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IP subnet calculator

uk ru

184.168.123.232-184.168.123.239
184.168.123.232/29

184.168.123.240-184.168.123.255
184.168.123.240/28

184.168.124.0-184.168.127.255
184.168.124.0/22

184.168.128.0-184.168.255.255
184.168.128.0/17