http://www.washingtonpost.com/blogs/the-switch/wp/2018/06/19/verizon-will-suspend-sales-of-customer-location-data-after-a-prison-phone-company-was-caught-misusing-it/

Verizon and AT&T will no longer share its customers' location information with several third-party companies who failed to handle the data appropriately, the companies said Tuesday.

The move to cut off access follows an investigation by Sen. Ron Wyden (D-Ore.) into the commercial relationships between Verizon; a pair of obscure data vendors, LocationSmart and Zumigo; and those companies' corporate customers.