AS17816 157.148.136.0/21 CIDR and IP Range Summary.ASN: 17816 - China UnicomHost Count: 2046Addressable IPs: 2048157.148.136.0/24157.148.137.0/24157.148.138.0/24157.148.139.0/24157.148.140.0/24157.148.141.0/24157.148.142.0/24157.148.143.0/24