They called my office number.  Saw it come up on caller id.  Since I did not recognize the area code as being anyone I work with, I let it go.  They did not leave a voicemail.

Missed call, no mesage left.

I am unlisted, and have received 4 calls from this number in 24 hours. I did some research, and it is registered to Grp Focus.  They are a tele-marketer based in Laurel, MT.  This is only one of several outgoing tele-marketing lines they have.  They have it set up so you can't call them back. If they call, DO NOT  answer the phone, once you answer, they know it's a good number and will sell it to other companies.   I have an unlisted number, and now I get calls from all kinds of out of state numbers.  My opinion is that I told some tele-marketer I wasn't interested, and then they sold my number.  If you don't recognize a call on caller ID, don't answer.  If it is something important, they will leave a message. Annoying, but otherwise harmless.

Received a call from this number.  I didn't answer.  They didn't leave a message.

Missed call, no mesage left.