IP subnet calculator

64.78.22.0-64.78.41.255

64.78.22.0-64.78.23.255
64.78.22.0/23

64.78.24.0-64.78.31.255
64.78.24.0/21

64.78.32.0-64.78.39.255
64.78.32.0/21

64.78.40.0-64.78.41.255
64.78.40.0/23