Prices include tax unless otherwise noted.
Owing to consumption tax calculation, prices may differ from the invoiced amount.
Shops On Military Bases in Japan, with English Speaking Crew!
Use your Own phone or purchase a New Smartphone,
eSIM service is available
Get a local Japanese Phone Number
Short Term Service available with NO cancellation fee!
What's eSIM?
eSIM is a smartphone with embedded SIM otherwise known as Digital SIM.
If you have an eSIM compatible smartphone, you can sign up the mobile service without newly inserting the physical SIM or replacing the SIM with the existing one. If the device has DSDS: dual SIM dual stand by function, you can even use two different carrier mobile services on one device.
Advantages of eSIM
You can have 2 numbers on 1 device.
Therefore, you can keep your US number while having a Japanese number as well!
You can customize your physical and eSIM! Calls and texts can be set to your US number while data can be set to the Y!mobile eSIM.
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Buy a device |
 eSIM IN
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 SIM Card IN
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Use the device |
eSIM IN
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SIM Card IN
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2026年6月2日（火）より、料金プランの月額料金を改定いたします。
「大切なお知らせ」を見る
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Now with
more data! * |
Plenty to use,
all at a great price! |
10Unlimited domestic calls
up to 10 minutes per call included |
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| S | M | L |
|---|---|---|
| 5GB | 30GB | 35GB |
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Monthly basic usage fee tax excluded:2,780 yen (3,058 yen) |
Monthly basic usage fee tax excluded:3,780 yen (4,158 yen) |
Monthly basic usage fee tax excluded:4,780 yen (5,258 yen) |
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6月2日以降 tax excluded:2,980 yen (3,278 yen) |
6月2日以降 tax excluded:3,980 yen (4,378 yen) |
6月2日以降 tax excluded:4,980 yen (5,478 yen) |
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Please choose your service discount 
Family Discount
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Home Bundle Discount Hikari Set (A) *1
* SoftBank Air subscription example5,368円/月
tax excluded:-1,500yen/month
(-1,650yen/month)discount
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PayPay Card Discount
(PayPay Card Gold) *2 * Annual membership fee: 11,000 yen (tax included)
tax excluded:-500yen/month
(-550yen/month)discount
＊6月2日以降PayPayカード割 増額特典（ゴールド）適用で 220円/月さらに割引 |
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Monthly basic fee
from the following month tax excluded 780 yen (858 yen) |
Monthly basic fee
from the following month tax excluded 1,780 yen (1,958 yen) |
Monthly basic fee
from the following month tax excluded 2,780 yen (3,058 yen) |
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Simple3 S
Not eligible for Parent-Child Discount |
Plus! Get discounts for up to 13 months! |
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tax excluded:-1,000yen/month
(-1,100yen/month)discount |
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Monthly basic fee
From the next monthtax excluded: 780 yen (858 yen) |
Monthly basic fee
From the next monthtax excluded: 1,780 yen (1,958 yen) |
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Family Discount service *1
*Discount can be applied for up to 9 lines
Second and subsequent lines
tax excluded:-1,000yen/month (-1,100yen/month)discount |
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PayPay Card Discount
(PayPay Card Gold) *2 * Annual membership fee: 11,000 yen (tax included)
tax excluded:-500yen/month
(-550yen/month)discount
＊6月2日以降PayPayカード割 増額特典（ゴールド）適用で 220円/月さらに割引 |
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Second and subsequent lines
From the following month, excluding tax 1,280 yen (1,408 yen) |
Second and subsequent lines
From the following month, excluding tax 2,280 yen (2,508 yen) |
Second and subsequent lines
From the following month, excluding tax 3,280 yen (3,608 yen) |
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First line From the following month, excluding tax 2,280 yen (2,508 yen) |
First line From the following month, excluding tax 3,280 yen (3,608 yen) |
First line From the following month, excluding tax 4,280 yen (4,708 yen) |
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Simple3 S
Not eligible for Parent-Child Discount |
Plus! Get discounts for up to 13 months! |
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tax excluded:-1,000yen/month
(-1,100yen/month)discount |
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Second and subsequent lines
From the next monthtax excluded: 1,280 yen (1,408 yen) |
Second and subsequent lines
From the next monthtax excluded: 2,280 yen (2,508 yen) |
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First line From the following month, excluding tax 2,280 yen (2,508 yen) |
First line From the following month, excluding tax 3,280 yen (3,608 yen) |
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Call charges
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| 20yen(22yen)/30Seconds |
Simple3 L at no additional charge10Domestic calls per minuteUnlimited calls |
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*Call charges and device fees are charged separately.
