NBN Co has confirmed that the rollout of optical fibre broadband infrastructure to Lismore has suffered further delays with some areas now not expected to be connected until next year.

Much of Lismore - including most of Goonellabah and East Lismore - has already been connected to the NBN via Fibre to the Curb or Fibre to the Node technology.

But large areas of the city including Lismore Heights, North and South Lismore and "The Wok" are yet to be connected.

Businesses were told at an information session earlier this month that much of the remainder of the Lismore urban area would be connected to the NBN at the end of the month and the rest in November.

However, that's now been pushed back again.

"There are currently more than 8,800 Lismore premises that are able to connect to the NBN access network," an NBN Co spokesperson said in a statement.

"Construction continues to connect the remaining 5,400 premises in parts of Howards Grass, Girards Hill, Lismore Heights, North Lismore and South Lismore, however, delays due to issues with the aerial build required and blockages in the physical build have meant some of these areas will have a revised connection timeframe of early next year."

The NBN Co statement did not specify when particular areas are due to be connected.

However, the "NBN Rollout Map" seems to indicate that Lismore Heights, North Lismore, the CBD from Woodlark St and further north, some remaining areas of Goonellabah, and the areas north and east of the Lismore Square should have their NBN connections switched on in October.

The Rollout Map shows that other areas including South Lismore, Girards Hill and the CBD south of Woodlark St should get the NBN between January and March next year.

All properties yet to be connected to the NBN are getting Fibre to the Curb technology.

“While we would like to connect everyone at the same time, the complexity of the build means that this is not possible. We apologise for the delay and we ask the community for its patience as this important work is carried out," the statement said.

“Nationally, the NBN network build is on track to be completed by 30 June 2020.

“We encourage residents to use the Check Your Address function on the nbn website (www.nbnco.com.au) to see when their individual property will be eligible to order a retail service over the nbn™ network.”

Residents and businesses should receive a letter from NBN Co when their premises is NBN ready.

They then need to contact an NBN supplier to have NBN services connected.

For more information head HERE for residential addresses and HERE for businesses.