The EIN for that is listed at the very top-left of my paper 1099-INT ( part of the Payer Information,) that I downloaded as a PDF file from the Treasury Direct website.
For me, it shows up as 53-0197074......can't guarantee yours might be different for some strange reason...but probably the same.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
