Unicom's number, automatically cancelled due to arrears, became an empty number. How to recover? Is it possible to solve the problem on the spot?

Under normal circumstances, if Unicom's mobile phone number is officially cancelled for more than 90 days (including overdue cancellation and active cancellation), it is impossible to apply for cancellation and reinstallation. If it is within 90 days, you can bring your valid certificate to Unicom's own business hall to apply for reinstallation (the number can be handled at the place of origin or in the business hall of Unicom in different places) and re-use the original number to access the network. If you cancel your account due to arrears, you need to pay the arrears when you apply for cancellation.