BlackBerry Ltd. surged the most in more than three years after the Department of Defense said the company’s smartphones will account for 98 percent of devices in one of its new networks.

About 80,000 BlackBerrys and 1,800 phones and tablets based on Apple Inc.’s iOS software and Google Inc.’s Android operating system will start being hooked up to the Department of Defense’s management system at the end of this month, the Defense Information Systems Agency said in a statement last week.