This number is one used by the state of Washington as a caller Id but they are actually calling from another at there office. They do not want the public to know there actual phone number do to harassment to them at there real numbers. other municipalities such as city employees also use this system.
I, AGAIN, got a call from this number looking for someone else. I, AGAIN, told them that I have had the number for over 3 years. Apparently, they don't pay attention, they just try to call again some other time.