Калькулятор IP подсетей

18.239.30.0-18.239.43.255

18.239.30.0-18.239.31.255
18.239.30.0/23

18.239.32.0-18.239.39.255
18.239.32.0/21

18.239.40.0-18.239.43.255
18.239.40.0/22