Mobile number carrying telecom cannot receive verification code.

Does the subject want to ask "why the mobile number carrying telecom can't receive the verification code"? The reason is the network problem. The verification code is sent to the mobile phone by SMS. If the network signal is bad or the network is out of order, the verification code will not be received. Just check the network connection or try to resend the verification code where the network signal is good. Number portability means that a mobile card can be changed into a telecom card, and the number remains unchanged.