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Autonomous System

AS266103 · AGILITY TELECOM

Overview

AS266103 is announced on the Internet: RIPE RIS route collectors currently see 5 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 1,024 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 3 upstream neighbours (transit providers or peers) and 7 downstream neighbours (customers or networks it carries). Its most visible upstreams are BRISANET SERVICOS DE TELECOMUNICACOES S.A (AS28126), DB3 SERVICOS DE TELECOMUNICACOES S.A (AS61832), and SOBRALNET SERVICOS E TELECOMUNICACOES LTDA - ME (AS28368). AS266103 was assigned by LACNIC, and its registration country is Brazil.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:03 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 45.5.144.1, the first address of 45.5.144.0/23. 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 (5 prefixes)

PrefixAddresses
45.5.144.0/23512
45.5.144.0/24256
45.5.145.0/24256
45.5.146.0/24256
45.5.147.0/24256

IPv6 prefixes (1 prefix)

Prefix
2804:3ab0::/32

Neighbours

Upstreams (transit or peers) (3)

ASNetworkVisibility
AS28126BRISANET SERVICOS DE TELECOMUNICACOES S.A2,354
AS61832DB3 SERVICOS DE TELECOMUNICACOES S.A558
AS28368SOBRALNET SERVICOS E TELECOMUNICACOES LTDA - ME1

Downstreams (customers) (7)

ASNetworkVisibility
AS265168M. S. Ferreira Alves474
AS271676ACESSE WIFI469
AS273447ASLAN TELECOM LTDA393
AS263383L GONZAGA JUNIOR SERVICOS DE INTERNET - ME281
AS268883Infortec - Informatica & Tecnologia Ltda - ME280
AS275669OLIVEIRA E NOBRE SERV. DE PROV. DE INTERNET LTDA254
AS270387FJNET-TELECOM -ME1

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.