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Калькулятор IP подсетей
204.121.0.0-204.121.140.255

uk ru

204.121.0.0-204.121.127.255
204.121.0.0/17

204.121.128.0-204.121.135.255
204.121.128.0/21

204.121.136.0-204.121.139.255
204.121.136.0/22

204.121.140.0-204.121.140.255
204.121.140.0/24