Same thing happens to me. They call every day and do not speak, silence!! I have received similar 264 numbers that end with 3106, 2332, 3227 and the same results on these calls. Once I pick up and a solar referral guy said it was not a sales call just a referral, which i did not believe.
Have been getting calls from 408-264-3328 "Toby Kerber" for several weeks. First time I got a real person when I picked up today. I told him he had no business calling my number and I'm on the DNCR; he pretended not to know what that was? Said his name is Adam West and kept calling me Alice. Asked to speak to his boss and was told nobody was around. He said he was calling on behalf of PG&E and the City of Santa Clara Utilities customers. Things got heated and he told me I need to get another line because "he owns me now". hung up on him and he called me back 5 times in under 10 minutes.
Called the City of Santa Clara Utilities and informed them that spammers were using there name to call the residents.
Action - put this information in the DNCR and *60 to block this a$$-hole going forward