PrismKitNetworkIPv4 Subnet CalculatorIPv4 Subnet CalculatorRuns in your browserLocalCopy linkMarkdownBreak an IPv4 CIDR block down into its network and broadcast address, usable host range, mask, and size.IPv4 Address ConverterSee an IPv4 address written as decimal, hexadecimal, binary, and its IPv6-mapped form.IPv4 Range ExpanderEnter the first and last address of a range and get the smallest CIDR block that covers it.