Sprint has offered in a mailing, with their monthly bill, 2 options related to privacy and the delivery of ads to your mobile device.
One is called the Mobile Advertising Program and is "OPT-IN" so that ads you get are supposed to be more relevant based on your personal info.
The second is an "OPT-OUT" of their Reporting & Analytics Program, which collects info about you(including location info) that Sprint wants to aggregate and sell to other companies.
You can choose your opt-in and opt-out decisions here: »www.sprint.com/mychoices
or call 1-855-596-2397 from your Sprint mobile phone
Attached is the relevant document in the mailing that I scanned in and created the JPEG picture.
A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves money from the public treasury.