It’s not limited to one specific mortgage company or broker. You can do an opt out from the prescreened calls here opt out for 5 years online, or permanently via mail.

Don’t look at your shirt, shoes, socks, pants, hat, water bottle, or even you camera either. If you packed your lunch, you likely see a brand there too in the wrapper.

They also don’t need to be visible, or exist at all for that matter. I despise ads.