last updated 2014.12.22 2130 UTC changelog


Korean IP Blocks

Chinese IP Blocks

Chinese/Korean blocks combined


For CN/KR DNS zone files, go here

For an htaccess file to clock CN and KR IPs from visiting your web site, go here

For a Cisco ACL to block all Chinese and Korean net blocks, go here

For Linux firewall (iptables) of all Korean and Chinese net blocks, go here

Want to block Chinese and Korean language emails even if they aren't relayed through mail servers in those countries? Go here

Please feel free to cron the pulls of data from this site. If you do so, please make the interval no more frequent than once every 12 hours (once every 24 hours would be ideal). Site data is updated an average of 2-3 times a week, so pulling the data every hour or every few minutes consumes unnecessary amounts of my bandwidth. If you're pulling the data more frequently than every 12 hours, you can expect to be blocked without warning. If this happens, drop me an email, and you will be unblocked upon assurances that you have adjusted the interval to 12 hours or more.

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