Калькулятор IP подсетей

54.90.232.0-54.90.248.255

54.90.232.0-54.90.239.255
54.90.232.0/21

54.90.240.0-54.90.247.255
54.90.240.0/21

54.90.248.0-54.90.248.255
54.90.248.0/24