AS23140: the Universidad de Chile network

AS23140 is an internet Autonomous System operated by Universidad de Chile (Chile). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS23140?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS23140 was assigned to Universidad de Chile by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS23140 currently announces 5 IPv4 block(s), totaling about 21 thousand addresses (20,992 in all), registered in Chile. Services from Universidad de Chile are reached through these addresses.

What it means to see AS23140 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS23140. That means the other end sits on the Universidad de Chile network (Chile). 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.