My SoftBank
Shop
JAPANESE
  1. Home
  2. Mobile
  3. Services
  4. Global Service
  5. Unlimited Global Data Roaming
JAPANESE

List of Eligible Plans 

Plan Name Maximum Usage Period
Per Month
Data Plan Pay-toku2 1 Month
Data Plan Teigaku Unlimited 1 Month
Data Plan Mini Fit2 5 Days
Data Plan Pay-Toku Unlimited/50/30 5 Days
Data Plan Merihari Unlimited Plus 5 Days
Data Plan Mini Fit Plus 5 Days
データプラン20GB/4GB
（スマホ）		 3 Days
データプラン4GB（ケータイ） 3 Days
Data Plan Merihari Unlimited 5 Days
Data Plan Merihari*1 5 Days
データプラン50GB＋*1 5 Days
Data Plan Mini Fit*1 3 Days
データプランミニ*1 3 Days
データプラン3GB 3 Days
データ定額 50GBプラス 5 Days
データ定額ミニモンスター 3 Days
データ定額スマホデビュー 3 Days
データ定額 50GB/30GB*1 5 Days
データ定額 20GB/5GB*1 3 Days
データ定額ミニ 2GB/1GB*1 3 Days
データ定額パック ・大容量
（30）*1		 5 Days
データ定額パック ・大容量
（20/15/10）		 3 Days
データ定額パック ・標準（8）*1 3 Days
データ定額（おてがるプラン専用）*1 3 Days
データ定額パック（シンプルスマホ）*1 3 Days
家族データシェア 100GB/50GB*1 5 Days
家族データシェア 15GB/10GB*1 3 Days
パケットし放題フラット for 4G LTE 3 Days
パケットし放題 for 4G LTE 3 Days
パケットし放題 フラット for 4G 3 Days
パケットし放題 for 4G 3 Days
パケットし放題フラット for 4G（シンプルスマホ） 3 Days
法人データシェアギガパック
（100/50）*1		 5 Days
法人データシェア専用パック
（20/15/10）*1		 3 Days
法人データシェア専用パック（3000/2000/1500/1000 /700/500/400/300/250/200 /150/100/70/50/30）*1 5 Days
  1. Eligible for smartphones/mobile handsets only (excludes data-only devices like tablets/mobile Wi-Fi routers)

Unlimited Global Data Roaming Unlimited Global Data Roaming

Unlimited data in more than 200 countries and regions! Unlimited data in more than 200 countries and regions!

Pay-Toku2 / Teigaku Unlimited

Unlimited Use All the Time! Unlimited Use All the Time! *2

During automated/mechanical communications, data speeds may be restricted. If your total domestic and overseas data usage exceeds 300GB within the most recent 30-day period, the data speed will be restricted to a range that does not impact normal use (maximum 4.5Mbps).  If overseas usage exceeds 35 days within the most recent 60-day period, the maximum speed will be restricted to 128Kbps.

Mini Fit2*3

Up to 5 Days Per month Up to 5 Days Per month

If usage exceeds 10GB within a 24-hour period, the data speed will be restricted to a range that does not impact normal use (maximum 4.5Mbps).

For Pay-Toku, Mini Fit Plan Plus
*3,4and Other Eligible Plans

Up to 3 or 5 Days Per Month Up to 3 or 5 Days Per Month

If usage exceeds 10GB within a 24-hour period, the data speed will be restricted to a range that does not impact normal use (maximum 4.5Mbps).

Check how many days you can get
unlimited data
at no additional charge
under your current rate plan!

Check on My SoftBank
See list of eligible plans
  • Voice calls, SMS, and international SMS used overseas are excluded. Certain models are excluded.
  • For Flat-rate group L, if usage exceeds 10GB within a 24-hour period, the data speed will be restricted to a range that does not impact normal use (maximum 4.5Mbps).
  1. The applicable areas are those designated under Flat-rate group L of the "Worry-free Global Roaming Flat Rate" service. Click here for applicable areas. As of April 10, 2026
  2. Until a separate end date is announced on the official SoftBank website (scheduled for December 2026 or later), you can use the Flat-rate group L plan under the "Worry-free Global Roaming Flat Rate" service for up to 31 days (744 hours) per billing month, selected in 24-hour increments. To use the "Worry-free Global Roaming Flat Rate" service, you must access the dedicated website and complete the activation process.
  3. Flat-rate plan fees are exempt from consumption tax. You must be currently using an iPhone, smartphone, or SoftBank mobile phone. Any unused days at the end of a billing month cannot be carried over to the following month.
  4. The period available at no additional charge (hereinafter referred to as the "eligible usage period") varies depending on the eligible plan.

