CIDR prefix
/32
255.255.255.255
1 usable hosts · 1 addresses
The mask for /32 is 255.255.255.255 — 1 addresses, 1 usable hosts. A single host — a host route (255.255.255.255).
Mask
255.255.255.255
Wildcard
0.0.0.0
Addresses
1
Hosts
1
Worked example: 192.168.0.0/32
Network address192.168.0.0/32
Broadcast address—
First host192.168.0.0
Last host192.168.0.0
FAQ — /32
What is the subnet mask for /32?
The subnet mask for /32 is 255.255.255.255 (wildcard: 0.0.0.0). The first 32 bits are the network part, the remaining 0 are the host part.
How many hosts fit in a /32?
A /32 block is a single address — a host route for one specific host.
How many /32 subnets fit in a /24?
A /24 network divides into 256 /32 subnets.
What is a /32 used for?
A single host — a host route (255.255.255.255).