Received call from this number on my cell phone...left no message...and I was unable to return the call

THEY CALL HERE EVERY DAY AND ITS ANNOYING

Is there a way to stop the calls? they are coming into my cell and eating my minutes. I'm not a realtor and don't know how they got my number.

That is correct.
This is a LEADROUTER generated call from a computer.
If you try to call it back, you need a REALTOR's PIN number to log in.

This is a lead router system used by Realtors. If you are a Realtor and belong and use the The Router Service this number calls you to leave you a lead. If you don't pick up it goes to another agent. Hope this helps.