IP subnet calculator

13.248.128.0-13.249.111.255

13.248.128.0-13.248.255.255
13.248.128.0/17

13.249.0.0-13.249.63.255
13.249.0.0/18

13.249.64.0-13.249.95.255
13.249.64.0/19

13.249.96.0-13.249.111.255
13.249.96.0/20