AS41887: the PROLOCATION Prolocation network

AS41887 is an internet Autonomous System operated by PROLOCATION Prolocation (the Netherlands). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS41887?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS41887 was assigned to PROLOCATION Prolocation by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS41887 currently announces 10 IPv4 block(s), totaling about 17.7 thousand addresses (17,664 in all), registered in the Netherlands. Services from PROLOCATION Prolocation are reached through these addresses.

What it means to see AS41887 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS41887. That means the other end sits on the PROLOCATION Prolocation network (the Netherlands). 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.