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Autonomous System

AS53181 · Avanca Telecom e Servicos LTDA

Overview

AS53181 is announced on the Internet: RIPE RIS route collectors currently see 43 IPv4 prefixes and 17 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 10,240 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 18 upstream neighbours (transit providers or peers) and 150 downstream neighbours (customers or networks it carries). Its most visible upstreams are Seabras 1 USA, LLC (AS13786), Angola Cables (AS37468), and Huge Solucoes Corporativas Ltda (AS264409). AS53181 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:58 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 191.241.64.1, the first address of 191.241.64.0/20. 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 (43 prefixes)

PrefixAddresses
45.164.112.0/221,024
45.164.112.0/24256
45.164.113.0/24256
45.164.114.0/24256
45.164.115.0/24256
138.204.64.0/221,024
138.204.64.0/24256
138.204.65.0/24256
138.204.66.0/24256
138.204.67.0/24256
191.241.64.0/204,096
191.241.64.0/24256
191.241.65.0/24256
191.241.66.0/24256
191.241.67.0/24256
191.241.68.0/24256
191.241.69.0/24256
191.241.70.0/24256
191.241.71.0/24256
191.241.72.0/24256
191.241.73.0/24256
191.241.74.0/24256
191.241.75.0/24256
191.241.76.0/24256
191.241.77.0/24256
191.241.78.0/24256
191.241.79.0/24256
201.33.160.0/204,096
201.33.160.0/24256
201.33.161.0/24256
201.33.162.0/24256
201.33.163.0/24256
201.33.164.0/24256
201.33.165.0/24256
201.33.166.0/24256
201.33.167.0/24256
201.33.168.0/24256
201.33.169.0/24256
201.33.170.0/24256
201.33.171.0/24256
201.33.172.0/24256
201.33.174.0/24256
201.33.175.0/24256

IPv6 prefixes (17 prefixes)

Prefix
2804:113c::/32
2804:113c:8000::/38
2804:113c:8400::/38
2804:113c:8800::/38
2804:113c:8c00::/38
2804:113c:9000::/38
2804:113c:9c00::/38
2804:113c:a000::/38
2804:113c:a400::/38
2804:113c:a800::/38
2804:113c:ac00::/38
2804:53e4::/32
2804:53e4::/38
2804:53e4:400::/38
2804:53e4:800::/38
2804:53e4:c00::/38
2804:53e4:1000::/38

Neighbours

Upstreams (transit or peers) (18)

ASNetworkVisibility
AS13786Seabras 1 USA, LLC42,972
AS37468Angola Cables28,160
AS264409Huge Solucoes Corporativas Ltda606
AS137409GSL Networks Pty LTD495
AS6057Administracion Nacional de Telecomunicaciones376
AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA215
AS263099STIW Sistema de Telecom. Inf e Wireless LTDA204
AS35280F5 Networks SARL177
AS28260ALTA REDE CORPORATE NETWORK TELECOM LTDA - EPP86
AS26615TIM S/A63
AS7195EDGEUNO S.A.S60
AS263153-57
AS265944-55
AS14840BR.Digital Telecom16
AS39120-8
AS16735ALGAR TELECOM S/A4
AS262896-2
AS53047-1

Downstreams (customers) (150)

ASNetworkVisibility
AS28260ALTA REDE CORPORATE NETWORK TELECOM LTDA - EPP10,229
AS270337KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA2,964
AS52699ITANET CONECTA LTDA2,233
AS61797CHECK-UP NET TELECOM1,639
AS271067Villaggionet Telecomunicacoes1,617
AS270548AGI TELECOM LTDA1,615
AS263145GRUPO MEGA FLASH SERVICOS E COM LTDA - EPP1,480
AS264215W FIBRA TELECOM LTDA1,466
AS61951BRASIL-IP TELECOMUNICACOES LTDA - ME1,436
AS262450NORTENET TELECOMUNICACOES DO BRASIL LTDA - EPP1,212
AS263928JBMNET TELECOM1,127
AS263099-1,060
AS61625Grupo We Dev LTDA868
AS270439-811
AS263482-800
AS264032-776
AS270886-753
AS270544-743
AS265093-671
AS28125-664
AS53142-663
AS52639-628
AS263380-616
AS263508SIMNET TELECOMUNICACOES LTDA610
AS53047-609
AS270440-547
AS264075-543
AS268194-541
AS273336-532
AS273740-529

The 30 most visible of 150.

136 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.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.