BT is understood to be planning to announce a multi-billion-pound boost to its fibre broadband rollout plans in the coming days.
The company is currently aiming to deliver full-fibre broadband to two million homes in the next two years.
However, the Telegraph has spoken to sources that have indicated the target could be increased to three million and that an announcement on this is imminent.
The newspaper also understands that BT's infrastructure subsidiary has secured the cash after making the case that full-fibre cables carry much lower maintenance costs than older copper lines.
Openreach has already consulted with communications providers to identify the level of demand for a major full-fibre deployment.
The organisation believes a large-scale rollout can only take place if there is greater industry and political collaboration.
This, it said, would enable stakeholders to devise new investment, risk and cost-sharing models, as well as agreement on how to migrate customers onto the new platform en masse.
Openreach has expressed a desire to roll out full-fibre broadband to ten million homes by 2025.
However, it would not be drawn on the details of the planned announcement, with a spokesman saying: "The business is currently consulting with its wholesale customers on how to achieve its ambition of making ultrafast Fibre-to-the-Premises technology available to ten million premises by the mid-2020s, and it will be publishing an update on this process in the near future."
This latest speculation comes shortly after Vodafone and CityFibre announced a long-term strategic partnership that will lead to up to five million premises having access to ultrafast broadband by 2025.
The first phase will see fibre-to-the-premises technology - which is currently only available to around three per cent of UK premises - being deployed to one million homes and businesses over three years.
Vodafone and CityFibre will then have the option of extending the commercial terms of their agreement to reach a further four million premises by 2025.