BT added 104,000 retail broadband customers during the second quarter of 2014, it has been announced.
The telecoms giant accounted for 64 per cent of copper and fibre broadband additions in the UK between April and June.
BT's fibre business continued to grow strongly, with 226,000 customers taking out a super-fast package. This increased BT's fibre customer base to over 2.3 million.
Over 20 million homes and businesses now have access to BT's fibre broadband network, and more than three million in total - or 15 per cent of those passed - have signed up for next-generation services.
BT Sport also had a strong quarter, with continued growth in the residential subscriber base.
In addition, over 19,000 pubs, clubs, hotels and other commercial premises have signed up for subscription sport.
Gavin Patterson, Chief Executive of the BT Group, said the service provider has made "a good start" to the financial year.
"We have delivered growth in underlying revenue excluding transit and in profit before tax, and free cash flow was strong," he explained.
Mr Patterson said BT's fibre broadband network now covers more than 20 million premises, with 70,000 additional homes and businesses being passed every week.
"The second season of BT Sport is about to start with a great line-up of content and it will continue to be free with BT Broadband," he added.
"We are building on solid foundations and I am confident we will deliver on our strategy.”