IP subnet calculator

139.15.5.0-139.15.255.255

139.15.5.0-139.15.5.255
139.15.5.0/24

139.15.6.0-139.15.7.255
139.15.6.0/23

139.15.8.0-139.15.15.255
139.15.8.0/21

139.15.16.0-139.15.31.255
139.15.16.0/20

139.15.32.0-139.15.63.255
139.15.32.0/19

139.15.64.0-139.15.127.255
139.15.64.0/18

139.15.128.0-139.15.255.255
139.15.128.0/17