Calling this number back gets you to solar energy company's voicemail. Name of company is difficult to understand but first word is American. Voicemail has 2 options: 1) inquire about solar energy, 2) request to be taken off their call list.
Called my cell phone today at 2:45 pm. Now blocked thanks to the above comments. I also got a call from 951-366-0314 today -- not sure if they are related, but both showed on my cell phone as "Suspected Spam".