The calls went to voicemail. The message said the caller claims to be Jason Brown from IRS, and that I'll be arrested by the police if I don't respond within 1 business day. From what I've been able to learn through Google-ing the number, it is a scam, and many people around the country are being contacted by these people in the last few days. Please don't answer the call, and just block the number.
There was a man with a thick accent saying that his name is Jaso Brown from the IRS and I couldn't understand everything else except that i have 24 hrs to respond or i will be taken in custody.