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IP subnet calculator
51.195.0.0-51.195.20.255

uk ru

51.195.0.0-51.195.15.255
51.195.0.0/20

51.195.16.0-51.195.19.255
51.195.16.0/22

51.195.20.0-51.195.20.255
51.195.20.0/24