AS274001: the TELECOMUNICACIONES DEL SUR SAS network

AS274001 is an internet Autonomous System operated by TELECOMUNICACIONES DEL SUR SAS (Colombia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS274001?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS274001 was assigned to TELECOMUNICACIONES DEL SUR SAS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS274001 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Colombia. Services from TELECOMUNICACIONES DEL SUR SAS are reached through these addresses.

What it means to see AS274001 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS274001. That means the other end sits on the TELECOMUNICACIONES DEL SUR SAS 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.