There are some things to do to change the phone number.

Now there will be import and export functions of contacts in the settings of the mobile phone. You can use this function to quickly complete contact backup.

You need to pay the arrears. If there is a balance, you can transfer the balance to another number. No downtime is allowed during the agreement, and the mobile phone number of business such as sales number cannot be processed.

Things that bind mobile phone numbers can be roughly divided into the following categories:

Bank card (going to the counter), credit card, Alipay, WeChat payment, QQ wallet, Jingdong wallet, Baidu wallet, Tenpay, lending software, etc.

QQ, WeChat, Weibo, Zhihu, Renren, skype, etc.

E-commerce platforms: Taobao, Tmall, JD.COM, Dangdang, Amazon, Suning, Micro Store, 1 Store, Jumeiyoupin, Ke Fan, Xiaomi, Gome, etc.

Group purchase: public comment, Meituan, Baidu glutinous rice, Juhua, Cat's Eye movie, Time Network Mtime, Guevara, etc.

Takeaway: Hungry, Meituan Takeaway, Baidu Takeaway, etc.

Travel: Uber, Didi, Shenzhou, Yi Dao, mobike, ofo, Xiaoming, Bluegogo, 12306, Ctrip, Qunar and Tongcheng.

Education: large-scale open online course network, geek college, Coursera, etc.

Sports category: Keep, etc.

Music category: Xiami Music, Netease Cloud Music, QQ Music, Cool Dog, Baidu Music, Apple Music, etc.

And fitness cards, membership cards, loyalty cards, beauty cards and other cards associated with mobile phone numbers.

Although many of these can't be paid directly, they will reveal personal information such as name, phone number and address.

Carefree Future, Zhaopin.com, Chinese Talents, cjol, China, Job Search Network for Fresh Graduates, etc.

Douban, Zhihu, Impression Notes, Zhihu Notes, etc.

WOW, LOL, ow and so on.

Gmail, outlook, 163, 126, etc.

Mobile phone numbers reserved by various departments and so on.

Xue Xin. Com, Baidu's unified account, etc.

Write it at the end. It's getting more and more troublesome to change your mobile phone number now. We'd better register by email, not by mobile phone. In addition, you can prepare a trumpet, which is mainly responsible for binding all kinds of unimportant information.

What else haven't you written? I hope you can leave more messages.