Just received another call from them 2 minutes ago. I didn't answer and they didn't leave a voice-mail. I am constantly getting calls from various numbers in the US that appear on my call display as being from Washington.
I trace them but alot of good that will do because, unless they are threatening, etc., there's not much that can be done.
Don't bother answering the phone. They are criminals operating from some third world country...spoofing this number and many others (Washington State is a favorite of theirs right now).
They ask you to take a brief political survey, and if you do they will give you a "prize" namely a cruise. This, therefore is likely to be the all-time most expensive survey ever conducted, world-wide since every person who answers the "survey" gets a cruise.
Oh, but of course.....you really won't get the cruise. Instead you get your credit card number stolen (oops, did I forget to mention that they want you to give them your credit card number in order to claim your "prize").
If these criminal were given IQ tests, their scores would be the lowest ever recorded.
They are robo dialling and if you block their number they will just call you from another number (in my case, I have had 3 or 4 calls from different numbers...a new one each time I block the last number).