Thanks to all who made reports before me. This number called and left no message. I looked it up here and as a result I have added them to my phone's list of annoyance callers, so next time the id will show its a telemarketer and the ringtone will be "mute". Let's all make it very unprofitable to pay people to make these calls. I will not buy from or donate to an organization making unsolicited telephone calls under any circumstances!!! Spread this policy and maybe they will go away.
Companies like CallerId4U are registered telecoms and provide (sell or lease) telemarketers blocks of phone numbers to use for their robocall campaigns. They then make money from your phone company through a tariff on accessing the caller ID for the incoming call. The call doesn't even have to be answered and they get paid. And guess who covers the additional operating costs to your phone company? You do in your monthly bill.
I forget to mention, the 360-332-6420 is a CallerID4U number. You can view the numbers owned by this telecom through links on the side of the web page I referenced.