FWIW - the CharityNavigator linked to by "Smarter than", below, finds at least 22 organizations with "breast cancer" and "awareness" in their names -- all unrated, though many quite legit-looking.  (Naturally, THIS one is NOT legit, as the unavailable ID proves...)

These creeps keep calling me. I told them to remove my name from their calling list but they keep calling.  It is my understanding that they are an illegitimate company.  Please stop these people!  The number is 413-306-4014

No one here at 800notes can stop those people.

You will have to get a blocker.
For landlines, this forum thread has suggestions and more links within 800notes :
http://800notes.com/forum/ta-ae7fb1decae9014- ... -any-do-you-use

For a cell phone, if you are using a smart phone, there are apps that can block specific numbers, area codes, and maybe non-numbers. If you are using a dumb phone, you should assign this number a name, or to a group, like zz-junk, so that when these people call again, the name you assigned lets you know to ignore it or force the call to end. Also, never answer numbers you do not recognize.

Let the call go to voice mail. If the call is really important, the caller will leave a message.
Then you listen to the voice mail and decide if the caller is important or not.