Get IP address range allocated to Hong Kong

wget -q -O- http://ftp.apnic.net/stats/apnic/delegated-apnic-latest | grep '^apnic|HK|ipv4' |awk -F\| '/^apnic|HK|ipv4/ {print $4 "/" log($5)/log(2)}'| less

ref:
How to retrieve the IPv4 address ranges allocated to Hong Kong? | [狗爺語錄]
IPv4位址統計表