AS20485: the TRANSTELECOM Moscow, Russia network

AS20485 is an internet Autonomous System operated by TRANSTELECOM Moscow, Russia (Russia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS20485?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS20485 was assigned to TRANSTELECOM Moscow, Russia by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS20485 currently announces 67 IPv4 block(s), totaling about 322.3 thousand addresses (322,304 in all), registered in Russia. Services from TRANSTELECOM Moscow, Russia are reached through these addresses.

What it means to see AS20485 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS20485. That means the other end sits on the TRANSTELECOM Moscow, Russia network (Russia). 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.