I get a lot of spam calls. I usually google the number, and many times it actually comes up as a spam call. This time of year with Christmas shopping, I have been getting calls from Seattle; turns out it's a call from Amazon when they attempt delivery of a package.

I never answer unless I know who is calling. And I usually block any strange numbers. I truly believe it's safer to not answer unless you know the actual person who is calling. FWIW.