online CIDR and IP subnet calculator : Check host

144.217.39.0-144.217.39.255
144.217.39.0/24

144.217.40.0-144.217.47.255
144.217.40.0/21

144.217.48.0-144.217.63.255
144.217.48.0/20

144.217.64.0-144.217.127.255
144.217.64.0/18

144.217.128.0-144.217.143.255
144.217.128.0/20

144.217.144.0-144.217.145.255
144.217.144.0/23

144.217.146.0-144.217.146.255
144.217.146.0/24

IP subnet calculator 144.217.39.0-144.217.146.255