Not saying this is anything, but maybe someone else on here will see this and have a lightbulb moment...
All 3 DNS records for Facebook, Whatsapp and Instagram were updated on Sep 22.
https://whois.domaintools.com/facebook.com
https://whois.domaintools.com/whatsapp.com
https://whois.domaintools.com/instagram.com
I also noticed the same date on the other domains:
https://whois.domaintools.com/whatsapp.net
https://whois.domaintools.com/facebook.net
I am sure there are others. This could be just a simple Zuckerberg and Co. had something they changed/updated on that date for the entire FB empire, but I find a massive outage a few days (12) later to be really strange.
I do not have a whois premium account so I am unable to dig much further than this. Anything interesting happen on Sep 22?
Dang! This is helpful too!! So does this mean Facebook is all gone now? Will people’s profiles be restored or will Facebook essentially have to start over?
All the data is still there. Just no way to access it right now. They "just" have to restore the routing information with the peers, and it should be back to normal. If they still have the data to restore, that is.
It's strange that it takes them so long though.
edit and, it's back!