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Autonomous System

AS28186 · ITS TELECOMUNICACOES LTDA

Overview

AS28186 is announced on the Internet: RIPE RIS route collectors currently see 124 IPv4 prefixes and 73 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 69,632 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 17 upstream neighbours (transit providers or peers) and 78 downstream neighbours (customers or networks it carries). Its most visible upstreams are V tal (AS7738), Hurricane Electric LLC (AS6939), and Level 3 Parent, LLC (AS3356). AS28186 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 187.44.128.1, the first address of 187.44.128.0/17. 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 (124 prefixes)

PrefixAddresses
138.117.176.0/221,024
177.8.224.0/204,096
177.8.224.0/24256
177.8.225.0/24256
177.8.226.0/24256
177.21.0.0/198,192
177.21.0.0/204,096
177.21.6.0/24256
177.21.16.0/204,096
177.21.21.0/24256
177.23.80.0/212,048
177.23.80.0/221,024
177.23.84.0/221,024
177.136.112.0/204,096
177.136.112.0/24256
177.136.115.0/24256
177.136.116.0/24256
177.136.127.0/24256
187.44.128.0/1732,768
187.44.128.0/1816,384
187.44.128.0/204,096
187.44.130.0/24256
187.44.133.0/24256
187.44.140.0/24256
187.44.144.0/204,096
187.44.148.0/24256
187.44.151.0/24256
187.44.153.0/24256
187.44.154.0/24256
187.44.160.0/204,096
187.44.161.0/24256
187.44.164.0/24256
187.44.165.0/24256
187.44.167.0/24256
187.44.173.0/24256
187.44.174.0/24256
187.44.176.0/204,096
187.44.178.0/24256
187.44.182.0/24256
187.44.184.0/24256
187.44.185.0/24256
187.44.188.0/24256
187.44.190.0/24256
187.44.191.0/24256
187.44.192.0/1816,384
187.44.192.0/204,096
187.44.193.0/24256
187.44.195.0/24256
187.44.196.0/24256
187.44.200.0/24256
187.44.202.0/24256
187.44.204.0/24256
187.44.205.0/24256
187.44.207.0/24256
187.44.208.0/204,096
187.44.208.0/24256
187.44.211.0/24256
187.44.218.0/24256
187.44.223.0/24256
187.44.224.0/204,096
187.44.224.0/24256
187.44.225.0/24256
187.44.229.0/24256
187.44.231.0/24256
187.44.232.0/24256
187.44.240.0/204,096
187.44.240.0/24256
187.44.242.0/24256
187.44.245.0/24256
187.44.246.0/24256
187.44.247.0/24256
187.44.249.0/24256
187.44.250.0/24256
187.44.251.0/24256
187.44.252.0/24256
187.44.255.0/24256
189.89.128.0/1816,384
189.89.128.0/198,192
189.89.128.0/212,048
189.89.128.0/23512
189.89.128.0/24256
189.89.129.0/24256
189.89.130.0/23512
189.89.130.0/24256
189.89.131.0/24256
189.89.132.0/221,024
189.89.132.0/24256
189.89.134.0/24256
189.89.135.0/24256
189.89.136.0/212,048
189.89.137.0/24256
189.89.141.0/24256
189.89.144.0/204,096
189.89.144.0/212,048
189.89.144.0/24256
189.89.145.0/24256
189.89.146.0/24256
189.89.148.0/24256
189.89.150.0/24256
189.89.152.0/212,048

Showing the first 100 of 124, in address order. Complete list on RIPEstat

IPv6 prefixes (73 prefixes)

Prefix
2804:204::/32
2804:204::/33
2804:204:187::/48
2804:204:189::/48
2804:204:201::/48
2804:204:208::/48
2804:204:212::/48
2804:204:213::/48
2804:204:21a::/48
2804:204:21d::/48
2804:204:21e::/48
2804:204:21f::/48
2804:204:222::/48
2804:204:223::/48
2804:204:226::/48
2804:204:22c::/48
2804:204:230::/48
2804:204:231::/48
2804:204:23b::/48
2804:204:23e::/48
2804:204:245::/48
2804:204:249::/48
2804:204:251::/48
2804:204:25f::/48
2804:204:262::/48
2804:204:263::/48
2804:204:265::/48
2804:204:26f::/48
2804:204:283::/48
2804:204:285::/48
2804:204:288::/48
2804:204:289::/48
2804:204:28a::/48
2804:204:296::/48
2804:204:298::/48
2804:204:299::/48
2804:204:29e::/48
2804:204:2a0::/48
2804:204:2dd::/48
2804:204:305::/48
2804:204:309::/48
2804:204:30a::/48
2804:204:30d::/48
2804:204:31e::/48
2804:204:321::/48
2804:204:326::/48
2804:204:329::/48
2804:204:32c::/48
2804:204:32d::/48
2804:204:33a::/48
2804:204:33c::/48
2804:204:33d::/48
2804:204:340::/48
2804:204:341::/48
2804:204:344::/48
2804:204:349::/48
2804:204:34f::/48
2804:204:354::/48
2804:204:35a::/48
2804:204:35b::/48
2804:204:361::/48
2804:204:369::/48
2804:204:b00::/40
2804:204:d00::/40
2804:204:8000::/33
2804:24dc::/32
2804:24dc::/33
2804:24dc:c0::/44
2804:24dc:d0::/44
2804:24dc:200::/40
2804:24dc:202::/48
2804:24dc:300::/40
2804:24dc:400::/40

Neighbours

Upstreams (transit or peers) (17)

ASNetworkVisibility
AS7738V tal13,235
AS6939Hurricane Electric LLC12,127
AS3356Level 3 Parent, LLC5,440
AS12956TELEFONICA GLOBAL SOLUTIONS SL2,476
AS52863UPX TECNOLOGIA LTDA1,217
AS264963LUMIAR TELECOMUNICACOES250
AS6057Administracion Nacional de Telecomunicaciones160
AS35280F5 Networks SARL81
AS137409GSL Networks Pty LTD78
AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA60
AS14840BR.Digital Telecom36
AS37468Angola Cables3
AS7195EDGEUNO S.A.S2
AS1031PEER 1031 LLC1
AS39120Convergenze S.p.A.1
AS58453China Mobile International Limited1
AS64126DOMINICAN TELECOM PRIME, DTP, S.R.L.1

Downstreams (customers) (78)

ASNetworkVisibility
AS52999START NETWORKS S/A3,716
AS264963LUMIAR TELECOMUNICACOES1,169
AS264404NETGOOL TELECOMUNICACOES1,127
AS262769AVANZA TELECOM LTDA1,048
AS271063GF WEB TELECOM960
AS270749VTI PROVEDOR DE INTERNET E SUP DE INFORMATICA ME946
AS268425TURBOMAIS NETWORKS TELECOMUNICACOES LTDA787
AS267030Starnet.saj Acessorios e Servicos LTDA780
AS264882INFO RIEJ - TELECOMUNICACOES LTDA - ME745
AS268304LUZANE TIANO BOMFIM (VELOZNET)734
AS266371-674
AS263981-630
AS265364-630
AS262663METROFLEX TELECOMUNICACOES LTDA594
AS270810-557
AS267545-535
AS268379-524
AS25832-523
AS267132-506
AS264952-495
AS268810-491
AS52647-488
AS270761-485
AS267119-481
AS269583-481
AS263975-480
AS271094-480
AS272413-478
AS267210-477
AS271316-475

The 30 most visible of 78.

78 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.