Published Tuesday, 17 June 2014
Ofcom said people in Derry enjoy the best broadband coverage. (© UTV)
The communications watchdog said 99% of people in Derry have access to a high speed internet connection, the highest of 11 major cities included in the study.
Belfast also performed well with 98% availability.
Ofcom said almost everyone in Northern Ireland's largest cities now has access to superfast broadband, but this is not the case UK-wide.
One in three people in Glasgow aren't connected, with availability at just 67%, while users in Cardiff and Inverness are twice as likely to be on a slow connection as those in London or Birmingham.
The report added that disadvantaged areas are suffering the most.
Claudio Pollack, Ofcom's Consumer Group Director, said: "Access to fast broadband is an important part of modern life, and a source of economic growth and investment across the UK.
"We know from previous research that rural areas often lack fast broadband coverage, something the Government is helping to address with public funding.
"Today's findings suggest that the usage and availability of faster broadband also vary widely between cities. We will carry out further work in this area to help bring faster broadband to UK homes, whether in cities or rural areas."
© UTV News