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Autonomous System

AS52974 · Henet Telecomunicacoes Ltda

Overview

AS52974 is announced on the Internet: RIPE RIS route collectors currently see 106 IPv4 prefixes and 12 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 18,432 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 9 upstream neighbours (transit providers or peers) and 31 downstream neighbours (customers or networks it carries). Its most visible upstreams are Level 3 Parent, LLC (AS3356), Seabras 1 USA, LLC (AS13786), and Huge Solucoes Corporativas Ltda (AS264409). AS52974 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 4:54 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 177.38.240.1, the first address of 177.38.240.0/21. 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 (106 prefixes)

PrefixAddresses
45.5.80.0/221,024
45.5.80.0/24256
45.227.236.0/23512
45.227.236.0/24256
45.227.237.0/24256
45.227.238.0/23512
45.227.238.0/24256
45.227.239.0/24256
45.234.200.0/221,024
45.234.200.0/24256
45.234.201.0/24256
45.234.202.0/24256
45.234.203.0/24256
131.0.88.0/221,024
131.0.88.0/23512
131.0.88.0/24256
131.0.89.0/24256
131.0.90.0/23512
131.0.90.0/24256
131.0.91.0/24256
131.72.196.0/221,024
131.72.196.0/23512
131.72.196.0/24256
131.72.197.0/24256
131.72.198.0/23512
131.72.198.0/24256
131.72.199.0/24256
143.202.172.0/221,024
143.202.172.0/24256
143.202.173.0/24256
143.202.174.0/24256
143.202.175.0/24256
167.249.188.0/221,024
167.249.188.0/23512
167.249.188.0/24256
167.249.189.0/24256
167.249.190.0/23512
167.249.190.0/24256
167.249.191.0/24256
168.194.76.0/23512
168.194.76.0/24256
168.194.77.0/24256
168.194.78.0/23512
168.194.78.0/24256
168.194.79.0/24256
168.196.48.0/221,024
168.196.48.0/24256
168.196.49.0/24256
168.196.50.0/24256
168.196.51.0/24256
170.84.224.0/221,024
170.84.224.0/23512
170.84.224.0/24256
170.84.225.0/24256
170.84.226.0/23512
170.84.226.0/24256
170.84.227.0/24256
170.246.196.0/221,024
170.246.196.0/23512
170.246.196.0/24256
170.246.197.0/24256
170.246.198.0/23512
170.246.198.0/24256
170.246.199.0/24256
177.38.240.0/212,048
177.38.240.0/221,024
177.38.240.0/23512
177.38.240.0/24256
177.38.241.0/24256
177.38.242.0/24256
177.38.243.0/24256
177.38.244.0/221,024
177.38.244.0/23512
177.38.244.0/24256
177.38.245.0/24256
177.38.246.0/24256
177.38.247.0/24256
177.70.240.0/23512
177.70.240.0/24256
177.70.241.0/24256
177.70.242.0/23512
177.70.242.0/24256
177.70.243.0/24256
179.106.168.0/212,048
179.106.168.0/221,024
179.106.168.0/23512
179.106.168.0/24256
179.106.169.0/24256
179.106.170.0/24256
179.106.171.0/24256
179.106.172.0/23512
179.106.172.0/24256
179.106.173.0/24256
179.106.174.0/23512
179.106.174.0/24256
179.106.175.0/24256
181.233.172.0/23512
181.233.172.0/24256
181.233.173.0/24256
181.233.174.0/24256

Showing the first 100 of 106, in address order. Complete list on RIPEstat

IPv6 prefixes (12 prefixes)

Prefix
2804:1b94::/32
2804:1b94::/33
2804:1b94:200::/40
2804:1b94:400::/40
2804:1b94:500::/40
2804:1b94:600::/40
2804:1b94:700::/40
2804:1b94:800::/40
2804:1b94:900::/40
2804:1b94:a00::/40
2804:1b94:b00::/40
2804:1b94:8000::/33

Neighbours

Upstreams (transit or peers) (9)

ASNetworkVisibility
AS3356Level 3 Parent, LLC7,663
AS13786Seabras 1 USA, LLC2,259
AS264409Huge Solucoes Corporativas Ltda1,536
AS25091IP-Max SA280
AS6939Hurricane Electric LLC259
AS14840BR.Digital Telecom25
AS6057Administracion Nacional de Telecomunicaciones10
AS7195EDGEUNO S.A.S1
AS263908VICONTEC TECNOLOGIA INTERNET E REDES LTDA1

Downstreams (customers) (31)

ASNetworkVisibility
AS268674Conexao Bahia Sul726
AS269244DEAN MURILO GONCALVES OLIVEIRA - ME514
AS52525INPASUPRI - Com. de Suprimentos p/Inf. Ltda508
AS270566ANDREATA & ANDREATA489
AS264090Adilson Vanderlei dos Santos Alves e Cia Ltda401
AS270542J I INFORMATICA LTDA ME369
AS266924RIACHONET TELECOM368
AS271405SpaceInfo LTDA368
AS61744power net telecom eireli-me364
AS264235FUTURAMA INFORMATICA LTDA - ME362
AS265142-361
AS267365-359
AS269322-359
AS269622-359
AS270834-358
AS268351-357
AS267218-355
AS267488-355
AS264093-353
AS61723-348
AS268493-288
AS268733-263
AS270519-263
AS271616-263
AS269264-257
AS262962-249
AS272218Luiz Henrique Rocha Maciel246
AS271711-230
AS265472-190
AS263908-125

The 30 most visible of 31.

7 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.