Accepts: CIDR prefix (/24), subnet mask (255.255.255.0), or wildcard mask (0.0.0.255)
CIDR Prefix
/24
Subnet Mask (Dotted Decimal)
255.255.255.0
Wildcard Mask (Inverse)
0.0.0.255
Hex Mask
0xFFFFFF00
Network Bits
24
Host Bits
8
Available Hosts
254
Total Addresses
256

Binary Representation

11111111.11111111.11111111.00000000
Blue = Network bits (1s)  |  Green = Host bits (0s)

Common Subnet Masks Reference

CIDR Subnet Mask Wildcard Hosts Class