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."
More than 100,000 Welsh homes and businesses can now get access to high speed internet as a result of the UK Government's roll-out of superfast broadband.
It has invested £57m in the Superfast Cymru project which is on track to deliver superfast broadband to 96% of homes and businesses in Wales by the end of 2015.
The Welsh Government is contributing £58m to the project.
Communities already benefitting from access to faster broadband speeds in Wales include Blaenau Ffestiniog, Criccieth and Llanberis in the north, and Brynmawr, Clydach and Rhiwderin in the south.
Superfast broadband will enable a whole album to be downloaded in less than 30 seconds and a feature length HD movie in less than 10 minutes.
It will also help small businesses to grow and save valuable time by being able to make greater use of things like online ordering, doing more by email and accessing more services online.