Subnet Calculator
Calculate subnet information from CIDR notation (e.g., 192.168.1.0/24). This tool provides network address, broadcast address, usable IP range, and subnet mask details.
CIDR Block
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Enter IP address with prefix length (e.g., 10.0.0.0/8, 172.16.0.0/16, 192.168.1.0/24)
Common Subnet Masks (Optional)
Quick reference for common subnet masks
Calculate