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Autonomous System

AS28202 · MASTER S/A

Overview

AS28202 is announced on the Internet: RIPE RIS route collectors currently see 1,133 IPv4 prefixes and 15 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 212,992 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 17 upstream neighbours (transit providers or peers) and 34 downstream neighbours (customers or networks it carries). Its most visible upstreams are Angola Cables (AS37468), GlobeNet Cabos Submarinos Colombia, S.A.S. (AS52320), and Seabras 1 USA, LLC (AS13786). AS28202 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

Trace a route to this networkOpen in the BGP viewerWHOIS of 191.53.0.1

The trace goes to 191.53.0.1, the first address of 191.53.0.0/16. 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 (1,133 prefixes)

PrefixAddresses
177.44.0.0/1732,768
177.44.0.0/204,096
177.44.0.0/212,048
177.44.0.0/221,024
177.44.0.0/23512
177.44.0.0/24256
177.44.1.0/24256
177.44.2.0/23512
177.44.2.0/24256
177.44.3.0/24256
177.44.4.0/23512
177.44.4.0/24256
177.44.5.0/24256
177.44.6.0/24256
177.44.7.0/24256
177.44.8.0/24256
177.44.9.0/24256
177.44.10.0/23512
177.44.10.0/24256
177.44.11.0/24256
177.44.12.0/23512
177.44.12.0/24256
177.44.13.0/24256
177.44.14.0/24256
177.44.15.0/24256
177.44.16.0/23512
177.44.16.0/24256
177.44.17.0/24256
177.44.18.0/24256
177.44.19.0/24256
177.44.20.0/23512
177.44.20.0/24256
177.44.21.0/24256
177.44.22.0/24256
177.44.23.0/24256
177.44.24.0/221,024
177.44.24.0/23512
177.44.24.0/24256
177.44.25.0/24256
177.44.26.0/23512
177.44.26.0/24256
177.44.27.0/24256
177.44.28.0/221,024
177.44.28.0/23512
177.44.28.0/24256
177.44.29.0/24256
177.44.30.0/23512
177.44.30.0/24256
177.44.31.0/24256
177.44.32.0/24256
177.44.33.0/24256
177.44.34.0/23512
177.44.34.0/24256
177.44.35.0/24256
177.44.36.0/24256
177.44.37.0/24256
177.44.38.0/23512
177.44.38.0/24256
177.44.39.0/24256
177.44.40.0/23512
177.44.40.0/24256
177.44.41.0/24256
177.44.42.0/24256
177.44.44.0/24256
177.44.45.0/24256
177.44.46.0/24256
177.44.47.0/24256
177.44.48.0/212,048
177.44.48.0/221,024
177.44.48.0/23512
177.44.48.0/24256
177.44.49.0/24256
177.44.50.0/23512
177.44.50.0/24256
177.44.51.0/24256
177.44.52.0/221,024
177.44.52.0/23512
177.44.52.0/24256
177.44.53.0/24256
177.44.54.0/23512
177.44.54.0/24256
177.44.55.0/24256
177.44.56.0/212,048
177.44.56.0/221,024
177.44.56.0/23512
177.44.56.0/24256
177.44.57.0/24256
177.44.58.0/23512
177.44.58.0/24256
177.44.59.0/24256
177.44.60.0/221,024
177.44.60.0/23512
177.44.60.0/24256
177.44.61.0/24256
177.44.62.0/23512
177.44.62.0/24256
177.44.63.0/24256
177.44.65.0/24256
177.44.66.0/23512
177.44.66.0/24256

Showing the first 100 of 1,133, in address order. Complete list on RIPEstat

IPv6 prefixes (15 prefixes)

Prefix
2804:87c::/32
2804:87c::/33
2804:87c:1::/48
2804:87c:2::/48
2804:87c:8::/48
2804:87c:c01::/48
2804:87c:c02::/48
2804:87c:c04::/48
2804:87c:c07::/48
2804:87c:c08::/48
2804:87c:c09::/48
2804:87c:c0c::/48
2804:87c:c0d::/48
2804:87c:2000::/48
2804:87c:8000::/33

Neighbours

Upstreams (transit or peers) (17)

ASNetworkVisibility
AS37468Angola Cables8,636
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.5,302
AS13786Seabras 1 USA, LLC1,754
AS6939Hurricane Electric LLC1,506
AS52468UFINET PANAMA S.A.961
AS1031PEER 1031 LLC394
AS6057Administracion Nacional de Telecomunicaciones90
AS28198SEMPRE TELECOMUNICACOES LTDA84
AS33891Core-Backbone GmbH71
AS53013UFINET BRASIL S.A.46
AS137409GSL Networks Pty LTD44
AS35280F5 Networks SARL42
AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA18
AS8455-8
AS24961WIIT AG2
AS7195EDGEUNO S.A.S1
AS39120Convergenze S.p.A.1

Downstreams (customers) (34)

ASNetworkVisibility
AS262851PLIM TELECOMUNICACOES LTDA-ME1,528
AS52928NORTETEL TELECOMUNICACOES LTDA1,367
AS52612Alt Informatica Ltda1,265
AS52695NETFACIL LTDA ME1,154
AS267158MG NET TELECOMUNICACOES LTDA ME970
AS266641Lavrasnet Servicos de Provedor de Internet Ltda928
AS264358PETRANET INTERNET LTDA741
AS264919Ultraceu Ltda726
AS273766Rural Telecom710
AS271516UNAFIBER TELECOM LTDA688
AS263424-555
AS266427-555
AS266591-535
AS262663METROFLEX TELECOMUNICACOES LTDA528
AS267648-518
AS269308-482
AS52893F1 SOLUTIONS DATACENTER E TELECOMUNICACOES LTDA467
AS270613-460
AS264865-457
AS269018-444
AS218535-438
AS264351-420
AS267126SHIELD TELECOM LTDA365
AS266265-318
AS267228-307
AS262393-302
AS263955-276
AS262364-269
AS273422-260
AS274549-248

The 30 most visible of 34.

45 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.