English Guide｜Y!mobile

For US Military Customers in Japan Online Sign-up Guidance

Service Guide
Device Setting Guide
FAQ

Price Plans
Discount Services
Sign-up Guide

Prices include tax unless otherwise noted.
These may differ from charged prices due to calculation of consumption tax.

Top Three Reasons for choosing Y!mobile

3GB for fast internet service and calling

SoftBank Network is Wide, Fast and Comfortable!

Price Plans

The basic charge is guaranteed to never increase! Every plan is 5G^※1 applicable

5G with a high-speed and a large-capacity (new frequency is 3.7 GHz only) 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 [Monthly Data Usage] If you exceed the sum of your monthly data allowance (3 GB/15 GB/25 GB) and any additional data allowance with Extra Data Option (if you have signed up for it; 2 GB/5 GB/5 GB), the maximum speed is reduced to 300kbps in Simple S and 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 3] First time applicant for Extra Data Option (¥550/month) will enjoy 6 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 [Simple S Extra Data campaign] •Campaign period: June 14, 2023 to undetermined end date •The month when Extra Data Option starts applying is counted as the first month. If you are subscribed to a plan other than Simple S when you sign up for Extra Data Option or otherwise do not fulfill the conditions and are ineligible for the bonus to apply, the month when Extra Data Option starts applying will still be the first month. •For up to 7 months, you can make up to 2 additional purchases of data at ¥550/0.5 GB free of charge. You must purchase the additional data yourself. •Corporate users are not eligible. •Additional purchases cannot be carried over to the next month. •If you change to a plan that is not eligible for this campaign or cancel Extra Data Option, the campaign will cease applying from the month of the change or cancellation, even if the bonus period is still running.
*7 When you subscribe Simple S/M/L, Super Daretodemo Teigaku for Smartphone Basic plan will terminate.
*8 [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), 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.
*9 If the user is 60 years or older and is subscribed or intends to subscribe to Super Flat Rate to Anyone (S), they will receive a discount from the monthly charge for Super Flat Rate to Anyone (S) (application required) by applying for the 60+ Permanent Call Discount Campaign. A document confirming the user’s age is required when applying for the campaign. Not available with “Domestic Call Discount Campaign when Changing Contracts to a Mobile Handset/Smartphone.”

○Activation Fee of ¥3,850, Universal Service Charge, and telephone relay service charges 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.
○The campaign may change or end at any time without prior notice.
○The information provided is as of June 9, 2023.

Discount Service

Family Discount

Application Required

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

From the Second Line(and multiple lines)

※ For subsequent lines, Simple S/M/L and Pocket WiFi® Plan 2 (Basic) are applicable for enjoying Family Discount Service. Share Plans are not applicable. For Pocket WiFi® Plan 2 (Basic), you will get a ¥550 discount.

■ 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, application of privilege 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 the campaigns or discounts seen here end, there will be a notification on Y!mobile website.
• The discounts (tax excluded) of these campaigns are taken from the basic fees (excluded 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 WiFi® Plan 2 (Basic). Applicable number of lines for this discount are up to 10 lines per 1 line of the Fixed-line Internet Service. For Pocket WiFi® Plan 2 (Basic) or Data Basic Plan L, you will get a ¥550 discount.
※1 [Example of subscription] For SoftBank Hikari Family, charges of ¥5,720/month (on an automatically renewing 2-year contract; customers contracting on or after July 1, 2022 who cancel outside the month when the contract term expires or either of the following 2 months incur a cancellation charge of ¥5,720) and designated option charges from ¥550/month are payable separately. See here (https://u.softbank.jp/3KFwQRZ) for details about the cancellation charge.
※2 Opting into 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 the campaigns or discounts seen here end, there will be a notification on Y!mobile website.
• The discounts (tax excluded) of these campaigns are taken from the basic fees (excluded taxes).

Sign-up Guide

Payment Method (Options)

For monthly payment, using a credit card is recommended.

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.

※It will take about 1 or 2 months to set up withdrawals or complete bank transactions after application is made. Until then, we will send an invoice with transfer bill, so please pay at a convenience store or bank during this time. ※When registering your payment method, we will need to confirm your credit card or your bank book or cash card. ※Please see Y!mobile website for banks that accept the bank transfer payments.

Application Fee

Cell Phone Number Portability (MNP)

When changing from another company 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.In the online store, you can carry out procedures without an MNP reservation number if one-stop MNP is available with the carrier you are transferring from.

※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

Under the Mobile Phone Improper Use Prevention Act, you are required to present the documents stipulated by Y!mobile when you enter into a contract. See the Y!mobile website (▶https://www.ymobile.jp/support/process/honkaku/) for details. You are required to present the documents in the box below when applying for an instalment purchase contract.

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 the document shows an address different from your current address or no address at all, supplementary documents 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 enter into a contract for instalment payment. ※ You do not need to show your foreign passport if your residence status is “Permanent Resident (PR)” or “Highly Skilled Professional (ii).” ※ For an up-grade, you do not need to show your foreign passport if you present your Residence Card. ※ Foreign nationals applying for instalment purchase contracts or per-item credit purchase brokerage contracts will need these confirmation documents.

Residence Card + Foreign Passport
or
Special Permanent Residence Certificate
■ Document must be valid.　
■ Must have your current address written on it.

※ If the document shows an address different from your current address or no address at all, supplementary documents 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 enter into a contract for instalment payment.
※ You do not need to show your foreign passport if your residence status is “Permanent Resident (PR)” or “Highly Skilled Professional (ii).”
※ For an up-grade, you do not need to show your foreign passport if you present your Residence Card.
※ Foreign nationals applying for instalment purchase contracts or per-item credit purchase brokerage contracts will need these confirmation documents.

■ 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 document with your current address.(We cannot accept documents that we cannot confirm your correct address with, such as ones showing only the building name or room number)

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	Press “5” for English support

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

Set up iPhone APN
When transferring SIM from another company

Setting Y!mobile with an Android smartphone

Set up Android APN

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” > “VPN and device management” > “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 16).