Please cancel this number from calling with no answer at any time.

This number keeps calling me over and over. I have not picked up yet. They have called 3 times in one day. They have called at least 5 times in this past month. I searched the number and apparently it's from Illinois. I have no idea who they are. Probably scammers.

This number is calling multiple times a day and calling back returns a msg that the number is not in service.

this number calls multiple times a day and leaves no msg. by habit, I do not answer any number I do not know.

The company is not legitimate - they call and if you answer a foreign accent caller tells you they are from Microsoft and that they have data that you have lost 35% of internet speed and want permission to go in the back door to fix your computer.  My friend received  such a call and she just put her phone down and let them think she was interested.  After about 5 minutes she told them they are idiots to think she would fall for this.  A week after she received such a call it was my turn.  I answered and told them I had already reported them and hung up.  I then went into my account and blocked their number.  If you have the blocking option use it.  I did.  BTW if you don't answer they will just keep calling back - if you do answer they will call back using a different number but in the same area code.