Residents in Blewbury, Caxton, Castleton, Madingley and Whitcomb are winning the race to be the first areas to get BT's high-speed fibre service.
The five winning areas will be upgraded by early 2012 at the latest. The company plans to conduct a technical trial of one Gigabit fibre broadband speeds in Kesgrave, Suffolk.
BT said more than 290,000 votes had been cast across the UK, including households and businesses.
John Petter, managing director of BT's Consumer division, said: "Thousands have voted, but there is still a long way to go before we reach the finishing line and everything to play for. Superfast speeds can transform your online life, whether you're social networking, gaming, streaming video, uploading or downloading."
A new OECD study has estimated the number of fixed broadband users in the UK at 18.8m. There are also 18.5m wireless subscribers in the UK. The OECD said fibre continued its growth relative to other fixed broadband technologies with fibre accounting for half of all broadband connections in Japan (55%) and Korea (52%).
Other leading countries in the study included the Slovak Republic (28%), Sweden (24%) and Denmark (12%). DSL was the most widely used technology in the OECD, accounting for 58% of all lines. Cable makes up 29% and fibre-based connections have grown to 12% of all lines.