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IP Subnet Calculator
Calculate IPv4 subnet information online, including network address, broadcast address, subnet mask, usable host range, etc.
Common Subnets
| CIDR | Subnet Mask | Usable Hosts | Usage |
|---|---|---|---|
| /8 | 255.0.0.0 | 16,777,214 | Class A Network |
| /16 | 255.255.0.0 | 65,534 | Class B Network |
| /24 | 255.255.255.0 | 254 | Class C Network |
| /25 | 255.255.255.128 | 126 | Small Network |
| /26 | 255.255.255.192 | 62 | Small Network |
| /27 | 255.255.255.224 | 30 | Small Network |
| /28 | 255.255.255.240 | 14 | Small Network |
| /29 | 255.255.255.248 | 6 | Point-to-Point |
| /30 | 255.255.255.252 | 2 | Point-to-Point |