https://www.cnet.com/news/sprint-becomes-last-major-us-carrier-to-stop-selling-location-data/

"Last year we decided to end our arrangements with data aggregators, but assessed that the negative impacts to customers for services like roadside assistance and bank fraud alerts/protection that would result required a different approach," a company spokeswoman said in a statement. "We implemented new, more stringent safeguards to help protect customer location data, but as a result of recent events, we have decided to end our arrangements with data aggregators." 

The telecoms carrier joins competitors T-Mobile, Verizon and AT&T, which also decided to completely end their location data sales by March. Sprint didn't set the same deadline but said it would "end these arrangements in the next several months."