Mobile Data: A Gold Mine for Telcos

Cell phone companies are finding that they're sitting on a gold mine--in the form of the call records of their subscribers.

Researchers in academia, and increasingly within the mobile industry, are working with large databases showing where and when calls and texts are made and received to reveal commuting habits, how far people travel for public events, and even significant social trends. With potential applications ranging from city planning to marketing, such studies could also provide a new source of revenue for the cell phone companies. "Because cell phones have become so ubiquitous, mining the data they generate can really revolutionize the study of human behavior," says Ramón Cáceres, a lead researcher at AT&T's research labs.