Who called from 2072091400

Female caller to my home phone advising she was raising money for "Cancer Survivors Network, a worthwhile cause".   I received a call to my cell phone from this organization a few days ago.

Received a call from this number, nobody there when I answered.

number calls never leaves number. or message.

I didn't pick up because I'm not familiar with the number. First time they've called here.

The woman continues to call