Калькулятор IP подсетей

104.18.120.0-104.19.63.255

104.18.120.0-104.18.127.255
104.18.120.0/21

104.18.128.0-104.18.255.255
104.18.128.0/17

104.19.0.0-104.19.63.255
104.19.0.0/18