Store Locator

I would like to know how to change from a 4G LTE contract to a 5G contract

Please check the details below.

If you want to change to eSIM

Procedure from My au or iPhone

When changing from SIM card to eSIM, you can change to a 5G contract using My au and iPhone.

For details and procedure instructions, please see the "Reissue" [再発行] section here. (in Japanese only)

(For details on eSIM, please click here)
If you want to continue using SIM card

In case of procedures at the shop

Your SIM card will be replaced.

Click here to search at the shop

In the case of procedures by calling the Customer Center

SIM card will not be replaced.

It may take some time for the process to be completed at the customer center. If you are in a hurry, we recommend visiting

the shop.

If you are using iPhone 7 or iPhone SE (1st generation) or earlier, you need to replace your SIM card at the au Style/au shop.
Contact Information

For au Customer Center click here

Business hours
au: from 9:00 to 20:00 (open all year round)

For your reference

There will be a fee of 3,500 yen (including tax 3,850 yen) to change from a 4G LTE contract to a 5G contract.

Has your problem been solved?

All of the indicated amounts exclude tax unless otherwise specified.