QuackyardCIDR & Subnet Calculator
Work out what an IPv4 or IPv6 block covers, split it into subnets, and check whether an address is inside it.
192.168.1.0/24 Private (RFC 1918)
| Network | 192.168.1.0/24 |
|---|---|
| Broadcast | 192.168.1.255 |
| Netmask | 255.255.255.0 |
| Wildcard | 0.0.0.255 |
| Mask, binary | 11111111.11111111.11111111.00000000 |
| First host | 192.168.1.1 |
| Last host | 192.168.1.254 |
| Addresses | 256 |
| Usable hosts | 254 |
| Kind | Private (RFC 1918) |
Enter a longer prefix to list the subnets, like /25.
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