How to change the SMS phone number of Nanjing vehicles violating regulations?

In order to facilitate car owners to change their mobile phone numbers, the traffic control department has expanded the service window, and all districts and counties, traffic management windows of traffic police brigades, traffic police service supermarkets in various communities, motor vehicle registration service stations and online vehicle management offices can handle it, except for the change of contact information in the business hall window of the vehicle management office (detailed address table). In case of on-site change, the motor vehicle owner shall submit the motor vehicle owner's identity certificate (copy of ID card) and vehicle driving license, fill in the Application Form for Motor Vehicle Change Registration/Filing for confirmation, and handle the registration change business. If it is entrusted to others, it must also provide the power of attorney of the owner of the motor vehicle and the identity certificate of the principal and the principal. If you need to make online changes, you can log in to Nanjing Online Vehicle Management Office (website:) and submit information such as vehicle license plate, license plate type, vehicle identification code (frame number) and owner's name online for confirmation, and handle the registration change business.