I called back and finally got it to pick up. It's some sales type place with an automated system for a rebate card. It gives the option of pressing 1 for the card or 2 to be placed on the "do not call list". I made the choice of 2, of course. Lol.

Left no voicemail

Get a call from this #, I answered and no response then it hang up.

This # called my cell phone but did not leave a message either.  I looked it up and it says it's coming from Stockton or maybe Groveland.  I do not know anyone from either of those areas.

Received a call but they left no message