Buy IPv4/v6 Subnet Calculator - Microsoft Store
www.microsoft.com › en-us › pUse IPv4/v6 Subnet Calculator to perform precise calculations fast and easily for IP Subnetting, CIDR, Supernetting, and VLSM. This is an efficient and powerful tool with some advanced capabilities that will help you prevent the common mathematical errors of doing time consuming manual subnet calculations. It supports IPv4 and IPv6 addresses.