First call from this number, no message was left, now blocked

Me too.  They called at 5:45 pm today.  No message left.  Reporting to No Mo.

Yet another Solar installer telemarketer idiot. I don't know how these scammers are still around. Why would anybody ever do business with these idiots.

Another call, no message, tracked by CID-minimum weekly calls.  Does no good to report to Do Not Call Registry.

Same deal, a call with no message. Since "Stupid Scammers" above says it's a solar installer, at least we know now that it's prudent to block the number.
Thanks to sites like 800notes.com it seems that fewer and fewer people are actually answering their phones when they don't know who's calling. Thanks for setting this up, guys!