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IP subnet calculator

uk ru

172.67.48.0-172.67.63.255
172.67.48.0/20

172.67.64.0-172.67.127.255
172.67.64.0/18

172.67.128.0-172.67.191.255
172.67.128.0/18

172.67.192.0-172.67.207.255
172.67.192.0/20