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For US Military Customers in Japan Online Sign-up Guidance

  • Service Guide
  • Device Setting Guide
  • FAQ

Prices include tax unless otherwise noted.
Owing to consumption tax calculation, prices may differ from the invoiced amount.

Top Three Reasons for choosing Y!mobile

3GB for fast internet service and calling
SoftBank Network is Wide, Fast and Comfortable!
Family Discount
  • 3GB for fast internet service and calling
  • SoftBank Network is Wide, Fast and Comfortable!
  • Family Discount

Price Plans

The basic charge is guaranteed to never increase! Every plan is 5G applicable

5G with a high-speed and a large-capacity (new frequency) is offered in a limited area. Please go to area map for details (▶ymobile.jp/s/5garea).
You are required to prepare 5G device to use 5G communication.

  • [Data Carry-over Option]
  • • Simple S/M/L subscribers can carry over to the next month any data allowance on their plan (including additional data with Extra Data Option) remaining after deducting the data used in the current month (discarding fractions of 100 MB).
  • • Only the standard allowance and any increased data allowance from extra data options can be carried over; additional data allowance purchased by an application to restore normal speeds cannot be carried over. Fractions of 100 MB in the data to be carried over are discarded.
  • • On share plans, data can be carried over while sharing data allowance with the primary connection (while sharing applies). However, the data allowance for the month before sharing with the primary connection begins and any data allowance remaining in the last month when sharing is canceled cannot be carried over.
  • • Data allowance is used in this order: Carried over data → Standard data allowance (including additional data with Extra Data Option) → Additionally purchased data allowance.
  • *1 [About 5G service]
  • • Service areas for 5G is initially limited, some users may stay in using 4G service in the main.
  • • It is best to check 5G available areas on the website (https://ymobile.jp/s/5garea) before device purchase. Even if your device shows 5G on the screen, it may switch to 4G when you start communication.
  • • In 5G service areas, transmission speed may be reduced compared with that of initial status as users increase in the future.
  • *2 Family Discount Service that is applied from the second or subsequent lines is ¥1,188/month. This service cannot be applied together with Home Bundle Discount Hikari Set (A) .
  • *3 [Data Usage] If you exceed your monthly data allowance (3GB/15GB/25GB), the speed is reduced to 300kbps in Simple S, up to 1Mbps in Simple M/L, for both transmission and reception. You can purchase additional data for ¥550 per 0.5GB to go back to the original data speed. Please go to My Y!mobile account to apply.
  • *4 Charges vary depending on the number of characters. For more information (▶ymobile.jp/r/sms/)
  • *5 [Extra Data Option Free Campaign 2] First time applicant for Extra Data Option (¥550/month) will enjoy 12 months free of charge from the following month of subscription. During the month of application, discount is applied as an extra privilege. For using the increased data amount by Extra Data Option, self application is required to go back to the normal speed.
  • *6 When you subscribe Simple S/M/L, Super Daretodemo Teigaku for Smartphone Basic plan will terminate.
  • *7 [Note for Daretodemo Teigaku and Super Daretodemo Teigaku (S)]
  • ※ The free calling benefit will not be applied for the calls below. International roaming, international call (calls to overseas phones), calls to Voicemail (1416), calling rates for call forward service, Navi-dial (0570), Tele-dorm (0180), call assistance (104), other some phone number that we especially designate and publish (▶ymobile.jp/r/telephone/), etc.
  • ※ The company reserves the right to end any call that continues for an unusually long period of time.
  • ※ Regarding calls to phone numbers specified by company and announced (▶ymobile.jp/r/telephone/), or call forwarding services (calls made by a telecommunications service phone numbers owned by other telecommunications carriers [hereinafter "forwarding source phone numbers"] to other phone numbers provided by a telecommunications carrier that has a forwarding source phone number for making calls as the main purpose), such calls are not applicable for free calls of this service, therefore, call charges according to the price plan you are using will be applied.
  • ※ We have the right to terminate or discontinue service on calls we regarded as unusual activity. When connecting other device or equipment without prior consent from us. When in used for the purpose of earning income directly such as communication intermediation, forwarding function, or connection to services provided by other companies. ·Calls made automatically using software and computer programing, excluding those provided by us or our authorized telecommunication carriers. ·Communications used for purposes other than calling.
  • *8 If you are 60 years old or older at the time of execution and subscribe Simple S/M/L, monthly charge of Super Daretodemo Teigaku (S) (application required) is covered with discount. Not available with “Domestic Call Discount Campaign when Changing Contracts to a Mobile Handset/Smartphone.”
  • ○Contract administrative charge of ¥3,300 and Universal Service Charge will be charged separately.
  • ○If any campaigns or discounts seen here are terminated, there will be a notification on Y!mobile website.
  • ○The discount amount of these campaigns are calculated by the basic fees excluding taxes.
  • ○Terms in this promotion may change at any time without notice.
  • ○The information provided is as of March 30, 2022.

