Who called from 5737754538

Keeps calling when you answer no one says anything, if i miss call no message is left --these people need to stop this is my cell phone

They have been calling for days now. i have caller ID so do not pick up. They never leave a message. Driving me Insane.

I missed a call from this number and no message was left.  When I call the number back it doesn't ring through or anything; it just disconnects.  Caller ID only showed the number.

Calls often and never leaves message, all times of day, but quits before 10PM........No answer when called back from other lines. Internet say a Missouri location

I called back the number - it is a research company.  Surveys or something.