Rec'd 4 calls in one morning (today) from this number.  When I call back it says its out of order.

I get calls from this number almost daily and somedays, more than once. I too have tried to call back and get a reply that the number is not in service. I have added it to my auto reject list.

We get the call daily and it does nothing but  beep beep beep on the answering machine. NEVER a message

Receive a dead air call from this number 2 to 3 times daily.  Filed a complaint with the FCC.  Hoping this will help.  Small business (very busy phone lines) and so sick and tired of this call.

Ok...now this number is slamming all my phone lines at once.  Filed two reports with the FCC and just got off the phone with them.  They are aware of this number stating it's Credit Card Services.  Didn't give any additional information, except Credit Card Services.  
So...I am now waiting for an email with further steps to take to shut these annoying sob's down forever.  I suppose I could block this number but why do I have to pay to block these bast***s? Small business...call block isn't free!
I suggest everyone else that is being harassed by these people file an online complaint with the FCC and follow up with a call.  It's the only way we can stop this.