Калькулятор IP подсетей

111.119.208.0-111.119.221.255

111.119.208.0-111.119.215.255
111.119.208.0/21

111.119.216.0-111.119.219.255
111.119.216.0/22

111.119.220.0-111.119.221.255
111.119.220.0/23