If my Unicom number is down, can I still send and receive messages?

1, if the mobile phone number is in arrears but not stopped, it will not affect the functions of making calls, surfing the Internet, sending and receiving short messages, etc. 2. However, if the mobile phone number is down due to arrears, you can no longer surf the Internet, make phone calls or send and receive text messages. You need to pay a fee before you can resume the functions of surfing the Internet, making phone calls and sending short messages. If the above situation is ruled out, it is recommended to contact the local manual customer service for handling.