I relocated during the pandemic and brought my existing (Los Angeles area code) number to the SF Bay Area with Mint Mobile. I really don't get local area code spam after five years. The few calls that do happen, I can trace by topic back to local business interactions I've had.

I'm not sure whether to think the Mint MVNO on T-Mobile is better about privacy than T-Mobile. Or do you have some phone apps that are really the guilty party linking your phone number to your travel locations...?