Discount Service

Family Discount Application Required

※ Family Discount Service and the Home Bundle Discount Hikari Set (A) cannot be applied together.

Family Discount Service
Family Discount Service

From the Second Line(and multiple lines)

  • ※ Simple S/M/L, Pocket Wi-Fi Plan 2 (Basic), and Data Basic Plan L are applicable for enjoying Family Discount. Share Plans are not applicable.
  • In the case of Pocket Wi-Fi Plan 2 (Basic), and Data Basic Plan L are applied for Family Discount, the discount amount will be 550yen per line.

■ Application Requirements

  • ● Family Discount is applied only for individual account, Corporate accounts are not eligible.
  • ● An identification is required for each family member for application.

■ Notice:

  • ● Family Discount cannot be applied together with Home Bundle Discount Hikari Set (A) and its special application offerings, Hikari Special Discount, Hikari Special Offerings, and Wi-Fi Set Discount.
    In cases (1) through (3) below found, the application of the discount will end in the month.
  • (1) If the contract of main line or subsequent lines are terminated
  • (2) If the main line or subsequent lines are changed to other plans, the Family Discount will disappear.
  • (3) If the account ownership is transfered from an individual to a corporate.
  • ※ If you have multiple lines and the case of (1) through (3) are applied to partial lines, the Family Discount Service will only end for those lines that were changed.
  • • If any campaigns or discounts seen here are terminated, there will be a notification on Y!mobile website.
  • • The discount amount of these campaigns are calculated by the basic fees excluding taxes.
 

Home Bundle Discount Hikari Set (A)

  • Application Required

※Family Discount Service and the Home Bundle Discount Hikari Set (A) cannot be applied together.

  • ※ Applicable Payment Plans are Simple S/M/L, Pocket Wi-Fi Plan 2 (Basic), and Data Basic Plan L. Applicable number of lines for this discount are up to 10 lines per 1 line of the Fixed-line Internet Service. For Pocket Wi-Fi Plan 2 (Basic) or Data Basic Plan L, you will get a ¥550 discount.
  • ※1 [Example of subscription] SoftBank Hikari Family (If you cancel the service before your anniversary month of your contract period, you are required to pay ¥10,450 for cancelation fee.) Also you are required to pay ¥5,720/month and designates option charge (¥550/month or more) in addition.
  • ※2 The application for the Hikari BB Unit Rental (¥513/month), Wi-Fi Multipack (¥1,089/month), and White Hikari Phone (¥513/month) is required. The option set costs ¥550/month.
  • • If any campaigns or discounts seen here are terminated, there will be a notification on Y!mobile website.
  • • The discount amount of these campaigns are calculated by the basic fees excluding taxes.

Sign-up Guide

Payment Method (Options)

Monthly fees are required to pay by a credit card.

Payment with credit card(accepted credit cards)

Payment with credit card
  • ● You can use credit with one of the above logos.The owner of the credit card needs to visit the store.
  • ● Some credit cards may not be used to purchase certain models.

Initial Cost for Sign-up

Activation Fee Activation Fee

Cell Phone/Number Portability (MNP)

When changing from another company (including the SoftBank brand) to Y!mobile smartphones or cell phones, you can keep the current phone number by using the Cell Phone/Number Portability (MNP) or number transferring service.

STEP 1

Get an “MNP Reservation Number” from the cellphone carrier you are currently contracted for.

NTT docomo au/Okinawa Cellular Telephone Company Rakuten Mobile UQ mobile
(UQ Communications/
UQ mobile Okinawa)
From a cell phone or land line From NTT docomo
mobile phones: 151
From landlines: 0120-800-000
(Servive hours: 9:00–20:00)
0077-75470
(Servive hours: 9:00–20:00)
050-5434-4653
(Servive hours: 9:00–20:00)
0120-001-659
(Servive hours: 9:00–20:00)
From websites From My docomo
Procedures ▶ Cancellation, etc. ▶ Mobile number portability reservation ▶ Conduct procedures
(Servive hours: 24 hours a day)
From My au
(https://my.au.com/)
TOP ▶ Smartphones & mobile phones ▶ Contract terms/procedures ▶ Inquiries/procedures ▶ MNP Reservation
(Servive hours: 24 hours a day)
From my Rakuten Mobile
Three-line menu at screen top-right ▶ my Rakuten Mobile ▶ Contracted plan ▶ Procedures ▶ Switch to another carrier ▶ (Obtain MNP reservation number)
(Servive hours: 24 hours a day)
From UQ Mobile Website
Top ▶ My Portal ▶ Contract Terms ▶ View and Change Your Contracts ▶ Details ▶ Switch to Another Carrier
(Servive hours: 9:30–20:30)

STEP 2

Take your MNP reservation number and visit Y!mobile store.

