In 12306 registered account will be reserved for mobile phone number, after the replacement of mobile phone number, need to modify in a timely manner in 12306, or purchase tickets after the ticket will not receive the notification message.
1, Baidu 12306, in search results find 12306 official website link, click to enter 12306 official website.
2, click the login button at the top of the page, enter your own 12306 account login in the login box.
3, after the successful login, click on my 12306, in the Drop-down menu click to view personal information.
4, in the menu on the left, click the account security.
5, in the Account security options, click the phone binding next to the Modify button.
6, in the mobile phone binding page, enter a new mobile phone number, and then click the Confirmation button to complete the binding phone changes. Later in 12306 after booking by the new mobile phone to receive SMS notification.