All major ISPs denied selling or sharing their users' browsing histories and other sensitive information in 2017, when they convinced Congress and President Trump to prevent implementation of broadband privacy rules. But since then, it has been reported that T-Mobile, Sprint, and AT&T were selling their mobile customers' location information to third-party data brokers despite promising not to do so.
FTC investigates whether ISPs sell your browsing history and location data
This one's a give me. Yep.