It is not clear whether the reserved mobile phone number of the Agricultural Bank of China can be changed at a counter in another place. However, if it is a k-bao or k-ling user who has opened online banking, the reserved mobile phone number can be changed on the online banking. Including mobile banking, mobile phone numbers can also be added on online banking.
The reserved mobile phone number for my Agricultural Bank of China bank card was modified by logging into online banking from another place.