AS1916: the Rede Nacional de Ensino e Pesquisa network

AS1916 is an internet Autonomous System operated by Rede Nacional de Ensino e Pesquisa (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS1916?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS1916 was assigned to Rede Nacional de Ensino e Pesquisa by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS1916 currently announces 86 IPv4 block(s), totaling about 661 thousand addresses (660,960 in all), registered in Brazil. Services from Rede Nacional de Ensino e Pesquisa are reached through these addresses.

What it means to see AS1916 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS1916. That means the other end sits on the Rede Nacional de Ensino e Pesquisa network (Brazil). It can be legitimate — a cloud service, an ISP, a CDN — or an unexpected connection worth checking.

How to see every connection and network your devices reach

Tracing one connection's ASN at a time is tedious. Sentinela, by PC Monitor, maps the devices on your network, shows what is exposed to the internet and helps flag suspicious connections and devices — running on your Windows. Meet Sentinela.