I have received 6 calls in the past two days from this number. I have not answered and no messages. I suspect that some companies or employees of some companies are really hard up for cash and have gone to selling phone numbers. If you have a cell phone you should be able to put the number on a call reject list in the phone. I just did mine. Hopefully who ever this is they get the message.
I started getting phone calls from this number multiple times a day. Didn't leave a voice mail and when I called back I was automatically transferred to a voice mailbox that gave no information about the caller. Cell phone numbers went public this past October. Call 888-382-1222. This is the national do no call registry. It takes less than a minute and lasts for 5 years. You must call on the phone you want to register. You can also check out donotcall.gov.