AS134543: the UNICOM-DONGGUAN-IDC China Unicom Guangdong IP network network

AS134543 is an internet Autonomous System operated by UNICOM-DONGGUAN-IDC China Unicom Guangdong IP network (China). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS134543?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS134543 was assigned to UNICOM-DONGGUAN-IDC China Unicom Guangdong IP network by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS134543 currently announces 35 IPv4 block(s), totaling about 50.4 thousand addresses (50,432 in all), registered in China. Services from UNICOM-DONGGUAN-IDC China Unicom Guangdong IP network are reached through these addresses.

What it means to see AS134543 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS134543. That means the other end sits on the UNICOM-DONGGUAN-IDC China Unicom Guangdong IP network network (China). 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.