I've been having the same issue here in VA, to my cell phone. The calls all appear as the same area code and prefix as my cell. I'll block the number, but they will call again as the last 4 numbers always are different. They are always for student loan refinancing (I don't have any student loans)
I answered it a few times to see if I could talk with someone (press 0). It is always answered by someone with an Indian accent, and as soon as I say I want to be taken off their list they just hang up.
Those guys are a total scam. They spoof the numbers so they look like they are coming from all over, Iowa, MN, IL, NY, but they all originate in CA. I think I actually got that particular group to stop calling me. I called them back 4 or 5 times in a row when they keep hanging up on me. Told them that every time they call me I call them and every time I will be meaner and nastier, that I would save my calls for when I was taking a dump so I didn't waste any of my valuable time. Kept asking for the address and name for service when I sued them. Gave them a description of the poop I was taking. ... That pretty much stopped.
I never answer my home phone, no idea why I still have it. Every day there will be 5 or 6, some time 10+ calls that are obviously auto dial that have no message on the machine. I've tried picking up to get to a person on the one that will lower your credit card interest rates. No matter how often I have tried, can never get to a person. No idea how it can be effective for them since they never pick it up.
We are so fucked.