This number called the office yesterday. Although the boss answered it, I could still hear what sounded like a robocall before the boss hung up.
Upon checking my call records, we received a call from another number ( http://800notes.com/Phone.aspx/1-586-204-1115 ) with the same caller ID. That call was a robocall promoting medical braces. So, I'm suspecting the same promotion with new and possibly-spoofed number.
Called at 4:40 pm 6/27/2017. No caller id other than the number. Didn't answer call, They didn't leave a message, so I blocked the number. So happy to have additional info from others here, thanks for posting.