InSearch
It probably would be between a 100 and a 150 (i would think closer to the 150 factoring in the yield).
Would it be correct to assume that successful applicants based in the US should all receive a call today?
I made that assumption in the EA round, and was very happily proven wrong when I got my phonecall on the deadline day at around noon....so don't lose hope!
If I recall correctly, there were quite a few calls (US and international) on the day of the deadline.
Good Luck!!