AS39299: the GL-UA Kiev, Ukraine network

AS39299 is an internet Autonomous System operated by GL-UA Kiev, Ukraine (Ukraine). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS39299?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS39299 was assigned to GL-UA Kiev, Ukraine by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS39299 currently announces 2 IPv4 block(s), totaling 768 addresses (768 in all), registered in Ukraine. Services from GL-UA Kiev, Ukraine are reached through these addresses.

What it means to see AS39299 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS39299. That means the other end sits on the GL-UA Kiev, Ukraine 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.