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Table of network masks

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Form Form #Machines

/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

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该日志由 2hei 于2007年05月21日发表在 others 分类下,
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