AS20631 81.163.64.0/21 CIDR and IP Range Summary.ASN: 20631 - Artecom LtdHost Count: 2046Addressable IPs: 204881.163.64.0/2481.163.65.0/2481.163.66.0/2481.163.67.0/2481.163.68.0/2481.163.69.0/2481.163.70.0/2481.163.71.0/24