Who called from 3309728113

Received a call from this number & a male said something to someone in the background & hung up.

This number has called me twice randomly and never leaves a message.

This number is suspicious, has called before and never leaves a message.

It is the University of Akron alumni looking to update information and get money. They didn't leave a way to opt out of receiving phone calls though.

This number called me about 2 minutes ago and didn't leave a message. I silenced it because I didn't know who it was. Should I expect a call again?