House Republicans question telecoms on location tracking

NEW YORK (AP) — Several House Republicans asked T-Mobile, AT&T, Verizon and Sprint how they share their users' cellphone location data, citing a recent report that telecoms are selling that information to shadowy companies without customer knowledge.

The lawmakers said Wednesday that they are troubled because it is not the first report of these types of data-sharing practices. They also sent questions to data brokers Zumigo and Microbilt, which were mentioned in last week's Motherboard report.

Democrats have also expressed concern, including calling for investigations and legislation. But Rep. Frank Pallone, D-N.J.