SUBNET MASK

































































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 /8  255.0.0.0 /16   255.255.0.0 /24   255.255.255.0
 /9  255.128.0.0 /17  255.255.128.0 /25  255.255.255.128
/10  255.192.0.0 /18  255.255.192.0 /26  255.255.255.192
/11  255.224.0.0 /19  255.255.224.0 /27  255.255.255.224
/12  255.240.0.0 /20  255.255.240.0 /28  255.255.255.240
/13   255.248.0.0 /21  255.255.248.0 /29  255.255.255.248
 /14  255.252.0.0 /22  255.255.252.0 /30  255.255.255.252
 /15  255.254.0.0 /23 255.255.254.0  /31 255.255.255.254