BT plans to hook up another 1.2 million homes to its fibre network by the Spring of next year, with 99 exchanges set to be upgraded.
The plans form part of its overall £2.5bn campaign to get two-thirds of the country on to its network with high-speed services of 80Mbit/s or above.
The main areas that will be targeted in this roll out include Scotland, the Midlands, the North East and North West of England, BT said, with exchanges in Redcar, Grimsby and Carnousite, just some of the areas set for an upgrade.
BT said some premises within the selected areas wouldn't be able to receive the fibre connections from the off but it would work to achieve this using alternative methods, although didn't elaborate on what these would be.
Openreach managing director Mike Galvin said the work underlined the firm's commitment to get as many premises online with faster services to boost the nation.
"I am sure that communities across the UK will be pleased to see that they are factored into our commercial plans and I now look forward to working with councils to identify further areas that we can enable with their support," he said.
"Our engineers are working round the clock to hit our ambitious target of reaching two-thirds of UK premises with fibre during Spring 2014 - at least eighteen months ahead of the original timetable."
The announcement from BT comes a week after it was confirmed that US media and telecoms giant Liberty Global would buyout Virgin Media for a whopping £23bn in a move that could bring renewed competition to the UK market.
BT appears safe in the government sphere, though, as it continues to win numerous contract from local authorities under the Broadband Delivery UK framework.
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