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IP subnet calculator

uk ru

51.178.49.230-51.178.49.231
51.178.49.230/31

51.178.49.232-51.178.49.239
51.178.49.232/29

51.178.49.240-51.178.49.255
51.178.49.240/28

51.178.50.0-51.178.51.255
51.178.50.0/23