Who called from 2033552103

someone called my daughters phone from this number. they said nothing and listened to her say hello several times and then they hung up. i called the number back and they wouldnt answer.

Just happened to me as well. What's that about? Are they gathering information?

same thing just happened to me and i googled it and got this. not sure what it was but it's annoying

Just got a call from this number. No response. Tried calling back a few times but no answer.

Got a call from this number on my cell phone. I kept saying hello and nobody said anything. Person stayed on line for 11 seconds and then hung up.