[Other important information]
●Contract month: If the contract is made in the middle of the month, the basic fee will be calculated on a pro rata basis.
●Cancellation month: Even if you cancel in the middle of the month, you will be charged the full basic fee (it will not be prorated).
●Domestic calls cost 22 yen per 30 seconds.
●With Simple3 L, you can make domestic calls of up to 10 minutes per call to mobile phones and landlines (including IP phones) at no additional charge.
If we determine that a call is a long-distance call, we may disconnect the call.
When you sign up for Simple3 L, you can use Voicemail Plus, Fixed-rate Stop Service, Call Waiting, and Group Calls at no additional charge.
A separate application is required to use each service.
If you change your plan to Simple3 S /M while using a service, the monthly fee for that service will be charged from the following month. If you do not wish to use the service, you will need to cancel it separately.
*Some calls are not covered, such as international roaming, international calls (calls to overseas countries), calls to satellite phones, calls to phone numbers beginning with 0570 etc. that other companies charge, and directory assistance (104). Calls to the satellite phone service (Wide Star) provided by NTT Docomo will cost 177.1 yen per 30 seconds.
●Domestic SMS costs 3.3 to 33 yen per message depending on the number of characters sent. Please refer to our terms and conditions for details.
*A contract administration fee will be charged (in-store: 4,950 yen, online: 3,850 yen).Telephone universal service fee, telephone relay service fee, and broadband universal service fee will be charged separately.
●If you wish to use the answering machine service, you will need to subscribe to Answering Machine Plus separately.
●If the amount of data used in a month exceeds the combined total of the specified capacity (5GB/30GB/35GB) and the data capacity added with the Data Extra Data Option (2GB/5GB/5GB for Extra Data Option subscribers only), your data communication speed will be slowed down until the end of that month (up to 300kbps for Simple3 S and 1Mbps for Simple3 M /L when sending and receiving). Furthermore, if you have used up half of the specified capacity (2.5GB/15GB/17.5GB), your data communication speed will be slowed down until the end of that month (up to 128kbps for sending and receiving).
●Some calls are not covered, such as international roaming, international calls (calls to overseas), calls to satellite phones, calls to the answering machine center (1416 when playing back, etc.), calls to forwarding numbers in call forwarding services, Navidial (0570), directory assistance (104), and telephone numbers designated by our company and published separately (ymobile.jp/r/telephone/).
●If we determine that a call is an unauthorized long-term call, we may disconnect the call.
●If you change your plan to an ineligible Price Plan, this option will be automatically canceled.
●If we determine that you have made any of the following calls, we will terminate this service or suspend use of the calls in question on a date specified by us.
- Connecting the phone to any device or facility without our prior permission.
- Using the service for the purpose of directly earning income from communications, such as by using the communication intermediary or forwarding function or connecting to services provided by other companies.
- Calls made automatically using software, computer programming, etc. (excluding those provided by us or telecommunications carriers authorized by us).
- Communications used for purposes other than phone calls.
●With Simple3 L you can make domestic calls of up to 10 minutes without applying for Flat Rate + with anyone, at no additional charge.
・By subscribing to this option, you can use Voicemail Plus, Call Waiting, Group Calls, and Fixed Rate Stop Service from the current month at no additional charge. To use these services, you must apply for each service yourself.
・Even if you cancel this option, any services you have subscribed to separately, such as Voice Mail Plus, will not be canceled, and you will be charged the monthly fees for each service from the following month.
・If you subscribe to Simple3 S /M, the Flat Rate with Anyone/Super Flat Rate with Anyone (S) plans for Simple2 S /M/L and earlier will be canceled.
*[Example] SoftBank Hikari Family: Basic monthly fee of 5,720 yen/month + from 550 yen/month for specified options (Two-year automatic renewal plan: Subscribers who joined on or after July 1, 2022, must pay a 5,720 yen cancellation fee when canceling outside of the contract expiration month, the following month, or the month after that. Click herefor details).
●SoftBank Hikari plans without automatic renewal are not eligible.
●This discount can be applied for up to 10 mobile lines (smartphones/mobile phones/tablets/mobile Wi-Fi routers) per fixed communication service line.
●1,188 yen/month discount for Simple S/M/L. 550 yen/month discount for Smartphone Basic Plan S/M/R/L, Data Basic Plan L, Pocket WiFi® Plan 2 (Basic), Smartphone Plan S, Data Plan L, and Pocket WiFi® Plan 2. 770 yen/month discount for Smartphone Plan M/R. 1,100 yen/month discount for Smartphone Plan L.
