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IP subnet calculator

uk ru

104.28.16.0-104.28.31.255
104.28.16.0/20

104.28.32.0-104.28.63.255
104.28.32.0/19

104.28.64.0-104.28.127.255
104.28.64.0/18

104.28.128.0-104.28.255.255
104.28.128.0/17

104.29.0.0-104.29.255.255
104.29.0.0/16

104.30.0.0-104.30.255.255
104.30.0.0/16