I received a call as well, and didn't receive a voice mail either. On my iPhone it says from South San Francisco Bay Area. I live in TX and don't know anyone from there so I don't know why I would have received a call from there.
I've just bought this phone, it's one of those prepaid ones only a handful of people have this number. I've been unemployed since July '11 and I've signed up at Monster.com and Career builder.com to look for work, since then my cellphone and my home phone have been bombarded with telemarketers. This 408 number started calling today.