Unlimited Global Data Roaming Unlimited Global Data Roaming
Travel with peace of mind 4Major Worry-Free Features Travel with peace of mind 4Major Worry-Free Features

Worry-Free Feature1 Worry-Free Feature1

Use your smartphone around the world

Covers 99% of popular overseas destinations*5! Covers 99% of popular overseas destinations*5!

Requires a subscription to Global Roaming
Service and Worry-free Global Roaming Flat Rate.

View applicable countries/regions
Worry-Free Feature2 Worry-Free Feature2
No Wi-Fi router contracts or complicated setups! No Wi-Fi router contracts or complicated setups!

Manage everything right from your
smartphone, from sign-up to usage!

Worry-Free Feature3 Worry-Free Feature3
Tethering available overseas! Tethering available overseas!

Connect your PC or tablet!

Worry-Free Feature4 Worry-Free Feature4
24-Hour worry-free phone support 24-Hour worry-free phone support

Travel with peace of mind if anything happens while you are abroad

  1. Percentage of customers who can use data overseas, excluding the United States. Calculated based on monthly travel data of SoftBank customers in 2025.

Incredibly easy Usage Settings Incredibly easy Usage Settings

Before traveling

STEP 01

Check if you are subscribed to the required options for overseas use

Check if you have subscriptions for "Global Roaming Service" and "Worry-free Global Roaming Flat Rate" under the "Optional Services" section on My SoftBank.

Check on My SoftBank

If you are not subscribed to "Worry-free Global Roaming Flat Rate"

Please sign up from the dedicated web site.

Sign up
via the dedicated site
  • ・ Sign-up requests cannot be accepted between 11:25 pm and 12:30 am the following day (Japan Standard Time).
  • ・ From 12:30 am to 5:00 am (Japan Standard Time), it may take about 30 minutes to complete the sign-up request.
  • ・ Sign-up requests may not be possible at times due to system maintenance.
  • ・ The maximum flat-rate fee for using "Global Roaming Packet Flat Rate on the day (Japan Standard Time) that you sign up is ¥980. However, the maximum flat-rate fee of ¥980 is limited to once per billing month. For usage in areas not covered by the "Global Roaming Packet Flat Rate" plan, standard non-flat-rate fees will apply.
STEP 02

Enable data roaming

Review the setup instructions and configure data roaming settings.

iPhone Smartphone 4G Mobile Handset
  • ・ The settings can also be configured at your overseas destination.

At your overseas destination

STEP 03

Check the SMS message from SoftBank

You will receive an SMS message from SoftBank when you arrive at your overseas destination.

STEP 04

Access the dedicated site from the SMS message and start using the service

Select your plan on the dedicated site.

  • ・ There is no fee for connecting.
  • ・ A fee will be incurred when the service is started.
  • ・ You can complete the activation process while connected to an overseas mobile network (please turn off Wi-Fi to proceed).
  • ・ If you are using iCloud Private Relay or a VPN, turn them off before completing the activation process.
  • ・ Customers using mobile data communication devices can also activate the service from here.
  • ・ If you move to a country or region not included in "Flat-rate group L" after service activation, your data service will be suspended.
  • ・ If the "Worry-free Global Roaming Flat Rate" service is terminated or canceled after activation, your active plan will immediately expire upon cancellation.
  • <Unlimited Global Data Roaming (1 Month)>
  • ・ Although the "Worry-free Global Roaming Flat Rate" sign-up screen will display a fee corresponding to your selected plan, no separate charges will be billed.
  • <Unlimited Global Data Roaming (3 Days) / Unlimited Global Data Roaming (5 Days)>
  • ・ Although the "Worry-free Global Roaming Flat Rate" setup screen will display a fee corresponding to the eligible usage period, no separate charges will be billed for the duration of that eligible usage period.
Start Service

