Time Warner Cable customers are not happy.
The American Customer Satisfaction Index, a survey released Tuesday that measures customer satisfaction among different industries and sectors, found that the New York City-based cable provider ranked dead last within its industry this year. (Tweet This)
"We made significant investments to improve the reliability of our network during 2014 and, by many measures, we are delivering customers a better experience today," Time Warner Cable said in a statement.
Comcast, another telecom giant, was 2014's biggest laggard in customer satisfaction last year, the study said, adding that its consumer satisfaction fell by 10 percent year-over-year, its lowest mark since 2008.
The study also found that consumer dissatisfaction spans the entire cable industry.
"None of these companies score particularity well," it said, noting that overall industry satisfaction has dropped 3.1 percent year-over-year. "Meanwhile, dissatisfied pay TV customers have more alternatives than ever before through 'over the top' streaming video services like Netflix, Apple and Amazon."
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Still, some cable companies improved on this category from 2014 to 2015.
Verizon FiOS saw a customer satisfaction increase of 4 percent, while Charter Communications, which recently agreed to a $56 billion merger deal with Time Warner Cable, saw a 5 percent rise.
DISCLOSURE: Comcast is the parent company of NBCUniversal, which owns CNBC. Comcast was also previously involved in merger talks with Time Warner Cable.