Who called from 7184526281

I have received several calls from this number in the past week. A message is never left on my cell phone.  Every time I try to call it back, it says the number is not in service at this time.  Any ideas who or what this might be?

Same as whyrucalling.  Only cell phones calls, I finally asked Verizon to block the calls

Same thing here - lots of phone calls, no message, number not in service.  It is aggravating and would love to stop them!

The company is American Debt Settlement Solutions.  The phone number is not a real number and when I asked for their telephone number the guy told me that they don't have a number that anyone can call as they are too busy.

can someone please stop this people.