Thank you so very much for your response.
Unfortunately, it would seem that all TACs are currently closed due to the COVID-19 crisis.
Moreover, when I call the telephone number indicated on the IRS FAQ page, I am advised that telephone information service is currently suspended due to staff shortage.
Can I quickly ask, if you have any idea whether the fact that I am exempt from federal income taxation typically also means that I am exempt from state income taxes?
If so, my plan of action would be, to file for an extension, to wait until I am able to obtain all required documentation, and to file my 1040-NR-EZ with a W-7 attached. I'd probably also file my state taxes with a W-7 attached or simply wait until I have my ITIN. As far as I understood, this should not be problematic provided that I do not owe any state taxes.
Many thanks.
