Калькулятор IP подсетей

81.2.233.0-81.2.255.255

81.2.233.0-81.2.233.255
81.2.233.0/24

81.2.234.0-81.2.235.255
81.2.234.0/23

81.2.236.0-81.2.239.255
81.2.236.0/22

81.2.240.0-81.2.255.255
81.2.240.0/20