(530) 867 in Woodland, CA

I live in Australia, and received what now appears to be a stolen number. It showed on my cell phone to be this exact number calling from CA, which would be correct, however they were claiming to be calling from New South Wales (I can't remember the company, but to do with traffic etc). They knew an email I have used previously and a state I have lived in but not currently. I never said yes or no and used a made up accent to hide my identity. I don't know which laws this falls under... but this number was used to scam here in Australia, possibly using a computer as a mask?? As time in CA would have been between 10-11pm at time of call.