What is the reason why the mobile phone number can't receive SMS?

There are many reasons why the mobile phone number can't receive SMS, as follows:

The cell phone signal is not good, which leads to the abnormal reception of short messages. Check the cell phone signal. If the signal is not good, you can move to a better place or change the location to ensure the stability of the mobile phone signal.

Mobile phone settings, such as SMS filtering, SMS interception and other issues, check the mobile phone settings, turn off SMS filtering or SMS interception and other settings.

The memory of the mobile phone card is insufficient to receive new messages. Clear the memory of the mobile phone, delete some unnecessary applications or files, and free up storage space.