AS31520: the DATAGROUP-RETAIL network

AS31520 is an internet Autonomous System operated by DATAGROUP-RETAIL (Ukraine). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS31520?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS31520 was assigned to DATAGROUP-RETAIL by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS31520 currently announces 28 IPv4 block(s), totaling about 91.4 thousand addresses (91,392 in all), registered in Ukraine. Services from DATAGROUP-RETAIL are reached through these addresses.

What it means to see AS31520 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS31520. That means the other end sits on the DATAGROUP-RETAIL network (Ukraine). 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.