CIDR Calculator
IP address
.
.
.
Netmask
128.0.0.0 - /1
192.0.0.0 - /2
224.0.0.0 - /3
240.0.0.0 - /4
248.0.0.0 - /5
252.0.0.0 - /6
254.0.0.0 - /7
255.0.0.0 - /8
255.128.0.0 - /9
255.192.0.0 - /10
255.224.0.0 - /11
255.240.0.0 - /12
255.248.0.0 - /13
255.252.0.0 - /14
255.254.0.0 - /15
255.255.0.0 - /16
255.255.128.0 - /17
255.255.192.0 - /18
255.255.224.0 - /19
255.255.240.0 - /20
255.255.248.0 - /21
255.255.252.0 - /22
255.255.254.0 - /23
255.255.255.0 - /24
255.255.255.128 - /25
255.255.255.192 - /26
255.255.255.224 - /27
255.255.255.240 - /28
255.255.255.248 - /29
255.255.255.252 - /30
255.255.255.254 - /31
255.255.255.255 - /32
