Calculate IP ranges, subnet masks, and broadcast addresses from CIDR notation
CIDR Subnet Calculator
CIDR Subnet Calculator
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CIDR (Classless Inter-Domain Routing) notation specifies an IP address range using a prefix length. For example, 192.168.1.0/24 represents 256 IP addresses (192.168.1.0 to 192.168.1.255). The /24 indicates the first 24 bits are the network portion.