Skip to content

Autonomous System

AS61621 ยท Norte.Net Telecomunicacoes Ltda

Overview

AS61621 is announced on the Internet: RIPE RIS route collectors currently see 12 IPv4 prefixes and 16 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 3,840 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 14 upstream neighbours (transit providers or peers) and 52 downstream neighbours (customers or networks it carries). Its most visible upstreams are Level 3 Parent, LLC (AS3356), Hurricane Electric LLC (AS6939), and TELEFONICA BRASIL S.A (AS10429). AS61621 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 6:58 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 45.235.160.1, the first address of 45.235.160.0/22. 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 (12 prefixes)

PrefixAddresses
45.235.160.0/221,024
45.235.160.0/23512
45.235.162.0/23512
170.231.208.0/221,024
170.231.208.0/23512
170.231.210.0/23512
177.23.252.0/221,024
177.23.252.0/23512
177.23.252.0/24256
177.23.254.0/23512
186.209.123.0/24256
186.209.222.0/23512

IPv6 prefixes (16 prefixes)

Prefix
2804:4d3c::/32
2804:4d3c::/33
2804:4d3c::/34
2804:4d3c::/35
2804:4d3c:2000::/35
2804:4d3c:4000::/34
2804:4d3c:4000::/35
2804:4d3c:6000::/35
2804:4d3c:6800::/44
2804:4d3c:8000::/33
2804:4d3c:8000::/34
2804:4d3c:8000::/35
2804:4d3c:9007::/48
2804:4d3c:a000::/35
2804:4d3c:c000::/35
2804:4d3c:e000::/35

Neighbours

Upstreams (transit or peers) (14)

ASNetworkVisibility
AS3356Level 3 Parent, LLC13,599
AS6939Hurricane Electric LLC6,776
AS10429TELEFONICA BRASIL S.A808
AS26615TIM S/A318
AS6057Administracion Nacional de Telecomunicaciones202
AS270735COMPUTIZE NETWORK TELECOMUNICACOES LTDA171
AS137409GSL Networks Pty LTD147
AS37468Angola Cables107
AS61626UNIVERSIDADE ESTADUAL DE PONTA GROSSA60
AS269420IST INFORMATICA E TELECOMUNICAO 991DF EIRELI - ME29
AS267943-18
AS7195EDGEUNO S.A.S5
AS18881TELEFONICA BRASIL S.A1
AS53062GGNET TELECOMUNICACOES LTDA1

Downstreams (customers) (52)

ASNetworkVisibility
AS270664A K C PROV DE ACESSO AS REDES DE TEL. E INF EIRELI2,575
AS262342WZNET TELECOM LTDA2,321
AS267284D S SANTOS COMUNICACOES EIRELI ME913
AS52764Delta Broadband Telecom Provedores de Internet Ltd805
AS271294CIDADEI SERVICOS DE COMUNICACAO MULTIMIDIA LTDA ME744
AS262452VCNETWORK SOLUCOES TECNOLOGICA696
AS263264GRUPO CONECTA TELECOM SCM LTDA EPP628
AS270418BOA TELECOMUNICACOES LTDA575
AS266170FUTURETEC TELECOM568
AS262352NOVA TELECOM LTDA559
AS265314-544
AS269450-527
AS264591-515
AS262727AtualNet Provedor de Internet Ltda504
AS268610-501
AS271712-477
AS265903-466
AS61719-464
AS270829-433
AS61753-431
AS270757-431
AS270459-414
AS267122-394
AS268368-387
AS269571-382
AS269320-380
AS265386-378
AS52924-373
AS274617-371
AS267164-363

The 30 most visible of 52.

52 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.