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IPv4 Adress to CIDR Notation

Converts IPv4 Adress Ranges to CIDR Notation
This tool will convert an IPv4 address range into CIDR format. CIDR (Classless Inter-Domain Routing) format is a compact format of expression an IP address along with it routing information. A CIDR notation of is a representation of IPv4 addresses with the range of to To use this tool, enter two IPv4 addresses below in dotted format (e.g.,

IP #1:   IP #2: