Калькулятор IP подсетей

138.68.40.0-138.68.191.255

138.68.40.0-138.68.47.255
138.68.40.0/21

138.68.48.0-138.68.63.255
138.68.48.0/20

138.68.64.0-138.68.127.255
138.68.64.0/18

138.68.128.0-138.68.191.255
138.68.128.0/18