AS219132: the ons - ONS BILISIM VE TEKNOLOJI HIZMETLERI LTD. STI. network

AS219132 is an internet Autonomous System operated by ons - ONS BILISIM VE TEKNOLOJI HIZMETLERI LTD. STI. (Turkey). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS219132?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS219132 was assigned to ons - ONS BILISIM VE TEKNOLOJI HIZMETLERI LTD. STI. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS219132 currently announces 1 IPv4 block(s), totaling 256 addresses (256 in all), registered in Turkey. Services from ons - ONS BILISIM VE TEKNOLOJI HIZMETLERI LTD. STI. are reached through these addresses.

What it means to see AS219132 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS219132. That means the other end sits on the ons - ONS BILISIM VE TEKNOLOJI HIZMETLERI LTD. STI. 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.