Source ISP ip ranges

Looking for a source to find out Australian ISP end user IP Ranges - Home internet ips etc
for example * or * has both end user and CND ip addresses.
i would like to block all end user ip ranges but not block CND's etc
    indent preformatted text by 4 spaces
interested in how you would go about this task.
below is a range i blocked as i thought it was an ip range for home internet but as you can see its facebook CDN.

*@pop-os:~$ nslookup 

Non-authoritative answer:	canonical name =
Address: 2407:8800:bf00:33:face:b00c:0:a7

dig -x +short