AS34038: the COMTEL-TMN-AS network

AS34038 is an internet Autonomous System operated by COMTEL-TMN-AS (Russia). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS34038?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS34038 was assigned to COMTEL-TMN-AS by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS34038 currently announces 11 IPv4 block(s), totaling about 21.8 thousand addresses (21,760 in all), registered in Russia. Services from COMTEL-TMN-AS are reached through these addresses.

What it means to see AS34038 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS34038. That means the other end sits on the COMTEL-TMN-AS 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.