$ sudo nmap -sn 63.150.141.224-231
[sudo] password for alice:
Starting Nmap 7.40 ( https://nmap.org ) at 2021-02-11 06:41 CET
Nmap done: 8 IP addresses (0 hosts up) scanned in 9.15 seconds $ sudo nmap -sn 63.150.141.224-231
[sudo] password for alice:
Starting Nmap 7.40 ( https://nmap.org ) at 2021-02-11 06:41 CET
Nmap done: 8 IP addresses (0 hosts up) scanned in 9.15 secondsThe links contain the IP ranges (4 and 6). Testing all those should be sufficient.
There are some small ranges in RIPE too: https://apps.db.ripe.net/db-web-ui/query?searchtext=facebook