Startup Turns Your Cell-Phone Number into a Location Fix

By Tom Simonite, Technology Review

Your phone number’s area code gives other people a clue to where you live, or have lived in the past. Startup company Loc-Aid can use your full phone number to figure out exactly where you are right now. The service has caught the eye of banks and card issuers interested in checking where their customers are—as a way to reduce fraud—and of retailers interested in sending deals to people nearby.

http://www.technologyreview.com/computing/39275/?p1=A4