Ofcom has published its latest data on broadband provider complaints in the UK, offering insight into service levels within the industry.
According to the media regulator's fifth quarterly report, TalkTalk received more complaints than any of the other major fixed broadband providers.
The home phone and broadband provider generated 0.56 complaints per 1,000 customers over the first quarter of the year, a slight improvement on the 0.61 recorded in Q4 2011.
BT Retail was next with 0.38 complaints per 1,000 customers, followed by Orange (0.37) and Virgin Media (0.17).
Based upon the Ofcom data, Sky received fewer complaints than any of its other major rivals - at just 0.15 per 1,000 broadband subscribers.
The latest findings will come as something of a disappointment to TalkTalk, however the firm has improved its record in the last 12 months.
Back in Q1 2011, the broadband provider received 0.81 complaints per 1,000 customers, following 0.78 in the previous quarter.
The Ofcom study also offered insight into the service levels provided by the three major subscription television providers - Sky, BT and Virgin Media.
Just 0.03 of Sky customers per 1,000 were dissatisfied with their satellite TV service, the same proportion as in Q4 0211.
Virgin Media fared slightly worse with 0.07 complaints, down from 0.08 in the previous quarter, but BT lagged some way behind.
BT Vision received 0.27 complaints per 1,000 customers, suggesting there is still room for improvement at the broadband, home phone and pay TV provider.
Ofcom suggested that issues related to the firm's sales processes and billing may have caused concern among subscribers during Q1 2012.
"We note, however, that BT Vision improved its performance quarter-on-quarter," the media regulator stated.