The mobile phone stopped before. After consumption, I said that the number was invalid, so I couldn't make a phone call or send a text message, but I could surf the Internet. What happened?

According to the operator's regulations, when the general downtime (including overdue time) reaches 6 months, the number will automatically enter the number waiting list, and the number will be re-assigned without objection within 3 months. Your situation should be that the number has entered the waiting list. You can go to the business hall to renew the number, but you have to pay the previous arrears or negotiate to return your latest prepaid phone bill. It will take a long time, so you must be patient.