BT added another 170,000 retail broadband customers during the first three months of the year, continuing its strong growth.
The company claimed 79 per cent of the DSL and fibre broadband market net additions between January and March, taking its customer base to 7.28 million.
BT's growth rate was up on Q4 2013, when it added a net 150,000 home broadband customers.
In terms of super-fast fibre broadband, BT enjoyed its best quarter to date.
The firm added 249,000 BT retail fibre broadband customers in Q1 2014, meaning 2.1 million home and businesses are now taking an Infinity package.
In addition, BT claimed another 46,000 pay-TV customers in the first three months of the year, growing its customer base to one million.
BT Wi-Fi usage also continued to grow, with consumers logging on for more than 10.2 billion minutes during the first three months of the year.
The strong performance of BT's broadband and TV businesses contributed to increased overall profitability for the group.
BT said a 24 per cent rise in broadband and television revenue helped boost takings by nine per cent during Q1 2014.
Gavin Patterson, Chief Executive at BT, said the company is continuing to make "strong progress".
"We achieved an excellent 79 per cent share of broadband market net additions in the quarter," he stated.
"BT Sport has proved very popular and we are delighted the service is now in around five million homes."