CIDR calculator
IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.
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29-02-2024: An IPv6-specific error snuck into the CIDR tool. It has been fixed. I apologize for any inconvenience on this matter. Sorry. |