※The MNP reservation number is valid for 15 days, including the issue date.

  • ※You will no longer be able to use the device you were using with your previous company. Upon termination of that contract, you will also not be able to use the relevant services, such as mail address, payment plans, discount services, contents and e-money services.
  • ※If you have a discount service on your yearly contract, you may be charged for early cancellation of the contract.
  • ※Handling charges as determined by the other carrier apply when transferring from another company. No MNP leaving processing fee or number transfer processing fee is payable when you leave or transfer your number from Y!mobile.
  • ※Depending on the customers contract, you may not be able to make reservations by phone or the internet (MNP reservations are done according to each company’s protocol).
  • ※When using the Mobile Number Portability (MNP) service, the contract with the pre-transfer carrier is cancelled the moment the transfer process is completed by the post-transfer carrier. In the event the transfer process is conducted during a period which is not the contract renewal month of the pre-transfer carrier, a penalty for breach of contract may be charged depending on the content of the contract between the pre-transfer carrier and the customer. Please be aware that when conducting the transfer process (MNP) via the Internet, time may be required for the transfer process to be completed.

Documents for application

■ Proof of identification (Foreign National)

Under the Mobile Phone Improper Use Prevention Act, you are required to present the following documents.

Please have the original documents with you. Photocopies are not accepted. The documents presented are not used for other than applicant identification. We may ask you to present one or more of the following documents depending on the contents of your application:

Residence Card + Foreign Passport
or
Special Permanent Residence Certificate
■ Document must be valid. 
■ Must have your current address written on it.
  • ※ If your current address is not on the document or not there at all, another document with your current address will be required.
  • ※ We do not accept residence cards with the residence status of“none”.
  • ※ Without the proper residence status, you will not be able to use Value Style or Double Value Select.
  • ※ If your residence status is Permanent Resident, you do not have to show your passport.
  • ※ For an up-grade, you do not need to show your foreign passport if you present your Residence Card.

■ Supplemental Documents

  • ● An original copy of a Certificate of Items Stated in Resident Register received within the last 3 months, a utility bill payment receipt proving you live in Japan(electric bill, gas bill, water bill, etc.), a document notarized by a municipality of Japan, a receipt from Y!mobile.
  • ● A document with your current address.

Important Notes on Data Service

PDF file

Y!mobile Customer Support (Only in Japan)

For general inquiries or technical support, contact one of the following numbers.

Business hours 10:00am-7:00pm(for general information)
From Y!mobile handset 151 Press “5” for English support
From landline 0570-039-151

Y!mobile Customer Support (From host country)

Business hours 10:00am-7:00pm(for general information)
From Y!mobile handset +81-44-382-0800
From landline 81-44-382-0800
  • ※ If you are calling from a landline from overseas, please dial the international access code in place of "+".

Using a SIM in your iPhone via Y!mobile

Setting Y!mobile with an Android smartphone

Using a SIM in your iPhone via Y!mobile

Set up iPhone APN

If you are unable to connect to the Internet (send and receive mobile data) using the latest version of iOS, follow the procedure below to set up your APN.

Download and install the iPhone APN setup configuration profile

STEP1

 

Connect to Wi-Fi or mobile data, and open Y!mobile official website in Safari.

STEP2

 

Tap「APN設定用の構成プロファイル」.

STEP3

 

Tap “Allow”.

  • ※If Select Device shows after your tap, please select “iPhone”.

STEP4

 

Tap “Close”.

  • ※Depending on your version of iOS, the screens in STEP4 and STEP5 may not be displayed.

STEP5

 

Return to the Home screen,tap on “Settings”, then tap on “Profile Downloaded”.

  • ※If "Profile Downloaded" is not displayed, tap “Settings” > “General” > “Profiles” > “APN”.

STEP6

 

Tap“Install”.

STEP7

 

When prompted for your passcode, enter it following the directions on the screen.

  • ※The passcode is a number (typically six-digit long) to be configured by the user for unlocking of devices.

STEP8

 

Tap“Install”.

STEP9

 

Tap “Done”.The setup is now complete.

  • ● There is no guarantee that the above steps will work for all SIM free-unlocked smartphones.
  • ● The image on the screen may differ depending on your device.
  • ● The screen images used were taken with an iPhone 12 (iOS 15).

When transferring SIM from another company

If another company’s profile is set up, you will not be able to install Y!mobile profile.Make sure to delete the profile.

  • ※ When deleting an APN configuration profile, emails and memos tied to that profile will also be deleted.If you require this data, be sure to backup these files before deleting the APN configuration profile.

Delete your APN profile

STEP1

 

Tap“Setting”.

