Internet service provider (ISP) Virgin Media is to trial 1.5Gb broadband - more than 240 times the national average.
The ISP will test the new service at London's 'Silicon Roundabout' in the vicinity of Old Street, using the same fibre technology which currently supports its 100Mb super-fast broadband deals.
Should Virgin Media succeed in bringing 1.5Gb broadband to the consumer market, it would represent the fastest internet service in the world.
A number of companies in the creative industries are participating in the broadband trial, which will use bonded downstream and upstream channels.
Jon James, Executive Director of broadband at Virgin Media, said demand for greater bandwidth is "growing rapidly" as more people go online simultaneously.
"Our growing network provides a highly competitive alternative to the fastest fibre networks of the future," he stated.
"With our ongoing investment plans, we can anticipate and meet demand as it develops over time, ensuring Virgin Media business and residential customers continue to enjoy world-class broadband."