●This discount cannot be applied in conjunction with the "Family Discount," "Wi-Fi Set Discount," "Tablet Discount (for Start Campaign)," "Hikari Otoku Discount," "Home Bundle Discount Hikari Set (A) Application Benefit," and "Home Discount Electricity Set (E)."
●Simple2 S gets a 1,100 yen discount every month, and Simple2 M/L gets a 1,650 yen discount every month.
●適用条件：請求締日時点で、
①対象プランに加入していること
②対象プランのお支払い方法に「PayPayカード」または「PayPayカード ゴールド」を設定していること
③個人名義による契約であること
※設定してもカード停止等により決済が行われず、振込用紙およびソフトバンク・ワイモバイル店頭にてカードで決済された場合は対象外です。
●本割引サービスは、適用条件を満たした当該請求月から適用します。
なお、以下に該当する場合等、お支払い方法の変更の適用がお手続き翌請求月となる場合があります。
その場合は、適用条件を満たした翌請求月から適用します。割引対象プランの定額料が日割となる場合、本割引サービスの割引額は日割となります（1円未満の端数が生じた場合は、その端数を切り上げます）。
●PayPayカード330円割引/PayPayカード ゴールド550円割引。
●PayPayカード ゴールド年会費11,000円（税込）要。
●家族カードも対象です。
●請求代行サービスを利用している場合、適用されません。
●解約された場合は、解約日の属する請求月も割引が適用されます。
●2026年6月2日より、シンプル3 S/M/Lにご加入中で、基本料の支払いをPayPayカード（ゴールド）に設定されている方は、「PayPayカード割」の500円/月（550円/月）割引に加え、「PayPayカード割 増額特典（ゴールド）」が適用され、さらに200円/月（220円/月）割引されます。
Only the default data volume and data volume increased by Extra Data Option can be carried over. Additional data volume purchased when applying to return to the standard speed cannot be carried over. Any amount of data less than 100MB carried over will be rounded down.
●Data volume will be consumed in the following order: carried-over data > specified capacity (including data increase through Extra Data Option) > additional purchased data volume.
●For shared plans, data can be carried over during the period when data capacity is shared with the main line (while sharing is in effect). However, any unused data capacity from the month before sharing with the main line begins or the final month when sharing ends will not be carried over to the next month.
● During the application period, if the user is between 5 and 18 years old at the time of application and signs up for Simple 3 M/L through a new subscription, switching from another company (MNP), transferring a number from SoftBank or LINEMO, changing the contract, or changing plans, a 1,100 yen per month discount will apply to the basic usage fee for 13 months, starting from the first month in which all eligibility requirements are met. ● When applying to change your plan through My Y!mobile, you must first complete the application process for the Y!mobile Parent-Child Discount through My Y!mobile first, and then apply to change your plan after receiving the SMS confirming the completion of the procedure. (If the user’s information has already been registered and the user and the subscriber are the same as previously registered, we will not send an SMS confirming the completion of the procedure. In such cases, you can apply to change your plan immediately after applying for this campaign through My Y!mobile.)
Y!mobile Parent and Child Discount (Family)
● During the application period, if you sign up for Simple 3 M/L through a new subscription, switching from another company (MNP), transferring a number from SoftBank or LINEMO, changing the contract, or changing plans, and are enrolled in the Family Discount Service (primary line or secondary line) within the same group as a line to which the Y!mobile Parent-Child Discount is applied, a 1,100 yen per month discount will apply to the basic usage fee for 13 months, starting from the first month in which all eligibility requirements are met.
Important notes for Y!mobile Parent-Child Discount and Y!mobile Parent-Child Discount (Family)
● Simple3 S is a plan that is not eligible for this campaign discount. ●If you apply for a plan change, a plan change between Simple3 M /L is also eligible. ●If you sign a contract other than a plan change, the discount amount will be pro-rated for the month of contract. ●The discount amount will be pro-rated for the month of transfer. ●A contract administration fee (in-store: 4,950 yen, online: 3,850 yen), telephone universal service fee, telephone relay service fee, and broadband universal service fee will be charged separately. ●Prices shown include tax unless otherwise noted. ●The content and period of this campaign may change without notice.
※My Y!mobileからの申し込みは2026年5月24日20時まで
Simple3 M/L
1,100円/月割引
Y!mobile Parent-Child Discount
●Simple3 S is not eligible for this campaign discount.
●When applying for a plan change, changes between Simple3 M and Simple3 L are also eligible.
● If you sign a contract without changing your plan, the discount amount will be prorated for the month of sign-up.
● The discount amount will be prorated for the month of contract transfer.
For Simple 2 M/L
1,100円/月割引
● The Simple 2 S plan is not eligible for this campaign.
