CIDR prefix
/10
255.192.0.0
4,194,302 usable hosts · 4,194,304 addresses
The mask for /10 is 255.192.0.0 — 4,194,304 addresses, 4,194,302 usable hosts. Large enterprise and carrier networks.
Mask
255.192.0.0
Wildcard
0.63.255.255
Addresses
4,194,304
Hosts
4,194,302
Worked example: 10.0.0.0/10
Network address10.0.0.0/10
Broadcast address10.63.255.255
First host10.0.0.1
Last host10.63.255.254
FAQ — /10
What is the subnet mask for /10?
The subnet mask for /10 is 255.192.0.0 (wildcard: 0.63.255.255). The first 10 bits are the network part, the remaining 22 are the host part.
How many hosts fit in a /10?
A /10 block holds 4,194,304 addresses, of which 4,194,302 are usable hosts (the network and broadcast addresses are excluded).
How many /10 subnets fit in a /8?
A /8 network divides into 4 /10 subnets.
What is a /10 used for?
Large enterprise and carrier networks.