online CIDR and IP subnet calculator : Check host

72.21.198.72-72.21.198.79
72.21.198.72/29

72.21.198.80-72.21.198.95
72.21.198.80/28

72.21.198.96-72.21.198.127
72.21.198.96/27

72.21.198.128-72.21.198.255
72.21.198.128/25

72.21.199.0-72.21.199.255
72.21.199.0/24

72.21.200.0-72.21.207.255
72.21.200.0/21

72.21.208.0-72.21.223.255
72.21.208.0/20

IP subnet calculator 72.21.198.72-72.21.223.255