After the port number is transferred to the network, the balance cannot be found when charging Unicom.

There may be many reasons why you can't find the balance when you charge Unicom after the port number is transferred to the network. Here are some possible reasons:

1. Not using Unicom service: If you don't use Unicom service, you may not be able to find the available balance in Unicom online business hall or mobile phone business hall.

2. Incorrect service password: If you use your mobile phone number and service password to log in to Unicom's online business hall or mobile phone business hall, but you can't find the available balance, it may be because the service password is incorrect.

3. Not yet synchronized: Sometimes, your account information may not be synchronized by the system, so you can't find the available balance.

4. Incorrect query method: If you use the query code "CXYE" or "YE" to 100 10 to query the phone bill balance, but you can't find the available balance, it may be because you didn't use the correct query method.

If you can't find the available balance in Unicom's online business hall or mobile phone business hall, I suggest you try to inquire by other means, such as sending "CXYE" or "YE" to 100 10 to inquire about the phone bill balance, or contacting Unicom's customer service for consultation.