Residents and businesses in a larger number of areas now have access to BT's up to 330Mb fibre-to-the-premises (FTTP) broadband service.
Fibre On Demand has been enabled at another 163 telephone exchanges nationwide, meaning customers have the option of signing up for ultra-fast BT broadband, reports ISPreview.co.uk.
Should they wish to access FTTP broadband - which offers up to 330Mb downloads and up to 30Mb uploads - BT engineers will install an individual full-fibre line to their premises.
Last year, BT's infrastructure arm Openreach announced plans to make Fibre On Demand available at 303 telephone exchanges by March 2014.
The broadband provider says it has now hit this target, ensuring a greater proportion of the UK population can take advantage of full-fibre services if they choose.
Among the towns and cities included in the latest enablement phase are Belfast, Birmingham, Bristol, Cardiff, Edinburgh, London, Leeds, Manchester, Newcastle and York.