I keep getting repeated phone calls from area code 303 , exchange 484. This is same as my land line exchange number.
The last 4 digits that keep calling are changing and since there are 10,000 diferent numbers there is no way for me to block the calls since wild card (****) is not allowed for me as a user. I am registered with nomorobo but obviously the service does not detect these 10,000 as robocalls. Can someone help, without the option of changing my own line number?