By this, do you mean you are looking for names and phone numbers of Australians to use for telemarketing or telesales? If so, let me tell you right here and now that it is illegal to make unsolicited calls to Australian people.
Most Australians intensely dislike receiving these calls and will report them to the police and other authorities to have such calls traced and the offenders prosecuted. We are already receiving so many calls, especially from the fake "Windows Support" call centers. Most people around the world are now fully aware of that scam, and Australians, in particular, are becoming very angry with these calls.
You would be well advised not to go down that path.