The NSW bushfires have cut communication to tens of thousands of people.

A spokesperson said nbn was working with emergency services to reach areas cut off from communication.

"We have generators on standby that will be deployed to priority areas as soon as these are accessible," the spokesperson said on Monday, January 6.

"We are also staging materials and people in Canberra and Wollongong, ready to repair impacted sites as soon as possible.

"Technicians are currently onsite working to recover damaged infrastructure at Lake Conjola.

"Inspections of other infrastructure in the area are being undertaken where access has been permitted. Generator deployments are also underway in parts of the Bermagui region today."

Crews are installing satellite dishes at evacuation centres to provide free satellite wi-fi, with the support of emergency services and local government at the following locations:

Bermagui Surf Lifesaving Club, Bermagui

Cooma Multi-Function Centre, Cooma

St Georges Basin Country Club, Sanctuary Point

Hanging Rock Sports Club, Batemans Bay

Ulladulla Civic Centre, Ulladulla

Bombala Community Centre, Bombala

Omeo Recreation Reserve, Omeo

Bairnsdale City Oval, Bairnsdale

Goulburn Recreation Centre, Goulburn

Narooma Leisure Centre, Narooma

Bega Showgrounds, Bega

Moruya Basketball Stadium, Moruya

We are also installing Sky Muster satellite services at the following locations and hope to have Wi-Fi available within the next day:

Willawarrin Public Hall, Willawarrin

Lexton Recreation Reserve, Lexton

Ferny Creek Primary School, Ferny Creek

Kingscote Football Club, Kingscote

A nbn Road Muster truck is also available at the Bateman's Bay evacuation centre providing free Wi-Fi and a charging station. We will continue to work with local authorities to provide additional services where required.

NBN Co will be providing regular updates on the bushfire recovery and community support at: http://www.nbnco.com.au/blog/the-nbn-project/bushfire-recovery-and-support-updates