Whether the supplementary card can be transferred to a child’s name needs to be analyzed based on different circumstances.

If a parent has a supplementary credit card, usually the supplementary card can be transferred to the child. However, before going through the transfer procedures, you need to understand the specific regulations of the credit card issuing bank. Some banks may stipulate that you need to pay a certain handling fee to transfer an additional card, or you may cancel the secondary card and then reapply for a new secondary card. Therefore, before going through the transfer procedures, it is recommended to consult the bank customer service to understand the relevant fees and procedures.

If the mobile phone supplementary card is an accessory product of the mobile phone package, generally it cannot be transferred to the child. Because the mobile phone's secondary card and the mobile phone's main card are bound together, all charges are deducted from the main card's phone bill. If you want to transfer the secondary mobile phone card to your child, you need to transfer the main mobile phone card to your child at the same time. However, the specific transfer regulations may vary depending on the operator and package. It is recommended to consult the customer service of the mobile phone operator to understand the relevant regulations and procedures.

In short, whether the supplementary card can be transferred to the name of the child requires detailed analysis of the specific circumstances. If important matters such as credit cards and mobile phone plans are involved, it is recommended to consult the bank or operator customer service first to ensure that you understand the relevant regulations and procedures.

I hope the above content will be helpful to you. If you have any other questions, please consult a professional lawyer.

Legal basis: "Provisions on the Registration of Real Identity Information of Telephone Users"

Article 3 The registration of real identity information of telephone users as mentioned in these regulations refers to the fixed registration procedures handled by telecommunications business operators for users. Network access procedures such as telephone and mobile phone (including wireless network cards, the same below), and the activities of truthfully registering the true identity information provided by the user when signing an agreement with the user or confirming the provision of services.