS DE COMUNICACAOUnclassifiedIPv4 IPv696
AS57463NetIX Communications JSCUnclassifiedIPv479
AS10429TELEFONICA BRASIL S.AResidentialIPv475
AS272190I9 COMERCIO E SERVICOS DE TELECOMUNICACAOUnclassifiedIPv471
AS265307PLANETY INTERNET SERVICOS E COMUNICACOES LTDA - MEUnclassifiedIPv463
AS274372CREDISIS - CENTRAL DE COOPERATIVAS DE CREDITO LTDAUnclassifiedIPv662
AS273365volt telecom servico de comunicacao e multimidiaUnclassifiedIPv4 IPv651
AS271017AMAZONFIBER SERVICOS DE COMUNICACAO LTDAUnclassifiedIPv438
AS274540SUP. ESTADUAL DE TECNOLOGIA DA INFORMACAO E COMUnclassifiedIPv635
AS271638Cronos TelecomUnclassifiedIPv635
AS274547PREFEITURA DE PORTO VELHOUnclassifiedIPv634
AS274503BULLETI NET SERVICOS DE TELECOMUNICACOES LTDAUnclassifiedIPv634
AS271323CONNECT TELECOM LTDAUnclassifiedIPv620
AS999CORIX NETWORKSUnclassifiedIPv46

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.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS61745, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 6 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.209.372,690
IX.br (PTT.br) BrasíliaBrasília, Brazil45.184.144.183279
IX.br (PTT.br) GoiâniaGoiânia, Brazil200.192.111.1373
IX.br (PTT.br) CuiabáCuiabá, Brazil187.16.203.2959
IX.br (PTT.br) Porto VelhoPorto Velho, Brazil187.16.200.424
IX.br (PTT.br) Rio BrancoRio Branco, Brazil200.219.143.712

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.