Another poster has also identified this number as being from Kohl's. Look up their contact information, send them a cease communication letter VIA certified mail with return receipt requested informing them that they are illegally robo-dialing your cell phone which is a violation of the TCPA, the person they are after is not at this number and you intend to take legal action if the calls do not stop.
I called the number back and she answer using my first name as if she knew me. She identified herself as working for Personal Placement Services and wanted my birthdate and last 4 of my social security. I told her that I wouldn't provide them with that until they told me what this was in regards to. All she would say it is a personal matter and that she would have to hang up.
Please forgive the personal question, but do you mind my asking if you are recently unemployed by any chance? I lost my job two weeks ago and have received multiple calls from this number each week since. Personal Placement Services following termination? Interesting.