In the last maybe 3 weeks, I've been getting constant calls from within my local calling area. Never a name, just the calling number.  I know all my neighbors and my kids' friends and they all come in by name. Apparently one of our scammers has a bank of spoofed numbers local to me, and I'm guessing I'm not the only one. The scammers are betting that some will trust a local number and answer. If anyone does answer, then you have been marked as a working line. The result will be more calls.
Never pick up if you don't know the caller!