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netmask
Table of netmask
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/8 /255.0.0.0 16,777,215 Used to be called an `A-class'
/16 /255.255.0.0 65,535 Used to be called an `B-class'
/17 /255.255.128.0 32,767
/18 /255.255.192.0 16,383
/19 /255.255.224.0 8,191
/20 /255.255.240.0 4,095
/21 /255.255.248.0 2,047
/22 /255.255.252.0 1,023
/23 /255.255.254.0 511
/24 /255.255.255.0 255 Used to be called a `C-class'
/25 /255.255.255.128 127
/26 /255.255.255.192 63
/27 /255.255.255.224 31
/28 /255.255.255.240 15
/29 /255.255.255.248 7
/30 /255.255.255.252 3
last modified Nov 16, 2004 at 20:03
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