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IP subnet calculator

uk ru

135.181.89.128-135.181.89.255
135.181.89.128/25

135.181.94.0-135.181.94.127
135.181.94.0/25

135.181.90.0-135.181.91.255
135.181.90.0/23

135.181.92.0-135.181.93.255
135.181.92.0/23