IP subnet calculator

51.77.64.0-51.77.70.191

51.77.70.0-51.77.70.127
51.77.70.0/25

51.77.70.128-51.77.70.191
51.77.70.128/26

51.77.64.0-51.77.67.255
51.77.64.0/22

51.77.68.0-51.77.69.255
51.77.68.0/23