Who called from 8087299897

This number called twice trying to get information from my elderly mother. When I explained they called the last 2 days the caller hung up on me before I could tell them to take our name off the list. I called the number back and got a voicemail.

[***] called 10× everytime I answered they were silent I called it back bs vm

Receive call from this number every day for the past week.  Message left on voicemail:  " Hi, is (my name) there?"   I block them.

I keep getting calls from this number at all times of the day, I finally answered one and I can hear background noise. After a few seconds they hung up.