Important Notes

<Unlimited Global Data Roaming (1 Month)>

  • The provision of this service will terminate on the day any of the following conditions are met:
    • (1) If you change to a data plan that is ineligible.
    • (2) If "Global Roaming Service" is canceled.
    • (3) If the SoftBank line is terminated due to cancellation or any other reason(including MNP or number transfer).
    • (4) If you sign up for the Keep My Number Service.
  • While subscribed to "Data Share Plus," you can use this service if the data flat-rate service applied to the primary line is an eligible data plan. However, it cannot be used on secondary lines.
  • This service is provided by preferentially connecting to overseas carriers designated by SoftBank. Customers may not be able to manually select certain overseas carriers as their connection destination.
  • Customers who transfer a large amount of data within a certain time period may have their data speed limited. In addition, traffic information is collected, analyzed, and stored for each data transfer to improve network quality, and restrictions may be applied to data transfers separately specified by SoftBank.
  • <Until a separate end date is announced on the official SoftBank website (scheduled for December 2026 or later)>
  • During the applicable period of the "Global Roaming Packet Flat Rate" service, you can use this service at no additional charge for up to the number of days in a single billing month.

<Unlimited Global Data Roaming (3 Days) / Unlimited Global Data Roaming (5 Days)>

  • The provision of this service will terminate on the day any of the following conditions are met:
    • (1) If you change to a data plan that is ineligible.
    • (2) If "Global Roaming Service" is canceled.
    • (3) If the SoftBank line is terminated due to cancellation or any other reason(including MNP or number transfer).
    • (4) If you sign up for the Keep My Number Service.
  • While subscribed to "Data Share Plus," you can use this service if the data flat-rate service applied to the primary line is an eligible data plan. However, it cannot be used on secondary lines.
  • <Until a separate end date is announced on the official SoftBank website (scheduled for December 2026 or later)>
  • As long as it is within the remaining eligible usage period at the time of sign-up for the "Worry-free Global Roaming Flat Rate," the eligible usage period for that month will be applied even if the usage period of the selected plan crosses over the last day of the billing month. Furthermore, if the usage period of the selected plan exceeds the remaining eligible usage period at the time when signing up for the plan, this service cannot be used for the portion of the period that exceeds it.
  • During the applicable period of the "Global Roaming Packet Flat Rate" service, the "Global Roaming Packet Flat Rate" service can also be used for up to a maximum of 3 days or 5 days according to the eligible data plan that the customer is subscribed to.
  • If the "Global Roaming Packet Flat Rate" service is used beyond the eligible usage period, the amount for the exceeded portion will be billed in accordance with the terms and conditions of the "Global Roaming Packet Flat Rate" service.

<Worry-free Global Roaming Flat Rate>

  • If a customer starts using the plan and cancels their SoftBank line on the same day (Japan Standard Time), the flat-rate fee for the plan will not apply, and the flat-rate fee for "Global Roaming Packet Flat Rate" or data usage fees not subject to the flat-rate fee will apply.
  • Once you start using the plan, it cannot be canceled.
  • "Global Roaming Packet Flat Rate" is not applied when "Worry-free Global Roaming Flat Rate" is applied.
  • Due to circumstances of overseas carriers, the country you are traveling to may differ from the country displayed on the web site screen.
  • Customers who wish to use the "Global Roaming Packet Flat Rate" service must cancel the "Worry-free Global Roaming Flat Rate" service from here.
  • This service is provided by preferentially connecting to overseas carriers designated by the SoftBank. Customers may not be able to manually select certain overseas carriers as their connection destination.
  • You can cancel this service at My SoftBank. The cancellation will take effect from 12:00 am midnight (Japan Standard Time) following the time the application is accepted. The remaining time in the plan will become unavailable at the same time. After the cancellation, the flat-rate data fees and non-flat-rate data fees of the "Global Roaming Packet Flat Rate" service will apply.
  • If any of the following applies to a SoftBank line to which the Worry-free Global Roaming Flat Rate is applied, the application of the service will terminate on the day specified below (Japan Standard Time):
    • (1) If the Global Roaming Service was terminated
      The day when the Global Roaming Service was terminated
    • (2) If you requested a change to a price plan that was not covered by the plan
      The day when the change was requested
    • (3) If the service was canceled due to a SoftBank line being canceled or another reason
      The day before the line was canceled
    • (4) If you signed up for the Keep My Number Service
      The day when you signed up for the Keep My Number Service
  • Service details of the plan may change without notice.
    View the terms and conditions for "Worry-free Global Roaming Flat Rate" 
  • If your data speed is currently restricted due to your data usage exceeding 10GB within a 24-hour period under a "Flat-rate group L" plan, you cannot reapply for a plan until the current plan's duration has elapsed.
Return to Global Service