Vodafone and other broadband providers are rounding on BT, amid growing concerns over a fibre broadband 'monopoly'.
BT has come under fire for retaining control of high-capacity links for businesses, which forces wholesale customers - such as Sky and TalkTalk - to rent access on BT's technical and service terms.
Under regulations imposed on BT a decade ago, the former national operator is required to hand over control of its residential lines to individual premises if customers want to switch broadband provider.
But these rules do not apply to high-capacity data links - something which continues to trouble rival broadband providers.
According to the Telegraph, Vodafone, Virgin Media, TalkTalk and Sky - among other operators - are eager for the communications regulator Ofcom to intervene.
They want to take control of part of BT's network, either by controlling existing fibre optics - under a 'dark fibre' arrangement - or by laying their own lines in BT ducts.
Should either approach be adopted, it would allow them to by-pass BT in commercial relationships, potentially increasing competition in the market.
The Telegraph suggests Vodafone has the most to gain from new Ofcom regulation, following its purchase of the Cable & Wireless network two years ago.
Should the mobile service provider gain dark fibre access, it would no longer have to deal with BT at all.
In a submission to the regulator, Vodafone said it supports the introduction of dark fibre.
“With Vodafone’s fixed and mobile capabilities in the UK there are huge opportunities for greater innovation following the availability of passive access," the company added.
Ofcom said it is considering whether BT should be required to provide industry with physical access to its fibre network and ducts.
"We’ll consult further on this as part of our current review of competition in business connectivity," a spokesperson for the regulator stated.