Hello again, I am a Sloanie 13' who went through this last year.
So a couple of you asked me similar questions in private messages. Here is my answer:
Last year, the only notifications were made on the decision day. So I wouldn't expect anything before Feb. 6. I think you get an email at 5pm EST saying that your status has changed on their website, and then you go and check. The whole experience is quite intense, and to make it just a little bit worse for us last year, they had a glitch and only posted the decisions at 7pm EST...
You will also get a phone call from a current student, but that will only be after the online status has changed. That's how it was for international applicants last year - I am not sure about domestic.
Just a disclaimer - this is how it was last year, so I can't guarantee this will be the same process this year.
I would not make any special inquiries if I were you, since these people are very busy at the moment and they might not appreciate it. Just hang in there for just a little bit longer.