Калькулятор IP подсетей

213.87.45.0-213.87.55.255

213.87.45.0-213.87.45.255
213.87.45.0/24

213.87.46.0-213.87.47.255
213.87.46.0/23

213.87.48.0-213.87.55.255
213.87.48.0/21