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IP subnet calculator

uk ru

178.17.172.0-178.17.172.127
178.17.172.0/25

178.17.172.128-178.17.172.143
178.17.172.128/28

178.17.169.0-178.17.169.255
178.17.169.0/24

178.17.170.0-178.17.171.255
178.17.170.0/23