Comcast says it will offer super-fast internet speeds to residents across its Colorado cable territories early next year as previously promised.

Philadelphia-based Comcast Corp. (Nasdaq: CMCSA), the dominant cable provider in the Denver metro area, confirmed Tuesday that it will make 1 gigabit-per-second residential internet service available broadly in Front Range communities by early 2017.

“Comcast understands that internet speed is critical for customers who want to be able to do more, faster, with as many speed choices as possible,” said Rich Jennings, regional senior vice president for Comcast.

Comcast -- which offers home internet, cable and phone service under the Xfinity brand -- did not announce prices for its gigabit internet service.

What Comcast is announcing is the first widespread deployment of gigabit internet speeds using existing networks of coaxial cable and fiber optic lines that are already in place in most neighborhoods and homes.

The cable company -- like competitor CenturyLink Inc., Colorado's largest land-line phone provider -- currently offers gigabit-speed internet to the small number of Colorado homes that have fiber optic lines running right into the house. Most cable customers have coaxial cable connections, however.

The cable industry has worked for years on its DOCSIS 3.1 technology standard that reaches gigabit or faster internet speeds using existing infrastructure. It only requires that customers get an upgraded cable modem in their home.

Comcast, after testing it in Chicago, Atlanta and Nashville this year, plans to roll out DOCSIS 3.1 to all its U.S. cable territories over the next few months.

In Colorado, the gigabit speeds will become available in some neighborhoods in coming weeks and spread as Comcast completes network upgrades, but the company is unable to say yet exactly where it will available when, said Leslie Oliver, a spokeswoman for Comcast in Colorado.

“It is coming soon to all of Colorado, and soon means early 2017,” she said.