In this five part video series, Wireless Week editors Andrew Berg and Ben Munson will count down the top headlines of 2013. Be sure to catch each installment, as we make our way through all the biggest news events from the past year! Episode 4, which includes top headlines 10-6, touches on a range topics and events and companies, including BlackBerry, AT&T, Leap Wireless, the NSA, iPhones, Nokia and Microsoft!

In case you missed them, check out the previous installments: 25-21, 20-16 and 15-11.