In this episode of "Damn My Mailbox Is Full Of Junk And I Don't Want It!", The Princess is calling the Austin-American Statesman to opt-out of the Print Plus advertising junk. Their main switchboard number is 445-3500, and they have transferred me to circulation. Waiting...ooh, look, disconnected! Take two...hey, a person! She says it will take up to six weeks. And she volunteered quite cheerfully that I could also be on a "no knock" list and "no call" list for people trying to sell me the paper.
And check out https://www.optoutprescreen.com/ as an alternative to the opt-out phone number for credit-bureau-generated mailing lists, including credit card offers. You can do a 5-year or permanent opt-out.