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IP subnet calculator

uk ru

178.33.241.0-178.33.241.255
178.33.241.0/24

178.33.242.0-178.33.243.255
178.33.242.0/23

178.33.244.0-178.33.247.255
178.33.244.0/22

178.33.248.0-178.33.255.255
178.33.248.0/21