Do I get a 1 year warranty on the iPhone XR that I bought last Sept. 10th?

Hello j.madden,

Thanks for that info and for choosing the Apple Support Communities. If I understand correctly, you would like to check the coverage from Apple on your iPhone XR. To do this, please follow the steps in this Apple resource to check the coverage on mysupport.apple.com website:

View your Apple devices and AppleCare plans on My Support

Cheers!

If you bought that iPhone directly from Apple or an Apple Authorized Reseller, then the limited 1 year hardware warranty would be effective from the date of purchase.