IP subnet calculator

54.199.12.242-54.199.59.255

54.199.12.242-54.199.12.243
54.199.12.242/31

54.199.12.244-54.199.12.247
54.199.12.244/30

54.199.12.248-54.199.12.255
54.199.12.248/29

54.199.13.0-54.199.13.255
54.199.13.0/24

54.199.14.0-54.199.15.255
54.199.14.0/23

54.199.16.0-54.199.31.255
54.199.16.0/20

54.199.32.0-54.199.47.255
54.199.32.0/20

54.199.48.0-54.199.55.255
54.199.48.0/21

54.199.56.0-54.199.59.255
54.199.56.0/22