ワイモバイル契約者限定！もう1回線おトクなキャンペーン実施中！ワイモバイル契約者限定！もう1回線おトクなキャンペーン実施中！
For those considering
First Contract
Switching from another company
For current users
Switching models
Applying for a second or subsequent line

Information on various procedures that can be done at home

Application

 

New contracts
Transfer
 

Switching models

Online Store

User Guide

Various confirmations and procedures

  • If you are new to online procedures, we have prepared a guide for online procedures. For details, click here.
 

Check your usage fees
 

Adding Data Capacity
 

Change of rate plan
 

Changes to optional services
 

Change of address
 

Change payment method
 

Check remaining data
 

Inquiry about contract details
 

Family Discount Service
Application/Cancellation/Inquiry
 

Home Discount Hikari Set
Application for (A)
 

Change of surname
 

Changes to user information
 

Breakdowns and Repairs
 

SIM reissue
 

Checking and changing the payment status of your device
 

MNP transfer/cancellation
 

inquiry

Procedural support

How to set up your smartphone

 

Initial Setup Method

How to apply for My Y!mobile

You can check and change the contract details from your smartphone or computer.

 

Check/change information [Video]

Most viewed pages

 

My Y!mobile
Log in
 

My Y!mobile
User Guide
 

Smartphone
Initial Setup Method
 

FAQs
 

inquiry
 

Online Store

User Guide

Product Support Information

 

iPhone
 

Smartphone
 

tablet
 

Mobile phone
 

Pocket WiFi®
 

USIM card

Please check here for various confirmation and procedure methods.

Contracts, changes, cancellations, and transfers

 
See more

Online Support

 
See more

Confirmation and change of contract details

 
See more

Billing and Payment

 
See more

Troubleshooting

 
See more

Construction and Disaster Information

 

Please cooperate with the survey

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