@xoxo xoxo You have to look for it on the USCIS website, go to the page where you download the form I765 or I131 and on the bottom of the page there will be a link that says “where to file”. Just click on that and that’s it. Or you can type on Google “where to file I131” for example and then links to the USCIS website will show up. If you are filling both I131 and I765 together you have to send the envelope to the address for the I131 form. That’s what it says on the USCIS website. You’ll see. Good luck. It’s pretty easy. You can do it.

@xoxo xoxo I made it easier for you. https://www.uscis.gov/i-131-addresses