AS28623: the PONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL network

AS28623 is an internet Autonomous System operated by PONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL (Brazil). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS28623?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS28623 was assigned to PONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS28623 currently announces 3 IPv4 block(s), totaling about 8.2 thousand addresses (8,192 in all), registered in Brazil. Services from PONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL are reached through these addresses.

What it means to see AS28623 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS28623. That means the other end sits on the PONTIFICIA UNIVERSID CATOLICA DO RIO GRANDE DO SUL 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.