A man with a heavy accent just called me from that number.  Told me he was calling from "your computer's maintenance service."  When I told him I don't have a contract and told him good bye, he told me to wait and asked if I had a Microsoft Windows computer at home (?!) but did not ask about version of Windows.  When I asked for the name of the company he was calling from, there was a long aaaaah - did not tell company name, I hung up.  Wouldn't you know which company you are calling from?

I don't think this is anything legitimate and since Anthem has just advised me that my data was included in the breach, I suspect foul play.  Please be careful if they call you.