Comcast today said that its DOCSIS 3 Internet access has reached about 20 percent of its coverage areas in less than a year through expansion into three new areas. Subscribers in particular areas of Atlanta, Balitmore and Chicago now have the option of using the faster, channel-bonded access with either a 50Mbps Extreme tier with 10Mbps uploads or an in-between 22Mbps Ultra tier with 5Mbps upstr
