Unknown caller issue, no number and can not answer the call.

[Android Central Question]

I keep getting unknown caller several dozen times a week at all hours. There is no number left on the call log so I have not been able to block the calls. The call can not be answered even if I try and there is never a message left. My phone is a Samsung A11. Do I need to get a new number to make the calls stop. I have tried several call blocker apps, none have been able to stop the frequent "Unknown caller" message. Is there an App or suggestion to help. Turning off or airplane mode does stop the calls..

 

[belodion]

Have you spoken to your carrier about it?
https://forums.androidcentral.com/showthread.php?t=409154

 

[mustang7757]

Try dnd (Do Not Disturb) customize only contacts to ring your phone

 

[B. Diddy]

Welcome to Android Central! Or if the main annoyance is calls at night, just schedule DND to turn on during sleeping hours.

 

[ManiacJoe]

Check your settings in the dialer app to see what are available for blocking "private callers" (no caller ID sent).