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Autonomous System

AS28126 · BRISANET SERVICOS DE TELECOMUNICACOES S.A

Overview

AS28126 is announced on the Internet: RIPE RIS route collectors currently see 47 IPv4 prefixes and 7 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 83,968 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 66 upstream neighbours (transit providers or peers) and 83 downstream neighbours (customers or networks it carries). Its most visible upstreams are Angola Cables (AS37468), GlobeNet Cabos Submarinos Colombia, S.A.S. (AS52320), and Level 3 Parent, LLC (AS3356). AS28126 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 6:59 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 177.37.128.1, the first address of 177.37.128.0/17. 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 (47 prefixes)

PrefixAddresses
177.37.128.0/1732,768
177.37.128.0/198,192
177.37.128.0/204,096
177.37.144.0/204,096
177.37.160.0/198,192
177.37.160.0/204,096
177.37.172.0/23512
177.37.176.0/204,096
177.37.180.0/23512
177.37.182.0/23512
177.37.192.0/198,192
177.37.192.0/204,096
177.37.208.0/204,096
177.37.224.0/198,192
177.37.224.0/204,096
177.37.240.0/204,096
177.37.248.0/23512
177.154.48.0/212,048
177.154.48.0/221,024
177.154.52.0/221,024
187.19.128.0/1732,768
187.19.128.0/198,192
187.19.128.0/204,096
187.19.132.0/23512
187.19.144.0/204,096
187.19.160.0/198,192
187.19.160.0/204,096
187.19.176.0/204,096
187.19.176.0/23512
187.19.192.0/198,192
187.19.192.0/204,096
187.19.208.0/204,096
187.19.224.0/198,192
187.19.224.0/204,096
187.19.230.0/23512
187.19.240.0/204,096
206.42.0.0/1816,384
206.42.0.0/198,192
206.42.0.0/204,096
206.42.16.0/204,096
206.42.22.0/24256
206.42.32.0/198,192
206.42.32.0/204,096
206.42.44.0/24256
206.42.48.0/204,096
206.42.53.0/24256
206.42.54.0/24256

IPv6 prefixes (7 prefixes)

Prefix
2804:29b8::/32
2804:29b8::/33
2804:29b8:1000::/36
2804:29b8:5000::/36
2804:29b8:5400::/40
2804:29b8:6000::/36
2804:29b8:8000::/33

Neighbours

Upstreams (transit or peers) (66)

ASNetworkVisibility
AS37468Angola Cables8,005
AS52320GlobeNet Cabos Submarinos Colombia, S.A.S.7,981
AS3356Level 3 Parent, LLC7,301
AS13786Seabras 1 USA, LLC4,506
AS6939Hurricane Electric LLC4,317
AS12956TELEFONICA GLOBAL SOLUTIONS SL2,975
AS28264ADLLink Provedor de Internet Via Radio LTDA374
AS7195EDGEUNO S.A.S327
AS6057Administracion Nacional de Telecomunicaciones229
AS137409GSL Networks Pty LTD97
AS35280F5 Networks SARL95
AS268897SUPRI NET SERVICOS E COMERCIO LTDA - ME89
AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA85
AS265936-63
AS14840BR.Digital Telecom40
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC15
AS5405Inter.link GmbH6
AS33891Core-Backbone GmbH6
AS34549meerfarbig GmbH & Co. KG4
AS20562-3
AS25091IP-Max SA3
AS34019Hivane Association3
AS34927iFog GmbH3
AS35625Eurofiber France SAS3
AS39120Convergenze S.p.A.3
AS1267WIND TRE S.P.A.2
AS6797-2
AS8758Iway AG2
AS12779IT.Gate S.p.A.2
AS12859BIT BV2

The 30 most visible of 66.

Downstreams (customers) (83)

ASNetworkVisibility
AS266103AGILITY TELECOM2,348
AS28264ADLLink Provedor de Internet Via Radio LTDA2,335
AS53237TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS1,583
AS266240A2 TELECOM EIRELI - ME987
AS266441LWNET COMERCIO E SERVICOS DE COMUNICACOES LTDA775
AS268865ASLX PROVEDOR DE INTERNET EIRELI728
AS263383L GONZAGA JUNIOR SERVICOS DE INTERNET - ME723
AS263940TOP WEB TELECOM LTDA - ME719
AS267559SERGIO PEREIRA DE SOUZA - ME673
AS53153CINTE TELECOM COMERCIO E SERVICOS LTDA660
AS271600-650
AS264456-584
AS270636-577
AS266410-565
AS270642-535
AS273499-533
AS264338-513
AS263642-510
AS271371-509
AS265313-507
AS265219-500
AS267670-486
AS269646-483
AS273396-474
AS267619-468
AS266377-465
AS270317-463
AS52562-459
AS265387-455
AS270403-454

The 30 most visible of 83.

125 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.