Mask            Number of addresses printed
/32 255.255.255.255 0
/31 255.255.255.254 0
/30 255.255.255.252 2
/29 255.255.255.248 6
/28 255.255.255.240 14
/27 255.255.255.240 30
/26 255.255.255.240 62
/25 255.255.255.240 126
/24 255.255.255.0   254
...
/16 255.255.0.0     65,534
...
/8  255.0.0.0       16,777,214
...
/3  224.0.0.0       536,870,910  
/2  192.0.0.0       1,073,741,822
/1  128.0.0.0       2,147,483,646
/0  0.0.0.0         4,294,967,294