Robo-caller. Woman's voice; said it was a courtesy call from some breast cancer research and development organization. They were actually looking for my father. Most likely seeking a donation. I hung up when I realized it was a machine.
Answered and they asked for "Lance". Said wrong number. Caller said "Oh, maybe you can help me then" and launched into a fundraising pitch for breast cancer research. I asked where they got my number and she said they buy cell phone numbers.
I called the number back and I got an answering machine saying, "you have reached the donation hotline please leave your number" something like that...