CIDR to IP Range Calculator
Enter any CIDR block to instantly convert it into a complete IP address range showing the first IP, last IP, and total number of addresses. Browse the full list of IPs in your subnet range, export results, and verify your CIDR to IP range conversions for firewall rules, access control lists, and network allocation planning. The fastest way to calculate cidr for a firewall rule is to enter the network and mask and copy the resulting /prefix.
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IP Range Details
IP Address List
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Explore these related tools for subnet calculation and IP address management. The visual subnet calculator renders a graphical map of how a network address block is divided into subnets — interactive and exportable.
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