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IP subnet calculator
140.165.100.0-140.165.255.255

uk ru

140.165.100.0-140.165.103.255
140.165.100.0/22

140.165.104.0-140.165.111.255
140.165.104.0/21

140.165.112.0-140.165.127.255
140.165.112.0/20

140.165.128.0-140.165.255.255
140.165.128.0/17