TalkTalk saw a decline in its on-net broadband base during 2016, although the figure picked up towards the end of the year.
According to its latest annual report, the company's on-net broadband base contracted by 49,000 throughout 2016.
However, there was a return to growth in the final quarter of the year, which it attributed partly to the launch of Fixed Low Price Plans (FLPPs).
In October last year, TalkTalk said it would seek to prevent customers experiencing "bill shock" by offering a guarantee that broadband prices would be fixed for 18 months.
The company then announced in January it is extending this proposition further, ensuring people with 12 or 24-month contracts will not see prices go up during this period.
Figures also revealed that average churn rates improved towards the end of the year, which it again put down to the introduction of FLPPs.
As a result, the company believes it is on a "promising trajectory" ahead of the 2018 fiscal year and expects to see churn continue improving in the coming months.
TalkTalk confirmed that more than one million customers are now on FLPPs, with 59 per cent of its on-net retail base in contract.
"Existing and new customers responded extremely well to the new plans through H2, with the 24-month plans introduced in Q4 showing particularly strong demand," the provider said.
Sir Charles Dunstone, Executive Chairman of TalkTalk, added that it has made "solid progress" in recent months in transforming its systems and improving its network.
This, he stated, has enabled the firm to "deliver a better experience for our customers and reduce churn from last year’s elevated levels".
Sir Charles added that the launch of FLPPs was "unique to the UK market" as they were also made available to existing customers.