Almost 157,000 homes, farms and businesses are now connected to high-speed fibre broadband under the National Broadband Plan (NBP).
This means the Government's initiative has passed nearly 440,000 premises that can order the connection, which is ahead of its original end of year target of 420,000.
National Broadband Ireland (NBI), the company delivering the NBP, said it has completed build works to 80% of all premises in the plan's intervention area and forecasts it is on track to be completed by the end of next year.
The State Intervention Area includes parts of the country where private companies have indicated they have no plans to invest.
It includes over 564,000 premises and over 1.1 million people, and it also includes any new homes built in the Intervention Area over the next 20 years.
NBI also confirmed that the NBP is expected to be delivered within the capped State subsidy envelope of €2.6 billion, set at contract signing in 2019.
Speaking on RTÉ's Morning Ireland, the chief executive of NBI National Broadband Ireland, TJ Malone, said the overall project will come in somewhere around €4.4 billion over a 25-year period.
"The Government will contribute somewhere between €2.1 and €2.6 billion to that and the balance is obviously put in by ourselves, but we are on track and we are on budget," he said.
Mr Malone said they have had huge inflation since the start of the contract, with general inflation at 22%, but he said they have managed to cap their inflation to 8% over that period of time
"We have all of our builds now contracted out to the end of the project, the last 20% is well under construction at this stage and over the coming months we'll see it finish and complete, and by the end of the next 12 months, the entire project will be completed," he said.
Mr Malone also said the momentum behind the rollout is stronger than ever.
"The disciplined approach we've taken, both in managing costs and in planning the rollout, means we are on track to deliver this national programme within the original capped subsidy, despite considerable inflation in the wider economy since we first began construction," he added.
People living and working in the rollout area can connect to high-speed fibre broadband on the NBI Network through a choice of over 50 different broadband providers actively selling on the network.
