Got call from this number and left a message about "political contribution". Sara's intuition may be right. Before this call, I got call several times from 408-520-7303, which I had blocked.
Called. Rang three times, hung up. Called again right after the first call ended. Now isn't that ANNOYING. As if one call isn't bad enough, they ring twice. Wont answer once, wont answer twice. Scam.