Table of IPv4 Network Masks

This network masks table works interactively. You can display mask addresses normally, in binary mode, hexadecimal mode or as integer numbers.

Table of IPv6 network masks

/32 = 255.255.255.255
/31 = 255.255.255.254
/30 = 255.255.255.252
/29 = 255.255.255.248
/28 = 255.255.255.240
/27 = 255.255.255.224
/26 = 255.255.255.192
/25 = 255.255.255.128
/24 = 255.255.255.0
/23 = 255.255.254.0
/22 = 255.255.252.0
/21 = 255.255.248.0
/20 = 255.255.240.0
/19 = 255.255.224.0
/18 = 255.255.192.0
/17 = 255.255.128.0
/16 = 255.255.0.0
/15 = 255.254.0.0
/14 = 255.252.0.0
/13 = 255.248.0.0
/12 = 255.240.0.0
/11 = 255.224.0.0
/10 = 255.192.0.0
/9  = 255.128.0.0
/8  = 255.0.0.0
/7  = 254.0.0.0
/6  = 252.0.0.0
/5  = 248.0.0.0
/4  = 240.0.0.0
/3  = 224.0.0.0
/2  = 192.0.0.0
/1  = 128.0.0.0
/0  = 0.0.0.0