After checking out the above info, this may help
http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/How-to-Apply-for- an-EIN
After you read and understand the above, you need to download this:-
http://www.irs.gov/pub/irs-pdf/fss4.pdf
Download the PDF, print it out and fill in the form... have it with you when you telephone - the agent will ask if you have it - it saves time and confusion and they will refer to each question by its number.
Once connected to an agent it can take about 10 - 15minutes depending on IF you have the correct information.
The agent will tell you the EIN number allocate, so have a pen and paper ready.
It will take about 2 weeks to be confirmed for Apple to find it and you also recieve a letter by post.
1-267-941-1099 USA IRS Telephone - ( best time is about 6.30pm USA time)
Without the EIN number, you cannot open a paid books account - you can start the application process and checking the Contracts and Banking section in iTunes Connect - BUT the account will not be accpeted in full without the EIN