Pre-construction work at Prospect Vale, Blackstone Heights, Newstead, Norwood, Punchbowl, Kings Meadows, Mowbray, Newnham and Mayfield has begun.

Works for pending fixed-line connections have been added on NBNCo progress maps and also include Claremont in the South.

Once construction begins, NBNCo said an anticipated 10,600 residents and businesses in the regions could expect a 12-month wait until they were able to access the service.

Bass Liberal MHR Andrew Nikolic said the works would cater for about 7800 premises in the Launceston area.

The announcement was old news, according to Tas ICT executive officer Dean Winter.

``NBNCo took suburbs like Prospect Vale, Blackstone Heights, Newstead, Norwood, Punchbowl, Kings Meadows, Mowbray, Newnham and Mayfield off its rollout maps on October 30 last year,'' Mr Winter said.

``All NBNCo has done is announce it is preparing to build something it told us was already `under construction' 12 months ago.''

A new string of works to shutdown copper networks across Tasmania will begin from September 29 in South Hobart.

Launceston and St Helens will have their network shutdown from December 14, with works in Scottsdale, Smithton and Sorell starting from October 23.

For more information about the NBN rollout go to www.nbnco.com.au/rollout/rollout-map.