online CIDR and IP subnet calculator : Check host

66.221.34.127-66.221.34.127
66.221.34.127/32

66.221.34.128-66.221.34.255
66.221.34.128/25

66.221.35.0-66.221.35.255
66.221.35.0/24

66.221.36.0-66.221.39.255
66.221.36.0/22

66.221.40.0-66.221.47.255
66.221.40.0/21

66.221.48.0-66.221.63.255
66.221.48.0/20

66.221.64.0-66.221.127.255
66.221.64.0/18

66.221.128.0-66.221.255.255
66.221.128.0/17

IP subnet calculator 66.221.34.127-66.221.255.255