No, under normal circumstances, the mobile phone number reserved by the bank cannot be modified online.

You need to bring your ID card and bank card to the corresponding bank counter to apply.

According to bank regulations, bank reserved numbers cannot be modified online. You need to bring your ID card to the bank counter to make changes. Because when logging into online banking, mobile phone verification is generally required, so for security reasons, most banks will require users to go to the counter to make changes.

A small number of banks can modify it on the bank APP.

The modification method is as follows:

1. Online banking: User Apple 12, ios14, Industrial and Commercial Bank of China 6.1.1.0.0

Log in to your own online banking , find the corresponding personal information page, and then modify your mobile phone number.

2. Customer service hotline: Call the bank customer service hotline directly to indicate that you need to change your mobile phone number. The change can be successful after the bank customer service confirms the user's personal information.

3. Mobile banking: Most banks have their own mobile banking APP. After logging in, users can find their personal information section and modify it.

Because changing a mobile phone number is a very risky operation, it is still recommended that you go to the corresponding bank counter to change the reserved mobile phone number. Online banks will also be very strict about this.

The mobile phone number bound to the bank card needs to be canceled, which will affect the bank card.

Before canceling your mobile phone number, you must unbind various accounts. This involves a problem. Before deactivating or canceling your mobile phone number, you must unbind the various online accounts you have previously registered with that mobile phone number. , the more common ones include WeChat, bank cards, Alipay, user accounts of various mobile phones, etc. Otherwise, it will be very troublesome if there is a problem later. Is it better to cancel a mobile phone number proactively or automatically after downtime? Generally speaking, if the three major operators do not pay the user within 60 days after the phone is shut down, the telecommunications department has the right to take back the number and cancel the account. Moreover, the number can be allocated twice. This issue is also mentioned in Article 35 of my country's Telecommunications Regulations. If there is no payment for a total of 90 days, the service will be terminated. This kind of cancellation is actually a passive cancellation.

Bank cards cannot be bound to WeChat or QQ Wallet, nor can they be bound to bank cards. The bank card itself loses its unique functions. Therefore, it seems that the reserved numbers of bank cards that are not in use still need to be changed to facilitate daily use. To modify the reserved mobile phone number of a credit card or debit card, the usual channels include online banking, telephone banking, and counter modification. However, some banks only accept cardholders who bring their ID cards to the counter to modify the reserved mobile number.