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Blocking Networks in China Using Aggregated Network List

The nation of China has some of the most prolific spamming and hacking networks in the world. More than 99% of the traffic we see originating from China is malicious and dangerous. As such we have decided to provide an aggregated IPv4 network list of networks in China. This list is accurate as of November 21, 2011.

Aggregating networks in China reduces the number of networks from 3,459 down to 1,939. This is approximately a 45% reduction in size . We remind you that this list is for the purpose of creating an Access Control List, not for routing. Here is the list in network range format:

Aggregated networks in China