# download from apnic
rm -f delegated-apnic-latest
wget http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest
# IPs allocated to china.
grep 'apnic|CN|ipv4|' delegated-apnic-latest | cut -f 4 -d'|' > delegated-apnic-CN
# get detail of echo IP from apnic database.
rm -f apnic_CN.txt
while read ip
do
# query apnic database
echo "query who is $ip"
whois -h whois.apnic.net $ip > tmp.txt
grep inetnum tmp.txt >> apnic_CN.txt # IP range
grep netname tmp.txt >> apnic_CN.txt # netname which include sp information
grep descr tmp.txt >> apnic_CN.txt # description which include province information
echo "" >> apnic_CN.txt
done < delegated-apnic-CN
# clean up
rm -f tmp.txt
rm -f delegated-apnic-latest
rm -f delegated-apnic-CN
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