AS61568: the ALOO TELECOM - FSF TECNOLOGIA SA network

AS61568 is an internet Autonomous System operated by ALOO TELECOM - FSF TECNOLOGIA SA (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS61568?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS61568 was assigned to ALOO TELECOM - FSF TECNOLOGIA SA by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS61568 currently announces 425 IPv4 block(s), totaling about 12.5 thousand addresses (12,544 in all), registered in Brazil. Services from ALOO TELECOM - FSF TECNOLOGIA SA are reached through these addresses.

What it means to see AS61568 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS61568. That means the other end sits on the ALOO TELECOM - FSF TECNOLOGIA SA 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.