Virgin Media does not intend to offer wholesale access to its new super-fast fibre-optic network, it has been reported.
Duncan Higgins, Head of Broadband at the internet service provider (ISP), said rival firms will not be able to supply broadband deals using the infrastructure.
Speaking at a Westminster eForum on broadband, he said allowing access "would not actually add a single super-fast broadband home" to the UK.
This is because BT is already rolling out high-speed broadband in all of the same areas, Mr Higgins claimed.
However, Liv Garfield, Director of Strategy, Policy and Portfolio at BT, refuted this suggestion.
BT currently offers wholesale access to its network, allowing smaller ISPs to provide broadband deals capable of achieving up to 40Mb broadband speeds.
In total, more 15 million customers receive their broadband services over the firm's telecoms infrastructure.
Last week, Virgin Media announced that its new 100Mb broadband deals will be available to the consumer market from December.