You will need to follow up with the IRS to have them trace it and re-issue it to your current address. Have you filed a 2020 return with your new address----or changed you address with the IRS yet?
https://www.irs.gov/faqs/irs-procedures/address-changes/address-changes
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
