My network administrator has recommend that we redirect all traffic for that domain to another IP that is being null-routed as we speak and then dropping the null-route on the primary IP. Depending on how long DNS takes to update this will offer the fastest resolution to the issue without forcing everybody to modify their DNS.
And for the record, you are welcome to respond in this thread and ask any questions you may have.
The settings have taken effect and we are seeing that all services are coming back online - if you see that your site is back online by all means post and let us know.
I am reporting that service seems to have returned but it is now abnormally slow (according to the server status page Atlantis seems to have a heavy load.).