My Unicom mobile phone number has not been paid for several months. I can't get through to this number, but I can still receive text messages. What happened?

Unicom will give you a cancellation number if the mobile phone is in arrears for more than three months. Unicom's mobile phone number is divided into prepaid and post-paid users, and post-paid users will cancel your number after more than three months. Prepaid users need to see what cycle your phone has entered. The cycle is divided into three cycles, namely, validity period, recharge period and lock-up period. The lock-up period will not be cancelled until after. I suggest you call the customer service center to check.