● When applying to change a plan, plan changes between Simple 2 M/L are also eligible.
● For contracts other than plan changes, the value of the discount for the sign-up month will be prorated.
● The value of the discount for the month of transfer will be prorated.
● This discount does not apply to months for which total data usage for Simple 2 M/L is less than 1 GB/month. In such cases the value of this discount does not carry over to the following month. Additionally, that month is counted in the discount application period.
Family Discount and Home Discount Electricity Set (E) do not apply to overlapping discounts.
[Subscription example] For SoftBank Hikari Family, a basic fee of 5,720 yen/month plus designated options starting from 550 yen/month is required. (Two-year automatic renewal plan: For subscribers who sign up after July 1, 2022, a cancellation fee of 5,720 yen is required for cancellations other than the month of the contract expiration date, the month following, or the month after.)
Other Notes
● SoftBank Hikari plans without automatic renewal are not eligible.
● Up to 10 mobile phone lines (smartphones/mobile phones/tablets/mobile Wi-Fi routers) can be added per fixed-line communication service.
●Simple S/M/L plans receive a monthly discount of 1,188 yen, Simple2 S receive a monthly discount of 1,100 yen, Simple2 M /L plans receive a monthly discount of 1,650 yen, Smartphone Basic Plan S/M/R/L, Data Basic Plan L, Pocket WiFi® Plan 2 (Basic), Smartphone Plan S, Data Plan L, and Pocket WiFi® Plan 2 receive a monthly discount of 550 yen, Smartphone Plan M/R plans receive a monthly discount of 770 yen, and Smartphone Plan L receives a monthly discount of 1,100 yen.
Home Bundle Discount Hikari Set (A) and Electricity Set (E) cannot be discounted together.
* Discount applies for up to 9 lines
Simple3 S is not included, and Family Discount and Home Bundle Discount Hikari Set (A) do not receive overlapping discounts.
PayPay Card Discount
PayPay Card Gold
* Annual membership fee: 11,000 yen
-550円/月割引
PayPay Card
-330円/月割引
Other Notes
* Simple3 S/M/L are eligible
*If you change the card type of your payment method, the new discount amount will be applied to the billing for the month in which you change your payment method.
●Applicable conditions: When PayPay Card or PayPay Card Gold is applied as a payment method for usage fees as of the billing closing date.
●Family cards are also eligible.
●This does not apply if you are using a billing agency service.
●If the basic usage fee for the discounted Price Plan is calculated on a pro-rata basis, the discount amount for this discount service will also be calculated on a pro-rata basis.
●If the contract is transferred or inherited, the discount will end in the previous billing month.
If you cancel, the discount will also be applied to the billing month in which the cancellation date falls.
For new subscription or device upgrade, in addition to the device purchase cost, an activation fee is required.
| Activation Fee | ¥4,950 |
|---|
We will invoice the activation fee directly to the contract holder at a later date. The activation fee cannot be refunded upon cancellation.
For monthly payment, using a credit card or bank account transfer is recommended.
●After applying, it may take 1 to 2 months for card withdrawals and procedures with financial institutions to be completed. Until then, we will send you an invoice, so please pay from a convenience store or financial institution. ●If you wish to pay by credit card, we will ask you to use a credit card, and if you wish to pay by bank transfer, we will confirm your bankbook or cash card at the time of application.
Credit card in the
cardholder's name
Bank card in the cardholder's
Name or Passbook
+
Select One of the following list.
（1）
Driver's license
（2）
Japanese passport
For the online store application:
The "gender" indication on the card must be covered by something such as a plain piece of paper. If it is not covered, the application process will be canceled.
（3）
Individual Number Card
(My Number Card)
For the online store application:
The "gender" indication and "Organ donation preference" sections on the card must be covered by something such as a plain piece of paper. If they are not covered, the application process will be canceled.
（4）
Health insurance card
+
Supplementary Documents
health insurance card is acceptable
only for underage customers at shops.
（5）
Physical disability certificate
or
（6）
Rehabilitation notebook
or
（7）
Health and Welfare Handbook
for mentally disabled persons
For the online store application:
The "gender," "name of disability (type of disability)" and "degree of disability" indication on the certificates and notebook must be covered by something such as a plain piece of paper. If they are not covered, the application process will be canceled.
（8）
Basic Resident Registration Card(with QR code)
+
Supplementary Documents
For the online store application:
The "gender" and “place of domicile” indication on the card must be covered by something such as a plain piece of paper. If it is not covered, the application process will be canceled.
（9）
Program Card +Foreign Passport
or
（10）
Special Permanent
Residence Certificate
For the online store application:
The "gender" indication on the card must be covered by something such as a plain piece of paper. If it is not covered, the application process will be canceled.
