Autonomous System
AS61745 · NBS TELECOM
Overview
AS61745 is announced on the Internet: RIPE RIS route collectors currently see 6 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 4,864 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 17 upstream neighbours (transit providers or peers) and 29 downstream neighbours (customers or networks it carries). Its most visible upstreams are CLARO S.A. (AS4230), Hurricane Electric LLC (AS6939), and V tal (AS7738). AS61745 was assigned by LACNIC, and its registration country is Brazil.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 9:48 PM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 186.219.240.1, the first address of 186.219.240.0/21. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.
Announced prefixes
IPv4 prefixes (6 prefixes)
| Prefix | Addresses |
|---|---|
| 131.72.152.0/22 | 1,024 |
| 186.219.240.0/21 | 2,048 |
| 186.219.248.0/22 | 1,024 |
| 186.219.252.0/23 | 512 |
| 186.219.252.0/24 | 256 |
| 186.219.254.0/24 | 256 |
IPv6 prefixes (1 prefix)
| Prefix |
|---|
| 2804:1bb8::/32 |
Neighbours
Upstreams (transit or peers) (17)
| AS | Network | Visibility |
|---|---|---|
| AS4230 | CLARO S.A. | 5,186 |
| AS6939 | Hurricane Electric LLC | 2,668 |
| AS7738 | V tal | 2,365 |
| AS8167 | V tal | 1,781 |
| AS1031 | PEER 1031 LLC | 1,548 |
| AS10429 | TELEFONICA BRASIL S.A | 719 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | 256 |
| AS33891 | Core-Backbone GmbH | 227 |
| AS3303 | Swisscom (Schweiz) AG | 154 |
| AS6057 | Administracion Nacional de Telecomunicaciones | 125 |
| AS137409 | GSL Networks Pty LTD | 94 |
| AS24961 | WIIT AG | 60 |
| AS61626 | UNIVERSIDADE ESTADUAL DE PONTA GROSSA | 44 |
| AS37468 | Angola Cables | 42 |
| AS8455 | - | 35 |
| AS28917 | Fiord Networks, UAB | 4 |
| AS7195 | EDGEUNO S.A.S | 1 |
Downstreams (customers) (29)
| AS | Network | Visibility |
|---|---|---|
| AS273309 | UNI TELECOM LTDA | 3,810 |
| AS269180 | VIPNET Conexao | 1,134 |
| AS262663 | METROFLEX TELECOMUNICACOES LTDA | 829 |
| AS272278 | MVW Telecomunicacoes | 799 |
| AS270406 | F.A.A PROVEDOR LTDA - ME | 675 |
| AS273782 | S & M Nacional Telecom Ltda | 546 |
| AS274340 | Globo Net Telecomunicacoes LTDA | 492 |
| AS266572 | WORLDNET TELECOMUNICACOES | 490 |
| AS266535 | PELIKAN NET LTDA-ME | 489 |
| AS269481 | PROINFO-COMERCIO E SERVICOS P/INFORMATICA LTDA-ME | 489 |
| AS264019 | - | 487 |
| AS269069 | - | 487 |
| AS52540 | - | 484 |
| AS268277 | - | 483 |
| AS264166 | - | 462 |
| AS263474 | - | 360 |
| AS263947 | - | 355 |
| AS268750 | - | 341 |
| AS272190 | I9 COMERCIO E SERVICOS DE TELECOMUNICACAO | 310 |
| AS265307 | - | 293 |
| AS273337 | - | 262 |
| AS274503 | - | 262 |
| AS274540 | - | 257 |
| AS274547 | - | 257 |
| AS271323 | - | 204 |
| AS273365 | - | 187 |
| AS271017 | AMAZONFIBER SERVICOS DE COMUNICACAO LTDA | 155 |
| AS271638 | Cronos Telecom | 150 |
| AS274372 | - | 137 |
49 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.
Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.
How to read this page
An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.
A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.
Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.
The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.