How to check whether the mobile phone number is down?

Hello, you need to open the phone settings to see if the phone number is down.

Method 1:

1. Open the phone settings and enter the options about the phone;

2. Find the column of equipment information and check the telephone number.

Method 2:

1. Open a message and create a new message for a friend. The source of the information received is your phone number;

2. Call the other party, and the caller ID is your own number.