Comcast: Superfast Internet Without Major Infrastructure Changes

Comcast Just Had a Major Breakthrough That Could Mean Superfast Internet

Steven Kovach | December 27, 2015

Comcast announced this week that it has successfully tested the world's first DOCSIS 3.1 modem in Philadelphia.
That probably sounds like a mumbo-jumbo to you, so let's put it in simple terms. This means Comcast has figured out how to use its existing cable lines to deliver superfast gigabit-internet speeds without having to do major work on its current infrastructure. 

April 2014. Source: http://www.mushroomnetworks.com/blog/wp-content/uploads/2014/04/ISP-speeds-in-USA.jpg

<more at http://www.businessinsider.com/comcast-activates-first-docsis-3-1-2015-12; related links: http://philadelphia.cbslocal.com/2015/08/04/faster-wider-wireless-comcast-expands-low-cost-internet-essentials-program/ (Faster, Wider, Wireless: Comcast Expands Low-Cost Internet Essentials Program. August 4, 2015) and http://corporate.comcast.com/comcast-voices/worlds-first-live-docsis-3-1-gigabit-class-modem-goes-online-in-philadelphia (World's First Live DOCSIS 2.1 Gigabit Class Modem Goes Online in Philadelphia. December 22, 2015)>