Калькулятор IP подсетей

31.220.81.128-31.220.87.255

31.220.81.128-31.220.81.255
31.220.81.128/25

31.220.82.0-31.220.83.255
31.220.82.0/23

31.220.84.0-31.220.87.255
31.220.84.0/22