Comcast anounced it is increasing the speeds of two of its most popular XFINITY Internet speed plans, Blast! and Extreme 50, in the Greater Chicago Region next month for no additional cost. Customers will enjoy more than twice as fast Internet speeds on multiple devices, allowing them to surf, chat, stream HD movies and TV shows, or game online with double the speed. Also for no additional cost, Comcast in April will increase the speed of its widely used Performance plan by more than 60 percent. For more information on Comcast’s XFINITY Internet services, customers can call 1-800-XFINITY or visit www.comcastcorporation.com.