AS273202: the ZONALIBRE INGENIERIA S.A.S. network

AS273202 is an internet Autonomous System operated by ZONALIBRE INGENIERIA S.A.S. (Colombia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS273202?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS273202 was assigned to ZONALIBRE INGENIERIA S.A.S. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS273202 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Colombia. Services from ZONALIBRE INGENIERIA S.A.S. are reached through these addresses.

What it means to see AS273202 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS273202. That means the other end sits on the ZONALIBRE INGENIERIA S.A.S. network (Colombia). 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.