STEP2

 

Tap“General”.

STEP3

 

Tap “VPN and Device Management”

STEP4

 

Tap the confirmation for another company’s SIM profile.

STEP5

 

When the profile screen comes up, tap“Remove Profile”.

STEP6

 

When prompted for your passcode, enter it following the instructions on screen.

STEP7

 

Tap“Remove”.

STEP8

 

Profile deletion is complete.

  • ● There is no guarantee that the above steps will work for all SIM free-unlocked smartphones.
  • ● The image on the screen may differ depending on your device.
  • ● The screen images used were taken with an iPhone 12 (iOS 15).

Setting Y!mobie with an Android smartphone

Set up Android APN

Set up an APN to communicate.
Please follow the steps below even if the APN is already set up automatically.

  • ※App icons, locations, menu titles, and other details may differ depending on phone. For more information, please see the manual for your device.

Depending on your device, your APN may be set up automatically. If the mobile communication cannot be established, configure APN in the following steps.

STEP1

 

Swipe up on the Home screen

STEP2

 

Tap “Settings”.

STEP3

 

Tap “Network and Internet”.

  • ※The display may differ depending on the model.

STEP4

 

Tap “Mobile network”.

  • ※The display may differ depending on phone. If “Access Point Names” is displayed in the Settings app as shown in STEP6, proceed to STEP7.

STEP5

 

Tap “Y!mobile”.

STEP6

 

Tap “Advanced settings”, then tap “Access Point Names (APNs)”.

STEP7

 

Check via browser or other app whether the mobile communication is available. → STEP12

If not configured, or if communication cannot be established via automatically configured APN, tap “New APN” in “Menu”.

  • ※Displays and icons such as “+” may differ depending on your device.

STEP7

 

Check via browser or other app whether the mobile communication is available. → STEP12

 

If not configured, or if communication cannot be established via automatically configured APN, tap “New APN” in “Menu”.

  • ※Displays and icons such as “+” may differ depending on your device.

STEP8

 

Verify that New APN is displayed.

STEP9

 

Enter the setting items listed.

STEP9

 

Enter the setting items listed below.

 

STEP10

 

On the ︙ menu, tap “Save”

STEP11

 

You will return to the APN list. Select the name of the APN you just created, swipe up on the bar (—), and return to the Home screen.

  • ※ Some devices may have other methods for returning to the Home screen.

STEP12

 

Tap your browser to confirm connection.

  • ● There is no guarantee that the above steps will work for all SIM free-unlocked smartphones.
  • ● The image on the screen may differ depending on your device.
  • ● The screen images used were taken with a Google Pixel 4 (Android 11.0).

FAQ

Is there any stores where I can be served in English?

Bilingual crew are available at the following direct managed shops.

SoftBank Ginza
https://www.ymobile.jp/shop/detail/TD31/
SoftBank Roppongi
https://www.ymobile.jp/shop/detail/T248/
SoftBank Omotesando
https://www.ymobile.jp/shop/detail/T1D3/
SoftBank Shibuya
https://www.ymobile.jp/shop/detail/T198/
SoftBank Nagoya
https://www.ymobile.jp/shop/detail/C300/
SoftBank Osaka Grand Front
https://www.ymobile.jp/shop/detail/K1U6/

For US Military in Japan customers, bilingual crew will serve you at the following on base shops.

https://www.ymobile.jp/english/military/

Can I get English customer support over the phone?

Yes you can get English support on general inquiries or technical support. Contact one of the following numbers.

From Y!mobile phone: 151
From landline or other carrier's phone: 0570-039-151

For both the above, press “5” for English support.

Chat support on our website is not available in English.

Can I use the Y!mobile SIM card overseas?

Yes. For USIM-only service subscribers, the global roaming option will be available from the 5th month: the day after the last day of the 4th billing month after the service sign up.

Global Roaming Option application is required.

I have a smartphone device purchased overseas. Can I use it just inserting Y!mobile SIM card?

Basically, you can use your own device as long as it supports the following Y!mobile frequency band and communication method.

[5G] 3.7GHz
[4G] 2.5GHz, 2.1GHz, 1.7GHz, 900MHz
[3G] 2.1GHz, 900MHz

The service area coverage varies depending on the communication method and frequency band supported by your device.
Currently high-speed, large-capacity 5G (new frequency) service is provided in a limited area.
Please check the coverage area in advance before you sign up the 5G service.

Depending on the specifications of your device, you may not be able to use the service even if it just adopt the available communication methods and frequencies.
Please ask the manufacturer or retailer for the specifications of your device.

If the device is USIM-locked by the network operator from which the device was originally purchased, it must be unlocked before using the USIM of Ymobile.

Please note that the 3G service is scheduled to end.
https://www.ymobile.jp/support/info/closed3g/

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