The percentage of Americans with high-speed Internet connections at home has reached 70 per cent, while just three per cent still use dial-up to go online, a study reported.
The Pew Research Center's Internet and American Life Project said the percentage of high-speed users represented a small but statistically significant rise from the 66 per cent of adults who said they had home broadband in April 2012.
The percentage using dial-up as of May 2013 has held steady at three per cent for the past two years, Pew found, but is down sharply from a peak of 41 per cent in 2001.
Overall, 85 per cent of Americans use the Internet, the report said. Of those who lack a high-speed connection at home, 10 per cent have smartphones that can access the Web.
As previous research has found, those with the highest rates of home broadband use continue to be college graduates, adults under age 50, and adults living in households earning at least USD 50,000 per year. Whites and adults living in urban or suburban areas also had above-average rates.
The survey notes that more than half of all American adults own a smartphone, but it did not determine whether this constitutes "broadband" speed.
"Broadband users can consume and create many types of content in ways that dial-up users cannot, and our research has long shown major differences in these two groups' online behavior," said Pew's Aaron Smith, a co-author of the report.
"Smartphones may offer an additional avenue for Internet access that surpasses the dial-up experience in many ways, but those who rely on them for home Internet use may face limitations that are not shared by those with traditional broadband connections."