AS52888: the UNIVERSIDADE FEDERAL DE SAO CARLOS network

AS52888 is an internet Autonomous System operated by UNIVERSIDADE FEDERAL DE SAO CARLOS (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS52888?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS52888 was assigned to UNIVERSIDADE FEDERAL DE SAO CARLOS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS52888 currently announces 6 IPv4 block(s), totaling about 28.2 thousand addresses (28,160 in all), registered in Brazil. Services from UNIVERSIDADE FEDERAL DE SAO CARLOS are reached through these addresses.

What it means to see AS52888 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS52888. That means the other end sits on the UNIVERSIDADE FEDERAL DE SAO CARLOS 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.