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Autonomous System

AS28220 · Alares Cabo Servicos de Telecomunicacoes S.A.

Overview

AS28220 is announced on the Internet: RIPE RIS route collectors currently see 221 IPv4 prefixes and 59 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 309,248 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 19 upstream neighbours (transit providers or peers) and 65 downstream neighbours (customers or networks it carries). Its most visible upstreams are EDGEUNO S.A.S (AS7195), GlobeNet Cabos Submarinos Colombia, S.A.S. (AS52320), and Angola Cables (AS37468). AS28220 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 6:32 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 177.89.0.1, the first address of 177.89.0.0/16. 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 (221 prefixes)

PrefixAddresses
45.4.64.0/221,024
45.165.20.0/221,024
45.227.188.0/221,024
131.108.228.0/221,024
138.0.100.0/221,024
138.121.220.0/221,024
138.122.236.0/221,024
138.122.236.0/24256
138.122.237.0/24256
138.255.216.0/221,024
138.255.216.0/23512
138.255.218.0/23512
168.121.148.0/221,024
168.121.148.0/23512
168.121.150.0/23512
168.227.44.0/23512
168.227.46.0/24256
168.227.108.0/221,024
168.228.68.0/221,024
170.82.92.0/221,024
170.82.132.0/221,024
170.82.132.0/23512
170.82.134.0/23512
170.247.236.0/221,024
170.247.236.0/23512
170.247.238.0/23512
177.8.48.0/212,048
177.8.48.0/23512
177.8.50.0/23512
177.8.52.0/221,024
177.8.52.0/23512
177.8.54.0/23512
177.55.48.0/204,096
177.55.48.0/23512
177.55.50.0/23512
177.55.52.0/23512
177.55.54.0/23512
177.55.56.0/23512
177.55.58.0/23512
177.55.60.0/23512
177.55.62.0/23512
177.89.0.0/1665,536
177.89.48.0/212,048
177.89.56.0/212,048
177.89.64.0/198,192
177.89.96.0/198,192
177.89.128.0/198,192
177.89.160.0/212,048
177.89.192.0/204,096
177.89.208.0/212,048
177.89.232.0/212,048
177.89.240.0/212,048
177.89.248.0/212,048
177.130.192.0/198,192
177.130.200.0/212,048
177.130.200.0/24256
177.137.192.0/204,096
177.137.201.0/24256
177.137.206.0/24256
179.96.192.0/212,048
179.96.240.0/204,096
179.96.240.0/24256
179.190.128.0/1732,768
179.190.128.0/24256
179.190.130.0/23512
179.190.136.0/212,048
179.190.144.0/212,048
179.190.152.0/212,048
179.190.160.0/212,048
179.190.168.0/212,048
179.190.176.0/212,048
179.190.184.0/212,048
179.190.192.0/212,048
179.190.200.0/212,048
179.190.208.0/212,048
179.190.216.0/212,048
179.190.224.0/198,192
179.190.232.0/212,048
186.192.16.0/204,096
186.192.18.0/24256
186.192.19.0/24256
186.193.96.0/204,096
186.193.96.0/212,048
186.193.104.0/212,048
186.208.208.0/212,048
186.208.208.0/24256
186.208.209.0/24256
186.208.210.0/23512
186.208.210.0/24256
186.208.211.0/24256
186.208.213.0/24256
186.208.214.0/24256
186.208.215.0/24256
186.235.0.0/204,096
186.236.192.0/198,192
186.236.192.0/212,048
186.236.208.0/212,048
186.236.216.0/221,024
186.236.220.0/221,024
186.251.112.0/221,024

Showing the first 100 of 221, in address order. Complete list on RIPEstat

IPv6 prefixes (59 prefixes)

Prefix
2804:54::/32
2804:54:5::/48
2804:54:7::/48
2804:54:8::/48
2804:54:10::/44
2804:54:1200::/40
2804:54:1300::/40
2804:54:1400::/40
2804:54:1500::/40
2804:54:1600::/40
2804:54:1700::/40
2804:54:1800::/40
2804:54:1900::/40
2804:54:1b00::/40
2804:54:1c00::/40
2804:54:1d00::/40
2804:54:2100::/40
2804:54:6007::/48
2804:54:8000::/35
2804:54:8000::/48
2804:880:1001::/48
2804:880:1002::/48
2804:880:1300::/40
2804:880:1600::/39
2804:880:1800::/39
2804:2140::/32
2804:2140:a::/48
2804:2140:1003::/48
2804:2140:1004::/48
2804:2140:1005::/48
2804:2140:1007::/48
2804:2140:1008::/48
2804:2140:1009::/48
2804:2140:100a::/48
2804:2140:100b::/48
2804:2140:100c::/48
2804:2140:100e::/48
2804:2140:100f::/48
2804:2140:1012::/48
2804:2140:1013::/48
2804:2140:1014::/48
2804:2140:1016::/48
2804:2140:1020::/46
2804:2140:1801::/48
2804:2140:d200::/39
2804:2140:d800::/39
2804:2140:da00::/39
2804:2140:dc00::/39
2804:2140:de00::/39
2804:2140:e200::/39
2804:2140:e400::/39
2804:2140:e800::/39
2804:2140:ea00::/39
2804:2140:ec00::/39
2804:2140:ee00::/39
2804:2140:f400::/39
2804:2140:f800::/39
2804:2140:fa00::/39
2804:2140:fc00::/39

Neighbours

Upstreams (transit or peers) (19)

ASNetworkVisibility
AS7195EDGEUNO S.A.S15,679
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.12,601
AS37468Angola Cables9,195
AS6762TELECOM ITALIA SPARKLE S.p.A.3,732
AS3356Level 3 Parent, LLC3,426
AS6939Hurricane Electric LLC1,318
AS1031PEER 1031 LLC1,082
AS52468UFINET PANAMA S.A.286
AS262493-278
AS13786Seabras 1 USA, LLC250
AS61568ALOO TELECOM - FSF TECNOLOGIA SA198
AS3303Swisscom (Schweiz) AG192
AS6057Administracion Nacional de Telecomunicaciones144
AS33891Core-Backbone GmbH140
AS24961WIIT AG129
AS137409GSL Networks Pty LTD9
AS53013UFINET BRASIL S.A.5
AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA4
AS274830-1

Downstreams (customers) (65)

ASNetworkVisibility
AS265080AD TELECOM7,888
AS262509-2,884
AS268323-2,838
AS263994Fullnet Telecomunicacoes LTDA2,809
AS262493-2,410
AS262818g j pereira2,384
AS264949REAL LINK PROVEDOR DE INTERNET EIRELI1,818
AS270965NET MIX LTDA - ME1,384
AS263443L R DA FONSECA ME1,357
AS263665-1,332
AS269701-1,195
AS263553-1,057
AS266164-978
AS265126-953
AS264013CONNECTA TELECOM INTERNET LTDA - EPP788
AS28270-718
AS52562-706
AS262755-638
AS268560-616
AS28184-595
AS264554-551
AS274570-532
AS268328-486
AS61901-484
AS271607-475
AS273747-474
AS262382-442
AS271724-383
AS267582-372
AS263991-346

The 30 most visible of 65.

59 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.