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IP subnet calculator

uk ru

104.31.68.0-104.31.71.255
104.31.68.0/22

104.31.72.0-104.31.75.255
104.31.72.0/22

104.31.76.0-104.31.77.255
104.31.76.0/23

104.31.78.0-104.31.78.255
104.31.78.0/24