AS139201: the CHINANET-JIANGXI-JIUJIANG-IDC Jiangxi Jiujiang IDC network

AS139201 is an internet Autonomous System operated by CHINANET-JIANGXI-JIUJIANG-IDC Jiangxi Jiujiang IDC (China). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS139201?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS139201 was assigned to CHINANET-JIANGXI-JIUJIANG-IDC Jiangxi Jiujiang IDC by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS139201 currently announces 20 IPv4 block(s), totaling about 31 thousand addresses (30,976 in all), registered in China. Services from CHINANET-JIANGXI-JIUJIANG-IDC Jiangxi Jiujiang IDC are reached through these addresses.

What it means to see AS139201 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS139201. That means the other end sits on the CHINANET-JIANGXI-JIUJIANG-IDC Jiangxi Jiujiang IDC 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

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