IP subnet calculator

64.70.19.0-64.70.19.146

64.70.19.0-64.70.19.127
64.70.19.0/25

64.70.19.128-64.70.19.143
64.70.19.128/28

64.70.19.144-64.70.19.145
64.70.19.144/31

64.70.19.146-64.70.19.146
64.70.19.146/32