online CIDR and IP subnet calculator : Check host

123.5.214.0-123.5.215.255
123.5.214.0/23

123.5.216.0-123.5.223.255
123.5.216.0/21

123.5.224.0-123.5.255.255
123.5.224.0/19

123.7.14.0-123.7.14.0
123.7.14.0/32

123.7.0.0-123.7.7.255
123.7.0.0/21

123.7.8.0-123.7.11.255
123.7.8.0/22

123.7.12.0-123.7.13.255
123.7.12.0/23

123.6.0.0-123.6.255.255
123.6.0.0/16

IP subnet calculator 123.5.214.0-123.7.14.0