Калькулятор IP подсетей

61.19.240.0-61.19.252.255

61.19.240.0-61.19.247.255
61.19.240.0/21

61.19.248.0-61.19.251.255
61.19.248.0/22

61.19.252.0-61.19.252.255
61.19.252.0/24