PrismKitNetworkCIDR to IP RangeCIDR to IP RangeRuns in your browserLocalCopy linkMarkdownTurn an IPv4 or IPv6 CIDR block into its address range, or a range back into the fewest CIDR blocks.IPv6 ULA GeneratorRoll a random IPv6 unique local address prefix (fd00::/8) for private networks, following RFC 4193.IP in CIDR CheckerCheck which CIDR blocks contain each IP address in a list, and spot overlapping blocks.