The public IP address 223.166.151.21 is located in China. It is assigned to the ISP China Unicom and sub-delegated to China Unicom Shanghai FuTe IDC network. The address belongs to ASN 140979 which is delegated to China Unicom Shanghai FuTe IDC network. Please have a look at the tables below for full details about 223.166.151.21, or use the IP Lookup tool to find the approximate IP location for any public IP address.