online CIDR and IP subnet calculator : Check host

138.246.0.0-138.246.127.255
138.246.0.0/17

138.246.128.0-138.246.191.255
138.246.128.0/18

138.246.192.0-138.246.223.255
138.246.192.0/19

138.246.224.0-138.246.239.255
138.246.224.0/20

138.246.240.0-138.246.247.255
138.246.240.0/21

138.246.248.0-138.246.251.255
138.246.248.0/22

138.246.252.0-138.246.252.255
138.246.252.0/24

IP subnet calculator 138.246.0.0-138.246.252.255