It's is hard to tell, but if you do some comparisons on trackitt.com, it might give you a knowledge of how long it will take. As at now, it is taking over 8 weeks. Info on trackitt.com shows that, none of the people who had applied at the same time as you have received AOR yet, except one who had applied on Oct. 15. How did he get his before all the guys who had applied before him? Maybe a little bit of luck. But don't worry, It will come soon. Good Luck!!