Over 300,000 premises will be connected to high-speed fibre broadband by the end of the year as part of the National Broadband Plan.
National Broadband Ireland (NBI), the company responsible for delivering the plan, says more than 243,000 premises are now ready to connect to the network.
Over 500,000 premises have completed the initial surveying phase of the rollout.
"With this critical phase of the works now nearing full completion across the country, the majority of NBI's resources are now dedicated to the physical construction of its high-speed fibre broadband network," the company says.
Some 76% of the project (430,413) has moved to or through construction with over 48% of premises (268,649) now in the 'build complete' category.
The number of premises passed and which can connect to NBI's fibre network is 248,231.
NBI says 81,820 premises are already connected to the network.
A man plugs an ethernet cable into a broadband router, 24-10-17. Image: Piotr Adamowicz / AlamyNBI Chief Executive Officer Peter Hendrick said they remain on schedule despite interruptions from the COVID-19 pandemic.
"National Broadband Ireland has maintained momentum into this year and the rollout is operating on budget and on schedule," he said.
"We expect to pass over 300,000 premises and connect over 100,000 new customers to high-speed fibre broadband by the end of this year.
"Almost 90% of all surveying works are now completed which means a majority of our resources can now be dedicated to the physical construction of our high-speed network," he added.
Mr Hendrick previously said all homes and businesses not included in the National Broadband Plan will be fibre-connected by 2028.
NBI infrastructure is already live on 10 of the 27 islands included in the rollout. The remaining 17 islands are in various stages of survey and design works.
Updates can be found on an interactive map here
