AS202870: the AS_DIMENSIONE network

AS202870 is an internet Autonomous System operated by AS_DIMENSIONE (Italy). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS202870?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS202870 was assigned to AS_DIMENSIONE by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS202870 currently announces 15 IPv4 block(s), totaling about 25.3 thousand addresses (25,344 in all), registered in Italy. Services from AS_DIMENSIONE are reached through these addresses.

What it means to see AS202870 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS202870. That means the other end sits on the AS_DIMENSIONE network (Italy). 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.