online CIDR and IP subnet calculator : Check host

223.255.153.40-223.255.153.47
223.255.153.40/29

223.255.153.48-223.255.153.63
223.255.153.48/28

223.255.153.64-223.255.153.127
223.255.153.64/26

223.255.153.128-223.255.153.255
223.255.153.128/25

223.255.154.0-223.255.155.255
223.255.154.0/23

223.255.156.0-223.255.159.255
223.255.156.0/22

223.255.160.0-223.255.161.255
223.255.160.0/23

IP subnet calculator 223.255.153.40-223.255.161.255