AS137702: the CHINATELECOM-JIANGSU-NANJING-IDC Nanjing, Jiangsu Province, P.R.China. network

AS137702 is an internet Autonomous System operated by CHINATELECOM-JIANGSU-NANJING-IDC Nanjing, Jiangsu Province, P.R.China. (China). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS137702?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS137702 was assigned to CHINATELECOM-JIANGSU-NANJING-IDC Nanjing, Jiangsu Province, P.R.China. by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS137702 currently announces 45 IPv4 block(s), totaling about 82.4 thousand addresses (82,432 in all), registered in China. Services from CHINATELECOM-JIANGSU-NANJING-IDC Nanjing, Jiangsu Province, P.R.China. are reached through these addresses.

What it means to see AS137702 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS137702. That means the other end sits on the CHINATELECOM-JIANGSU-NANJING-IDC Nanjing, Jiangsu Province, P.R.China. 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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