For those who often travel abroad or do business, they will want to change the local SIM card to access the Internet after getting off the plane. This is currently the most common way to save communication costs. However, many people are curious whether changing the SIM card will cause LINE to be unavailable. Woolen cloth? It may cause LINE chat conversation records to be cleared. LINE officials have also come forward to explain this kind of problem of changing SIM cards abroad.
Can I still use LINE if I change my SIM card abroad?
LINE officials stated that as long as you do not change mobile devices or log out of your LINE account, LINE can be used normally when there is an Internet connection. This also means that changing the SIM card will not affect the operation of LINE, the original friend list and chat. The records will not disappear either.
In fact, LINE is an instant messaging software based on the Internet, not a phone number software. As long as the phone can connect to the Internet, you can use LINE, so changing the SIM card will not affect the phone’s ability to connect to the Internet, nor will it affect the phone’s ability to connect to the Internet. Use of LINE.

Will LINE chat history disappear if I change my SIM card?
LINE chat history will be stored on the mobile phone and backed up on the cloud server. Even if you change the SIM card abroad, the LINE chat history will not disappear. It will also be saved in the LINE App and the chat will not be cleared after changing the SIM card. Record.

Under what circumstances will changing the SIM card affect LINE and make it unusable?
Unless you want to live or study abroad for a long time, you will need to change your LINE account to a foreign phone number. You can use the following two methods to handle it so that your LINE account will not be affected:
Change phone number to Japan/Thailand/Hong Kong/South Korea/Taiwan
LINE officials recommend that if you change your new phone number in countries such as “Japan, Hong Kong, Thailand, and South Korea”, it is recommended to bind the original LINE account with an “email account + password” and back up the conversation records, and then reinstall the LINE App. , to log in with the new phone number, enter the change “Country and New Phone Number”.
After changing the “country and new phone number” of your LINE account, the basic user interface will not change, but depending on the country, some devices may display “News” instead of “TODAY”, and some functions and services may only be available in Available in select areas.
For example, region-limited stickers or LINE social functions are only available in Japan, Thailand and Taiwan, and are temporarily unavailable in other countries or regions.

Change phone number to another country
If the mobile phone number is not from “Japan, Thailand, Hong Kong, South Korea, Taiwan”, the current LINE official system cannot directly change the phone number bound to the account, which is equivalent to applying for a new set of new foreign phone numbers with a new one. LINE accounts, contacts and chat history cannot be transferred.
How do I change my LINE account if I want to change my Taiwan mobile phone number?
If you originally have a Taiwan LINE account and just want to change your Taiwan phone number, you can directly change your phone number in LINE settings through the following steps without changing your mobile phone device:
- Open LINE App “Settings”
- Select “My Account”
- Click “Phone Number” to change the new phone number.

Summary of things to note when changing SIM cards LINE abroad
- If you use LINE to travel abroad or on business for a short time, changing the SIM card will not affect your LINE account, nor will the chat history disappear, and there is no need to change to a foreign phone number.
- Some countries or regions may restrict LINE network access, so it is recommended that you check local network conditions in advance and prepare alternative communication methods.
- If you live in Japan, Thailand, Hong Kong, South Korea, and Taiwan for a long time, you need to change your LINE phone number. Be sure to back up your chat history first, and reset the phone number of your LINE account after changing the number.
- If you change your phone number to a country other than Japan, Thailand, Hong Kong, South Korea, or Taiwan, you will need to register a new LINE account. You cannot modify your phone number through your existing account.
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Reference sources:LINE