Carrier AT&T is continuing the roll-out of its 4G LTE network, announcing the expansion to 24 new markets this week. The move means 150 million US residents now have access to the high-speed network, which is more than double of the number the carrier catered to last year. AT&T said it's ahead of schedule with the roll-out, and its 4G network can be as much as 10 times faster than 3G speeds when accessing data on the go.
