If I immigrate, can I still use my domestic ID card to handle my mobile phone number? Sometimes if you have to live in China for a while.

If you have emigrated, you can apply if you still have China nationality. If you give up your nationality, you can't use your domestic ID card to handle your mobile phone number.

On the issue of household registration, China adheres to the principle of one nation. When we give up our nationality, we give up everything we enjoy at home.

If you immigrated but didn't give up your nationality, then your original ID card and household registration information are valid and you can apply for an ID card.

If you give up your nationality directly after emigration, it will be a pity that you can't get your mobile phone number.