yeah we are seeing same, appears that none of their NS are responding to dns queries.... affecting all their properties, whatsapp, facebook, instagram etc 

chris

On Mon, Oct 4, 2021 at 12:06 PM Eric Kuhnke <eric.kuhnke@gmail.com> wrote:
https://downdetector.com/status/facebook/

Normally not worth mentioning random $service having an outage here, but this will undoubtedly generate a large volume of customer service calls.

Appears to be failure in DNS resolution.