Who called from 2109781835

I get a call from here almost daily on my cell phone. Since I do not know the number I do not answer. They never leave a message. I tried calling it back from a landline and get a recording saying the number is disconnected. If it is disconnected, why is it calling me every day!!!

They call from this # almost daily for the last two months and will not leave a message and will not speak if you answer the call

I experienced the same situation with this number.  They left me no message, and when I called back a recording said it was disconnected.

I too continue to receive a call from this number with no message being left.

I aim tried of recieveing these calls for a long time. What do they want. Can you help?