Who called from 2812310004

I keep getting calls from this number and it's a man stating, hello, hello I can't hear you - and then the call disconnects.

twice i've been called by this number,,, some man saying hello I can't here you

I recieved a call from this number and they hung up on me so I called back. It was about a free $100 gift card. What a crock and they called at 8:45pm.

I keep getting calls from this number and when I say hello, the person will hang off.