Who called from 2020623215

Not even a valid phone number. Phone numbers don't start with zero.

This caller continues to call even after multiple times of telling them not to call anymore

They keep calling and hang up when I answer. they call 4-5 times a day even on weekends. I get a busy signal when I try to call them back

Calls several times per day. I tried to block the number but couldn't because 0 as a fourth digit is not valid. Very annoying.

Constantly calling. No messages left. Annoying!!!