The mobile phone number has been cancelled. Can you call customer service?

Of course. The customer service of the mobile phone operator is mainly responsible for answering the manual hotline and handling all kinds of electronic channels, including telephone hotline, online customer service, SMS, MMS, mobile phone number cancellation and loss reporting, email, etc. Mobile phone customer service has the service of canceling the loss report of mobile phone number, so calling customer service can cancel the mobile phone number.