Got a call from this number under the name of CONNOR but did not leave message.  When I returned the call a woman answered and said it was GEMCO and that they dialed the wrong number.

Called my landline number two days in a row, one in the morning, the second in the evening. I did not pick up. The caller ID showed Jan Pro Cleaning. The area code is adjacent to mine so I would have picked up had I been there. Did not leave voicemail.

caller ID "jan proclean" called twice but didn't leave a message. cold calling for business?

Called, left no message. Google Voice didn't pick up the caller ID (i.e. hung up quickly).