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Autonomous System

AS52871 · TASCOM TELECOMUNICACOES LTDA

Overview

AS52871 is announced on the Internet: RIPE RIS route collectors currently see 89 IPv4 prefixes and 94 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 14,592 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 4 upstream neighbours (transit providers or peers) and 49 downstream neighbours (customers or networks it carries). Its most visible upstreams are TELECOM ITALIA SPARKLE S.p.A. (AS6762), Level 3 Parent, LLC (AS3356), and BR.Digital Telecom (AS14840). AS52871 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:57 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 177.136.0.1, the first address of 177.136.0.0/21. 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 (89 prefixes)

PrefixAddresses
177.136.0.0/212,048
177.136.0.0/221,024
177.136.0.0/23512
177.136.0.0/24256
177.136.1.0/24256
177.136.2.0/23512
177.136.2.0/24256
177.136.3.0/24256
177.136.4.0/221,024
177.136.4.0/23512
177.136.4.0/24256
177.136.5.0/24256
177.136.6.0/23512
177.136.6.0/24256
177.136.7.0/24256
177.136.8.0/23512
177.136.8.0/24256
177.136.9.0/24256
177.136.12.0/24256
177.136.14.0/23512
177.136.14.0/24256
177.136.15.0/24256
177.136.32.0/212,048
177.136.32.0/221,024
177.136.32.0/23512
177.136.32.0/24256
177.136.33.0/24256
177.136.34.0/23512
177.136.34.0/24256
177.136.35.0/24256
177.136.36.0/221,024
177.136.36.0/23512
177.136.36.0/24256
177.136.37.0/24256
177.136.38.0/23512
177.136.38.0/24256
177.136.39.0/24256
177.136.40.0/23512
177.136.40.0/24256
177.136.41.0/24256
177.136.43.0/24256
177.136.44.0/23512
177.136.44.0/24256
177.136.45.0/24256
177.136.47.0/24256
201.157.194.0/23512
201.157.194.0/24256
201.157.195.0/24256
201.157.199.0/24256
201.157.200.0/212,048
201.157.200.0/221,024
201.157.200.0/23512
201.157.200.0/24256
201.157.201.0/24256
201.157.202.0/23512
201.157.202.0/24256
201.157.203.0/24256
201.157.204.0/221,024
201.157.204.0/23512
201.157.204.0/24256
201.157.205.0/24256
201.157.206.0/23512
201.157.206.0/24256
201.157.207.0/24256
201.157.208.0/23512
201.157.208.0/24256
201.157.209.0/24256
201.157.210.0/24256
201.157.212.0/24256
201.157.214.0/23512
201.157.214.0/24256
201.157.215.0/24256
201.157.217.0/24256
201.157.218.0/24256
201.157.220.0/24256
201.157.229.0/24256
201.157.231.0/24256
201.157.235.0/24256
201.157.236.0/23512
201.157.236.0/24256
201.157.237.0/24256
201.157.251.0/24256
201.157.252.0/221,024
201.157.252.0/23512
201.157.252.0/24256
201.157.253.0/24256
201.157.254.0/23512
201.157.254.0/24256
201.157.255.0/24256

IPv6 prefixes (94 prefixes)

Prefix
2804:870::/32
2804:870::/48
2804:870:3::/48
2804:870:4::/48
2804:870:5::/48
2804:870:d::/48
2804:870:17::/48
2804:870:1c::/48
2804:870:1e::/48
2804:870:1f::/48
2804:870:39::/48
2804:870:40::/44
2804:870:80::/44
2804:870:fb::/48
2804:870:fe::/48
2804:870:100::/40
2804:870:400::/40
2804:870:500::/40
2804:870:7a00::/40
2804:870:7b00::/40
2804:870:7c00::/40
2804:870:7d00::/40
2804:870:f800::/40
2804:870:f801::/48
2804:870:f880::/48
2804:870:f881::/48
2804:870:f882::/48
2804:870:f883::/48
2804:870:f884::/48
2804:870:f887::/48
2804:870:f889::/48
2804:870:f88a::/48
2804:870:f88b::/48
2804:870:f88d::/48
2804:870:f901::/48
2804:870:f902::/48
2804:870:f903::/48
2804:870:f904::/48
2804:870:f905::/48
2804:870:f906::/48
2804:870:f907::/48
2804:870:f909::/48
2804:870:f90a::/48
2804:870:f90b::/48
2804:870:f90c::/48
2804:870:f90d::/48
2804:870:f90e::/48
2804:870:f90f::/48
2804:870:f910::/48
2804:870:f911::/48
2804:870:f912::/48
2804:870:f913::/48
2804:870:f914::/48
2804:870:f915::/48
2804:870:f916::/48
2804:870:f918::/48
2804:870:f91a::/48
2804:870:f91b::/48
2804:870:f91c::/48
2804:870:f91d::/48
2804:870:f91e::/48
2804:870:f91f::/48
2804:870:f920::/48
2804:870:f921::/48
2804:870:f922::/48
2804:870:f923::/48
2804:870:f924::/48
2804:870:f925::/48
2804:870:f926::/48
2804:870:f927::/48
2804:870:f928::/48
2804:870:f929::/48
2804:870:f92a::/48
2804:870:f92b::/48
2804:870:f92c::/48
2804:870:f92d::/48
2804:870:f92e::/48
2804:870:f92f::/48
2804:870:f930::/48
2804:870:f932::/48
2804:870:f933::/48
2804:870:f934::/48
2804:870:f935::/48
2804:870:f936::/48
2804:870:f937::/48
2804:870:f938::/48
2804:870:f939::/48
2804:870:f93a::/48
2804:870:f93c::/48
2804:870:f93d::/48
2804:870:f93f::/48
2804:870:f941::/48
2804:870:f942::/48
2804:870:f945::/48

Neighbours

Upstreams (transit or peers) (4)

ASNetworkVisibility
AS6762TELECOM ITALIA SPARKLE S.p.A.13,524
AS3356Level 3 Parent, LLC625
AS14840BR.Digital Telecom40
AS1031PEER 1031 LLC1

Downstreams (customers) (49)

ASNetworkVisibility
AS262668Mar Provedor de Internet Ltda929
AS262687Screen Saver Informatica LTDA674
AS200464PAULO HENRIQUE SILVA DE OLIVEIRA505
AS268314EWERTON DA SILVA LOPES TELECOMUNICACOES364
AS269619NELSON NET357
AS267210Netsoluti Solucoes em Informatica e Internet LTDA356
AS267350Go INTERNET E TELECOM LTDA ME356
AS268341CS NET COMUNICACAO LTDA352
AS266327NCS-Fibra ( New Central Solutions )351
AS271688CONECTE FIBRA TELECOMUNICACOES EIRELI350
AS268261-348
AS268695-346
AS268448-335
AS270939-324
AS271457VOLTSNET PROVEDOR COMERCIO E SERVICO LTDA ME ME323
AS268336-310
AS268546RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES298
AS268477-293
AS268797-282
AS267477-274
AS267479-261
AS273605-258
AS271157-257
AS40356-256
AS265169-255
AS271618-255
AS270409-253
AS271076-251
AS274995-245
AS267297-244

The 30 most visible of 49.

4 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.