/10 subnet

Mask 255.192.0.0 · 4,194,302 usable hosts · 4,194,304 addresses

/10 at a glance
Subnet mask255.192.0.0
Wildcard mask0.63.255.255
Binary mask11111111.11000000.00000000.00000000
Network / host bits10 / 22
Total addresses4,194,304
Usable hosts4,194,302
Per /8 · /16 · /244 · – · –
Example192.168.10.77/10 → network 192.128.0.0, hosts 192.128.0.1 – 192.191.255.254, broadcast 192.191.255.255

Where /10 is used

A /10 is a less common size; it sits between /9 (8,388,608 addresses) and /11 (2,097,152 addresses).

Block boundaries: a /10 must start at a multiple of 4,194,304 addresses. Calculate any specific address in the subnet calculator.

Neighbouring prefixes

← /9 (twice as large) · /11 (half the size) →

Questions

How many hosts in a /10?
4,194,304 addresses, of which 4,194,302 are usable (the first is the network address and the last is broadcast).
What is the subnet mask for /10?
255.192.0.0. In binary: 11111111.11000000.00000000.00000000. The wildcard (inverse) mask is 0.63.255.255.