Called today around 1:30 PM. Caller ID: 443-410-0635 / Pinnacle Energy.
A quick check of the internet reveals that Pinnacle Energy sells replacement windows, vinyl siding, and other home improvement products residents of DE and MD. But their published numbers are 410-412-3307 (in MD) and 302-444-8170 (in DE).
Did not leave a message. Calls reported as far back as Nov 2015 but was not blocked by the free anti-robocall service, although I will remedy that.