AS212301: the MAKDOS Makdos Bilisim Teknolojileri network

AS212301 is an internet Autonomous System operated by MAKDOS Makdos Bilisim Teknolojileri (Turkey). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS212301?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS212301 was assigned to MAKDOS Makdos Bilisim Teknolojileri by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS212301 currently announces 10 IPv4 block(s), totaling about 5.1 thousand addresses (5,120 in all), registered in Turkey. Services from MAKDOS Makdos Bilisim Teknolojileri are reached through these addresses.

What it means to see AS212301 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS212301. That means the other end sits on the MAKDOS Makdos Bilisim Teknolojileri network (Turkey). 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.