Multiple calls over last two weeks, utilizing spoofed number. Related to scamming "home improvement" services, a la "we will be in your neighborhood tomorrow." Block them, report to donotcall.gov. Calls like these represent a major reason for people to cut loose their landlines, if they can. They prey on vulnerables/people who are too polite to hang-up, if they do answer.
This # (650-268-4417) came from Pescadero, CA, so are some other #s from Pescadero, CA: 650-262-4146, 650-262-6870, 650-262-3412. All scammer #s and all have been blocked.