The UK has been slow to embrace fibre to the home (FTTH) and fibre to the building (FTTB) technology, despite significant growth in the market elsewhere in Europe.
According to figures presented at the FTTH Conference 2016 in Luxembourg, more than 35.9 million had subscribed to FTTB and FTTH by the end of September 2015.
This is 19 per cent higher than the amount recorded at the start of the year.
Edgar Aker, President of the FTTH Council Europe, observed: "The year 2015 has seen continued structural growth in fibre rollout throughout Europe, confirming the trend already observed in 2014.
"Europe is now well positioned to stimulate FTTH rollout, the only future-proof broadband solution."
However, a number of European countries were found to be "holding back" on their fibre deployments.
The UK, for instance, connected 26,000 more FTTH/B subscribers in the first nine months of 2015, but is yet to achieve the qualifying one per cent threshold for a place on the FTTH ranking.