online CIDR and IP subnet calculator : Check host

51.138.38.198-51.138.38.199
51.138.38.198/31

51.138.38.200-51.138.38.207
51.138.38.200/29

51.138.38.208-51.138.38.223
51.138.38.208/28

51.138.38.224-51.138.38.255
51.138.38.224/27

51.138.39.0-51.138.39.255
51.138.39.0/24

51.138.40.0-51.138.47.255
51.138.40.0/21

51.138.48.0-51.138.63.255
51.138.48.0/20

51.138.64.0-51.138.127.255
51.138.64.0/18

IP subnet calculator 51.138.38.198-51.138.127.255