+
Select One of the following list.
（1）
Driver's license
（2）
Japanese passport
For the online store application:
The "gender" indication on the card must be covered by something such as a plain piece of paper. If it is not covered, the application process will be canceled.
（3）
Individual Number Card
(My Number Card)
For the online store application:
The "gender" indication and "Organ donation preference" sections on the card must be covered by something such as a plain piece of paper. If they are not covered, the application process will be canceled.
（4）
Health insurance card
+
Supplementary Documents
health insurance card is acceptable
only for underage customers at shops.
（5）
Physical disability certificate
or
（6）
Rehabilitation notebook
or
（7）
Health and Welfare Handbook
for mentally disabled persons
For the online store application:
The "gender," "name of disability (type of disability)" and "degree of disability" indication on the certificates and notebook must be covered by something such as a plain piece of paper. If they are not covered, the application process will be canceled.
（8）
Basic Resident Registration Card(with QR code)
+
Supplementary Documents
For the online store application:
The "gender" and “place of domicile” indication on the card must be covered by something such as a plain piece of paper. If it is not covered, the application process will be canceled.
（9）
Program Card +Foreign Passport
or
（10）
Special Permanent
Residence Certificate
For the online store application:
The "gender" indication on the card must be covered by something such as a plain piece of paper. If it is not covered, the application process will be canceled.
We are enhancing the verification of identity documents.
In addition to presenting the above-mentioned "Proof of Identification" at the time of "upgrading (change of contract) / issuance of MNP (transfer) reservation number / exchange / reissue of USIM / number transfer※ / exchange of delivery (malfunction, theft or loss)" We will confirm your phone number using your mobile phone or confirm your intention to sign a contract over the phone.
If we are unable to respond due to malfunction/loss, etc., please "present one additional identification document" or "present the credit card/cash card that has been set as the payment destination." *Changing between SoftBank, Y!mobile, and LINEMO
When switching from another company to Y!mobile smartphone or mobile phones, you can use Mobile Number Portability (MNP) to keep your current phone number.
Call 0120-001-659
[Service hours] 9:00-20:00
WEB my UQ mobile → log-in
[Service hours] 24 hours
Guidance for SIM unlock
[Service hours] 24 hours
call 050-5434-4653
［Service hours］ 9:00〜17:00
WEB (docomo / AU lines) MemberStation → log-in
WEB (Rakuten line) my RakutenMobile → log-in
No procedure is required for SIM unlock.
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 | |
We have shops on all major US military installations in Japan, with English Speaking Crew to support your needs.
Y!mobile service sign up is available at any on base SoftBank shop.
Due to the current circumstances, operational hours of each shop may change.
Please confirm the shop operational status and hours before visiting.
Yes, if your device is unlocked we can offer you a Y!mobile eSIM.
You can continue to use your stateside SIM and an embedded SIM with Japanese phone number simultaneously. *Conditions apply
If you could get the USIM unlocked on your current device, in most of the cases you can keep using your device just subscribing for Y!mobile USIM only contract.
We also offer prepaid service. Y!mobile plan can be canceled at any time without any cancellation fee. We suggest our regular service plan as it is reasonable without 2 years commitment.
Yes, of course! You can keep the same phone number and switch over between two brands free of charge.
Yes, all service plans are 5G compatible. You can check the current service area map from our SoftBank website.
Y!mobile offers 5GB, 30GB, and 35GB data.
Our primary brand, SoftBank will be your best choice for unlimited data.
Please check the site below.
Mobile Service for US Military in Japan, SoftBank
Both SoftBank and Y!mobile phones and services are available at on base SoftBank shops.
Even after the contract data amount is used up, you can continue to use the data at a speed of 300 kbps for Simple3 S, and 1 Mbps for Simple3 M and L.
Please visit your nearest on base SoftBank shop with your:
1) Military ID, or SOFA ID
2) States ID, Stateside Driver's License, or US Passport
3) Credit card or debit card for your monthly payment method
4) Ensure your device is UNLOCKED by your carrier for SIM only account
If you live off base you can apply online from our Y!mobile Japanese website.
We highly recommend you to visit the shop for English consultation.
Please visit your nearest Softbank shop on the day you wish to terminate your service.
No, there is no advance service termination reservation at this time.
Also check the site below if you are looking for unlimited data plan or latest phone models.
Mobile Service for US Military in Japan, SoftBank
Information
The following page is provided in Japanese only at the moment. To view the content in other languages, we suggest using Google Chrome's translation feature.
*However, please be aware that translations provided by Google Chrome might not be perfect and should ideally be used for reference only