Калькулятор IP подсетей

103.199.8.0-103.199.21.255

103.199.8.0-103.199.15.255
103.199.8.0/21

103.199.16.0-103.199.19.255
103.199.16.0/22

103.199.20.0-103.199.21.255
103.199.20.0/23