Who called from 4143750556

Called several times. Always a hangup.

I continue to get called from 414-375-0556. I do not answer since I dont know the phone number. They never leave a message - therefore it is not important. When the phone goes to the answering machine, they hang up

Fundraising call for political and non-profit.  Allows option to sign up for do not call list if you call back.

I keep receiving calls from this number at all hours of the day.  I do not answer as I only answer calls when I recognize the name on my caller ID.  I have all of my phones listed on the do not call list and would really like these calls to stop.  I do not do surveys,  I do not have any money for solicitors, so therefore I do not answer unless the name is familiar.  How do I get the message to them without answering. Thanks.