


If you sign up for multiple lines used by your family or other people under a designated rate plan, the basic monthly fee for each line from the second line onwards will be discounted by 550 yen or 1,100 yen per month. (Discounts apply to up to 9 lines.)
This also applies if one person subscribes to multiple lines.
You can only apply for a family discount on the online store if the new line you are signing up for is to be a secondary line.
The following people cannot apply through the online store:
Please apply through My Y!mobile after signing up for the line.
The conditions are that we can verify that you are family (by blood or marriage) or live at the same address.
You will also need family identification documents to complete the procedure.
The documents required will vary depending on the procedure. Please select the applicable item and check in advance.
To apply for a family discount on the online store, you will need to upload the following documents:
After selecting the Family Discount Service, please enter your application information for the Family Discount Service.
To apply for a family discount on the online store, you will need to upload the following documents:
After selecting the Family Discount Service, please enter your application information for the Family Discount Service.
To apply for a family discount on the online store, you will need to upload the following documents:
After selecting the Family Discount Service, please enter your application information for the Family Discount Service.
After signing up, you will be able to access the member support site (My Y!mobile) exclusively for customers, where you can check your usage fees and contract details.
You can also apply via My Y!mobile.
After logging in, select the Family Discount Service from the Contract Confirmation/Change tab and apply.
Click here for detailed procedure