This number called the office Friday after everyone left. There was no message.
Based on the caller ID, I suspect this could be a call asking companies to update their Google or Google-Plus profiles.
The following other numbers with the same caller ID have called us this year:
http://800notes.com/Phone.aspx/1-269-224-4859 (multiple calls) /
http://800notes.com/Phone.aspx/1-516-273-7138 /
http://800notes.com/Phone.aspx/1-651-313-7198 /
http://800notes.com/Phone.aspx/1-734-666-9978