AS63646 117.51.128.0/21 CIDR and IP Range Summary.ASN: 63646 - XJKJ Beijing Xiaoju Science and Technology Co. Ltd.Host Count: 2046Addressable IPs: 2048117.51.128.0/24117.51.129.0/24117.51.130.0/24117.51.131.0/24117.51.132.0/24117.51.133.0/24117.51.134.0/24117.51.135.0/24