AS15962: the OSK-DNI Slovakia network

AS15962 is an internet Autonomous System operated by OSK-DNI Slovakia (Slovakia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS15962?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS15962 was assigned to OSK-DNI Slovakia by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS15962 currently announces 16 IPv4 block(s), totaling about 261.1 thousand addresses (261,120 in all), registered in Slovakia. Services from OSK-DNI Slovakia are reached through these addresses.

What it means to see AS15962 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS15962. That means the other end sits on the OSK-DNI Slovakia network (Slovakia). 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.