Culture Secretary Maria Miller said:
"It's brilliant news that more than 100,000 Welsh homes and businesses are already gaining real social and commercial advantages as a result of the nationwide rollout.
"The contribution that the Governments' delivery of superfast broadband by 2017 will make to the economic growth of the nation cannot be underestimated."
Wales Secretary David Jones said:
"Today's announcement marks a significant leap forward in our efforts to ensure Wales has a broadband network fit for the digital age.
"Thanks to the investment made into Wales' digital infrastructure by this Government, we are well on our way to achieving a truly remarkable transformation in broadband provision in Wales."