I called the number back and it is a World Vision hotline. They were calling to thank me for supporting a foster child and to inform me of a need for more sponsors for kids in Bolivia.

Called received today,
without leaving a message
First time happening to my knowledge!

Was on the other line, could not see the caller info on the display!

Has called me couple times...called twice in a row today.  Don't bother picking up the phone.

Could hear a room full of activity but caller hung up after a few seconds without saying anything.  I suspect they were phishing for active numbers.They won't bother me again as the number is blocked.

Saw the number.  No name.  Looked it up and saw from the below postings that it might be World Vision.

I also sponsored a child, and now get calls every so often from World Vision requesting more funds for urgent crisis around the world.

The called me today without leaving a message.