Virgin Media is piloting broadband speeds of 200Megabit per second (Mbps) for a small group of users in the UK.
Following successful trials in the lab, 100 "lead adopters" in Kent will have access to the high speeds, believed to be among the fastest in the world.
Virgin will be using the high speeds to test applications such as 1080p high definition TV and 3DTV.
The pilot will last six months before the results are analysed. A variety of upstream speeds will also be tested.