AS57052: the BIOWAREONLINEEU1 network

AS57052 is an internet Autonomous System operated by BIOWAREONLINEEU1 (Ireland). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS57052?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS57052 was assigned to BIOWAREONLINEEU1 by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS57052 currently announces 8 IPv4 block(s), totaling about 11.3 thousand addresses (11,264 in all), registered in Ireland. Services from BIOWAREONLINEEU1 are reached through these addresses.

What it means to see AS57052 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS57052. That means the other end sits on the BIOWAREONLINEEU1 network (Ireland). 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.