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IP subnet calculator
148.72.68.0-148.72.87.255

uk ru

148.72.68.0-148.72.71.255
148.72.68.0/22

148.72.72.0-148.72.79.255
148.72.72.0/21

148.72.80.0-148.72.87.255
148.72.80.0/21