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Autonomous System

AS4230 · CLARO S.A.

Overview

AS4230 is announced on the Internet: RIPE RIS route collectors currently see 81 IPv4 prefixes and 6 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 5,159,680 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 102 upstream neighbours (transit providers or peers) and 1,614 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), PEER 1031 LLC (AS1031), and Level 3 Parent, LLC (AS3356). AS4230 was assigned by ARIN, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:56 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 191.56.0.1

The trace goes to 191.56.0.1, the first address of 191.56.0.0/14. 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 (81 prefixes)

PrefixAddresses
179.68.0.0/1665,536
179.237.0.0/204,096
179.237.16.0/212,048
179.237.24.0/23512
186.249.160.0/204,096
187.28.0.0/1665,536
187.29.0.0/1665,536
187.30.0.0/1665,536
187.43.0.0/1665,536
189.2.0.0/1665,536
189.3.0.0/1665,536
189.16.0.0/1665,536
189.17.0.0/1665,536
189.22.0.0/1665,536
189.23.0.0/1665,536
189.42.0.0/1665,536
189.43.0.0/1665,536
189.51.176.0/204,096
189.51.176.0/212,048
189.51.184.0/212,048
189.52.0.0/1665,536
189.53.0.0/1665,536
189.86.0.0/1665,536
189.87.0.0/1665,536
189.88.0.0/1665,536
191.38.0.0/15131,072
191.56.0.0/14262,144
191.60.0.0/14262,144
200.10.159.0/24256
200.139.192.0/1816,384
200.166.0.0/1665,536
200.167.0.0/1665,536
200.172.0.0/1665,536
200.173.0.0/1665,536
200.174.0.0/1665,536
200.178.0.0/1665,536
200.179.0.0/1665,536
200.182.0.0/1665,536
200.183.0.0/1665,536
200.190.0.0/1665,536
200.191.0.0/1665,536
200.192.0.0/1816,384
200.208.0.0/1665,536
200.209.0.0/1665,536
200.210.0.0/1665,536
200.211.0.0/1665,536
200.212.0.0/1665,536
200.213.0.0/1665,536
200.214.0.0/1665,536
200.227.0.0/1665,536
200.228.0.0/1665,536
200.230.0.0/1665,536
200.231.0.0/1665,536
200.241.0.0/1665,536
200.242.0.0/1665,536
200.243.0.0/1665,536
200.244.0.0/1665,536
200.245.0.0/1665,536
200.246.0.0/1665,536
200.247.0.0/1665,536
200.248.0.0/1665,536
200.249.0.0/1665,536
200.250.0.0/1665,536
200.251.0.0/1665,536
200.252.0.0/1665,536
200.253.0.0/1665,536
200.254.0.0/1665,536
200.255.0.0/1665,536
201.30.0.0/1665,536
201.31.0.0/1665,536
201.38.0.0/1665,536
201.39.0.0/1665,536
201.44.0.0/1665,536
201.45.0.0/1665,536
201.56.0.0/1665,536
201.57.0.0/1665,536
201.64.0.0/1665,536
201.65.0.0/1665,536
201.72.0.0/1665,536
201.73.0.0/1665,536
201.90.0.0/1665,536

IPv6 prefixes (6 prefixes)

Prefix
2600:1419:19::/48
2600:1419:4c00::/48
2600:1419:5c00::/48
2600:1419:8000::/48
2804:a8::/32
2804:1388::/30

Neighbours

Upstreams (transit or peers) (102)

ASNetworkVisibility
AS1299Arelion Sweden AB31,164
AS1031PEER 1031 LLC28,103
AS3356Level 3 Parent, LLC15,272
AS6762TELECOM ITALIA SPARKLE S.p.A.14,527
AS6939Hurricane Electric LLC13,413
AS6453TATA COMMUNICATIONS (AMERICA) INC11,794
AS3257GTT Communications Inc.11,631
AS174Cogent Communications, LLC11,522
AS35280F5 Networks SARL8,453
AS9002RETN Limited6,256
AS34549meerfarbig GmbH & Co. KG3,862
AS34927iFog GmbH3,270
AS37468Angola Cables2,999
AS5405Inter.link GmbH2,966
AS25091IP-Max SA2,730
AS8298IPng Networks GmbH2,727
AS34019Hivane Association2,708
AS8758Iway AG2,486
AS35625Eurofiber France SAS2,417
AS48362Stadtwerke Feldkirch2,411
AS3935131173 Services AB2,387
AS34177Celeste SAS2,349
AS29691-2,274
AS20764CJSC RASCOM2,227
AS47147Anexia Cloud Solutions GmbH2,183
AS60068Datacamp Limited1,977
AS1103SURF B.V.1,952
AS20485Joint Stock Company TransTeleCom1,884
AS24961WIIT AG1,816
AS24482SG.GS1,748

The 30 most visible of 102.

Downstreams (customers) (1,614)

ASNetworkVisibility
AS37468Angola Cables27,001
AS266583TELXE DO BRASIL TELECOMUNICACOES LTDA22,352
AS52925Ascenty Data Centers e Telecomunicacoes S/A19,123
AS1299Arelion Sweden AB15,716
AS6453TATA COMMUNICATIONS (AMERICA) INC15,101
AS174Cogent Communications, LLC12,556
AS264984CLICKIP PROVEDORES DE ACESSO LTDA9,775
AS28283Adylnet Telecom8,079
AS266520VOOB TELECOM6,888
AS264344AMAZONET TELECOMUNICACOES LTDA6,679
AS270867-5,890
AS264221-5,617
AS61745-5,186
AS23106-4,214
AS3257GTT Communications Inc.4,024
AS263661-3,781
AS267587-3,534
AS52626-3,240
AS61884-3,145
AS264899-3,062
AS6939Hurricane Electric LLC2,974
AS263434-2,853
AS270966-2,744
AS264509CONECTA AMAZONIA TELECOM LTDA. - ME2,644
AS264289-2,368
AS263474-2,331
AS264159-2,263
AS52654-2,158
AS271578-2,144
AS9002RETN Limited2,085

The 30 most visible of 1,614.

420 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.