FYI to all of you. You can call the Membership # at SAM and ask to be removed. Call 206 654 3210 and ask for Ella. I think if enough of us call, they will get the message :))
I called it back. First of all, if you're using a landline, and you just dial the number without a "1" in the front for a long distance call, the Seattle area phone service will truncate it, so you're actually dialing (206) 323-6340 .... the 870 gets dropped as irrelevant, and you get some poor guy who's really tired of getting these calls. He's a nice guy, so stop calling him.
If you call it on a cell phone (which doesn't require a "1" or if you put the 1 in front of the number, you get "Donor Services" calling on behalf of the Seattle Art Museum.
The reason it's an LA area number is that's the location of the company SAM hired to solicit donations.