Depends, used to get them fairly often, I don’t get them at all these days. I stoped giving my number out on signups unless it’s something where they actually might have a good reason to call me, like a doctors office or something.

Basically no laws, at least not enforceable ones, for having your number shared if you give it to someone. Companies and website will often ask for them as part of sign up, and then sell them off to data brokers for money. Cellphone carriers have been known to sell location data tied to phone numbers to data brokers as well. Lot of campaigns or local party organizations build volunteer and donor lists, and will share those between each other as well, makes it really frustrating to try and get involved with a campaign.

All of it results in a ton of spam, scams, and ads, only real solution Is to refuse to give out your phone number unless absolutely necessary, use temporary voip numbers when it’s insisted upon by something that has no business texting you.