An estimate that 45,000 addresses in South Australia will have access to the NBN by the end of this year.

Apparently that puts the $36 billion project on schedule to meet its target on a national basis according to the Gillard Government.

Take-up rates in one of the first sites to be rolled out - Willunga - are the second-highest in the country with four in 10 homes, or 41% electing to use the high-speed internet facility.