AS4816: the CHINANET-IDC-GD China Telecom Group network

AS4816 is an internet Autonomous System operated by CHINANET-IDC-GD China Telecom Group (China). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS4816?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS4816 was assigned to CHINANET-IDC-GD China Telecom Group by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS4816 currently announces 23 IPv4 block(s), totaling about 47.1 thousand addresses (47,104 in all), registered in China. Services from CHINANET-IDC-GD China Telecom Group are reached through these addresses.

What it means to see AS4816 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS4816. That means the other end sits on the CHINANET-IDC-GD China Telecom Group 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.