BT has announced that its broadband customer base grew by 35,000 in the final quarter of 2017.
This took the overall figure up to 9,342,000 and is an increase on the 22,000 upturn reported in the previous quarter.
BT also confirmed that ultrafast speeds (100Mbps or more), which are available via its G.fast and fibre-to-the-premises (FTTP) networks, are available to 886,000 premises, up from 770,000.
Retail fibre additions grew by 298,000 between October and December, taking its base up to 5.5 million. This means that 59 per cent of its retail customers are now on fibre.
The upturn reflects BT's growing commitment to rolling out fibre-based broadband solutions across the country.
Earlier this month, the company launched Ultrafast fibre broadband packages offering speeds of 152Mbps and 314Mbps.
Both packages come with a 100Mbps speed guarantee, which means subscribers will receive speeds that are ten times faster than the UK's average standard broadband speed at peak times.
BT is so confident of the reliability of its high-end fibre service that it is offering the option of claiming £20 compensation if a subscriber's speed ever falls below 100Mbps.
Furthermore, BT's infrastructure subsidiary Openreach this week pledged to make FTTP broadband available to three million premises by [2020.]( https://www.uswitch.com/broadband/news/2018/02/openreachaimstoconnectfibrebroadbandto3mmillionpremisesby_2020/)
FTTP offers speeds of up to 1Gbps, which is enough to stream 200 HD movies simultaneously, and significantly faster than the 24Mbps speeds delivered by superfast broadband.
Gavin Patterson, Chief Executive of BT, commented: "We continue to work closely with the UK government, Ofcom and our customers to expand the deployment of fibre.
"We are delivering against our strategy, capitalising on opportunities and responding to market challenges with a robust set of actions."
Mr Patterson added that BT is continuing to improve its customer experience metrics across the group, with its sixth successive quarter of bettering customer perception.